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One of the major challenges faced by human society is the freshwater crisis and shortage of conventional energy. Solar still is considered as one of the promising sources for the production of freshwater from saline water by desalination method. This paper represents the theoretical and experimental study of tubular solar still with and without fins. In this experimental study, the readings were recorded from 8:00 AM to 6:00 PM. The results of this experiment show that the efficiency of tubular solar still (TSS) with fins and without fins is found as 23.39 and 13.76% respectively. The rate of irreversibility from the basin of TSS with flat is higher than TSS with finned absorber and also the rate of irreversibility from water is significantly reduced by TSS with the finned absorber. The exergy analysis showed the maximum exergy efficiency of about 11.8% from the TSS with fins and about 10.6% from the TSS with a flat absorber.
Ravishankar Sathyamurthy; Abd Elnaby Kabeel; Ali Chamkha; Hemanth Arun Kumar; Hariprasath Venkateswaran; Athikesavan Muthu Manokar; Ramani Bharathwaaj; Sathiyaseelan Vasanthaseelan. Exergy and energy analysis of a tubular solar still with and without fins: a comparative theoretical and experimental approach. Environmental Science and Pollution Research 2021, 1 -10.
AMA StyleRavishankar Sathyamurthy, Abd Elnaby Kabeel, Ali Chamkha, Hemanth Arun Kumar, Hariprasath Venkateswaran, Athikesavan Muthu Manokar, Ramani Bharathwaaj, Sathiyaseelan Vasanthaseelan. Exergy and energy analysis of a tubular solar still with and without fins: a comparative theoretical and experimental approach. Environmental Science and Pollution Research. 2021; ():1-10.
Chicago/Turabian StyleRavishankar Sathyamurthy; Abd Elnaby Kabeel; Ali Chamkha; Hemanth Arun Kumar; Hariprasath Venkateswaran; Athikesavan Muthu Manokar; Ramani Bharathwaaj; Sathiyaseelan Vasanthaseelan. 2021. "Exergy and energy analysis of a tubular solar still with and without fins: a comparative theoretical and experimental approach." Environmental Science and Pollution Research , no. : 1-10.
The minimization of carbon dioxide (CO2) footprint is a significant problem for freshwater production. Freshwater produced by sunlight is a renewable energy that helps to reduce CO2 emissions. The aim of this research is to investigate the CO2 footprint of solar stills. The embodied energy analysis is used to determine the CO2 footprint, as well as CO2 mitigation, carbon credit energy generation factor, and life cycle conversion efficiency. The comparison is conducted on a single basin multi slope solar still. The multi slope is a square-shaped pyramid that acts as a transparent medium in the solar still. Two multi-slope solar stills were built for experimental purposes. In multi slope solar stills, two types of experiments are performed to measure the CO2 emission footprint and energy consumption: without shading and with shade on a glass plate. The findings of the analyses reveal that CO2 emissions footprint and embodied energy were lower in CPS than in SPS, while CO2 mitigation, carbon credit, energy production factor, and life cycle conversion efficiency were higher in CPS. In addition to the analysis, the footprint of CO2 emissions from single slope still shading (SSSS) and multi slope still shading (SSSS) were compared. Shading of multi slope is the best performer in terms of CO2 emission footprint when compared to SSSS.
S. Arun Kumar; P. Suresh Mohan Kumar; Ravishankar Sathyamurthy; A. Muthu Manokar. A Comparative Analysis of the Role of Carbon Dioxide in Multi Slope Solar Stills. International Journal of Ambient Energy 2021, 1 -24.
AMA StyleS. Arun Kumar, P. Suresh Mohan Kumar, Ravishankar Sathyamurthy, A. Muthu Manokar. A Comparative Analysis of the Role of Carbon Dioxide in Multi Slope Solar Stills. International Journal of Ambient Energy. 2021; ():1-24.
Chicago/Turabian StyleS. Arun Kumar; P. Suresh Mohan Kumar; Ravishankar Sathyamurthy; A. Muthu Manokar. 2021. "A Comparative Analysis of the Role of Carbon Dioxide in Multi Slope Solar Stills." International Journal of Ambient Energy , no. : 1-24.
For low temperature agricultural crop and meat drying, dryers utilizing the renewable energy source (solar energy) appear to be an efficient technique as it is ecofriendly, energy efficient, and available in free of cost. This work presents the experimental investigation on a solar food dryer equipped with external reflectors to enhance the rate of drying efficiency by removing the moisture content available in the anchovy fish. A comparison of conventional open solar drying is carried out to assess the parameters such as drying efficiency, moisture removal rate, and heat energy required for drying the anchovy fish using the modified solar dryer using the natural convection technique. From the experimental results it is observed that the relative humidity greatly influence the rate of drying. The average relative humidity during the experiments using open solar drying is found as 50–65% whereas, the using solar dryer the average relative humidity inside the chamber is found as 20–35%. The relative humidity of the fish using open solar drying is higher as compared to solar dryer drying as the drying products are kept in open atmosphere. The physical examination results on the dried products proved that using a modified solar dryers, the dried product is free from insects, and dust. Also, it is found that the loss of color from the product is a minimum while compared to conventional open solar drying. The results showed that the thermal efficiency of top tray (dryer 1) and bottom tray (dryer 2) is comparatively higher as compared to that of conventional open solar drying and found as 16.73 and 19.34 %, respectively. Results also showed that nearly 20.05% of the energy could be saved using the modified solar dryer as compared to the open solar drying technique.
