Heat Transfer Characteristics of the Melting Process of the Metal Foam/Paraffin Compound Material |
| |
| Authors: | YU Hang LIU Fang MENG Er lin and YAO Xin ling |
| |
| Institution: | College of Mechanical Engineering,Tongji University, Shanghai 201804,P.R.China;College of Mechanical Engineering,Tongji University, Shanghai 201804,P.R.China;College of Mechanical Engineering,Tongji University, Shanghai 201804,P.R.China;College of Mechanical Engineering,Tongji University, Shanghai 201804,P.R.China |
| |
| Abstract: | In order to enhance the heat transfer in the phase change heat storage device, a rectangular cavity filled with metal foam / paraffin wax is made. The melting heat storage experiment of foam metal / wax composite phase change material was carried out in the transverse wall temperature conditions. The temperature change curve is drawn according to different heating temperatures. Both the effects of natural convection in rectangular cavity on temperature distribution and the impact of heat transfer temperature difference on the thermal storage time are analyzed. The results show that the melting process of the paraffin in the body cavity is reinforced by the high thermal conductivity of copper foam. The remaining solid paraffin is accelerated to melt by the natural convection of the liquid paraffin formed near the heating surface; and the greater the heat transfer temperature difference is, the greater the natural convection is and the shorter the time for heat storage is. |
| |
| Keywords: | metal foam paraffin waxes natural convection heat transfer temperature difference |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
|
