Heat transfer performance of concrete-based thermal storage modules for solar thermal heating systems

doi:10.3969/j.issn.2095-4239.2013.03.009

Abstract

Abstract: This paper concerns a solar thermal water heating system that combines two concrete modules connected in series for thermal energy storage. The heat transfer performance of the concrete based thermal storage unit was investigated experimentally. The results showed that the temperature of the concrete thermal storage modules increased from 31.5 ℃ to 65 ℃ within a charging period of 6 h using solar thermal energy, and the water temperature difference from the storage was about 10 ℃. During the discharging process, the outlet water temperature was about 45 ℃, which could potentially be used for building heating for 8 h.

Key words: concrete thermal storage, solar energy, heating building

CLC Number:

TK511.2

WANG Yan, JIAN Yongfang, BAI Fengwu, TIAN Binshou, LI Yang. Heat transfer performance of concrete-based thermal storage modules for solar thermal heating systems[J]. Energy Storage Science and Technology, 2014, 3(3): 244-249.

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