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Advancement in electricity is the key ingredient that can actively take part in alleviating poverty and drastically improve the socio-economic status of the people of Bangladesh. The incorporation of renewable energy sources would help the country meet the energy requirement as well as contribute positively towards building a sustainable planet. The paper has extensively discussed the potential aspects of renewable energy resources in Bangladesh and how the Internet of Things can facilitate the implementation of intermittent sources. The regulatory and socio-economic aspects of the renewable energy industry have been explored and sustainable solutions will be discussed to fast-track the process of integrating various renewable energy sources in the power grid to meet the energy demand. The paper discusses the challenges associated with the RE integration in Bangladesh’s power mix and tries to mitigate it through the IoT. Besides that, an RE map for Bangladesh along with prospective power network has also been discussed in this work.
Abdul Hasib Siddique; Sumaiya Tasnim; Fahim Shahriyar; Mehedi Hasan; Khalid Rashid. Renewable Energy Sector in Bangladesh: The Current Scenario, Challenges and the Role of IoT in Building a Smart Distribution Grid. Energies 2021, 14, 5083 .
AMA StyleAbdul Hasib Siddique, Sumaiya Tasnim, Fahim Shahriyar, Mehedi Hasan, Khalid Rashid. Renewable Energy Sector in Bangladesh: The Current Scenario, Challenges and the Role of IoT in Building a Smart Distribution Grid. Energies. 2021; 14 (16):5083.
Chicago/Turabian StyleAbdul Hasib Siddique; Sumaiya Tasnim; Fahim Shahriyar; Mehedi Hasan; Khalid Rashid. 2021. "Renewable Energy Sector in Bangladesh: The Current Scenario, Challenges and the Role of IoT in Building a Smart Distribution Grid." Energies 14, no. 16: 5083.
The addition of thermal energy storage and natural gas as a complementary energy source improves the flexibility, reliability, and value of concentrated solar power (CSP) plants. Nevertheless, due to the transient nature of solar energy, transitions from solar-only mode and natural-gas mode to hybrid solar-natural gas mode is quite challenging, especially when the plant is equipped with thermal storage. Thus, it is important to develop proper dynamic modeling and control schemes to accurately simulate such transitions. The objective of this study is to address this subject by demonstrating a dynamic model with reliable control schemes for a highly integrated hybrid parabolic trough-natural gas plant equipped with thermal energy storage. The specific goal is to study the dynamics of adding thermal storage to the hybrid plant. It is found that the developed control schemes assist smooth transitions between different operational modes and effective utilization of thermal storage and natural gas to maintain steady power production and steam mass flow rates under different solar conditions. The results demonstrate that the integration of storage regulates power production by solar energy and natural gas during the day time. It also enables an increase in the solar fraction of the hybrid plant while it causes a small decrease in thermodynamic efficiency. The analysis shows that the hybrid plant with the storage has a substantially lower specific CO2 emission (0.320 tonne/MWh) than single natural gas plant (0.413 tonne/MWh) although it has a higher levelized cost of electricity ($86.32/MWh against $74.92/MWh). The hybrid plant with storage demonstrates a promising potential for reliable and clean production of electricity, although research and development should be conducted to lower its cost.
Khalid Rashid; Kasra Mohammadi; Kody Powell. Dynamic simulation and techno-economic analysis of a concentrated solar power (CSP) plant hybridized with both thermal energy storage and natural gas. Journal of Cleaner Production 2019, 248, 119193 .
AMA StyleKhalid Rashid, Kasra Mohammadi, Kody Powell. Dynamic simulation and techno-economic analysis of a concentrated solar power (CSP) plant hybridized with both thermal energy storage and natural gas. Journal of Cleaner Production. 2019; 248 ():119193.
Chicago/Turabian StyleKhalid Rashid; Kasra Mohammadi; Kody Powell. 2019. "Dynamic simulation and techno-economic analysis of a concentrated solar power (CSP) plant hybridized with both thermal energy storage and natural gas." Journal of Cleaner Production 248, no. : 119193.
A method is presented to enhance solar penetration of a hybrid solar-combined cycle power plant integrated with a packed-bed thermal energy storage system. The hybrid plant is modeled using Simulink and employs systems-level automation. Feedback control regulates net power, collector temperature, and turbine firing temperature. A base-case plant is presented, and plant design is systematically modified to improve solar energy utilization. A novel recycling configuration enables robust control of collector temperature and net power during times of high solar activity. Recycling allows for improved solar energy utilization and a yearly solar fraction over 30%, while maintaining power control. During significant solar activity, excessive collector temperature and power setpoint mismatch are still observed with the proposed recycling configuration. A storage bypass is integrated with recycling, to lower storage charging rate. This operation results in diverting only a fraction of air flow to storage, which lowers the storage charging rate and improves solar energy utilization. Recycling with a storage bypass can handle larger solar inputs and a solar fraction over 70% occurs when following a drastic peaking power load. The novel plant configuration is estimated to reduce levelized cost of the plant by over 4% compared to the base-case plant.
