Two methods of enhancing the heat transfer performance for high frequency finned tubes
At present, the most common and widely used in the domestic and foreign is the high frequency finned tube, the other type of fin tube design and calculation is often used in view of the high frequency fin tube. The research of high frequency fin tube is mainly focused on how to improve the heat transfer performance. In this paper, a method to enhance the heat transfer performance of high frequency fin tubes is presented, and the structure of high frequency fin tubes is optimized and improved. The thermal performance of the high frequency fin tube was tested by TESCOR platform, and the performance of the high frequency fin tube was tested.
The structure of high frequency fin and tube was optimized and improved, and the thermal performance of the high frequency fin and tube was tested by TESCOR platform and high performance test bench. Strengthening high fin tube heat exchanger thermal properties of two kinds of methods: A is will be under low temperature conditions easily frosted high fin tube evaporator finned tube design variable fin spacing structure, which not only increased the internally finned tube heat transfer area, and improve the velocity of air flow in a tube; another a kind of is under the condition of high fin tube pitch thread pipe to change the pitch of the internal thread tube, to increase the air flow in a tube of disturbance and improve the heat transfer coefficient is proposed. The thermal performance of the high frequency fin tube was calculated by the two methods, the results show that the heat transfer coefficient of the high frequency fin tube is increased by 98% and 382% respectively.