Abd Elnaby Kabeel; Paul Durai Leon Dharmadurai; Sathiyaseelan Vasanthaseelan; Ravishankar Sathyamurthy; Bharathwaaj Ramani; Athikesavan Muthu Manokar; Ali Chamkha. Experimental studies on natural convection open and closed solar drying using external reflector. Environmental Science and Pollution Research 2021, 1 -10.
AMA StyleAbd Elnaby Kabeel, Paul Durai Leon Dharmadurai, Sathiyaseelan Vasanthaseelan, Ravishankar Sathyamurthy, Bharathwaaj Ramani, Athikesavan Muthu Manokar, Ali Chamkha. Experimental studies on natural convection open and closed solar drying using external reflector. Environmental Science and Pollution Research. 2021; ():1-10.
Chicago/Turabian StyleAbd Elnaby Kabeel; Paul Durai Leon Dharmadurai; Sathiyaseelan Vasanthaseelan; Ravishankar Sathyamurthy; Bharathwaaj Ramani; Athikesavan Muthu Manokar; Ali Chamkha. 2021. "Experimental studies on natural convection open and closed solar drying using external reflector." Environmental Science and Pollution Research , no. : 1-10.
The conventional solar still is limited to a daily yield of approximately 2–3.5 kg/m2/day. To increase the yield, this study investigates experimentally the combined effects of latent and sensible energy storage together with magnetization. Paraffin and novel high-thermal conductivity nanomaterial (graphite plate) were used as latent and sensible heat storage materials, respectively. There was an overall increase of 62% and 235% in the daytime and night-time yield, respectively, giving a total yield of 5.5 kg/m2/day compared to 3.4 kg/m2/day for a conventional still. Enviro-economic parameters like emissions, CO2 mitigation and carbon credit (CC) earned were also investigated. Energy matrices analysis and water quality checks were performed to estimate the energy-payback time, life cycle conversion efficiency (LCCE) and purity of desalinated water. The cost per liter of freshwater was found to be 3.7% cheaper than for a conventional still and 69% cheaper than bottled water in India. Over a 30 year period, 40.3 Tonnes of CO2 will be mitigated contributing a CC and LCCE of $402 and 0.52, respectively. The proposed modified still is recommended as a substitute for conventional stills and stills with simple energy storage.
D. Dsilva Winfred Rufuss; S. Arulvel; V. Anil Kumar; P.A. Davies; T. Arunkumar; Ravishankar Sathyamurthy; A.E. Kabeel; M. Anand Vishwanath; D. Sai Charan Reddy; Amandeep Dutta; Mayank Agrawal; Vedant Vilas Hiwarkar. Combined effects of composite thermal energy storage and magnetic field to enhance productivity in solar desalination. Renewable Energy 2021, 1 .
AMA StyleD. Dsilva Winfred Rufuss, S. Arulvel, V. Anil Kumar, P.A. Davies, T. Arunkumar, Ravishankar Sathyamurthy, A.E. Kabeel, M. Anand Vishwanath, D. Sai Charan Reddy, Amandeep Dutta, Mayank Agrawal, Vedant Vilas Hiwarkar. Combined effects of composite thermal energy storage and magnetic field to enhance productivity in solar desalination. Renewable Energy. 2021; ():1.
Chicago/Turabian StyleD. Dsilva Winfred Rufuss; S. Arulvel; V. Anil Kumar; P.A. Davies; T. Arunkumar; Ravishankar Sathyamurthy; A.E. Kabeel; M. Anand Vishwanath; D. Sai Charan Reddy; Amandeep Dutta; Mayank Agrawal; Vedant Vilas Hiwarkar. 2021. "Combined effects of composite thermal energy storage and magnetic field to enhance productivity in solar desalination." Renewable Energy , no. : 1.
Solar energy is considered the most influential source for various sustainable applications and its utilization can effectively convert brackish water into freshwater. The present work explores a novel method of augmenting the water productivity of the desalination unit using sea-water as the feed water through integrating a parabolic trough collector (to preheat the water supplied to the still basin) and activated carbon pellet (a highly porous energy storage material) to improve the rates of evaporation and water production. Experimental results revealed that the full-day water yield was augmented by 50.21% for the modified desalination unit, as compared to the conventional unit. 24-Hours water yield of modified solar still was increased by 85.2% compared to the conventional unit, owing to the synergetic effect of the parabolic trough and porous carbon. However, the integration of the parabolic trough collector significantly reduced the energy and exergy efficiency of the modified unit. The economic analysis estimated that the cost of the produced clean water was 0.010 US $ per liter for the modified unit, with a payback period of 66 days. Moreover, it was found that the modified desalination unit configuration can reduce CO2 emissions by 18.74 tons during its lifespan.
Amrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; I. Lynch; R. Saidur; A.K. Pandey; Swellam W. Sharshir; Zhenjun Ma; P. GaneshKumar; A.E. Kabeel. Sea-water desalination using a desalting unit integrated with a parabolic trough collector and activated carbon pellets as energy storage medium. Desalination 2021, 516, 115217 .
AMA StyleAmrit Kumar Thakur, Ravishankar Sathyamurthy, R. Velraj, I. Lynch, R. Saidur, A.K. Pandey, Swellam W. Sharshir, Zhenjun Ma, P. GaneshKumar, A.E. Kabeel. Sea-water desalination using a desalting unit integrated with a parabolic trough collector and activated carbon pellets as energy storage medium. Desalination. 2021; 516 ():115217.
