加肋旋转对相变蓄热器蓄热性能的影响及场协同分析  

EFFECT OF RIBBED ROTATION ON HEAT STORAGE PERFORMANCE OF PHASE CHANGE THERMAL STORAGE UNIT AND FIELD SYNERGY ANALYSIS

作　　者：田扬 赵明[1] 胡明禹 张峰鸣 Tian Yang;Zhao Ming;Hu Mingyu;Zhang Fengming(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《太阳能学报》2021年第3期395-400,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51306120)。

摘　　要：建立加肋旋转的相变蓄热器模型,通过数值模拟研究不同转速下蓄热器的蓄热特性,并利用场协同理论进行相应的热分析。结果表明:加肋并旋转可显著提升相变蓄热器蓄热效果,缩短蓄热时间;通过提升转速可降低蓄热过程的场协同角,但过高的提升转速反而会使协同角增大,降低流动与换热协同性。从节能和场协同性角度综合考虑,不宜过高提升转速,转速控制在0.1~0.3 r/min的范围为最佳。The phase change heat storage model with rib rotation was established. The heat storage characteristics of the model at different speeds were studied by numerical simulation,and the corresponding thermal analysis was carried out by field synergy theory.The results shown that the ribbing and rotation can significantly improve the heat storage effect of the phase change thermal storage unit and shorten the heat storage time,the field synergy angle of the heat storage process can be reduced by increasing the rotation speed,but the excessively high lifting speed will increase the coordination angle. Reduce the synergy between flow and heat transfer. From the perspective of energy saving and field synergy,it is not advisable to increase the speed too high,and the speed control is optimal in the range of 0.1-0.3 r/min.

关 键 词：数值模拟 相变蓄热 旋转 转速 场协同 

分 类 号：TK02[动力工程及工程热物理]