Kevin Ellingwood; Seyed Mostafa Safdarnejad; Khalid Rashid; Kody Powell. Leveraging Energy Storage in a Solar-Tower and Combined Cycle Hybrid Power Plant. Energies 2018, 12, 40 .
AMA StyleKevin Ellingwood, Seyed Mostafa Safdarnejad, Khalid Rashid, Kody Powell. Leveraging Energy Storage in a Solar-Tower and Combined Cycle Hybrid Power Plant. Energies. 2018; 12 (1):40.
Chicago/Turabian StyleKevin Ellingwood; Seyed Mostafa Safdarnejad; Khalid Rashid; Kody Powell. 2018. "Leveraging Energy Storage in a Solar-Tower and Combined Cycle Hybrid Power Plant." Energies 12, no. 1: 40.
Solar power is considered among the leading renewable energy technologies. Abundant supply, flexibility of installation, and decreasing cost makes it an interesting renewable energy resource. However, there are challenges associated with the reliability of solar power due to its intermittent nature. This work demonstrates the synergies that exist in integrated hybrid systems, where a dispatchable fuel is used in conjunction with concentrated solar power. In this simulation-based study, a parabolic trough solar concentrator is used to collect solar energy. The heat collected from the solar field is used to generate steam in a Rankine cycle. The system also utilizes natural gas combustion in the steam generator to provide supplemental steam when the solar intensity is reduced due to cloud cover or at night. Natural gas is also used for superheating the steam, which allows the system to produce higher temperatures and achieve increased thermodynamic cycle efficiencies. This flexible design produces 100 MW at nominal conditions, while it is capable of producing a maximum of 140 MW when sufficient solar energy is available. The novel contributions of this work include a complete, systems-level, dynamic model of a hybrid solar plant. The model is complete with a control system that smoothly transitions the plant from pure natural gas mode at night to solar hybrid mode during the day. It evaluates innovative design features such as flexible fuel operation, steam superheating to boost efficiency, and preheating by solar or waste heat. Furthermore, this work demonstrates that by hybridizing a solar system with a dispatchable energy source, both the reliability and efficiency of the solar power production are increased. The annual solar-to-electric efficiency increases from 15.2% to 26.13% with hybridization, which indicates that utilization of the solar energy is effectively increased.
Khalid Rashid; Seyed Mostafa Safdarnejad; Kody M. Powell. Dynamic simulation, control, and performance evaluation of a synergistic solar and natural gas hybrid power plant. Energy Conversion and Management 2018, 179, 270 -285.
AMA StyleKhalid Rashid, Seyed Mostafa Safdarnejad, Kody M. Powell. Dynamic simulation, control, and performance evaluation of a synergistic solar and natural gas hybrid power plant. Energy Conversion and Management. 2018; 179 ():270-285.
Chicago/Turabian StyleKhalid Rashid; Seyed Mostafa Safdarnejad; Kody M. Powell. 2018. "Dynamic simulation, control, and performance evaluation of a synergistic solar and natural gas hybrid power plant." Energy Conversion and Management 179, no. : 270-285.
Khalid Rashid; Moataz N. Sheha; Kody M. Powell. Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization. 2018 Annual American Control Conference (ACC) 2018, 1 .
AMA StyleKhalid Rashid, Moataz N. Sheha, Kody M. Powell. Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization. 2018 Annual American Control Conference (ACC). 2018; ():1.
Chicago/Turabian StyleKhalid Rashid; Moataz N. Sheha; Kody M. Powell. 2018. "Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization." 2018 Annual American Control Conference (ACC) , no. : 1.
Moataz N. Sheha; Khalid Rashid; Kody M. Powell. Dynamic Real-Time Optimization of Air Conditioning Systems in Residential Houses under Different Electricity Pricing Structures. 2018 Annual American Control Conference (ACC) 2018, 1 .
AMA StyleMoataz N. Sheha, Khalid Rashid, Kody M. Powell. Dynamic Real-Time Optimization of Air Conditioning Systems in Residential Houses under Different Electricity Pricing Structures. 2018 Annual American Control Conference (ACC). 2018; ():1.
Chicago/Turabian StyleMoataz N. Sheha; Khalid Rashid; Kody M. Powell. 2018. "Dynamic Real-Time Optimization of Air Conditioning Systems in Residential Houses under Different Electricity Pricing Structures." 2018 Annual American Control Conference (ACC) , no. : 1.
Kody M. Powell; Khalid Rashid; Kevin Ellingwood; Jake Tuttle; Brian Iverson. Hybrid concentrated solar thermal power systems: A review. Renewable and Sustainable Energy Reviews 2017, 80, 215 -237.
AMA StyleKody M. Powell, Khalid Rashid, Kevin Ellingwood, Jake Tuttle, Brian Iverson. Hybrid concentrated solar thermal power systems: A review. Renewable and Sustainable Energy Reviews. 2017; 80 ():215-237.
Chicago/Turabian StyleKody M. Powell; Khalid Rashid; Kevin Ellingwood; Jake Tuttle; Brian Iverson. 2017. "Hybrid concentrated solar thermal power systems: A review." Renewable and Sustainable Energy Reviews 80, no. : 215-237.