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对轧片式椭圆铝翅钢管用作换热器的传热及流阻特性进行了测试 ,并用威尔逊图解法分离出换热器两侧的换热系数。结果表明 ,椭圆铝翅钢管具有良好的传热和流阻性能 ,以及足够的结构强度 ,可用于空冷发电机组的空气冷却器及大中型变压器。
The heat transfer and flow resistance characteristics of rolled oval aluminum-finned steel pipe used as heat exchanger were tested, and the heat transfer coefficients on both sides of the heat exchanger were separated by Wilson’s graphic method. The results show that the oval aluminum-finned steel pipe has good heat transfer and flow resistance, and sufficient structural strength, which can be used for air coolers and large and medium-sized transformers for air-cooled generator sets.