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Dr. Aritra Ghosh
University of Exeter, UK

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Journal article
Published: 28 August 2021 in Energies
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Higher penetration of variable renewable energy sources into the grid brings down the plant load factor of thermal power plants. However, during sudden changes in load, the thermal power plants support the grid, though at higher ramping rates and with inefficient operation. Hence, further renewable additions must be backed by battery energy storage systems to limit the ramping rate of a thermal power plant and to avoid deploying diesel generators. In this paper, battery-integrated renewable energy systems that include floating solar, bifacial rooftop, and wind energy systems are evaluated for a designated smart city in India to reduce ramping support by a thermal power plant. Two variants of adaptive-local-attractor-based quantum-behaved particle swarm optimization (ALA-QPSO) are applied for optimal sizing of battery-integrated and hybrid renewable energy sources to minimize the levelized cost of energy (LCoE), battery life cycle loss (LCL), and loss of power supply probability (LPSP). The obtained results are then compared with four variants of differential evolution. The results show that out of 427 MW of the energy potential, an optimal set of hybrid renewable energy sources containing 274 MW of rooftop PV, 99 MW of floating PV, and 60 MW of wind energy systems supported by 131 MWh of batteries results in an LPSP of 0.005%, an LCoE of 0.077 USD/kW, and an LCL of 0.0087. A sensitivity analysis of the results obtained through ALA-QPSO is performed to assess the impact of damage to batteries and unplanned load appreciation, and it is found that the optimal set results in more energy sustainability.

ACS Style

Ramakrishna S. S. Nuvvula; Devaraj Elangovan; Kishore Srinivasa Teegala; Rajvikram Madurai Elavarasan; Rabiul Islam; Ravikiran Inapakurthi. Optimal Sizing of Battery-Integrated Hybrid Renewable Energy Sources with Ramp Rate Limitations on a Grid Using ALA-QPSO. Energies 2021, 14, 5368 .

AMA Style

Ramakrishna S. S. Nuvvula, Devaraj Elangovan, Kishore Srinivasa Teegala, Rajvikram Madurai Elavarasan, Rabiul Islam, Ravikiran Inapakurthi. Optimal Sizing of Battery-Integrated Hybrid Renewable Energy Sources with Ramp Rate Limitations on a Grid Using ALA-QPSO. Energies. 2021; 14 (17):5368.

Chicago/Turabian Style

Ramakrishna S. S. Nuvvula; Devaraj Elangovan; Kishore Srinivasa Teegala; Rajvikram Madurai Elavarasan; Rabiul Islam; Ravikiran Inapakurthi. 2021. "Optimal Sizing of Battery-Integrated Hybrid Renewable Energy Sources with Ramp Rate Limitations on a Grid Using ALA-QPSO." Energies 14, no. 17: 5368.

Journal article
Published: 26 August 2021 in Energies
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Solar energy is going to be a major component of global energy generation. Loss due to dust deposition has raised a great concern to the investors in this field. Pre-estimation of this reduced generation and hence the economic loss will help the operators’ readiness for efficient and enhanced economic energy management of the system. In an earlier article, a physics–based model is proposed for assessment of dust accumulation under various climatic conditions which is validated by data of a single location. In this paper, the universality of this model is established and is used to demonstrate the effect of generation loss due to dust deposition and of cleaning. Variation in the soiling pattern due to climatic covariates has also been studied. Generation loss is calculated for Solar Photovoltaic power plants of different capacities at various locations in India. Finally this model has also been extended to predict the generation accounting for the soiling loss in Photovoltaic system. All the calculated and predicted results are validated with the measured values of the above plants.

ACS Style

Saheli Sengupta; Aritra Ghosh; Tapas K. Mallick; Chandan Kumar Chanda; Hiranmay Saha; Indrajit Bose; Joydip Jana; Samarjit Sengupta. Model Based Generation Prediction of SPV Power Plant Due to Weather Stressed Soiling. Energies 2021, 14, 5305 .

AMA Style

Saheli Sengupta, Aritra Ghosh, Tapas K. Mallick, Chandan Kumar Chanda, Hiranmay Saha, Indrajit Bose, Joydip Jana, Samarjit Sengupta. Model Based Generation Prediction of SPV Power Plant Due to Weather Stressed Soiling. Energies. 2021; 14 (17):5305.

Chicago/Turabian Style

Saheli Sengupta; Aritra Ghosh; Tapas K. Mallick; Chandan Kumar Chanda; Hiranmay Saha; Indrajit Bose; Joydip Jana; Samarjit Sengupta. 2021. "Model Based Generation Prediction of SPV Power Plant Due to Weather Stressed Soiling." Energies 14, no. 17: 5305.

Journal article
Published: 25 August 2021 in World Electric Vehicle Journal
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Due to depleting fossil fuel reserves coupled with a climate crisis, sustainability is gaining ground, and electric vehicles (EVs) are emerging to be the new face of this field. However, the idea of EVs will be genuinely sustainable only if they are charged using renewable energy. This paper presents results from the design of a solar-powered EV charging station for an Indian context. PVsyst 7.2 software has been used for the system design. The analysis, based on the number of cars charged annually, the monthly variation in energy generation, the investment cost, and the decrease in carbon dioxide (CO2) emissions using different module technologies for six Indian cities, has been deliberated. The results indicate that an off-grid 8.1 kWp system with two days of battery autonomy has the fewest unused energy losses, with a good performance ratio (PR). It can completely charge around 414 vehicles of 30 kWh battery capacity annually. This would help to reduce annual CO2 emissions by approximately 7950 kg. For cities near the equator, maximum energy is produced during March or January, and for cities near the Tropic of Cancer, energy production maximizes during May–June. The overall system has better energy generation and economy when monocrystalline modules are used.

