The e ective heat released by the system can be expressed as Equation (25): Qc = MhCp.h(T3 T4) The temperature T9 of the thermal storage module at a certain moment can be solved by Equation (26).
Thermal energy storage (TES) is a technology under investigation since the early 1970s . At present, the research on EHSTSS mainly focuses on the thermal storage medium, heat transfer characteristics of the system and structural optimization of the system. However, less attention has been paid to the thermal calculation of EHSTSS.
In the thermal storage process of an EHSTSS, heat transfer methods include convective heat-transfer between heating elements and cold air, radiation heat-transfer between heating elements and thermal storage module and heat conduction inside thermal storage module.
Then, the instantaneous heat transfer characteristics of the thermal storage system (TSS) in the EHSTSS are analyzed, and the heat transfer process of ESS is simulated by the FLUENT 15 software. The uniform temperature distribution in the heat storage and release process of the TSS verifies the good heat transfer characteristics of the EHSTSS.
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Firstly, a thermal calculation method for the EHSTSS is proposed. The calculation flow and calculation method for key parameters of the heating system, heat storage system, heat exchange system
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