淡水与海水对蒸发冷却性能影响的试验研究  

Experimental study on the evaporative cooling performance using freshwater and seawater

作　　者：龙国庆 闫明暄 何锁盈 徐梦菲 孙奉仲[2] LONG Guoqing;YAN Mingxuan;HE Suoying;XU Mengfei;SUN Fengzhong(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510660,China;School of Energy and Power Engineering,Shandong University,Jinan 250061,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广州510660 [2]山东大学能源与动力工程学院,济南250061

出　　处：《流体机械》2021年第4期79-84,共6页Fluid Machinery

基　　金：国家重点研发计划项目(2016YFC0700404,2016YFC0700407);山东大学青年学者未来计划项目(2018WLJH73)。

摘　　要：针对利用海水替代淡水进行蒸发冷却可行性的问题,首先,对厚度为100 mm的蒸发冷却用填料CELdek7060进行了试验研究,分别研究了淡水以及不同海水浓度(0.5倍、1倍和1.5倍海水)下的蒸发冷却性能,研究结果表明,用海水替代淡水进行蒸发冷却时,其引起的空气侧压降几乎无变化,冷却效率降低的不是特别大,在风速1,2 m/s时,淡水的冷却效率分别比实际海水(即1倍浓度海水)的高5.0%,3.6%。结果表明可以用海水替代淡水进行蒸发冷却,实现节省淡水资源的目标。In view of the feasibility of using seawater instead of fresh water for evaporative cooling,first of all,the performance of evaporative cooling with a thickness of 100 mm was studied by using the fill called CELdek7060.The evaporative cooling performance with fresh water and sea water of different concentrations(0.5 time,1 time and 1.5 times of sea-water concentration)was studied.The results show that the air side pressure drop caused by seawater instead of fresh water for evaporative cooling had almost no change,and the cooling efficiency was not significantly reduced when the wind speed was 1 m/s and 2 m/s,the cooling efficiency of fresh water was 5.0%and 3.6%higher than that of the actual seawater(i.e.1 time of sea-water concentration).It is possible to use seawater instead of fresh water for evaporative cooling to achieve the goal of saving fresh water resources.

关 键 词：淡水 海水 蒸发冷却 填料 

分 类 号：TH12[机械工程—机械设计及理论] TU831.6[建筑科学—供热、供燃气、通风及空调工程]