ACS Style

Aanya Singh; Shubham Sanjay Shaha; Nikhil P G; Yendaluru Raja Sekhar; Shaik Saboor; Aritra Ghosh. Design and Analysis of a Solar-Powered Electric Vehicle Charging Station for Indian Cities. World Electric Vehicle Journal 2021, 12, 132 .

AMA Style

Aanya Singh, Shubham Sanjay Shaha, Nikhil P G, Yendaluru Raja Sekhar, Shaik Saboor, Aritra Ghosh. Design and Analysis of a Solar-Powered Electric Vehicle Charging Station for Indian Cities. World Electric Vehicle Journal. 2021; 12 (3):132.

Chicago/Turabian Style

Aanya Singh; Shubham Sanjay Shaha; Nikhil P G; Yendaluru Raja Sekhar; Shaik Saboor; Aritra Ghosh. 2021. "Design and Analysis of a Solar-Powered Electric Vehicle Charging Station for Indian Cities." World Electric Vehicle Journal 12, no. 3: 132.

Journal article
Published: 23 August 2021 in Energies
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The restructuring of power systems and the ever-increasing demand for electricity have given rise to congestion in power networks. The use of distributed generators (DGs) may play a significant role in tackling such issues. DGs may be integrated with electrical power networks to regulate the drift of power in the transmission lines, thereby increasing the power transfer capabilities of lines and improving the overall performance of electrical networks. In this article, an effective method based on the Harris hawks optimization (HHO) algorithm is used to select the optimum capacity, number, and site of solar-based DGs to reduce real power losses and voltage deviation. The proposed HHO has been tested with a complex benchmark function then applied to the IEEE 33 and IEEE 69 bus radial distribution systems. The single and multiple solar-based DGs are optimized for the optimum size and site with a unity power factor. It is observed that the overall performance of the systems is enhanced when additional DGs are installed. Moreover, considering the stochastic and sporadic nature of solar irradiance, the practical size of DG has been suggested based on analysis that may be adopted while designing the actual photovoltaic (PV) plant for usage. The obtained simulation outcomes are compared with the latest state-of-the-art literature and suggest that the proposed HHO is capable of processing complex high dimensional benchmark functions and has capability to handle problems pertaining to electrical distribution in an effective manner.

ACS Style

Suprava Chakraborty; Sumit Verma; Aprajita Salgotra; Rajvikram Madurai Elavarasan; Devaraj Elangovan; Lucian Mihet-Popa. Solar-Based DG Allocation Using Harris Hawks Optimization While Considering Practical Aspects. Energies 2021, 14, 5206 .

AMA Style

Suprava Chakraborty, Sumit Verma, Aprajita Salgotra, Rajvikram Madurai Elavarasan, Devaraj Elangovan, Lucian Mihet-Popa. Solar-Based DG Allocation Using Harris Hawks Optimization While Considering Practical Aspects. Energies. 2021; 14 (16):5206.

Chicago/Turabian Style

Suprava Chakraborty; Sumit Verma; Aprajita Salgotra; Rajvikram Madurai Elavarasan; Devaraj Elangovan; Lucian Mihet-Popa. 2021. "Solar-Based DG Allocation Using Harris Hawks Optimization While Considering Practical Aspects." Energies 14, no. 16: 5206.

Review
Published: 29 July 2021 in Energies
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Power quality (PQ) has become an important topic in today’s power system scenario. PQ issues are raised not only in normal three-phase systems but also with the incorporation of different distributed generations (DGs), including renewable energy sources, storage systems, and other systems like diesel generators, fuel cells, etc. The prevalence of these issues comes from the non-linear features and rapid changing of power electronics devices, such as switch-mode converters for adjustable speed drives and diode or thyristor rectifiers. The wide use of these fast switching devices in the utility system leads to an increase in disturbances associated with harmonics and reactive power. The occurrence of PQ disturbances in turn creates several unwanted effects on the utility system. Therefore, many researchers are working on the enhancement of PQ using different custom power devices (CPDs). In this work, the authors highlight the significance of the PQ in the utility network, its effect, and its solution, using different CPDs, such as passive, active, and hybrid filters. Further, the authors point out several compensation strategies, including reference signal generation and gating signal strategies. In addition, this paper also presents the role of the active power filter (APF) in different DG systems. Some technical and economic considerations and future developments are also discussed in this literature. For easy reference, a volume of journals of more than 140 publications on this particular subject is reported. The effectiveness of this research work will boost researchers’ ability to select proper control methodology and compensation strategy for various applications of APFs for improving PQ.

ACS Style

Soumya Das; Prakash Ray; Arun Sahoo; Somula Ramasubbareddy; Thanikanti Babu; Nallapaneni Kumar; Rajvikram Elavarasan; Lucian Mihet-Popa. A Comprehensive Survey on Different Control Strategies and Applications of Active Power Filters for Power Quality Improvement. Energies 2021, 14, 4589 .

AMA Style

Soumya Das, Prakash Ray, Arun Sahoo, Somula Ramasubbareddy, Thanikanti Babu, Nallapaneni Kumar, Rajvikram Elavarasan, Lucian Mihet-Popa. A Comprehensive Survey on Different Control Strategies and Applications of Active Power Filters for Power Quality Improvement. Energies. 2021; 14 (15):4589.

Chicago/Turabian Style

Soumya Das; Prakash Ray; Arun Sahoo; Somula Ramasubbareddy; Thanikanti Babu; Nallapaneni Kumar; Rajvikram Elavarasan; Lucian Mihet-Popa. 2021. "A Comprehensive Survey on Different Control Strategies and Applications of Active Power Filters for Power Quality Improvement." Energies 14, no. 15: 4589.

