双热质耦合加湿除湿海水淡化性能试验分析  

Performance Analysis Experimentally of a Dual Heat and Mass Transfer Coupled Humidification Dehumidification Desalination

作　　者：汲超 韩东[1] 王景炎 JI Chao;HAN Dong;WANG Jing-yan(College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210000, China)

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210000

出　　处：《节能技术》2019年第2期134-139,共6页Energy Conservation Technology

基　　金：国家自然科学基金项目(51406081)

摘　　要：基于加湿除湿海水淡化技术,采用直接接触式除湿方法,设计了双热质耦合加湿除湿海水淡化装置。构建了相关的试验系统,并对海水淡化装置的热力性能进行了试验测试,获得了双热质耦合加湿除湿海水淡化系统设计工况点下的热力性能,并对海水流量、空气流量和气体分布器与海水淡化系统性能的依变规律进行了研究。测试结果表明:在双热质耦合加湿除湿海水淡化系统设计工况下,装置造水量和单位体积造水量分别达到5.3 kg·h^(-1)和16.56 kg·m^(-3)·h^(-1);产水量随着海水流量增加先增加12.5%后减小20.6%;减小空气流量装置的造水量减小了9.7%;加湿器引入气体分布器,装置的产水量增加11.3%。A dual heat and mass transfer coupled humidification dehumidification (HDH) desalination device by direct contact dehumidification method was designed based on the humidification dehumidification desalination technology. The thermal performance of dual heat and mass transfer coupled HDH desalination system under the design conditions was obtained by experiment. The effect of seawater flow rate, air flow rate and gas distributor on the performance of the HDH desalination system were also experimentally studied in this paper. The experimental results indicate that under the design conditions of dual heat and mass transfer coupled HDH desalination system, the total water yield of the HDH desalination unit and the water yield per unit volume of the device can reach 5.3 kg·h -1 and 16.56 kg·m -3 ·h -1 . The water yield of the desalination unit increases by 12.5% first and then decreases by 20.6%, with increasing the seawater mass flow rate. Reducing the air mass flow rate, the water yield of the unit decreases by 9.7%. The water yield of the unit increases by 11.3% due to the application of the gas distributor in the humidifier.

关 键 词：传热传质 加湿除湿 海水淡化 热力学性能 试验 节能 

分 类 号：P747[天文地球—海洋科学]