基于TRNSYS的土壤-海水双源热泵系统运行特性分析  

Operation characteristics analysis of seawater-soil dual source heat pump system based on TRNSYS

作　　者：王敬博 于慧俐[1] 刘明辉 胡松涛[1] 高磊 Wang Jingbo;Yu Huili;Liu Minghui;Hu Songtao;Gao Lei(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266033

出　　处：《可再生能源》2021年第12期1610-1616,共7页Renewable Energy Resources

基　　金：国家自然科学基金(5207082856);青岛市科技惠民项目(18-6-1-105-nsh)。

摘　　要：文章利用TRNSYS软件建立了土壤-海水双源热泵系统仿真模型,基于该模型模拟分析了毛细管内流速、浅滩海床中海水渗流速度和变流量调节方式3种因素对毛细管网箱换热器换热量和热泵系统运行特性的影响。模拟结果表明:该热泵系统在供冷、供暖季均具有较好的供能效果;与毛细管内流速相比,不同砂土的渗流特性对毛细管网箱换热器换热量的影响更加显著;在建筑部分负荷时段,通过水泵的变频调节,可以有效降低水泵功耗,增大系统COP来充分节能,对实际工程应用具有指导意义。In this paper,a seawater-soil dual source heat pump system simulation model was established based on TRNSYS software,and the effects of three factors,namely the flow velocity in the pipe,the seepage velocity and the variable flow adjustment method,on the heat transfer of capillary box heat exchangers(CBHEs)and the operating characteristics of the system were analyzed.The simulation results show that the heat pump system has a better energy supply effect during the cooling and heating seasons.Compared with the flow velocity in the capillary,the seepage intensity of the sands has a more significant effect on the heat exchange of the CBHEs.During the part-load period of the building,the frequency conversion adjustment of the water pump can effectively reduce the power consumption of the water pump and increase the system COP to fully save energy,which has guiding significance for practical engineering applications.

关 键 词：土壤-海水双源热泵系统 毛细管网箱换热器 TRNSYS 运行特性 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程]