Review
Published: 24 July 2021 in Energies
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Increasing energy demand in buildings with a 40% global share and 30% greenhouse gas emissions has accounted for climate change and a consequent crisis encouraging improvement of building energy efficiency to achieve the combined benefit of energy, economy, and environment. For an efficient system, the optimization of different design control strategies such as building space load, occupancy, lighting, and HVAC becomes inevitable. Therefore, interdisciplinary teamwork of developers, designers, architects, and consumers to deliver a high-performance building becomes essential. This review aims to endorse the importance of Building Performance Simulation in the pre-design phase along with the challenges faced during its adaptation to implementation. A morphology chart is structured to showcase the improvement in Building Energy Efficiency by implementing Building Performance Simulation for different building energy systems and by implementing various energy efficiency strategies to achieve the 3E benefit. As a developing nation, India still lacks mass application of Building Performance Simulation tools for improving Building Energy Efficiency due to improper channelizing or implementation; thus, this framework will enable the designers, architects, researchers to contemplate variable building energy optimization scenarios.

ACS Style

Binju Raj; Chandan Meena; Nehul Agarwal; Lohit Saini; Shabir Hussain Khahro; Umashankar Subramaniam; Aritra Ghosh. A Review on Numerical Approach to Achieve Building Energy Efficiency for Energy, Economy and Environment (3E) Benefit. Energies 2021, 14, 4487 .

AMA Style

Binju Raj, Chandan Meena, Nehul Agarwal, Lohit Saini, Shabir Hussain Khahro, Umashankar Subramaniam, Aritra Ghosh. A Review on Numerical Approach to Achieve Building Energy Efficiency for Energy, Economy and Environment (3E) Benefit. Energies. 2021; 14 (15):4487.

Chicago/Turabian Style

Binju Raj; Chandan Meena; Nehul Agarwal; Lohit Saini; Shabir Hussain Khahro; Umashankar Subramaniam; Aritra Ghosh. 2021. "A Review on Numerical Approach to Achieve Building Energy Efficiency for Energy, Economy and Environment (3E) Benefit." Energies 14, no. 15: 4487.

Review
Published: 12 July 2021 in The Chemical Record
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The cover picture demonstrates the origin of environmental water pollution causes happening from a wide variety of industrial operations and anthropogenic activities. Particularly heavy metal ions containing wastewater from these proceedings specifically, textile industrial effluent generate unfavourable impact on the aquatic environment and severe threats to human beings because of carcinogenic effects. To remediate the concern mentioned above using graphene structured materials, graphene oxide as an adsorbent fight against the heavy metal pollutants and exhibits enhance removal capabilities compared to other carbon-based materials. These findings have significant implications for graphene oxide further integrity and durability in systems involving incidental or purposeful exposure of wastewater treatment. See the Personal Account by S. Sundaram and co-workers (DOI:10.1002/tcr.202000153).

ACS Style

Sasireka Velusamy; Anurag Roy; Senthilarasu Sundaram; Tapas Kumar Mallick. Cover Picture: A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide‐Based Adsorption Strategies for Textile Wastewater Treatment (Chem. Rec. 7/2021). The Chemical Record 2021, 21, 1569 -1569.

AMA Style

Sasireka Velusamy, Anurag Roy, Senthilarasu Sundaram, Tapas Kumar Mallick. Cover Picture: A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide‐Based Adsorption Strategies for Textile Wastewater Treatment (Chem. Rec. 7/2021). The Chemical Record. 2021; 21 (7):1569-1569.

Chicago/Turabian Style

Sasireka Velusamy; Anurag Roy; Senthilarasu Sundaram; Tapas Kumar Mallick. 2021. "Cover Picture: A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide‐Based Adsorption Strategies for Textile Wastewater Treatment (Chem. Rec. 7/2021)." The Chemical Record 21, no. 7: 1569-1569.

Research article
Published: 07 July 2021 in Energy Technology
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Herein, a novel cost-effective demand side management and peak power shaving are demonstrated by optimized scheduling of renewable energy source integrated grid-connected hybrid microgrid and vanadium redox flow battery (VRFB) storage. To promote the waste to energy for the rural and urban communities, the biogas energy source is integrated along with the combined solar photovoltaic (PV) and wind energy sources. As a long life and scalable battery storage solution, VRFB storage is adopted for peak shaving and microgrid performance reliability. Power generation from the renewable sources, VRFB charge–discharge, and grid power usage are scheduled considering two practical electricity tariff profiles, thus making the overall microgrid system operation cost-effective and efficient. The optimized cost of energy management is determined considering the operation and maintenance cost of energy source and battery storage, grid tariff profile, and power import and export. The performance of the overall control scheme is experimentally validated by a grid-connected hybrid microgrid consisting of 10 kWp solar PV, 1 kW wind turbine, 15 kVA biogas engine generator, and 1 kW 6 h VRFB storage. The proposed energy management scheme is scalable and a generalized one that claims to be suitable for large-scale renewable energy integrated power systems as well.

ACS Style

Ankur Bhattacharjee; Hiranmay Samanta; Aritra Ghosh; Tapas K Mallick; Samarjit Sengupta; Hiranmay Saha. Optimized Integration of Hybrid Renewable Sources with Long‐Life Battery Energy Storage in Microgrids for Peak Power Shaving and Demand Side Management under Different Tariff Scenario. Energy Technology 2021, 2100199 .

AMA Style

Ankur Bhattacharjee, Hiranmay Samanta, Aritra Ghosh, Tapas K Mallick, Samarjit Sengupta, Hiranmay Saha. Optimized Integration of Hybrid Renewable Sources with Long‐Life Battery Energy Storage in Microgrids for Peak Power Shaving and Demand Side Management under Different Tariff Scenario. Energy Technology. 2021; ():2100199.

Chicago/Turabian Style

Ankur Bhattacharjee; Hiranmay Samanta; Aritra Ghosh; Tapas K Mallick; Samarjit Sengupta; Hiranmay Saha. 2021. "Optimized Integration of Hybrid Renewable Sources with Long‐Life Battery Energy Storage in Microgrids for Peak Power Shaving and Demand Side Management under Different Tariff Scenario." Energy Technology , no. : 2100199.

