Journal
APPLIED THERMAL ENGINEERING
Volume 151, Issue -, Pages 486-494Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2019.01.108
Keywords
Wall implanted with heat pipes; District heating; Hot summer and cold winter zone; Western Europe
Funding
- Natural Science Foundation of Tianjin [17JCYBJC21400]
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The heat transfer performance of the heat pipe, which is the key component of a wall implanted with heat pipes (WIHP), has a great influence on the energy saving potential of WIHP. In this paper, the structure of heat pipes in WIHP is optimised and the equivalent heat transfer coefficient (EHTC) of Z-WIHP and H-WIHP is investigated experimentally in Tianjin. The working hours, heat transfer capacity and energy saving rate for H-WIHP are simulated numerically using meteorological data for typical cities in the hot summer and cold winter (HSCW) zone of China and in Western Europe. The results show that the average EHTC of H-WIHP is 1.12 W/(m(2).K), which is 7.7% higher than that of Z-WIHP. The energy saving rate for H-WIHP can reach about 12.7% in Tianjin, 15-25% in the HSCW zone and 15-35% in London, Paris, Lyon, Rome and Madrid. In summary, the H-WIHP has excellent prospects for future development due to large energy saving potential.
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