Chicago/Turabian StyleAmrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; I. Lynch; R. Saidur; A.K. Pandey; Swellam W. Sharshir; Zhenjun Ma; P. GaneshKumar; A.E. Kabeel. 2021. "Sea-water desalination using a desalting unit integrated with a parabolic trough collector and activated carbon pellets as energy storage medium." Desalination 516, no. : 115217.
As the environment is humiliated at a disturbing rate, most governments have persistent calls following global energy policies for the utilization of biofuels. This paper essentially examines the portrayal investigations of fatty acid methyl esters and fatty acid pentyl esters obtained from palm oil. The characterization studies such as gas chromatogram, mass spectrometry, and Fourier transformed infrared spectrometry have been performed to study biodiesel’s chemical composition. This article likewise shows biodiesel’s physiochemical properties and concentrates on biodiesel blends’ hypothetical combustion properties with Al2O3 nanoparticles. The spectroscopic investigations demonstrate the contiguity of eight methyl esters and five pentyl esters prevalently of palmitic acid, oleic acid, octanoic acid, and stearic acid. The esters’ nearness was additionally affirmed by the FTIR range, where the peaks in the scope of 1700 cm−1 to 1600 cm−1 can be observed. Looking at the thermophysical properties of the mixes with that of the base diesel fuel yielded the compromising results by giving the comparative density to that of the diesel fuel. The palm oil biodiesel’s calorific value is, by all accounts, diminished by 10% when contrasted with diesel fuel. The addition of the nanoparticles up to 1 g has raised the calorific value most closely to the diesel’s value. Correspondingly, the theoretical burning examinations have demonstrated the limit of biodiesel to go about as an option compared to consistent diesel in the conventional DI–CI engine. This article talks about the combustion attributes of the blend containing 60% diesel, 20% fatty acid methyl ester (FAME), and 20% fatty acid pentyl ester (FAPE) with aluminium oxide (Al2O3) nanoparticles at two distinctive concentrations. This article primarily concerns the inquiry of combustion criterion, such as in-chamber pressure variation, rate of heat release, start of combustion, end of combustion, and ignition delay for considered fuel blends when contrasted with neat diesel fuel in a four-stroke, direct-injection, single-cylinder diesel engine. The results showed a decrease in in-cylinder pressure at all loads of engine operation for biodiesel blends when compared with neat diesel, irrespective of the nanoparticle concentration. Biodiesel blends at all nanoparticle concentrations showed an increase in ignition delay compared with diesel fuels at all engine operation loads. The performance results show a slight deterioration in the engine’s thermal efficiency using biodiesel blends, irrespective of the nanoparticle concentration. Additionally, the emissions show a considerable fall in trends for all loads in contrast with diesel fuel.
Muruganantham Ponnusamy; Bharathwaaj Ramani; Ravishankar Sathyamruthy. A Parametric Study on a Diesel Engine Fuelled Using Waste Cooking Oil Blended with Al2O3 Nanoparticle—Performance, Emission, and Combustion Characteristics. Sustainability 2021, 13, 7195 .
AMA StyleMuruganantham Ponnusamy, Bharathwaaj Ramani, Ravishankar Sathyamruthy. A Parametric Study on a Diesel Engine Fuelled Using Waste Cooking Oil Blended with Al2O3 Nanoparticle—Performance, Emission, and Combustion Characteristics. Sustainability. 2021; 13 (13):7195.
Chicago/Turabian StyleMuruganantham Ponnusamy; Bharathwaaj Ramani; Ravishankar Sathyamruthy. 2021. "A Parametric Study on a Diesel Engine Fuelled Using Waste Cooking Oil Blended with Al2O3 Nanoparticle—Performance, Emission, and Combustion Characteristics." Sustainability 13, no. 13: 7195.
The food industry is responsible for supplying the food demand of the ever-increasing global population. The food chain is one of the major contributors to greenhouse gas (GHG) emissions, and global food waste accounts for one-third of produced food. A solution to this problem is preserving crops, vegetables, and fruits with the help of an ancient method of sun drying. For drying agricultural and marine products, several types of dryers are also being developed. However, they require a large amount of energy supplied conventionally from pollutant energy sources. The environmental concerns and depletion risks of fossil fuels persuade researchers and developers to seek alternative solutions. To perform drying applications, sustainable solar power may be effective because it is highly accessible in most regions of the world. Greenhouse dryers (GHDs) are simple facilities that can provide large capacities for drying agricultural products. This study reviews the integration of GHDs with different solar technologies, including photovoltaic (PV), photovoltaic-thermal (PVT), and solar thermal collectors. Additionally, the integration of solar-assisted greenhouse dryers (SGHDs) with heat pumps and thermal energy storage (TES) units, as well as their hybrid configuration considering integration with other renewable energy sources, is investigated to improve their thermal performance. In this regard, this review presents and discusses the most recent advances in this field. Additionally, the economic analysis of SGHDs is presented as a key factor to make these sustainable facilities commercially available.
Shiva Gorjian; Behnam Hosseingholilou; Laxmikant Jathar; Haniyeh Samadi; Samiran Samanta; Atul Sagade; Karunesh Kant; Ravishankar Sathyamurthy. Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers. Sustainability 2021, 13, 7025 .
AMA StyleShiva Gorjian, Behnam Hosseingholilou, Laxmikant Jathar, Haniyeh Samadi, Samiran Samanta, Atul Sagade, Karunesh Kant, Ravishankar Sathyamurthy. Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers. Sustainability. 2021; 13 (13):7025.