Journal article
Published: 01 July 2021 in Journal of Hazardous Materials
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3D porous, thin sheet-like rGO aerogel was fabricated to explore its antimony (Sb) removal potential from wastewater. Langmuir isothermal and pseudo-second-order kinetic model best-suited the adsorption process. The maximum adsorption capacities were 168.59 and 206.72 mg/g for Sb (III and V) at pH 6.0 respectively. The thermodynamic parameters designated the process to be thermodynamically spontaneous, endothermic reaction, a result of dissociative chemisorption. The rGO aerogel bestowed good selectively among competing ions and reusability with 95% efficiency. rGO posed excellent practicability with Sb-spiked tap water and fixed-bed column experiments showing 97.6% of Sb (III) (3.6 μg/L) and 96.8% of Sb (V) (4.7 μg/L) removal from tap water and from fixed column bed experiments breakthrough volumes (BV) for the Sb (III) and Sb (V) ions were noted to be 540 BV and 925 BV respectively, until 5 ppb, which are below the requirement of MCL for Sb in drinking water (6 μg/L). XPS and DFT analyses explained adsorption mechanism and depicted a higher affinity of Sb (V) towards rGO surface than Sb (III).

ACS Style

Srijita Nundy; Aritra Ghosh; Rounak Nath; Ankan Paul; Asif Ali Tahir; Tapas K. Mallick. Reduced Graphene Oxide (rGO) Aerogel: Efficient adsorbent for the elimination of Antimony (III) and (V) from wastewater. Journal of Hazardous Materials 2021, 420, 126554 .

AMA Style

Srijita Nundy, Aritra Ghosh, Rounak Nath, Ankan Paul, Asif Ali Tahir, Tapas K. Mallick. Reduced Graphene Oxide (rGO) Aerogel: Efficient adsorbent for the elimination of Antimony (III) and (V) from wastewater. Journal of Hazardous Materials. 2021; 420 ():126554.

Chicago/Turabian Style

Srijita Nundy; Aritra Ghosh; Rounak Nath; Ankan Paul; Asif Ali Tahir; Tapas K. Mallick. 2021. "Reduced Graphene Oxide (rGO) Aerogel: Efficient adsorbent for the elimination of Antimony (III) and (V) from wastewater." Journal of Hazardous Materials 420, no. : 126554.

Journal article
Published: 14 June 2021 in Energies
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The use of solar energy in water heating applications, such as in solar-assisted heat pump systems, has great benefits, such as reductions in heat transfer losses, control over incident solar heat, and generation of environmentally benign water heat. In the present study, we performed parametric optimization based on an experimental model of a solar-assisted heat pump system for water heating (SAHPSWH) in the context of colder climatic regions receiving minimal solar radiation. Various parameters were investigated, such as the different glazing arrangements, the distances between fluid-circulating tubes, and the absorber sheet arrangement. The results showed that double glazing was more efficient than single glazing, with average COP values of 3.37 and 2.69, respectively, and with similar heat gain rates. When the evaporator tube was soldered below the absorber plate, the COP was 1.19 times greater than when the tube was soldered above the absorber plate. We also analyzed whether the collector efficiency factor F′ has an inverse relationship with the tube distance and a direct relationship with the absorber plate thickness. Through this experimental study, we verified that the SAHPSWH is reliable if designed judiciously. This promising energy-saving system is particularly suitable for areas abundant in solar radiation, such as in India, where the needs for space conditioning and water heating are constant.

ACS Style

Chandan Meena; Binju Raj; Lohit Saini; Nehul Agarwal; Aritra Ghosh. Performance Optimization of Solar-Assisted Heat Pump System for Water Heating Applications. Energies 2021, 14, 3534 .

AMA Style

Chandan Meena, Binju Raj, Lohit Saini, Nehul Agarwal, Aritra Ghosh. Performance Optimization of Solar-Assisted Heat Pump System for Water Heating Applications. Energies. 2021; 14 (12):3534.

Chicago/Turabian Style

Chandan Meena; Binju Raj; Lohit Saini; Nehul Agarwal; Aritra Ghosh. 2021. "Performance Optimization of Solar-Assisted Heat Pump System for Water Heating Applications." Energies 14, no. 12: 3534.

Journal article
Published: 13 June 2021 in Energies
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As an excellent heat spreader candidate, graphene attracts considerable interest concerning its application in concentrated photovoltaic (CPV) systems. The consequences of employing a graphene-coated neutral density (GCND) filter to mitigate concentrated light impact adequately. Hence, the temperature for a concentrated photovoltaic system is reported in this work. A systematic thermal characterisation study was carried out using three different thickness-based GCND filters. Interestingly, using the GCND filter, the focal spot temperature remained considerably lower than that of the incident temperature for a more extended period. The graphene coating orientation further influenced the temperature gradient behaviour of the focal spot and incident temperature. The thermal and electrical results depended on the GC samples’ thickness and emplacement, leading to dramatic differences in their respective photovoltaic performance. As a base substrate of the GCND filter, the low-iron glass suffered extreme thermal stress under concentrated solar irradiance. This thermal stress phenomenon on the GCND filter was further analysed. This study suggests that using GCND leads to lower temperature maintenance of the CPV focal point, which minimises the PV cell thermal stress. However, the GCND filter also experienced considerable thermal stress during the CPV experiment.

ACS Style

Mussad Alzahrani; Anurag Roy; Senthilarasu Sundaram; Tapas Mallick. Investigation of Thermal Stress Arising in a Graphene Neutral Density Filter for Concentrated Photovoltaic System. Energies 2021, 14, 3515 .

