基于Feflow数值模拟的地源热泵地埋管管群长期运行特性研究  

Long-term Operation Characteristics of Underground Pipe Banks of Ground Source Heat Pumps Based on Feflow Numerical Simulation

作　　者：张琪 刘铮 ZHANG Qi;LIU Zheng(School of Energy Engineering,Tianjin Sino-German University of Applied Sciences,Tianjin 300350,China;Tianjin Municipal Engineering Design and Research Institute Co.,Ltd.,Tianjin 300392,China;CEEC Geothermal Co.,Ltd.,Beijing 100020,Chnia)

机构地区：[1]天津中德应用技术大学能源工程学院,天津300350 [2]天津市政工程设计研究总院有限公司,天津300392 [3]中能建地热有限公司,北京100020

出　　处：《建筑节能(中英文)》2025年第2期48-53,共6页Building Energy Efficiency

基　　金：天津市政工程设计研究总院有限公司重点科技课题(2024KYKT12)。

摘　　要：针对地源热泵地埋管管群的运行特点,结合实际工程案例,利用Feflow软件对地埋管管群土壤温度场的时间及空间分布特性进行模拟研究。应用Feflow软件建立地埋管换热器内、外温度场数学模型,通过土壤热响应实验及2U地埋管进、出水温度模拟,并与实测数据对比,证明模型是正确的。应用建立的数学模型对管群进行模拟研究,分析供暖季、供冷季土壤温度场空间分布特性,以及地埋管内流体进、出口温度变化特性。对管群温度场进行了5年期的运行模拟分析,为类似地埋管地源热泵系统的研究、规划设计、运行提供了借鉴。In view of the operation characteristics of ground-source heat pump buried pipe banks,combined with practical engineering cases,the time and space distribution characteristics of soil temperature field of buried pipe banks were simulated using Feflow software.Feflow software was used to establish a mathematical model of the internal and external temperature fields of the underground pipe heat exchanger.The accuracy of the model was verified through soil thermal response experiments and 2U underground pipe inlet and outlet water temperature simulations and comparison with measured data.The established mathematical model was used to conduct simulation research on the pipe banks to analyze the spatial distribution characteristics of the soil temperature field during the heating and cooling seasons,as well as the temperature change characteristics of the inlet and outlet of the fluid in the underground pipes.A five-year operational simulation of the temperature field of the pipe banks provides a reference for the planning,design,study and operation of similar ground source heat pump systems.

关 键 词：地源热泵 地埋管管群 Feflow软件 数值模拟 土壤温度场 换热特性 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]