Article
Chemistry, Physical
Arnaud C. M. Griffond, M. Veronica Sofianos, Drew A. Sheppard, Terry D. Humphries, Anna-Lisa Sargent, Martin Dornheim, Kondo-Francois Aguey-Zinsou, Craig E. Buckley
Summary: The thermal energy storage properties of calcium hydride (CaH2) destabilized with silicon (Si) or CaxSiy compounds at various molar ratios were studied, revealing multi-step thermal decomposition reactions and identifying the most suitable compounds for concentrated solar power plants. The practical enthalpy of decomposition for Ca5Si3 was determined through pressure composition isothermal measurements, showing a discrepancy with the calculated value due to the formation of unwanted phases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Lucas Poupin, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Metal hydrides are effective energy storage materials for thermal battery applications, with Magnesium iron hydride (Mg2FeH6) showing promising reversible hydrogenation reactions for thermal energy storage. The automated thermal battery prototype demonstrated excellent cyclic energy storage reversibility and achieved a maximum energy capacity of 1650 kJ, which is 87% of the theoretical value. Operating conditions such as ideal temperature, flow rate of heat transfer fluid, and hydrogen pressures were optimized to enhance the performance of the system.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Terry D. Humphries, Mark Paskevicius, Ali Alamri, Craig E. Buckley
Summary: Thermal batteries are efficient for storing renewable energies, utilizing reversible thermochemical reactions to drive a heat engine. Studies on the SrH2-2Al system have shown promising properties for high efficiency operation, which could enhance technological applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Huy Quoc Nguyen, Monjur Mourshed, Biddyut Paul, Bahman Shabani
Summary: This paper presents an experimental study on the thermal management of a metal hydride hydrogen canister using a phase change material (PCM). The results show that employing PCM improves the utilization of hydrogen and addresses the issue of decreasing hydrogen charging rate.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Thermodynamics
K. Malleswararao, Pradip Dutta, Murthy S. Srinivasa
Summary: Metal hydrides have attracted attention for various thermal applications due to their wide range of operating temperatures and pressures. This paper provides a comprehensive review of theoretical and experimental studies on the thermal applications of metal hydrides, such as refrigeration, heat transformers, heat pumps, and thermal energy storage.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Manoj S. Choudhari, Vinod Kumar Sharma
Summary: The increasing energy demand highlights the importance of energy conservation and utilization of renewable sources. Thermochemical energy storage system is a useful technology for energy storage during the availability of renewable energy sources. The MH-TES shows higher energy storage density and COP, with potential for optimization through operating temperature adjustment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Gamze Atalmis, Mehmet Demiralp, Nebi Yelegen, Yuksel Kaplan
Summary: This study investigates the process parameters that affect the improvement of hydrogen storage material properties. The thermal conductivity of the storage materials has been improved to accelerate the hydrogen charge/discharge processes and obtain the required hydrogen at desired flow rates in a short time. The experimental results show that coating the storage material with copper increases heat transfer, reduces the hydrogen charging time, and improves stable discharge time in the metal hydride reactor.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
K. Malleswararao, N. Aswin, S. Srinivasa Murthy, Pradip Dutta
Summary: This paper investigates the operation of metal hydride based thermal energy storage systems in long-term and buffer modes. By simulating multiple operating cycles and considering the variations in porosity and density of the hydrogen storage bed, the effects of heat source temperature and hydrogen storage bed temperature on the thermal performance of the system are studied.
Article
Thermodynamics
Sunku Prasad, P. Muthukumar
Summary: This study conducted experiments on an annular porous metal hydride reactor equipped with radial fins. The absorption and desorption characteristics were studied under different pressure and temperature conditions. The energy efficiency of the developed hydrogen storage device was evaluated, and the effect of pre-sensible heating on desorption performance was analyzed. The results showed that the developed system had an energy efficiency of 76.76% and La0.7Ce0.1Ca0.3Ni5 exhibited higher storage capacity.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
K. Malleswararao, N. Aswin, S. Srinivasa Murthy, Pradip Dutta
Summary: This study confirms that metal hydride based thermal batteries consisting of suitable hydride pairs can be effectively used for harnessing and storing waste heat in the medium temperature levels of about 150 degrees C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Uday Raj Singh, Satyasekhar Bhogilla
Summary: This study presents a comparative analysis of the performance of metal hydride hydrogen storage units using LaNi5 and compacts of LaNi5 incorporated with expanded natural graphite (ENG). The research highlights the need to enhance thermal conductivity to improve heat transfer during hydrogen absorption. The results demonstrate that the use of LaNi5 and ENG compacts significantly improves heat transfer, hydrogen storage capacity, and reduces absorption time.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
K. Malleswararao, N. Aswin, Pramod Kumar, Pradip Dutta, S. Srinivasa Murthy