AMA Style

Mussad Alzahrani, Anurag Roy, Senthilarasu Sundaram, Tapas Mallick. Investigation of Thermal Stress Arising in a Graphene Neutral Density Filter for Concentrated Photovoltaic System. Energies. 2021; 14 (12):3515.

Chicago/Turabian Style

Mussad Alzahrani; Anurag Roy; Senthilarasu Sundaram; Tapas Mallick. 2021. "Investigation of Thermal Stress Arising in a Graphene Neutral Density Filter for Concentrated Photovoltaic System." Energies 14, no. 12: 3515.

Journal article
Published: 07 June 2021 in IEEE Access
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Existing power grids (PGs) and in-home energy management controllers do not offer its users the choice to maintain comfort and provide a bearable solution in terms of low cost and reduced carbon emission. This work is based on energy usage scheduling and management under electric utility and renewable energy sources i.e., solar energy (SE), controllable heat and power (CHP) and wind energy (WE) together. Efficient integration of renewable energy sources (RES) and battery storage system (BSS) have been suggested to solve the energy management problem, reduce the bill cost, peak-to-average ratio (PAR) and carbon emission. User’s electricity bill reduction have been achieved by proposed power usage scheduling method and integrating low cost RESs. PAR minimization have been achieved through shifting the demand in response to real time price from high-peak hours to low-peak hours. In this context, load scheduling and energy storage system management controller (LSEMC) is proposed which is based on heuristic algorithms i.e., genetic algorithm (GA), wind driven optimization (WDO), binary particle swarm optimization (BPSO), bacterial foraging optimization (BFO) and our suggested hybrid of GA, WDO and PSO (HGPDO) algorithm. The performance of the heuristic algorithms and proposed scheme is evaluated numerically. Results demonstrate that our proposed algorithm and the LSEMC reduces the electricity bill, PAR and CO 2 in Case 1, by 58.69%, 52.78% and 72.40%, in Case 2, by 47.55%, 45.02% and 92.90% and in Case 3, by 33.6%, 54.35% and 91.64%, respectively as compared with unscheduled. Moreover, the user comfort by our proposed HGPDO algorithm in terms of delay, thermal, air quality and visual improves by 35.55%, 16.66%, 91.64% and 45%, respectively.

ACS Style

Ateeq Ur Rehman; Zahid Wadud; Rajvikram Madurai Elavarasan; Ghulam Hafeez; Imran Khan; Zeeshan Shafiq; Hassan Haes Alhelou. An Optimal Power Usage Scheduling in Smart Grid Integrated With Renewable Energy Sources for Energy Management. IEEE Access 2021, 9, 84619 -84638.

AMA Style

Ateeq Ur Rehman, Zahid Wadud, Rajvikram Madurai Elavarasan, Ghulam Hafeez, Imran Khan, Zeeshan Shafiq, Hassan Haes Alhelou. An Optimal Power Usage Scheduling in Smart Grid Integrated With Renewable Energy Sources for Energy Management. IEEE Access. 2021; 9 ():84619-84638.

Chicago/Turabian Style

Ateeq Ur Rehman; Zahid Wadud; Rajvikram Madurai Elavarasan; Ghulam Hafeez; Imran Khan; Zeeshan Shafiq; Hassan Haes Alhelou. 2021. "An Optimal Power Usage Scheduling in Smart Grid Integrated With Renewable Energy Sources for Energy Management." IEEE Access 9, no. : 84619-84638.

Journal article
Published: 01 June 2021 in Sustainability
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Over 50% of the total energy consumed by buildings in a hot and dry climate goes toward the cooling regime during the harsh months. Non-residential buildings, especially houses of worship, need a tremendous amount of energy to create a comfortable environment for worshipers. Today, mosques are regarded as energy-hungry buildings, whereas in the past, they were designed according to sustainable vernacular architecture. This study was aimed at improving the energy performance of mosques in a hot and dry climate using bioclimatic principles and architectural elements. To achieve this aim, a process-based simulation approach was applied together with a generate and test technique on 86 scenarios based on 10 architectural elements, with various arithmetic transition rates organized in 9 successive steps. Starting from a simplified hypothetical model, the final model of the mosque design was arrived at based on a holistic bioclimatic vision using 10 architectural elements. The findings of this research were limited to a specific mosque size in a hot and dry climate, but the proposed holistic bioclimatic concept can be developed to take into account all mosque models in several harsh environments.

ACS Style

Atef Ahriz; Abdelhakim Mesloub; Khaled Elkhayat; Mohammed Alghaseb; Mohamed Abdelhafez; Aritra Ghosh. Development of a Mosque Design for a Hot, Dry Climate Based on a Holistic Bioclimatic Vision. Sustainability 2021, 13, 6254 .

AMA Style

Atef Ahriz, Abdelhakim Mesloub, Khaled Elkhayat, Mohammed Alghaseb, Mohamed Abdelhafez, Aritra Ghosh. Development of a Mosque Design for a Hot, Dry Climate Based on a Holistic Bioclimatic Vision. Sustainability. 2021; 13 (11):6254.

Chicago/Turabian Style

Atef Ahriz; Abdelhakim Mesloub; Khaled Elkhayat; Mohammed Alghaseb; Mohamed Abdelhafez; Aritra Ghosh. 2021. "Development of a Mosque Design for a Hot, Dry Climate Based on a Holistic Bioclimatic Vision." Sustainability 13, no. 11: 6254.

