整体针翅管强化传热实验研究

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Experimental Study of Heat Transfer Enhancement ofIntegral Pin-fin Tube

1. College of Power and Nuclear Energy Engineering, Harbin Engineering University, 150001, China;
2. Shentong Mechanical Factory, Nantong, Jiangsu, 226011, China

摘要: 在润滑油竖直纵向冲刷的条件下,对整体针翅管进行了换热特性的实验研究,分析了针翅管的节距(T)、翅高(b)、加工方向、润滑油进口温度(t)和冷却水流速(v)对针翅管传热性能的影响。在本实验范围内,整体针翅管的总换热系数k可达200～1470W/m²ˇK,比相同条件下的光管可增加1～4倍。实验结果表明,整体针翅管是一种比较适合于以高粘度流体作为工质的换热器的新型强化换热管。
- 整体针翅管 /
- 润滑油 /
- 强化传热
Abstract: Under the condition of lubricating-oil vertically flowing through the surface of integral pin-fin tube,the experimental investigations of heat transfer characteristics were carried out.Effects of pitch and height of fins,machining direction,inlet temperature of lubricating-oil and velocity of cooling water on heat transfer characteristic were analyzed.In these experiments,total heat transfer coefficient of integral pin-fin tube reached 200~1470 W/m²ˇK,which increased 1~4 times as compared with the smooth tube.Experi-mental results showed that the integral pin-fin tube was a new kind of enhanced tube fitting for high-viscosity fluid.
- Integral pin-fin tube /
- Lubricating-oil /
- Heat transfer enhancement