东南大学学报(自然科学版)2013,Vol.43Issue(4):788-792,5.DOI:10.3969/j.issn.1001-0505.2013.04.021
逆流热源塔传热传质模型建立与凝水调节的可行性
Modeling of heat and mass transfer in counterflow heat-source tower and feasibility study of moisture condensation control
摘要
Abstract
To study the feasibility of moisture condensation control in heat-source tower by operating parameter regulation,a mathematic model of heat and mass transfer between air and solution in the counterflow heat-source tower was developed and validated.The effect of the humidity ratio of inlet air and the solution inlet temperature on moisture condensation in the heat-source tower was investigated by using ethylene glycol aqueous solution as work fluid.The results show that the rate of moisture condensation decreases from 1.98 g/s to-0.40 g/s as the humidity ratio of inlet air decreases from 4.9 g/kg to 2.2 g/kg.The rate of moisture condensation decreases from 0.56 g/s to-0.07 g/s with a rise in the solution inlet temperature from-5 ℃ to-1 ℃.The rate of moisture condensation in the heat-source tower decreases with the decrease of the humidity ratio of inlet air and the increase of the solution inlet temperature.And solution's reconcentration can even be realized by heat-source tower itself.It is a new way to reduce the system demand of solution reconcentration and solve the solution reconcentration problem efficiently.关键词
热源塔/传质/乙二醇/凝水控制Key words
heat-source tower/mass transfer/ethylene glycol/moisture condensation control分类
能源科技引用本文复制引用
刘成兴,梁彩华,文先太,张小松..逆流热源塔传热传质模型建立与凝水调节的可行性[J].东南大学学报(自然科学版),2013,43(4):788-792,5.基金项目
国家自然科学基金资助项目(51106023)、"十二五"国家科技支撑计划资助项目(2011BAJ03B14)、江苏省自然科学基金重点资助项目(BK2010029). (51106023)