该文以湖南科技大学应用水源热泵系统的水体——月湖为对象,通过调查分析湖水源热泵系统运行时对湖水水温造成的影响及景观水体构建对湖体得热与散热的影响,得出结论：基于麦凯尔方程计算水气之间对流换热叠加飞散水滴换热量,形成新的公式用于瀑布散热量计算的误差为4.3%,景观水体对湖水降温起到了有效作用;通过观测分析,确定湖水变温层的厚度,并用湖水净得热量在湖水变温层内计算的理论温差值与实际测量温差值的误差为2%。
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.
关键词
湖水源热泵 /
热交换 /
景观水体 /
热平衡 /
自然水温
Key words
lake water source heat pump /
heat exchange /
landscape water /
thermal equilibrium /
natural water temperature
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基金
国家自然科学基金（51134005）; 湖南省联合基金（2020JJ6028）
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