HEAT TRANSFER ANALYSIS AND WATER HEAT BALANCE CALCULATION OF LAKE WATER SOURCE HEAT PUMP SYSTEM

Xiang Jiahui; Zou Shenghua; Li Wenjing

doi:10.19912/j.0254-0096.tynxb.2021-1421

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 371-376. DOI: 10.19912/j.0254-0096.tynxb.2021-1421

HEAT TRANSFER ANALYSIS AND WATER HEAT BALANCE CALCULATION OF LAKE WATER SOURCE HEAT PUMP SYSTEM

Xiang Jiahui¹, Zou Shenghua¹, Li Wenjing²

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Abstract

Taking Yue Lake water body in Hunan University of Science and Technology as the research object, which is applied ub the water-source heat pump system, the influence of the lake-water-source heat pump system on the lake water temperature and the influence of the construction of the landscape water on the heat gain and heat dissipation of the lake body are analyzed through experiments. The result shows that the convective heat transfer between water and air is calculated based on the Mckell equation and the heat transfer of flying water droplets is superimposed, and a new formula is formed for the calculation of waterfall heat dissipation with the error is 4.3%, and the landscape water plays an effective role in cooling the lake. The thickness of the variable temperature layer of the lake water is determined through observation and analysis, and the error between the theoretical temperature difference and the actual measured temperature difference is 2% when the net heat gain of the lake water is calculated within the variable temperature layer.

Key words

lake water source heat pump / heat exchange / landscape water / thermal equilibrium / natural water temperature

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Xiang Jiahui, Zou Shenghua, Li Wenjing. HEAT TRANSFER ANALYSIS AND WATER HEAT BALANCE CALCULATION OF LAKE WATER SOURCE HEAT PUMP SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 371-376 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1421

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