| 摘要 |
PCT No. PCT/AU95/00555 Sec. 371 Date Apr. 30, 1996 Sec. 102(e) Date Apr. 30, 1996 PCT Filed Aug. 30, 1995 PCT Pub. No. WO96/07059 PCT Pub. Date Mar. 7, 1996To improve both heat transfer and evaporation in a heat exchanger (10, 25, 42) of an air cooler, there are provided a number of spaced narrow wet wicks (13) over which air flows transversely, and those wicks (13) are sandwiched between impervious spacer sheets (11, 12), the surface configuration of the spacer sheets (11, 12) being non-planar so as to increase the areas of the wicks (13) over which air flows, and also to increase air turbulence and thereby mixing, the increased mixing not only assisting in the evaporation of water from wicks (13) but also assisting in the heat transfer through the spacer sheets (11, 12) which define the air passages containing the wicks (13).
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