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.
出处
《化工学报》
EI
CAS
CSCD
北大核心
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
关键词
镀层
沸腾传热
复合化学镀
池式沸腾
强化传热
chemical plating,heat transfer,pool boiling,heat transfer enhancement
