STUDY ON HEAT TRANSFER CHARACTERISTICS OF WALL IMPLANTED WITH HEAT PIPES IN ACTUAL BUILDINGS

Zhang Zhigang; Su Ke; Yao Wanxiang

doi:10.19912/j.0254-0096.tynxb.2021-0296

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 1-6. DOI: 10.19912/j.0254-0096.tynxb.2021-0296

STUDY ON HEAT TRANSFER CHARACTERISTICS OF WALL IMPLANTED WITH HEAT PIPES IN ACTUAL BUILDINGS

Zhang Zhigang¹, Su Ke¹, Yao Wanxiang^2,3

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Abstract

Based on the steady heat transfer experiments and dynamic heat transfer simulations of the wall implanted with heat pipes, a test system of the wall implanted with heat pipes is built in Tianjin area under actual environment. The test system is based on two identical structural dimensions rooms with heat pipes implanted in the south exterior wall of one of them, and the rooms are maintained at 18 ℃ with electric heater during the test period. The dynamic heat transfer characteristics of the wall in the actual environment are analyzed based on the test data. Compared to the ordinary wall, the results show that the wall implanted with heat pipes has a 3.4% increase in inner surface temperature and an increase in heat storage capacity. The average delay time of the wall implanted with heat pipes is 11.12 h, which is about 0.5 h behind the ordinary wall. The average attenuation multiple of the wall implanted with heat pipes is 89.37, which is larger than that of the ordinary wall. The energy saving rate of the wall implanted with heat pipes is 25.9% during the test period.

Key words

solar energy / heat pipes / heat transfer / delay time / attenuation multiple

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Zhang Zhigang, Su Ke, Yao Wanxiang. STUDY ON HEAT TRANSFER CHARACTERISTICS OF WALL IMPLANTED WITH HEAT PIPES IN ACTUAL BUILDINGS[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 1-6 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0296

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