Chicago/Turabian StyleShiva Gorjian; Behnam Hosseingholilou; Laxmikant Jathar; Haniyeh Samadi; Samiran Samanta; Atul Sagade; Karunesh Kant; Ravishankar Sathyamurthy. 2021. "Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers." Sustainability 13, no. 13: 7025.
Solar energy based desalination using solar still is considered as the low-cost efficient method for achieving clean water and the condensation behavior of the still glass cover plays an important role in augmenting the yield. This study aims to improve the water yield and thermal performance of solar still by changing the glass cover wettability using nano-silicon coating through spray technique. Transmission Electron Microscopy image revealed that silicon particles are interconnected and creates a nano-network like structure, whereas the surface area of 45.37 m2/g was exhibited by silicon, signifying its mesoporosity nature. The results showed that the silicon coating changed the condensation behavior of glass cover from film-wise to drop-wise, which augmented the water yield of coated glass solar still by 15.6% as compared to bare glass solar still. Coating durability and ageing analyses revealed marginal reduction in performance and water contact angle of coated solar still even after 100 working days, signifying the durability of coating. The evaporation efficiency of coated glass solar still was 3.6% higher than the bare glass still, owing to the higher heat transfer achieved through drop-wise condensation. Cost analysis of coated solar still revealed freshwater cost per liter of 0.013 US $ with pay-back time of 88 days. Moreover, the water quality analysis of the desalinated water demonstrated excellent quality that is highly suitable for drinking purpose. It is concluded that low-cost and prolonged durability of nano-silicon coating would be highly beneficial in augmenting the overall performance of the solar desalination unit.
Amrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; R. Saidur; Jang-Yeon Hwang. Augmented performance of solar desalination unit by utilization of nano-silicon coated glass cover for promoting drop-wise condensation. Desalination 2021, 515, 115191 .
AMA StyleAmrit Kumar Thakur, Ravishankar Sathyamurthy, R. Velraj, R. Saidur, Jang-Yeon Hwang. Augmented performance of solar desalination unit by utilization of nano-silicon coated glass cover for promoting drop-wise condensation. Desalination. 2021; 515 ():115191.
Chicago/Turabian StyleAmrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; R. Saidur; Jang-Yeon Hwang. 2021. "Augmented performance of solar desalination unit by utilization of nano-silicon coated glass cover for promoting drop-wise condensation." Desalination 515, no. : 115191.
Today, availability of clean water is hard as the residents are expanding and moving fast to achieve rapid urbanization as a result need for clean water has been raised. Solar stills are the solution to desalinate to obtain pure water. This paper represents the theoretical and experimental study of tubular solar still with and without fins. The reading was recorded from 8:00 AM to 6:00 PM. Efficiency of TSS with fins and without fins are 23.39% and 13.76% respectively. The rate of irreversibility from the basin of TSS with flat is higher than TSS with finned absorber. Similarly, the rate of irreversibility from water is significantly reduced using finned absorber. Also, the exergy efficiency of TSS with finned absorber is higher compared to TSS with flat absorber.
Dr. Ravishankar Sathyamurthy; Abd Elnaby Kabeel; Ali Chamkha; Hemanth Arun Kumar; Hariprasath Venkateswaran; Athikesavan Muthu Manokar; Ramani Bharathwaaj; Sathiyaseelan Vasanthaseelan. Exergy and Energy Analysis of a Tubular Solar Still with and without Fins: Comparative Theoretical and Experimental Approach. 2021, 1 .
AMA StyleDr. Ravishankar Sathyamurthy, Abd Elnaby Kabeel, Ali Chamkha, Hemanth Arun Kumar, Hariprasath Venkateswaran, Athikesavan Muthu Manokar, Ramani Bharathwaaj, Sathiyaseelan Vasanthaseelan. Exergy and Energy Analysis of a Tubular Solar Still with and without Fins: Comparative Theoretical and Experimental Approach. . 2021; ():1.
Chicago/Turabian StyleDr. Ravishankar Sathyamurthy; Abd Elnaby Kabeel; Ali Chamkha; Hemanth Arun Kumar; Hariprasath Venkateswaran; Athikesavan Muthu Manokar; Ramani Bharathwaaj; Sathiyaseelan Vasanthaseelan. 2021. "Exergy and Energy Analysis of a Tubular Solar Still with and without Fins: Comparative Theoretical and Experimental Approach." , no. : 1.
For the past decades, the flue gas emitted from Municipal Solid Waste Incinerator, Power Plant, and various industries are a permanent problem for the environment and has been affecting human life. Many flue gas filtration devices have been emerging out over the years. Although the Electrostatic Precipitator was an appropriate device due to high filtration efficiency, little pressure drop and energy efficiency, the cost and design of the Electrostatic Precipitator is a major restriction for manufacturers and end-users. With recent advances in technology,designing a cost-effective and less complex electrostatic precipitator has become mandatory. This article aims to design and develop a solar-powered cost-effective Needle-Plate typeelectrostatic precipitator which includes a static power converters and high voltage Transformer-Rectifier (T-R) set with an input voltage as 230V AC, output voltage as 80kV Direct Current (DC) and output current of40mA for mitigation of Flue gas emissions exhaust from Municipal Solid Waste Incinerator. The analysis of flue gas at ESP inlet and outlet has been performed using Ecotech stack sampler and flue gas analyzer. The obtained experimental results are validated with Emission standards provided in the Solid Waste Management rules book-India 2016.