Review article
Published: 31 May 2021 in Journal of Cleaner Production
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The United Nation's Sustainable Development Goals (SDGs) want to have a peaceful world where human life will be in a safe, healthy, sustainable environment without any inequalities. However, the year 2020 experienced a global pandemic due to COVID-19. This COVID-19 created an adverse impact on human life, economic, environment, and energy and transport sector compared to the pre-COVID-19 scenario. These above-mentioned sectors are interrelated and thus lockdown strategy and stay at home rules to reduce the COVID-19 transmission had a drastic effect on them. With lockdown, all industry and transport sectors were closed, energy demand reduced greatly but the time shift of energy demand had a critical impact on grid and energy generation. Decreased energy demand caused a silver lining with an improved environment. However, drowned economy creating a negative impact on the human mind and financial condition, which at times led to life-ending decisions. Transport sector which faced a financial dip last year trying to coming out from the losses which are not feasible without government aid and a new customer-friendly policy. Sustainable transport and the electric vehicle should take high gear. While people are staying at home or using work from home scheme, building indoor environment must specially be taken care of as a compromised indoor environment affects and increases the risk of many diseases. Also, the energy-efficient building will play a key role to abate the enhanced building energy demand and more generation from renewable sources should be in priority. It is still too early to predict any forecast about the regain period of all those sectors but with vaccination now being introduced and implemented but still, it can be considered as an ongoing process as its final results are yet to be seen. As of now, COVID-19 still continue to grow in certain areas causing anxiety and destruction. With all these causes, effects, and restoration plans, still SDGs will be suffered in great order to attain their target by 2030 and collaborative support from all countries can only help in this time.

ACS Style

Srijita Nundy; Aritra Ghosh; Abdelhakim Mesloub; Ghazy Abdullah Albaqawy; Mohammed Mashary Alnaim. Impact of COVID-19 pandemic on socio-economic, energy-environment and transport sector globally and sustainable development goal (SDG). Journal of Cleaner Production 2021, 312, 127705 .

AMA Style

Srijita Nundy, Aritra Ghosh, Abdelhakim Mesloub, Ghazy Abdullah Albaqawy, Mohammed Mashary Alnaim. Impact of COVID-19 pandemic on socio-economic, energy-environment and transport sector globally and sustainable development goal (SDG). Journal of Cleaner Production. 2021; 312 ():127705.

Chicago/Turabian Style

Srijita Nundy; Aritra Ghosh; Abdelhakim Mesloub; Ghazy Abdullah Albaqawy; Mohammed Mashary Alnaim. 2021. "Impact of COVID-19 pandemic on socio-economic, energy-environment and transport sector globally and sustainable development goal (SDG)." Journal of Cleaner Production 312, no. : 127705.

Journal article
Published: 25 May 2021 in Energies
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In this study, a modified non-uniform adiabatic section in a Two-Phase Closed Thermosiphon (TPCT) is proposed where the uniform section was replaced by convergent and divergent (C-D) sections. The heat transfer analysis was performed on the modified TPCT and their findings were compared with standard TPCT. The deionized water (DI) in the proportion of 30 vol% is filled in both the TPCTs. Further, the heat transfer performance analysis was carried out for three different orientations, such as 0°, 45° and 90°, and heat input was varied from 50 to 250 W. The effect of these geometrical changes and inclination angles on the heat transfer performance of both the TPCT were evaluated to compare the thermal resistance, wall temperature variation and heat transfer coefficient. The non-dimensional numbers such as Weber (WE), Bond (BO), Condensation (CO) and Kutateladze (KU) were investigated based on heat fluxes for both TPCTs. By introducing the convergent-divergent section nearer to the condenser, the pressure before and after the C-D section was increased and decreased. This enhances the heat transfer in the evaporator slightly up to 2% and 1.4% at horizontal and 45° orientation, respectively, in Non-Uniformed Adiabatic Section (NUAS) TPCT when compared to Uniformed Adiabatic Section (UAS) TPCT. The thermal resistance of NUAS TPCT was reduced by up to 4.5% relative to UAS TPCT in horizontal and 45°. The results of the non-dimensional number also confirmed that NUAS TPCT provided better performance by enhancing 2% more pool boiling characteristics, interaction forces and condensate returns. Several factors such as gravity assistance, fluid accumulation, pressure drop and thermal resistance exert an influence on the heat transfer performance of the proposed NUAS TPCT at various orientation angles. However, different type of cross-sectional variations subjected to orientation changes may also get influenced by several other parameters that in turn affect the heat transfer performance distinctly.

ACS Style

Mohanraj Chandran; Rajvikram Madurai Elavarasan; Ramesh Neelakandan; Umashankar Subramaniam; Rishi Pugazhendhi. Influence of Geometrical Changes in an Adiabatic Portion on the Heat Transfer Performance of a Two-Phase Closed Thermosiphon System. Energies 2021, 14, 3070 .

AMA Style

Mohanraj Chandran, Rajvikram Madurai Elavarasan, Ramesh Neelakandan, Umashankar Subramaniam, Rishi Pugazhendhi. Influence of Geometrical Changes in an Adiabatic Portion on the Heat Transfer Performance of a Two-Phase Closed Thermosiphon System. Energies. 2021; 14 (11):3070.

Chicago/Turabian Style

Mohanraj Chandran; Rajvikram Madurai Elavarasan; Ramesh Neelakandan; Umashankar Subramaniam; Rishi Pugazhendhi. 2021. "Influence of Geometrical Changes in an Adiabatic Portion on the Heat Transfer Performance of a Two-Phase Closed Thermosiphon System." Energies 14, no. 11: 3070.

