SGER: Effects of a Porous Boundary on Convective Condensation in Small Diameter/Micro-Channels

摘要 本项目旨在资助微通道内两相流传热的创新性探索性研究。 微通道在涉及高热通量的电子冷却和微型热交换器中有应用。 新的想法是采用多孔边界作为灯芯，以帮助去除冷凝物。 现有的知识，热和流体在多孔介质中的流动，涉及较大的通道不适用，因为力作用在流体不与物理尺寸线性缩放。 首席研究员建议进行实验，研究冷凝两相流行为的物理学，并确定多孔边界对传热的影响。

ABSTRACT This proposal is to fund innovative exploratory research on two-phase flow heat transfer in microchannels. Microchannels have applications in electronics cooling and miniature heat exchangers involving high heat fluxes. The new idea is to employ a porous boundary to act as a wick to assist in the removal of condensate. Existing knowledge about heat and fluid flow in porous media involving larger channels does not applied because the forces acting on the fluid do not scale linearly with the physical dimensions. The Principal Investigator proposes to conduct experiments to study the physics of condensing two-phase flow behavior and determine the effects of the porous boundary on heat transfer.