Abstract
In order to reduce the weight of air-conditioner, a new type micro-channel heat exchanger is applied for heat pump system. The micro-channel heat exchanger has high performance compared with a conventional fin and tube type heat exchanger due to its characteristic configuration. However, there are some challenges, when the micro-channel heat exchanger is applied for heat pump system. One of the most difficult problems is to improve the drainage of condensed water when it is used as an evaporator. To solve this problem, a new shape fin named "Insertion waffle louver fin" is proposed. In addition, the specifications of the heat exchanger, such as louver configurations and tube arrangement, are optimized for heat pump system. As a result, the micro-channel heat exchanger can reduce the weight about one third and the amount of containing remgerant about one fourth compared with a conventional fin and tube type heat exchanger
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