Anandhraj Pannerselvam; Mohana Sundaram Kuppusamy; Jayaraman Shanmugapriyan; Vishnu Kumar Kaliappan; Dr. Ravishankar Sathyamurthy. Experimental Investigation of Removal of Flue Gas Emissions Exhaust from Municipal Solid Waste Incinerator using Photo-Voltaic based Electrostatic Precipitator. 2021, 1 .
AMA StyleAnandhraj Pannerselvam, Mohana Sundaram Kuppusamy, Jayaraman Shanmugapriyan, Vishnu Kumar Kaliappan, Dr. Ravishankar Sathyamurthy. Experimental Investigation of Removal of Flue Gas Emissions Exhaust from Municipal Solid Waste Incinerator using Photo-Voltaic based Electrostatic Precipitator. . 2021; ():1.
Chicago/Turabian StyleAnandhraj Pannerselvam; Mohana Sundaram Kuppusamy; Jayaraman Shanmugapriyan; Vishnu Kumar Kaliappan; Dr. Ravishankar Sathyamurthy. 2021. "Experimental Investigation of Removal of Flue Gas Emissions Exhaust from Municipal Solid Waste Incinerator using Photo-Voltaic based Electrostatic Precipitator." , no. : 1.
This work reports the use of tubular solar dryer for drying the Mexican mint (Plectranthus amboinicus) under various mass of leaves. Experiments were carried out in a tubular solar dryer under natural convection mode with direct solar heating. Parameters such as the temperature of dryer tray, relative humidity, and moisture content were recorded for 0.25, 0.5, 0.75 and 1 kg of P. amboinicus leaves placed in the dryer tray. Results showed that under an increased mass of P. amboinicus leaves in the tray the parameters such as dryer tray temperature are reduced, and the moisture content available with 0.75 kg of P. amboinicus leaves is higher as compared to 0.25 kg of P. amboinicus leaves. Also, it is found that the relative humidity inside the drying chamber is higher with increased mass of P. amboinicus leaves in the drying chamber.
Muruganantham P.; K. Kamalakannan; Ravishankar Sathyamurthy; K. Mohana Sundaram. Performance analysis of a tubular solar dryer for drying Mexican mint (Plectranthus amboinicus) — An experimental approach. Energy Reports 2021, 1 .
AMA StyleMuruganantham P., K. Kamalakannan, Ravishankar Sathyamurthy, K. Mohana Sundaram. Performance analysis of a tubular solar dryer for drying Mexican mint (Plectranthus amboinicus) — An experimental approach. Energy Reports. 2021; ():1.
Chicago/Turabian StyleMuruganantham P.; K. Kamalakannan; Ravishankar Sathyamurthy; K. Mohana Sundaram. 2021. "Performance analysis of a tubular solar dryer for drying Mexican mint (Plectranthus amboinicus) — An experimental approach." Energy Reports , no. : 1.
This work presents the experimental investigation on a solar food dryer equipped with external reflectors to enhance the rate of drying efficiency by removing the moisture content available in the anchovy fish. A comparison on conventional open solar drying is carried out to assess the parameters such as drying efficiency, moisture removal rate, and heat energy required for drying the anchovy fish using the modified solar dryer using natural convection technique. The physical examination results on the dried products proved that using modified solar dryer, the dried product are free from insects, dust. Also, it is found that the loss of colour from the product is minimum while compared to conventional open solar drying. The results showed that the thermal efficiency of dryer 1 and dryer 2 are comparatively higher as compared to that of conventional open solar drying and found as 16.73 and 19.34 % respectively.
Abd Elnaby Kabeel; Paul Durai Leon Dharmadurai; Sathiyaseelan Vasanthaseelan; Dr. Ravishankar Sathyamurthy; Bharathwaaj Ramani; Athikesavan Muthu Manokar; Ali Chamkha. Experimental Studies on Natural Convection Open and Closed Solar Drying Using External Reflector. 2021, 1 .
AMA StyleAbd Elnaby Kabeel, Paul Durai Leon Dharmadurai, Sathiyaseelan Vasanthaseelan, Dr. Ravishankar Sathyamurthy, Bharathwaaj Ramani, Athikesavan Muthu Manokar, Ali Chamkha. Experimental Studies on Natural Convection Open and Closed Solar Drying Using External Reflector. . 2021; ():1.
Chicago/Turabian StyleAbd Elnaby Kabeel; Paul Durai Leon Dharmadurai; Sathiyaseelan Vasanthaseelan; Dr. Ravishankar Sathyamurthy; Bharathwaaj Ramani; Athikesavan Muthu Manokar; Ali Chamkha. 2021. "Experimental Studies on Natural Convection Open and Closed Solar Drying Using External Reflector." , no. : 1.
The rapid growth in industrialization steadily increased the energy demand. The world’s population ultimately depends on petroleum as a major share of fuel for transportation and industrialization. Even though it is widely used in various sectors, its emission into the atmosphere creates serious problems in the form of acid rain, smog, etc. This present experimental investigation highlights the utilization of Vachellia nilotica seed oil methyl ester (VNSOME) synthesized from Vachellia nilotica seed oil (VNSO) fueled in a diesel engine to assess the emission and performance characteristics. VNSOME is produced using the alkaline catalyst (NaOH) transesterification technique. Four different fuel blends of biodiesel, namely, VNSOME5, VNSOME10, VNSOME15, and VNSOME20, were prepared and fueled in an unmodified engine. The engine brake thermal efficiency is lower, the brake-specific fuel consumption (BSFC) using VNSOME20 is higher, and the temperature of exhaust gas emitted after combustion is increased. The thermal efficiency is reduced by 7.34% with increased BSFC and exhaust gas temperature (EGT) of 9.3 and 14.28%, respectively, as compared to diesel fuel. Similarly, using an optimized biodiesel blend (VNSOME20), the emission emitted such as HC and CO is reduced by 19.14 and 22.2%, respectively. However, the engine fueled with the VNSOME20 biodiesel blend increased the level of CO2 and NOx emitted into the atmosphere when compared to diesel fuel.
