Pool-Boiling Liquid-Checking Limits Within and Above Modulated Porous-Layer Coating

池沸腾液体检查限制在调制多孔层涂层之内和之上

• 批准号: 9908961
• 负责人: Massoud Kaviany
• 金额: $ 26.56万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-12-15 至 2003-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9908961&HistoricalAwards=false
• 关键词: Pool; Boiling; Liquid; Checking; Limits

The enhancement of nucleate-boiling and the critical heat flux in pool boiling will be made using modulated porous-layer coating. The upper limits for enhancement will be examined, described, and optimized through modeling and experiments. A combination of empiricism and theory will be used. It is postulated that the choking limit of liquid delivery to the surface, i.e., the critical heat flux, is reached either by the hydrodynamic instability in the vapor removal, or by the solid-liquid viscous drag the porous-layer coating, whichever is smaller. It is expected that the results of this investigation will produce a porous-layer coating that exhibits optimalpool boiling heat transfer, and contribution to advances in high flux surfaces and to the design and fabrication of surface micro-structures for heat transfer purposes.

将使用调制的多孔层涂层进行沸腾沸腾的沸腾和临界热通量的增强。 通过建模和实验，将检查，描述和优化增强的上限。 将使用经验主义和理论的结合。 据推测，液体递送到表面的窒息极限，即临界热通量，可以通过蒸气去除中的流体动力不稳定性或通过固体粘性拖动多孔丝状涂层（以较小者为准）到达。 预计该研究的结果将产生多孔层涂层，该涂层表现出最佳的沸腾传热，并为高通量表面的进展以及用于传热目的的表面微结构的设计和制造。