联供模式地下换热器温变及其热泵效能分析  

Analysis of temperature of underground heat exchanger and efficiency of heat pump with combined cooling and heating

作　　者：齐子姝[1,2,3] 高青[1,3] 刘研[1,3] 于鸣[4] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022 [2]吉林建筑工程学院市政与环境工程学院,长春130118 [3]吉林大学汽车工程学院,长春130022 [4]吉林大学材料科学与工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2012年第2期339-343,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(41072198);吉林省教育厅项目([2012]第207号)

摘　　要：在地下换热器G函数理论基础上,建立了地源热泵热力过程计算模型。研究了地下换热器和热泵运行的基本性能,及其单供和联供的主要差异。通过计算孔井壁面温度及地下换热器进、出口流体温度,对热泵能效比、能耗等热力参数进行了对比分析。以严寒地区和夏热冬冷地区为例,结合冷热负荷需求,研究了冷热单供与联供方式对地下换热器温变和热泵效能的影响作用。A thermodynamic calculation model was built for the ground source heat pump based on the G-function theory of the underground heat exchanger. The basic performance of the underground heat exchanger and the heat pump, and the main differences between the combined cooling and heating mode and the single mode were studied. The thermodynamic parameters, such as the coefficient of performance of the heat pump, and the energy consumption were analyzed comparatively by calculating the borehole wall temperatures and the fluid temperatures at the inlet and outlet of the underground heat exchanger. Taking the severe cold region and the hot summer and cold winter region as examples, the effects of the combined cooling and heating, and the single cooling or heating on the temperatures of the underground heat exchanger and the efficiency of the heat pump were studied in combination with the cooling and heating load demands.

关 键 词：工程热物理 地源热泵 冷热联供 地下换热器 能效比 

分 类 号：TK529[动力工程及工程热物理—热能工程]