东南大学学报（自然科学版）2017，Vol.47Issue(1)：73-78,6.DOI:10.3969/j.issn.1001-0505.2017.01.014
泡沫铝和石蜡复合相变材料的传热特性分析
Heat transfer characteristics on composite phase change materials filled with foamed aluminum and paraffin wax
摘要
Abstract
By pouring the melting paraffin into foamed aluminum,the composite phase change mate-rial phase change material (PCM)was constructed and the thermal conductivity of PCM was greatly improved.The square shape composite PCM with constant temperature on two sides and adiabatic boundary on another two sides was selected as a research object.Heat-transfer characteristics of pure paraffin,low density foamed aluminum PCM,high density foamed aluminum PCM were analyzed using the two-temperature model.The form of the analytical solution of the two-temperature model was deduced by the similarity theory.The numerical modeling of the heat-transfer process was made by using the apparent heat capacity method.The results show that the theoretical resolution form of the simplified two-temperature model is highly consistent with the numerical solution.Also,two-dimen-sional heat transfer can be simplified as one-dimensional heat transfer in the square shape.In addition, the heat conductivity coefficient of foamed aluminum PCM is highly improved compared with the pure paraffin.The temperature difference between the paraffin and the foamed aluminum in the phase change process cannot be ignored.关键词
复合相变材料/泡沫铝/双温度模型/显热容法/相似理论/有限容积法Key words
composite phase change material (PCM)/foamed aluminum/two-temperature model/apparent heat capacity method/similarity theory/finite volume method分类
能源科技引用本文复制引用
黄欣鹏,唐超权,施娟,陈振乾..泡沫铝和石蜡复合相变材料的传热特性分析[J].东南大学学报（自然科学版）,2017,47(1):73-78,6.基金项目
国家自然科学基金资助项目（51606037）、江苏省自然科学基金资助项目（BK20160687）、江苏省太阳能技术重点实验室资助项目． （）
