| 摘要 |
PROBLEM TO BE SOLVED: To provide a micro-channel heat exchanger suited for use in large-area cold plates. SOLUTION: The micro-channel heat exchanger 10 suited for use in large-area cold plates includes: a heat transfer member 14 having winding micro-channels 30; a manifold 12; and a cover plate 15. The winding design of the micro-channels 30 is defined by a nonlinear flow axis 36 that may include a plurality of short pitch and small amplitude undulations 38, which cause the flow to change directions, as well as two or more large amplitude first bend 40a and second bend 40b that cause the flow to reverse direction. In low flow per unit area applications, the winding micro-channels allow a user to customize the pressure drop to promote good flow distribution, to achieve improved heat transfer uniformity, and to enable the pressure drop to remain above the bubble point of the heat transfer structure to prevent gas blockage. The winding micro-channels also improve the heat transfer coefficient. COPYRIGHT: (C)2010,JPO&INPIT |
