重力对微管冷凝器换热效率影响的实验研究

Thanhtrung Dang, Kiencuong Giang, Minhhung Doan
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引用次数: 0

摘要

在内径为0.8 mm的微管冷凝器中,实验研究了重力对蒸汽冷凝换热的影响。该冷凝器的设计容量为700w。从实验结果看,冷凝器的实际容量与设计容量基本一致。在蒸汽0.08 ~ 0.27 g/s范围内,水平工况的换热效率高于垂直工况。然而,差别并不大。在本研究中,卧式冷凝器的最大换热速率为673.1 W,卧式冷凝器的最大换热系数为1601.9 W/m2。K.本实验增加了微管冷凝场重力、换热率、换热系数的研究结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experiments on Influence of Gravity to Heat Transfer Efficiency in Micro Tube Condenser
This study experimentally investigated the influence of the gravity to the condensation heat transfer of steam in a micro tube condenser with the internal diameter of 0.8 mm. The design capacity of this condenser is 700 W. From the experimental results, the actual capacity of the condenser is the same with the design capacity. In the range of steam from 0.08 to 0.27 g/s, the heat transfer efficiency of the horizontal case is higher than that obtained from the vertical case. However, the difference is not strong. In this study, the maximum heat transfer rate in the horizontal condenser is 673.1 W and the maximum heat transfer coefficient of the horizontal case is 1601.9 W/m2. K. This experiment added the results on the gravity, the heat transfer rate, and the heat transfer coefficient in the field of micro tube condensation.
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