不同地区住宅能耗与太阳能吸收式空调系统匹配性分析与模拟研究

Analysis and Simulation of the matching residential energy consumption and solar absorption air conditioning system in different areas

为了满足农村住宅清洁用能的需求,多种形式的能源系统逐渐开始应用于广大的农村地区。随着太阳能集热器集热效率的提高,热驱动机组各项性能不断改善,这样有利于太阳能吸收式空调系统在农村地区的应用。为了研究太阳能吸收式空调系统与农村住宅全年能耗的匹配问题,文章首先建立了DeST住宅模型,然后利用TRNSYS软件建立了太阳能吸收式空调系统模型,最后根据模拟结果对国内不同气候区内农村住宅供热季、供冷季的平均热负荷值,以及全年的能耗进行分析。此外,文章还分析了典型日太阳能吸收式空调系统的运行策略与效果。分析结果表明:在无辅助热源的条件下,太阳能集热器的集热温度会大于80℃,满足空调机组的热驱动温度,因此可以作为太阳能吸收式空调系统的的热源;当启动温度为85℃时,空调机组的制冷量可以达到8 kW,性能系数COP为0.733。

In order to meet the needs of rural residential clean energy,various forms of energy system are gradually applied to the vast rural areas.With the improvement of the efficiency of solar collector and the performance of thermal drive unit,solar absorption air conditioning system can be applied in new countryside.In this paper,the matching problem between solar thermal driving system and annual energy consumption of rural residential buildings is studied.Firstly,the residential model is established by DeST,and then the solar absorption air conditioning system model is established by TRNSYS software.Based on the model established by DeST,the rural residential buildings in different climate zones in China are simulated and studied,and the average heat load values in heating season and cooling season are analyzed.Finally,the solar thermal driving refrigeration system established by TRNSYS is used to analyze the operation strategy and operating effect of typical day.The results show that:without auxiliary heat source,the solar collector's temperature will be greater than 80℃,which can meet the thermal driving temperature of air conditioning unit,so it can be used as the heat source of solar absorption air conditioning system;when the heat source temperature is 85℃,the cooling capacity of air conditioning unit can reach 8 kW,and its performance coefficient COP is 0.733.