Summary: This paper investigates the application of metal hydrides in thermal energy storage and hydrogen storage. A low temperature hydride, La0.75Ce0.25Ni5, is experimentally studied for its hydrogen storage capacity and thermal energy storage capacity. The heat and mass transfer characteristics of a novel reactor design are also investigated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
K. Malleswararao, Pramod Kumar, Pradip Dutta, S. Srinivasa Murthy
Summary: This study investigates the hydrogen storage characteristics and thermal storage performance of LaNi4.25Al0.75 alloy in the temperature range of 150°C-200°C. The alloy exhibits a hydrogen storage capacity of 1.20 wt% and can store a total thermal energy of 285.7 kJ.kg-1 and deliver heat at an average rate of 287.5 W.kg-1 with an efficiency of 64.1%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Sumeet Kumar Dubey, K. Ravi Kumar
Summary: This study provides a detailed analysis of the energy absorption and desorption of a metal hydride suitable for high temperature in a dual bed metal hydride-based thermal energy storage system. The effects of the number of heat transfer fluid tubes and different aspect ratio geometry on the energy absorption characteristics and heat transfer phenomenon are studied. The outcomes of this study are crucial for the design of metal hydride-based thermochemical energy storage systems for process heating and power generation.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Mykhaylo V. Lototskyy, Moegamat Wafeeq Davids, Ivan Tolj, Yevgeniy V. Klochko, Bhogilla Satya Sekhar, Stanford Chidziva, Fahmida Smith, Dana Swanepoel, Bruno G. Pollet
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2015)
Article
Chemistry, Physical
Akihiro Nakano, Hiroshi Ito, Satya Sekhar Bhogilla, Theodore Motyka, Claudio Corgnale, Scott Greenway, Bjorn C. Hauback
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2015)
Article
Energy & Fuels
Satya Sekhar Bhogilla, Hiroshi Ito, Atsushi Kato, Akihiro Nakano
Article
Chemistry, Physical
Satya Sekhar Bhogilla, Hiroshi Ito, Atsushi Kato, Akihiro Nakano
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Chemistry, Physical
Satya Sekhar Bhogilla, Hiroshi Ito, Takehiko Segawa, Atsushi Kato, Akihiro Nakano
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Thermodynamics
B. Satya Sekhar, P. Muthukumar
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2016)
Article
Chemistry, Physical
Satya Sekhar Bhogilla, Hakeem Niyas
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Sai A. Kaushik, Satya Sekhar Bhogilla, P. Muthukumar
Summary: The article discusses the impact of increased fossil fuel usage on the environment and the need for the development of new energy sources, introduces the concept and application of fuel cell technology, and analyzes the improvement of fuel cell efficiency through thermal integration. The article also examines the thermal integration of PEMFC with RORC and methods to improve the overall efficiency of the fuel cell by utilizing the heat released by high-temperature PEMFC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Satya Sekhar Bhogilla
Summary: Thermo-chemical based thermal energy storage systems are receiving attention due to their higher energy density. Metal hydride based thermal energy storage systems are energy-efficient, compact, environmentally friendly, and available over a wide operating temperature range, making them ideal for concentrating solar power plants.
Review
Energy & Fuels
A. Ahmadi, Biplab Das, M. A. Ehyaei, F. Esmaeilion, M. El Haj Assad, D. H. Jamali, O. Koohshekan, R. Kumar, M. A. Rosen, S. Negi, Satya Sekhar Bhogilla, S. Safari
Summary: This paper discusses solar-powered agricultural product drying technologies, analyzes the impact of different types of solar dryers and their main parameters on performance, compares the performance of existing solar dryers, and outlines future research directions.
Article
Green & Sustainable Science & Technology
Uday Raj Singh, A. Sai Kaushik, Satya Sekhar Bhogilla
Summary: The study focuses on the energy analysis of an integrated system consisting of a solid oxide fuel cell operating in fuel cell mode and electrolyser mode, coupled with Rankine cycle, metal hydride system, and absorption refrigeration system for power generation, heating, and cooling applications. The results show a significant improvement in the performance of the integrated plant compared to the power generation using only the combination of the solid oxide fuel cell and the Rankine cycle. The maximum efficiency in fuel cell mode occurs at an inlet flow temperature of 900 K, and the maximum overall efficiency of the system in electrolyser mode is 88.82%.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Uday Raj Singh, Satyasekhar Bhogilla
Summary: This study presents a comparative analysis of the performance of metal hydride hydrogen storage units using LaNi5 and compacts of LaNi5 incorporated with expanded natural graphite (ENG). The research highlights the need to enhance thermal conductivity to improve heat transfer during hydrogen absorption. The results demonstrate that the use of LaNi5 and ENG compacts significantly improves heat transfer, hydrogen storage capacity, and reduces absorption time.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Satya Sekhar Bhogilla, P. S. Rama Sreekanth
Summary: The study compared the performance variation of CSP plants with and without thermal storage under different solar radiation conditions, and found that a CSP plant with 7-hour storage is the optimal choice in terms of techno-economic value.
Review
Polymer Science
Kishor Kumar Sadasivuni, John-John Cabibihan, Kalim Deshmukh, Solleti Goutham, Mohammad Khaleel Abubasha, Jyoti Prasad Gogoi, Igors Klemenoks, Gita Sakale, Bhogilla Satya Sekhar, P. S. Rama Sreekanth, Kalagadda Venkateswara Rao, Maris Knite
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2019)
Article
Energy & Fuels
Satya Sekhar Bhogilla
JOURNAL OF ENERGY STORAGE
(2017)