Research article
Published: 24 May 2021 in ACS Applied Materials & Interfaces
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Herein, we successfully synthesized high-quality Hf-ZnO thin films with various Hf contents (0, 3, 6, 9, 12, and 15 at. %), which showed both superhydrophilic (6% Hf-ZnO) and ultrahydrophobic (15% Hf-ZnO) wetting behavior. Different characterization methods were opted to recognize the structural (XRD, SEM, AFM) and defect properties (XPS) of the pristine and doped materials, to understand the mechanisms underlying the tuning of wetting behavior (contact angle). Hafnium doping plays a noteworthy role in tuning the morphology of the ZnO nanostructures, roughness of the material surface, generation of defects, Lewis acid–base interactions, and wettability properties. We achieved a superhydrophilic surface with 6% Hf-ZnO owing to a smooth surface, less basicity, and maximum concentration of oxygen vacancies, and also an ultrahydrophobic surface with 15% Hf-ZnO because of the rough surface, high basicity, and minimum concentration of oxygen vacancies. The as prepared Hf-ZnO samples showed stable performance (stability, wearability, weatherability, and antifouling) under real-life conditions marking them multifunctional and biosafe material to be effectively used in solar and building’s window. A wetting mechanism was established to relate the wetting behavior of the samples to oxygen vacancies (active sites for water dissociation: resulted due to charge mismatch of host cation (Zn2+) by the doped cation (Hf4+)), roughness (smooth surface (Wenzel) with minimum Rrms (0.588) portraying hydrophilic property and rough caltropic surface (Cassie–Baxter) with maximum Rrms (2.522) portraying hydrophobic property), basicity (H2O: Lewis Base; ZnO: Lewis acid; HfO2: Lewis base) and morphology (tube-like structure (0–6% Hf-ZnO) and caltrop-like structure (12–15% Hf-ZnO)).

ACS Style

Srijita Nundy; Aritra Ghosh; Asif Tahir; Tapas K. Mallick. Role of Hafnium Doping on Wetting Transition Tuning the Wettability Properties of ZnO and Doped Thin Films: Self-Cleaning Coating for Solar Application. ACS Applied Materials & Interfaces 2021, 13, 25540 -25552.

AMA Style

Srijita Nundy, Aritra Ghosh, Asif Tahir, Tapas K. Mallick. Role of Hafnium Doping on Wetting Transition Tuning the Wettability Properties of ZnO and Doped Thin Films: Self-Cleaning Coating for Solar Application. ACS Applied Materials & Interfaces. 2021; 13 (21):25540-25552.

Chicago/Turabian Style

Srijita Nundy; Aritra Ghosh; Asif Tahir; Tapas K. Mallick. 2021. "Role of Hafnium Doping on Wetting Transition Tuning the Wettability Properties of ZnO and Doped Thin Films: Self-Cleaning Coating for Solar Application." ACS Applied Materials & Interfaces 13, no. 21: 25540-25552.

Journal article
Published: 18 May 2021 in Energies
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In this work, temperature regulation and electrical output of a concentrated photovoltaic system coupled with a phase change material (CPVPCM) system is investigated and compared with a single sun crystalline photovoltaic (PV) system. A fully coupled thermal-optical-electrical model has been developed in-house to conduct the simulation studies for actual weather conditions of Doha (Qatar) and selected phase change materials (PCMs). The selected PCMs are lauric acid, RT47, S-series salt, STL47, ClimSelTM C48, RT54, RT60, RT62, and RT64. An optical concentration ratio of 20× is considered on a 15 mm wide crystalline silicon cell. The temperature evolution, thermal energy storage and electrical output of the CPVPCM system are obtained for 48-hour simulations with representative weather conditions for each month of a typical meteorological year (TMY). Results and overall thermal and electrical efficiency are compared for each PCM. In brief, the CPVPCM system with S-series salt performs better than all other PCM with an overall efficiency of 54.4%. Furthermore, this system consistently produces more power than a PV system with an equal footprint (1 m2) for each month of the TMY.

ACS Style

Jawad Sarwar; Muhammad Shad; Arshmah Hasnain; Farman Ali; Konstantinos Kakosimos; Aritra Ghosh. Performance Analysis and Comparison of a Concentrated Photovoltaic System with Different Phase Change Materials. Energies 2021, 14, 2911 .

AMA Style

Jawad Sarwar, Muhammad Shad, Arshmah Hasnain, Farman Ali, Konstantinos Kakosimos, Aritra Ghosh. Performance Analysis and Comparison of a Concentrated Photovoltaic System with Different Phase Change Materials. Energies. 2021; 14 (10):2911.

Chicago/Turabian Style

Jawad Sarwar; Muhammad Shad; Arshmah Hasnain; Farman Ali; Konstantinos Kakosimos; Aritra Ghosh. 2021. "Performance Analysis and Comparison of a Concentrated Photovoltaic System with Different Phase Change Materials." Energies 14, no. 10: 2911.

Journal article
Published: 15 May 2021 in Energies
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Soaring energy demand and the establishment of various trends in the energy market have paved the way for developing demand-side management (DSM) from the consumer side. This paper proposes a reinforced DSM (RDSM) approach that uses an enhanced binary gray wolf optimization algorithm (EBGWO) that benefits the consumer premises with load scheduling, and peak demand reduction. To date, DSM research has been carried out for residential, commercial and industrial loads, whereas DSM approaches for educational loads have been less studied. The institution load also consumes much utility energy during peak hours, making institutional consumers pay a high amount of cost for energy consumption during peak hours. The proposed objective is to reduce the total electricity cost and to improve the operating efficiency of the entire load profile at an educational institution. The proposed architecture integrates the solar PV (SPV) generation that supplies the user-comfort loads during peak operating hours. User comfort is determined with a metric termed the user comfort index (UCI). The novelty of the proposed work is highlighted by modeling a separate class of loads for temperature-controlled air conditioners (AC), supplying the user comfort loads from SPV generation and determining user comfort with percentage UCI. The improved transfer function used in the proposed EBGWO algorithm performs faster in optimizing nonlinear objective problems. The electricity price in the peak hours is high compared to the off-peak hours. The proposed EBGWO algorithm shift and schedules the loads from the peak hours to off-peak hours, and incorporating SPV in satisfying the user comfort loads aids in reducing the power consumption from the utility during peak hours. Thus, the proposed EBGWO algorithm greatly helps the consumer side decrease the peak-to-average ratio (PAR), improve user comfort significantly, reduce the peak demand, and save the institution’s electricity cost by USD 653.046.

