可再生能源2018，Vol.36Issue(5)：690-695,6.
矩形腔相变蓄热装置蓄热性能的数值模拟及优化
Numerical simulation and optimization of heat transfer characteristics of rectangular cavity phase change heat storage
摘要
Abstract
In view of the poor performance of traditional heat storage,this paper adopted the method of numerical simulation, explored the heat transfer characteristics of traditional rectangular heat storage in its heat storage process. In order to improve performance of the heat storage, this paper presented a new type of heat storage with the cavity which is different in the accumulation of number, length, angle of the cavity. By changing the number of cavity, the heat storage rate was increased by 27.3% compared with the traditional rectangular heat storage.By changing the length of cavity, it was found that when the length of the cavity was 35 mm, the heat storage time was reduced by 45% compared with the traditional rectangular heat storage. Finally, by changing the cavity inclination, it was found that the horizontal cavity (the angle of 0 °) is optimal to the promotion of regenerative effect,inclined cavity had no positive effect, and it could bring negative effects.关键词
矩形腔蓄热装置/空腔/蓄热性能/热场优化分布/数值模拟Key words
traditional rectangular heat storage/cavity/heat transfer performance/thermal field optimization distribution/numerical simulation分类
能源科技引用本文复制引用
洪鼎华,刘士琦,陶汉中..矩形腔相变蓄热装置蓄热性能的数值模拟及优化[J].可再生能源,2018,36(5):690-695,6.基金项目
江苏省自然科学基金(BK20151549) （BK20151549）
江苏省太阳能技术重点实验室开放基金(JPKLSST201505). （JPKLSST201505）
