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以氨为介质以横纹管为强化元件的额定制冷量为139.2千瓦(120,000千卡/小时)的卧式冷凝器的试验结果表明,横纹管对于氢卧式冷凝有着显著的传热强化效果。在试验条件下,横纹管冷凝器的总传热系数是光管的1,65倍,可节省换热面积40％.这项横纹管强化传热技术可在氨制冷机中推广使用。
The experimental results of a horizontal condenser with a capacity of 139.2 kilowatts (120,000 kcal / h) using ammonia as a medium and a crossbeam as a reinforcing element show that the cross-tube has a significant heat transfer enhancement effect on hydrogen horizontal condensation . Under the experimental conditions, the total heat transfer coefficient of the transverse tube condenser is 1,65 times that of the light tube, which can save 40% of the heat exchange area. This transverse tube enhanced heat transfer technology can be widely used in ammonia refrigerators.