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Potential analysis of pumped heat electricity storages regarding thermodynamic efficiency
Renewable Energy, 2020Abstract The rising share of renewable energy sources in power generation leads to the need of energy storage capacities. In this context, also some interest in thermal energy storages, especially in a concept called pumped heat electricity storage (PHES), arises.
Dennis Roskosch +2 more
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Efficiency of heat storage in solar energy systems
Energy Conversion and Management, 1993Abstract The purpose of this research was to develop an original method of measurement of the efficiency of heat storage in solar energy systems. The method was tested experimentally by using an electric heater instead of the heat from solar collectors. A rectangular-shaped box was made to hold the material that is capable of holding heat.
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Applied Thermal Engineering, 2021
Abstract Using the thermal mass of building as the thermal battery is promising to increase energy efficiency and the penetration of renewable energy. However, the thermal storage capacity and energy use efficiency of floor, especially for those that are thermally activated, are still not clear.
Jiwei Guo, Yiqiang Jiang
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Abstract Using the thermal mass of building as the thermal battery is promising to increase energy efficiency and the penetration of renewable energy. However, the thermal storage capacity and energy use efficiency of floor, especially for those that are thermally activated, are still not clear.
Jiwei Guo, Yiqiang Jiang
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Energy, 2019
Abstract Thermochemical heat transformer based on reversible chemical reaction can combine the heat transformation and storage to realize the high-efficiency utilization of thermal energy. In this paper, an advanced thermochemical resorption heat transformer prototype was designed for the first time to verify a basic thermochemical resorption cycle ...
S. Wu, T.X. Li, T. Yan, R.Z. Wang
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Abstract Thermochemical heat transformer based on reversible chemical reaction can combine the heat transformation and storage to realize the high-efficiency utilization of thermal energy. In this paper, an advanced thermochemical resorption heat transformer prototype was designed for the first time to verify a basic thermochemical resorption cycle ...
S. Wu, T.X. Li, T. Yan, R.Z. Wang
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Energy and Exergy Efficiency of a Packed-bed Heat Storage Unit for Greenhouse Heating
Biosystems Engineering, 2003Abstract In this research, solar energy was stored daily using the volcanic material with the sensible heat technique for heating the tunnel greenhouse of 120 m 2 . The external heat collection unit consisted of 27 m 2 of south-facing solar air heaters mounted at a 55° tilt angle. The dimensions of the packed-bed heat storage unit were 6 m by 2 m by
Öztürk H.H., Başçetinçelik A.
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Harnessing Ambient Heat for Sustainable and Efficient Underground Energy Storage
ADIPECAbstract This study presents an innovative energy storage system utilizing subterranean flexible vessels to store energy in a form of compressed gas while leveraging ambient desert heat for thermal enhancement. The approach optimizes surrounding pressure and thermal retention, ensuring a cost-effective alternative to conventional ...
G. A. Aljuhani +2 more
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Synthetic approaches to efficiency enhancement of heat storage materials
2018This work deals with the synthetic approaches adopted for the enhancement of the efficiency, stability and durability of Mg(OH)2 for Thermochemical Storage of medium temperature heat.
C. Milone +6 more
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Comment on “Thermodynamic Efficiency of Pumped Heat Electricity Storage”
Physical Review Letters, 2016Jincan, Chen, Juncheng, Guo
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Transforming heat transfer with thermal metamaterials and devices
Nature Reviews Materials, 2021Ying Li, Wei Li, Tiancheng Han
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ENERGY AND EXERGY EFFICIENCY OF A HEAT STORAGE UNIT FOR BUILDING HEATING
Proceedings of International Symposium on Convective Heat and Mass Transfer in Sustainable Energy, 2009Mejdi Hazami +4 more
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