Chandra Sekhar Sriharikota; Karuppasamy Karuppasamy; Vedaraman Nagarajan; Ravishankar Sathyamurthy; Bharathwaaj Ramani; Venkatesan Muthu; Sathiyamoorthy Karuppiah. Experimental Investigation of the Emission and Performance Characteristics of a DI Diesel Engine Fueled with the Vachellia nilotica Seed Oil Methyl Ester and Diesel Blends. ACS Omega 2021, 6, 14068 -14077.
AMA StyleChandra Sekhar Sriharikota, Karuppasamy Karuppasamy, Vedaraman Nagarajan, Ravishankar Sathyamurthy, Bharathwaaj Ramani, Venkatesan Muthu, Sathiyamoorthy Karuppiah. Experimental Investigation of the Emission and Performance Characteristics of a DI Diesel Engine Fueled with the Vachellia nilotica Seed Oil Methyl Ester and Diesel Blends. ACS Omega. 2021; 6 (22):14068-14077.
Chicago/Turabian StyleChandra Sekhar Sriharikota; Karuppasamy Karuppasamy; Vedaraman Nagarajan; Ravishankar Sathyamurthy; Bharathwaaj Ramani; Venkatesan Muthu; Sathiyamoorthy Karuppiah. 2021. "Experimental Investigation of the Emission and Performance Characteristics of a DI Diesel Engine Fueled with the Vachellia nilotica Seed Oil Methyl Ester and Diesel Blends." ACS Omega 6, no. 22: 14068-14077.
There are other issues related to humans, including respiratory problems and even death. The present study deals with the analysis of cerium oxide nanoparticles at different concentration in corn oil methyl ester diesel blend with an optimum concentration of biodiesel of 10% with diesel fuel. The concentration of CeO2 nanoparticles with the COB10 is varied in the range of 25, 50, and 75 ppm. Results showed that the physicochemical properties of the fuel improved with the addition of CeO2 nanoparticles. The brake thermal efficiency (BTE) of the engine is improved with an optimum concentration of 50 ppm CeO2 nanoparticle with the fuel, and it is found as 34.7% whereas, the formation of NOx is increased. The other emission from the engine, such as CO, UBHC decreased with increased oxygen content available in the fuel with nano additives. At maximum engine load, the UBHC is reduced by 11, 16.6, and 20.8% for COB10, COB10 + 25 ppm, COB10 + 50 ppm respectively. Also, the reduced ignition delay reduced the formation of CO and unburnt hydrocarbons. From the experimental study it is found that the optimized nanoparticle concentration with COB10 is 50 ppm, which costs around Rs. 8. Similarly, the total cost of biodiesel with cerium oxide nanoparticles is estimated as Rs. 76/kg.
Muruganantham P; Pandiyan P; Ravishankar Sathyamurthy. Analysis on performance and emission characteristics of corn oil methyl ester blended with diesel and cerium oxide nanoparticle. Case Studies in Thermal Engineering 2021, 26, 101077 .
AMA StyleMuruganantham P, Pandiyan P, Ravishankar Sathyamurthy. Analysis on performance and emission characteristics of corn oil methyl ester blended with diesel and cerium oxide nanoparticle. Case Studies in Thermal Engineering. 2021; 26 ():101077.
Chicago/Turabian StyleMuruganantham P; Pandiyan P; Ravishankar Sathyamurthy. 2021. "Analysis on performance and emission characteristics of corn oil methyl ester blended with diesel and cerium oxide nanoparticle." Case Studies in Thermal Engineering 26, no. : 101077.
People around the world are facing water scarcity, and the demand for freshwater is continuously increasing. The purification of water is the only way to satisfy the need for water. Purification can be done in many ways by purifying seawater or by storing rainwater and letting it to the ground. Different types of solar still are there, which are used to increase the output of water produced. Among others, inclined solar still (ISS) is an outstanding solution as it has a wide exterior area of water, having less depth of water to complement the regular potable water production, even the effectiveness of the inclined solar still. A lot of research had been done by increasing the surface area of water. The day to day collection of water from the ISS was found to be 1–8 kg m− 2. In this review, an analysis was made on the current status of different ISS designs to make advance modifications and research to improve the productivity of the ISS to satisfy the increasing demand for potable water. From this investigation, it is identified that active ISS and hybrid ISS are the most effective as compared to other ISS techniques.
Hemanth Arun Kumar; Hariprasath Venkateswaran; Abd Elnaby Kabeel; Ali Chamkha; Muthu Manokar Athikesavan; Ravishankar Sathyamurthy; Kamalakannan Kasi. Recent advancements, technologies, and developments in inclined solar still—a comprehensive review. Environmental Science and Pollution Research 2021, 1 -30.
AMA StyleHemanth Arun Kumar, Hariprasath Venkateswaran, Abd Elnaby Kabeel, Ali Chamkha, Muthu Manokar Athikesavan, Ravishankar Sathyamurthy, Kamalakannan Kasi. Recent advancements, technologies, and developments in inclined solar still—a comprehensive review. Environmental Science and Pollution Research. 2021; ():1-30.
