跨季节蓄热太阳能集中供热系统的仿真分析  

SIMULATION OF CENTRAL SOLAR HEATING SYSTEM WITH SEASONAL HEAT STORAGE

作　　者：赵军[1] 曲航[1] 崔俊奎[1] 戴传山[1] 

机构地区：[1]天津大学机械工程学院,天津300072

出　　处：《太阳能学报》2008年第2期214-219,共6页Acta Energiae Solaris Sinica

基　　金：天津市科技发展计划项目(06YFSYSF03600)

摘　　要：以天津市某一拟建工程项目为背景,应用TRNSYS(Version 16)软件对系统的长期运行特性进行了模拟,并分析了集热器面积-水箱体积比(A/V)对系统运行的影响;为比较准确地评估系统的蓄热能力,还提出了CSHPSS蓄热效率这一概念,并计算出系统在天津气候条件下A/V为0.2时的蓄热效率值和变化趋势;为分析国内不同气候条件对系统的影响,对同样系统在天津和沈阳两地的太阳能保证率进行了对比。通过系统仿真,得出天津市是比较适宜建设CSHPSS的地区,通过埋地水箱进行跨季节蓄热,在A/V比在0.1～0.4范围内,系统的太阳能保证率在运行的第2年即可达到31%～54%。The Central Solar Heating Plant with Seasonal Storage （ CSHPSS ） which includes a buried water tank is getting increasingly popular in the world. A CSHPSS in Tianjin, China is under design. The system was simulated with TRNSYS （ Version 16） to predict the long term performances, and ratio of collector area to tank volume （A/V）was investigated to reveal its influences to the system. To evaluate the storage capacity of the plant, the definition of storage efficiency for CSHPSS was put forward, and the values from the second to the fourth year were calculated for the system in Tianjin. The long-term variation of the storage efficiency can be predicted from the calculation result. Also a same CSHPSS in Shenyang was simulated to investigate the effects of different weather data on the system. The simulation reveals that Tianjin is suitable for installing CSHPSS, and the solar fraction of the system can reach 31%-54% with A/V of O. 1-0.4.

关 键 词：CSHPSS 跨季节蓄热 太阳能保证率 埋地水箱 TRNSYS 

分 类 号：TK512.4[动力工程及工程热物理—热能工程]