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CROSS FIN-TYPE HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS USING CROSS FIN-TYPE HEAT EXCHANGER
CROSS FIN-TYPE HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS USING CROSS FIN-TYPE HEAT EXCHANGER
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机译：交叉翅片式换热器和使用交叉翅片式换热器的制冷循环装置
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摘要
A plurality of heat transfer fins 8 are arranged so as to surround straight pipe portions of heat transfer tubes 9 connected through bends in a serpentine arrangement. Heat transfer surfaces for transferring heat between air of the heat transfer tubes 9 and the heat transfer fins 8 have holes 21 each having a radius smaller than the critical radius of a nucleus that occurs upon phase change from water vapor to condensed water droplets such that the holes 21 are filled with the air at all times. Water is allowed to move from the holes 21 filled with the air having low surface energy to metal part having high surface energy, thus improving drainage.
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