基于TRNSYS的太阳能-地源热泵相变蓄热供暖系统对比分析研究  

COMPARATIVE ANALYSIS OF SOLAR-GROUND SOURCE HEAT PUMP PHASE CHANGE STORAGE HEATING SYSTEM BASED ON TRNSYS

作　　者：张亚磊 崔海亭[1] 王超 王晨 陈浩松 Zhang Yalei;Cui Haiting;Wang Chao;Wang Chen;Chen Haosong(School of Mechanical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学机械工程学院,石家庄050018

出　　处：《太阳能学报》2025年第1期579-586,共8页Acta Energiae Solaris Sinica

基　　金：河北省重点研发项目(22324501D);河北省自然科学基金(B2021208017)。

摘　　要：为降低温室大棚建筑能耗,以河北省某温室为研究对象,在温室现有的太阳能耦合地源热泵供暖系统(SGSHPH)基础上,设计太阳能-地源热泵相变蓄热供暖系统(SGSHPP-CHSH),利用TRNSYS软件搭建这两种系统的仿真模型,对两系统的仿真结果以及影响因素进行对比分析。研究结果表明:SGSHPP-CHSH系统相比SGSHPH系统在整个供暖季的太阳能集热器集热量提高10.75%;SGSHPP-CHSH系统相变储热罐蓄热温度从49.4℃降低到34.4℃,热泵机组能耗从10145 kWh降低到7843 kWh,热泵系统的COP从2.68升高到3.36;SGSHPH系统蓄热水箱的供水温度从45℃降低到30℃,热泵能耗从12837 kWh降低到8739 kWh,热泵机组COP从2.39增加到3.43;SGSHPH系统太阳能集热面积为48 m^(2)时,SGSHPP-CHSH系统太阳能集热面积为39 m^(2)时,此时两供暖系统在非供暖季土壤蓄热量等于在供暖季土壤取热量,可有效维持土壤的热平衡。The research focused on reducing energy consumption in greenhouse buildings by designing a solar-ground source heat pump phase-change heat storage heating system(SGSHPP-CHSH)based on an existing solar-ground source heat pump heating system(SGSHPH)in a greenhouse located in Hebei Province.Simulation models of both systems were built using TRNSYS software,and the simulation results and influencing factors were compared and analyzed.The findings indicate that the solar collector heat collection of the SGSHPP-CHSH is 10.75%higher than that of the SGSHPH throughout the entire heating season.Additionally,the phase change storage tank’s temperature decreased from 49.4℃to 34.4℃,resulting in reduced energy consumption for the heat pump unit(from 10145 kWh to 7843 kWh)and increased COP of the heat pump system(from 2.68 to 3.36).Similarly,for the SGSHPH,there was a decrease in water supply temperature from 45℃to 30℃,reduced energy consumption for the heat pump unit(from 12837 kWh to 8739 kWh),and an increased COP of the unit(from 2.39 to 3.43).Furthermore,When the solar collection area of the SGSHPH is 48 m^(2),and the solar collection area of the SGSHPP-CHSH is 39 m^(2),the soil heat storage in both heating systems during non-heating seasons equals to the soil heat extraction during heating seasons,effectively maintaining a balanced thermal state within the soil.

关 键 词：太阳能 热泵系统 供暖 TRNSYS仿真 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]