ACS Style

Karthick Tamilarasu; Charles Sathiasamuel; Jeslin Joseph; Rajvikram Madurai Elavarasan; Lucian Mihet-Popa. Reinforced Demand Side Management for Educational Institution with Incorporation of User’s Comfort. Energies 2021, 14, 2855 .

AMA Style

Karthick Tamilarasu, Charles Sathiasamuel, Jeslin Joseph, Rajvikram Madurai Elavarasan, Lucian Mihet-Popa. Reinforced Demand Side Management for Educational Institution with Incorporation of User’s Comfort. Energies. 2021; 14 (10):2855.

Chicago/Turabian Style

Karthick Tamilarasu; Charles Sathiasamuel; Jeslin Joseph; Rajvikram Madurai Elavarasan; Lucian Mihet-Popa. 2021. "Reinforced Demand Side Management for Educational Institution with Incorporation of User’s Comfort." Energies 14, no. 10: 2855.

Journal article
Published: 10 May 2021 in IEEE Access
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At present, the disturbances like the voltage fluctuations, resulting from the grid’s complexities and unbalanced load conditions, create severe power quality concerns like total harmonic distortion (THD) and voltage unbalance factor (VUF) of the grid voltage. Though the custom power devices such as distribution-static compensators (D-STATCOMs) improve these power quality concerns, however, the accompanying controller plays the substantial role. Therefore, this paper proposes a fractional-order sliding mode control (FOSMC) for a D-STATCOM to compensate the low power distribution system by injecting/absorbing a specific extent of the reactive power under disturbances. FOSMC is a non-linear robust control in which the sliding surface is designed by using the Riemann-Liouville ( RL ) function and the chattering phenomenon is minimized by using the exponential reaching law. The stability of FOSMC is evidenced by employing the Lyapunov stability criteria. Moreover, the performance of the proposed FOSMC is further accessed while doing its parametric variations. The complete system is demonstrated with a model of 400V, 180kVA radial distributor along with D-STATCOM under two test scenarios in MATLAB/Simulink environment. The results of the proposed controller are compared with the fixed frequency sliding mode control (FFSMC) and conventional proportional-integral (PI) control. The results validate the superiority of the proposed controller in terms of rapid tracking, fast convergence, and overall damping with very low THD and VUF.

ACS Style

Toqeer Ahmed; Asad Waqar; Rajvikram Madurai Elavarasan; Junaid Imtiaz; Manoharan Premkumar; Umashankar Subramaniam. Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System. IEEE Access 2021, 9, 70337 -70352.

AMA Style

Toqeer Ahmed, Asad Waqar, Rajvikram Madurai Elavarasan, Junaid Imtiaz, Manoharan Premkumar, Umashankar Subramaniam. Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System. IEEE Access. 2021; 9 ():70337-70352.

Chicago/Turabian Style

Toqeer Ahmed; Asad Waqar; Rajvikram Madurai Elavarasan; Junaid Imtiaz; Manoharan Premkumar; Umashankar Subramaniam. 2021. "Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System." IEEE Access 9, no. : 70337-70352.

Journal article
Published: 10 May 2021 in IEEE Access
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Fossil fuel-based energy sources are the major contributors to greenhouse gas (GHG) emission and thus the use of renewable energy (RE) is becoming the best alternative to cater for the increasing energy demand in both developing and developed nations. Chipendeke is a rural community in Zimbabwe, in which electricity demand is partially served by the only micro-hydro plant and hence, load shedding is a regular practice to keep essential services running. This study explored suitable opportunity to identify a feasible system with different energy sources that can fullfil the current and projected future load demand of the community. A techno-economic feasibility study for a hybrid RE based power system (REPS) is examined considering various energy sources and cost functions. Six different system configurations have been designed with different sizing combinations to identify the most optimum solution for the locality considering techno-economic and environmental viability. The performance metrics considered to evaluate the best suitable model are; Net Present Cost (NPC), Cost of Energy (COE), Renewable Fraction (RF), excess energy and seasonal load variations. In-depth, sensitivity analyses have been performed to investigate the variations of the studied models with a little variation of input variables. Of the studied configurations, an off-grid hybrid Hydro/PV/DG/Battery system was found to be the most economically feasible compared to other configurations. This system had the lowest NPC and COE of $307,657 and $0.165/kWh respectively and the highest RF of 87.5%. The proposed hybrid system could apply to any other remote areas in the region and anywhere worldwide.

ACS Style

Gm Shafiullah; Tjedza Masola; Remember Samu; Rajvikram Madurai Elavarasan; Sharmina Begum; Umashankar Subramaniam; Mohd Fakhizan Romlie; Mohammad Chowdhury; M. T. Arif. Prospects of Hybrid Renewable Energy-Based Power System: A Case Study, Post Analysis of Chipendeke Micro-Hydro, Zimbabwe. IEEE Access 2021, 9, 73433 -73452.

AMA Style

Gm Shafiullah, Tjedza Masola, Remember Samu, Rajvikram Madurai Elavarasan, Sharmina Begum, Umashankar Subramaniam, Mohd Fakhizan Romlie, Mohammad Chowdhury, M. T. Arif. Prospects of Hybrid Renewable Energy-Based Power System: A Case Study, Post Analysis of Chipendeke Micro-Hydro, Zimbabwe. IEEE Access. 2021; 9 (99):73433-73452.

Chicago/Turabian Style

Gm Shafiullah; Tjedza Masola; Remember Samu; Rajvikram Madurai Elavarasan; Sharmina Begum; Umashankar Subramaniam; Mohd Fakhizan Romlie; Mohammad Chowdhury; M. T. Arif. 2021. "Prospects of Hybrid Renewable Energy-Based Power System: A Case Study, Post Analysis of Chipendeke Micro-Hydro, Zimbabwe." IEEE Access 9, no. 99: 73433-73452.