用复合化学镀层强化沸腾传热  

POOL BOILING HEAT TRANSFER ON SURFACES ENHANCED BY CHEMICAL PLATING

作　　者：宋永吉[1] 熊杰明[1] 梁克民[2] 

机构地区：[1]北京石油化工学院化工系,北京102617 [2]沈阳工业大学石油化工学院,辽宁沈阳110021

出　　处：《化工学报》2002年第11期1202-1205,共4页CIESC Journal

基　　金：辽宁省博士科研基金资助项目

摘　　要：A new method was developed to obtain a new kind of enhanced surface for pool boiling heat transfer.In this method the combined chemical plating (electroless plating) layer was obtained on common metal substrate.The layer was made of metal and nonmetal elements and consisted of polymer particles.By high temperature heat treatment the polymer particles were carbonized to form micropores.The size and density of micropores may vary with the size and density of the polymer particles in the plating solution. It was found that there was a noncrystal metal layer on this kind of surfaces and there were enough ideal cavities on the surface which promoted the initiation of bubbles of nucleate pool boiling.Pool boiling heat transfer measurements were made by using a plain copper surface and the enhanced surface with water at atmospheric pressure.A new method was developed to obtain a new kind of enhanced surface for pool boiling heat transfer.In this method the combined chemical plating (electroless plating) layer was obtained on common metal substrate.The layer was made of metal and nonmetal elements and consisted of polymer particles.By high temperature heat treatment the polymer particles were carbonized to form micropores.The size and density of micropores may vary with the size and density of the polymer particles in the plating solution. It was found that there was a noncrystal metal layer on this kind of surfaces and there were enough ideal cavities on the surface which promoted the initiation of bubbles of nucleate pool boiling.Pool boiling heat transfer measurements were made by using a plain copper surface and the enhanced surface with water at atmospheric pressure.

关 键 词：镀层 沸腾传热 复合化学镀 池式沸腾 强化传热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]