Chicago/Turabian StyleHemanth Arun Kumar; Hariprasath Venkateswaran; Abd Elnaby Kabeel; Ali Chamkha; Muthu Manokar Athikesavan; Ravishankar Sathyamurthy; Kamalakannan Kasi. 2021. "Recent advancements, technologies, and developments in inclined solar still—a comprehensive review." Environmental Science and Pollution Research , no. : 1-30.
The work proposed in this paper focuses on providing an effective solution to shortage of power in rural areas with an effective technique implemented in an economically feasible way. The traditional Inverters used for either residential or commercial purposes consume electrical energy from the grid to fulfill the charging and discharging of the battery, which may lead to overloading. The shortcomings of the traditional inverters such as Non-Renewable nature of power sources, increased cost of manufacturing, and multi-stage conversion complexity, are considered by the researchers for improvement. As a result, an attempt has been made to provide a cost effective renewable energy system with single stage topology for AC power applications. Single stage power conversion with allowed shoot through state is used here to avoid additional components and reduce the switching losses. Unlike the traditional inverters, the Quasi Impedance Source Inverter that is brought forward can be utilized as a Standalone system or a capable backup at the time of power outages. Sinusoidal pulse width modulation (SPWM) is applied to attain reduced harmonics which are measured by observing the harmonic pattern in Total Harmonic Distortion (THD) curve. The lab results obtained through MATLAB simulation confirm the noteworthy diminution of THD level in the proposed system compared to the reported one. Usage of Photovoltaic (PV) Panel to tap energy with reduced stochastic fluctuations due to high filtering capacity of the proposed circuit, eliminating the need of additional filters, is the uniqueness of this technique.
Bolisetti Kavya Santhoshi; Kuppusamy Mohanasundaram; Vishnu Kumar Kaliappan; Ravishankar Sathyamurthy. Sinusoidal Pulse Width Modulation for a PhotoVoltaic Based Single Stage Inverter. 2021, 1 .
AMA StyleBolisetti Kavya Santhoshi, Kuppusamy Mohanasundaram, Vishnu Kumar Kaliappan, Ravishankar Sathyamurthy. Sinusoidal Pulse Width Modulation for a PhotoVoltaic Based Single Stage Inverter. . 2021; ():1.
Chicago/Turabian StyleBolisetti Kavya Santhoshi; Kuppusamy Mohanasundaram; Vishnu Kumar Kaliappan; Ravishankar Sathyamurthy. 2021. "Sinusoidal Pulse Width Modulation for a PhotoVoltaic Based Single Stage Inverter." , no. : 1.
In this work, experiments on mechanical properties such as tensile, flexural, effects, and stiffness testing are performed on natural fiber granulated composites (NFGC) manufactured using a hybrid additive manufacturing technique. The natural fiber granulated composites are prepared using the powdered form of sugarcane, jute, ramie, banana, pineapple fiber, and seashell powder with a volume fraction of 0.8. In the hybrid additive manufacturing technique, the fused deposited modeling (FDM) machine is modified by combining with the shape deposition modeling (SDM) to print the specimens layer by layer, and the influence of the number of layers on the mechanical properties is analyzed. The results concluded that increasing the number of layers from 6 to 12 improved the mechanical properties such as tensile strength, flexural strength, impact strength, and hardness values by 40.84, 50.04, 21.55, and 20.55%, respectively. Further, a novel technique can be utilized for developing the composites in replacement with conventional methods.
R. Anandkumar; S. Ramesh Babu; Ravishankar Sathyamurthy. Investigations on the Mechanical Properties of Natural Fiber Granulated Composite Using Hybrid Additive Manufacturing: A Novel Approach. Advances in Materials Science and Engineering 2021, 2021, 1 -12.
AMA StyleR. Anandkumar, S. Ramesh Babu, Ravishankar Sathyamurthy. Investigations on the Mechanical Properties of Natural Fiber Granulated Composite Using Hybrid Additive Manufacturing: A Novel Approach. Advances in Materials Science and Engineering. 2021; 2021 ():1-12.
Chicago/Turabian StyleR. Anandkumar; S. Ramesh Babu; Ravishankar Sathyamurthy. 2021. "Investigations on the Mechanical Properties of Natural Fiber Granulated Composite Using Hybrid Additive Manufacturing: A Novel Approach." Advances in Materials Science and Engineering 2021, no. : 1-12.
The SARS-CoV-2 virus has spread globally and has severely impacted public health and the economy. Hand hygiene, social distancing, and the usage of personal protective equipment are considered the most vital tools in controlling the primary transmission of the virus. Converging evidence indicated the presence of SARS-CoV-2 in wastewater and its persistence over several days, which may create secondary transmission of the virus via waterborne and wastewater pathways. Although, researchers have started focusing on this mode of virus transmission, limited knowledge and societal unawareness of the transmission through wastewater may lead to significant increases in the number of positive cases. To emphasize the severe issue of virus transmission through wastewater and create societal awareness, we present a state of the art critical review on transmission of SARS-CoV-2 in wastewater and the potential remedial strategies to effectively control the viral spread and safeguard society. For low-income countries with high population densities, it is suggested to identify the virus in large scale municipal wastewater plants before following up with one-to-one testing for effective control of the secondary transmission. Ultrafiltration is an effective method for wastewater treatment and usually more than 4 logs of virus removal are achieved while safeguarding good protein permeability. Decentralized wastewater treatment facilities using solar-assisted disinfestation methods are most economical and can be effectively used in hospitals, isolation wards, and medical centers for reducing the risk of transmission from high local concentration sites, especially in tropical countries with abundant solar energy. Disinfection with chlorine, sodium hypochlorite, benzalkonium chloride, and peracetic acid have shown potential in terms of virucidal properties. Biological wastewater treatment using micro-algae will be highly effective in removal of virus and can be incorporated into membrane bio-reaction to achieve excellent virus removal rate. Though promising results have been shown by initial research for inactivation of SARS-CoV-2 in wastewater using physical, chemical and biological based treatment methods, there is a pressing need for extensive investigation of COVID-19 specific disinfectants with appropriate concentrations, their environmental implications, and regular monitoring of transmission. Effective wastewater treatment methods with high virus removal capacity and low treatment costs should be selected to control the virus spread and safeguard society from this deadly virus.
Amrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; I. Lynch; R. Saidur; A.K. Pandey; Swellam W. Sharshir; Abd Elnaby Kabeel; Jang-Yeon Hwang; P. GaneshKumar. Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic. Journal of Environmental Management 2021, 290, 112668 -112668.
AMA StyleAmrit Kumar Thakur, Ravishankar Sathyamurthy, R. Velraj, I. Lynch, R. Saidur, A.K. Pandey, Swellam W. Sharshir, Abd Elnaby Kabeel, Jang-Yeon Hwang, P. GaneshKumar. Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic. Journal of Environmental Management. 2021; 290 ():112668-112668.
Chicago/Turabian StyleAmrit Kumar Thakur; Ravishankar Sathyamurthy; R. Velraj; I. Lynch; R. Saidur; A.K. Pandey; Swellam W. Sharshir; Abd Elnaby Kabeel; Jang-Yeon Hwang; P. GaneshKumar. 2021. "Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic." Journal of Environmental Management 290, no. : 112668-112668.
The disposal of used photovoltaic panels is increasing day by day around the world. Therefore, an efficient method for recycling disposed photovoltaic panel is required to decrease environmental pollution. This work is aimed at efficiently recovering pure silicon and other materials such as aluminium, silver, and lead from disposed solar cells using chemical treatments. Earlier, the pure silicon was recovered by treating the solar cells with hydrofluoric acid or mixture of hydrofluoric acid and other chemicals. The usage of hydrofluoric acid is eliminated in the present work as it is highly toxic and corrosive chemical. The pure silicon (99.9984%) has been recovered by sequentially treating with three different chemicals. Aluminium, silver, and lead are also recovered as aluminium hydroxide, silver chloride, and lead oxide, respectively.
Lineesh Punathil; K. Mohanasundaram; K. S. Tamilselavan; Ravishankar Sathyamurthy; Ali J. Chamkha. Recovery of Pure Silicon and Other Materials from Disposed Solar Cells. International Journal of Photoenergy 2021, 2021, 1 -4.
AMA StyleLineesh Punathil, K. Mohanasundaram, K. S. Tamilselavan, Ravishankar Sathyamurthy, Ali J. Chamkha. Recovery of Pure Silicon and Other Materials from Disposed Solar Cells. International Journal of Photoenergy. 2021; 2021 ():1-4.
Chicago/Turabian StyleLineesh Punathil; K. Mohanasundaram; K. S. Tamilselavan; Ravishankar Sathyamurthy; Ali J. Chamkha. 2021. "Recovery of Pure Silicon and Other Materials from Disposed Solar Cells." International Journal of Photoenergy 2021, no. : 1-4.
The present investigation reports the soxhlet assisted solvent extraction technique to derive the oil from seeds of the rain tree. The optimization of the factors affecting the extraction process has been carried out by Response Surface Methodology (RSM) technique, and a Box-Behnken Design (BBD) consisting of three process variables has been developed to optimize the yield of oil. Using the RSM technique, the predicted optimum oil yield of 11.15% at an optimized condition of powder weight of 20 g, volume of solvent of 380 mL, and extraction time of 6 h. The physiochemical properties of the oil showed liquid greenish-yellow with 0.88, 1.473 of specific gravity and refractive index, respectively. Similarly, the moisture content, free fatty acid, acid value, saponification value, iodine value, and peroxide value were found to be 0.16%, 13.615, 27.23, 187.1 mg KOH per g oil, 65.8 g I2 per 100 g, and 4.02 meq O2 per kg, respectively. From the obtained results, it was found that the extracted oil could be used for various applications.
S. Chandra Sekhar; K. Karuppasamy; M. Vimal Kumar; D. Bijulal; N Vedaraman; Ravishankar Sathyamurthy. Rain tree (Samanea saman) seed oil: Solvent extraction, optimization and characterization. Journal of Bioresources and Bioproducts 2021, 1 .
AMA StyleS. Chandra Sekhar, K. Karuppasamy, M. Vimal Kumar, D. Bijulal, N Vedaraman, Ravishankar Sathyamurthy. Rain tree (Samanea saman) seed oil: Solvent extraction, optimization and characterization. Journal of Bioresources and Bioproducts. 2021; ():1.
Chicago/Turabian StyleS. Chandra Sekhar; K. Karuppasamy; M. Vimal Kumar; D. Bijulal; N Vedaraman; Ravishankar Sathyamurthy. 2021. "Rain tree (Samanea saman) seed oil: Solvent extraction, optimization and characterization." Journal of Bioresources and Bioproducts , no. : 1.