太阳集热器与空气源热泵联合供热系统研究

RESEARCH OF COMBINING SOLAR COLLECTOR AND AIR-SOURCE HEAT PUMP HEATING SYSTEM

该文对一套太阳集热器与空气源热泵联合供热系统进行优化。对主要部件建立数学模型,并应用TRNSYS软件建立系统仿真模型,实现各系统模型耦合求解。在全年工况下,对补水方案、太阳集热器面积及储热水箱与恒温水箱的容积比等参数进行仿真分析。结果表明:白天仅在早上补水1次,集热器面积取344 m^2,储热水箱与恒温水箱容积比值为1.5时,系统性能最优;优化后,系统较优化前节能11.9%。

This paper optimizes a solar and air source heat pump combined heating system.A simulation model is established by TRNSYS software,which is solved coupling with subsystems.Then,we perform a parametric study on the operation of the system under annual running condition,by which feed-water strategy,solar collector area and water tank volume ratio are analyzed.The results show that the system has the optimal solutions,when only feeding water once at morning,restricting solar collector area to 344 m^2,and selecting the volume ratio of the heat storage tank to the constant temperature water tank as 1.5;After optimization,the system energy conservation increases by 11.9%.