制冷学报Issue(5)：44-48,5.DOI:10�3969/j�issn�0253-4339�2014�05�044
蒸发式冷凝器单位传热面积最佳风量水量配比研究
Research on Optimal Ratio of Air Volume to Water Mass Flowrate for Evaporative Condenser
申江 1路坤仑 1刘丽 1张聪1
作者信息
- 1. 天津商业大学 天津市制冷技术重点实验室 天津 300134
- 折叠
摘要
Abstract
The influence of air volume to water mass flowrate ratio on heat and mass transfer was investigated in the test bench designed by the authors with oval tube evaporative condenser of parallel flow. Through research on the change of wind speed and spray density, it is found that the optimum air volume and water mass flowrate per unit heat transfer area to are 299. 9 m3/(h�m2) and 0. 63 kg/(h�m2) respectively, and the best face velocity of air and spraying density are 3. 28 m/s and 0. 057 kg/( m�s) respectively. The heat transfer coefficient measured at dry condition is only 1/10 of the normal working condition, which fully proves that the heat is mainly taken away by the latent in evaporative condenser. It is also pointed out that the performance of the whole system should be comprehensively consid-ered in the process of design to ensure the best EER of the system.关键词
蒸发式冷凝器/风量/水量/传热传质Key words
evaporative condensers/air volume/the amount of water/heat and mass transfer分类
化学化工引用本文复制引用
申江,路坤仑,刘丽,张聪..蒸发式冷凝器单位传热面积最佳风量水量配比研究[J].制冷学报,2014,(5):44-48,5.
