摘要
太阳能热水系统中蓄热水箱热分层的研究,已经成为目前提高太阳能集热器效率和太阳能保证效率的重要方向,良好的热分层一方面可以降低进入集热器的温度,减少传热损失,提高集热器效率;另一方面可以提高水箱内可被利用的高温水量,减少辅助加热量,从而提高整个太阳能热水系统的性能。综合国内外文献,总结了蓄热水箱热分层现象,热分层的数学模型以及影响因素,并展望了热分层蓄热水箱的研究趋势。
Study of thermal stratified storage tank in Solar Water Heating Systems has become an important direction to improve efficiency of the collector and solar fraction. A good thermal stratification can decrease the inlet temperature of the collector so as to increase its efficiency,on the other hand, decrease the consumptionof the auxiliary energy supply. Which can improve the performance of the entire solar water heating system. According to the domestic and foreign literatures,This paper introduced the thermal stratification of hot water storage tank, summarized the mathematical model of the thermal stratification and the influence factors. The tendency of the thermal stratified storage tank for solar energy is prospected.
出处
《应用能源技术》
2017年第2期33-38,共6页
Applied Energy Technology
关键词
热分层
太阳能
蓄热水箱
进出口结构
运行条件
Thermal stratification
Solar energy
Hot water storage tank
Inlet and outlet structure
Operation condition
