[1]刘成兴,梁彩华,文先太,等.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.[doi:10.3969/j.issn.1001-0505.2013.04.021]
 Liu Chengxing,Liang Caihua,Wen Xiantai,et al.Modeling of heat and mass transfer in counterflow heat-source tower and feasibility study of moisture condensation control[J].Journal of Southeast University (Natural Science Edition),2013,43(4):788-792.[doi:10.3969/j.issn.1001-0505.2013.04.021]
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逆流热源塔传热传质模型建立与凝水调节的可行性()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第4期
页码:
788-792
栏目:
能源与动力工程
出版日期:
2013-07-20

文章信息/Info

Title:
Modeling of heat and mass transfer in counterflow heat-source tower and feasibility study of moisture condensation control
作者:
刘成兴梁彩华文先太张小松
东南大学能源与环境学院, 南京 210096
Author(s):
Liu Chengxing Liang Caihua Wen Xiantai Zhang Xiaosong
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
热源塔 传质 乙二醇 凝水控制
Keywords:
heat-source tower mass transfer ethylene glycol moisture condensation control
分类号:
TK121
DOI:
10.3969/j.issn.1001-0505.2013.04.021
摘要:
为探讨通过调节运行参数对热源塔内凝水量进行控制的可行性,在建立逆流热源塔内溶液与空气间热质传递数学模型并对其验证的基础上,深入研究了以乙二醇水溶液为工作介质热源塔的入塔空气湿度和入塔溶液温度对塔内凝水量的影响规律.结果表明:当热源塔入塔空气含湿量从4.9 g/kg减小至2.2 g/kg时,塔内凝水量从1.98 g/s减小至-0.40 g/s;当入塔溶液温度从-5 ℃升高到-1 ℃时,塔内凝水量由0.56 g/s减小至-0.07 g/s.通过降低入塔空气湿度或者提高入塔溶液温度,可减少热源塔内凝水量,甚至实现溶液浓度再生,从而为减少系统溶液再生需求,高效解决热源塔热泵的溶液再生问题提供了新思路.
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.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 刘成兴(1986—),男,硕士生;梁彩华(联系人),男,博士,研究员,博士生导师,caihualiang@163.com.
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).
引文格式: 刘成兴,梁彩华,文先太,等.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. [doi:10.3969/j.issn.1001-0505.2013.04.021]
更新日期/Last Update: 2013-07-20