摘要
提出太阳能集热器系统单元（微元）段分节点热阻、热容网络－四维热网络概念，并以此建立腔体式吸收器－槽形抛物镜太阳能集热器系统的集热过程动态仿真模型。利用仿真模型和太阳直射辐射日分布模型计算了太阳直辐射强度、工作介质温度、瞬时集热效率和瞬时效率随时间的分布。
In this paper, the conception of thermal resistence and thermal capacity network of unit (differential) sections and separete joint points of the solar energy collector system is presented for the first time. The dynamic emulation mold of heat collection process of solar energy collector system with cavity receiver and through paraboid mirror is formed. With emulation mold and daily distribution mold of solar beam radiation, the distributions of average daily solar beam rediation intensity I b,actuating medium temperature T fm ,simultaneous heat collection efficiency P tot,c,n and the second law efficiency are calculated at condition of spring season when the average irradiation level in one year is represented.
出处
《煤气与热力》
1997年第5期36-40,共5页
Gas & Heat
关键词
太阳能集热器
仿真
四维热网络
太阳能利用
solar energy collector, emulation, four dimensions thermal network, division of meteoroligical districts
