摘要
针对武汉地区一别墅建筑的空调、供暖、生活热水及用电需求,本文介绍了一套太阳能-空气源热泵耦合供能系统的设计和优化。采用SketchUp软件搭建建筑三维模型,并使用TRNBuild计算冷热负荷,确定各设备容量。进一步采用TRNSYS软件建立系统仿真模型,模拟季节运行得出全年数据。通过对比优化,确定了系统最节能的集热器与光伏面积配比为1∶6.5,系统太阳能综合利用率最高达19.80%。结果表明,该耦合系统全年耗电量主要由室内冷热负荷决定,太阳能集热效率在40%左右,太阳能保证率为75.7%,热泵全年COP在2.8左右,系统能效比EER为3.3,系统回收期为7.37 a。该系统兼具经济、节能、环保等特点,可为系统在武汉及周边农村地区推广应用提供理论依据。
This article introduces the design and optimization of a solar-air source heat pump coupled energy supply system in response to the air conditioning,heating,domestic hot water,and electricity demands of a villa in Wuhan.A three-dimensional model of the building was built using SketchUp software,and the cold and heat loads were calculated using TRNBuild to determine the capacity of each device.Furthermore,the TRNSYS software was used to establish a system simulation model,and the annual data was obtained by simulating seasonal operation.Through comparative optimization,it was determined that the system's most energy-efficient collector to photovoltaic area ratio was 1∶6.5,and the system's overall solar energy utilization rate reached a maximum of 19.80%.The results show that the system's annual power consumption is mainly determined by the indoor cold and heat load,the solar collection efficiency is around 40%,the solar guarantee rate is 75.7%,the heat pump's annual COP is around 2.8,the system's energy efficiency ratio(EER)is 3.3,and the system payback period is 7.37 a.This system has economic,energy-saving,and environmental protection characteristics and can provide a theoretical basis for promoting the application of the system in Wuhan and surrounding rural areas.
作者
张春枝
雷赢昌
李涛
吴宇红
毛前军
ZHANG Chun-zhi;LEI Ying-chang;LI Tao;WU Yu-hong;MAO Qian-jun(Wuhan University of Science and Technology,College of Urban Construction,Wuhan 430065,China;Anhui University of Architecture,Anhui Engineering Technology Research Center for Building Energy Efficiency,Hefei 230022,China)
出处
《节能技术》
CAS
2023年第5期393-399,431,共8页
Energy Conservation Technology
基金
太阳能供暖关键部件设计及系统优化研究(Q20221110)。
关键词
农村别墅
耦合系统
仿真模拟
面积配比
系统能效比
节能减排
rural villa
coupled system
simulation and modeling
area ratio
system energy efficiency ratio
energy saving and emission reduction
