摘要
目的为了提高严寒地区太阳能与常规能源联合供暖过程中太阳能集热系统的效率,充分利用可再生能源.方法以沈阳地区某一利用太阳能与常规能源联合供暖的住宅为研究对象,对太阳能平板集热器建立数学模型,分析当集热管的进口流量和进口温度不断变化的过程中太阳能集热器吸收率的变化情况.结果当流量控制在0.04 kg/s集热器效率为58%;当流量控制在0.08 kg/s集热器效率为61%;当流量控制在0.12 kg/s集热器效率为62%;当集热器进口温度为0℃时效率为85%;当进口温度为30℃时集热器效率为25%.结论集热器涂层,透过率,进口流量以及进口温度的改变都影响太阳能集热器的热效率.
The aim of this paper is to improve the efficiency of solar energy in coupled heating sys-tem with conventional energy and solar energy in cold region, so as to make full use of the renew-able energy. Taking a residence heated by conventional energy associated with solar energy in She-nyang area as a research object, a mathematical model for the plate solar collector was built and thesolar collector efficiency during changing of the inlet flow and temperature in collector was ana-lyzed. Results show that when the flows are controlled by 0. 04 kg/s,0. 08 kg/s and 0. 12 kg/s,the corresponding collector efficiencies are 58% ,61% and 62% ,respectively;when the inlet tem-peratures are 0 ℃and 30 ℃ ,the corresponding effeciencies are 85% and 25%. Conclusion is thatall of the collector coating, the transmittance, the collector inlet flow and temperature have effectson the thermal efficiency of solar collector.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2015年第1期117-123,共7页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家十二五科技支撑计划项目(2011 BAJ05B02-2)
关键词
太阳能集热器
集热器效率
热性能
流量分布
solar collector
collector efficiency
thermal performance
flow distribution
