基于中高温冷凝热再生的溶液再生器模拟
|
摘要
为探究不同入口参数对溶液除湿再生量的影响,提出一种溶液除湿与中高温热泵耦合的空调系统,将中高温热泵的冷凝热应用于溶液除湿空调系统的溶液再生。通过建立溶液除湿再生器仿真计算模型,研究了不同入口溶液和空气参数下溶液出口浓度和再生器内温度分布情况,并与中低温冷凝热再生进行对比。结果表明:随着空气入口侧风量、溶液入口侧温度、溶液入口侧流量的增加再生量呈上升趋势;随溶液入口侧浓度的增加再生量呈下降趋势;在80℃附近的冷凝热溶液再生量比40℃时高1. 5～1. 9 g/s。
In order to explore the influence of different inlet parameters on the regeneration of liquid desiccant dehumidification,an air conditioning system coupled with medium-high temperature heat pump was proposed. The condensation heat of medium high temperature heat pump was applied to the solution regeneration of solution dehumidification air conditioning system. The solution outlet concentration and the temperature distribution in the regenerator under different inlet solution and air parameters were studied by establishing the simulated computing model of the liquid desiccant dehumidification regenerator,and the results were compared with those of the medium-low temperature condensing heat regeneration. The results show that with the increase of the concentration at the inlet side of the solution,the regeneration capacity show a decreasing trend. The regenerative capacity of condensation heat solution at 80 ℃ is 1. 5 ～ 1. 9 g/s higher than that at 40 ℃.
In order to explore the influence of different inlet parameters on the regeneration of liquid desiccant dehumidification,an air conditioning system coupled with medium-high temperature heat pump was proposed. The condensation heat of medium high temperature heat pump was applied to the solution regeneration of solution dehumidification air conditioning system. The solution outlet concentration and the temperature distribution in the regenerator under different inlet solution and air parameters were studied by establishing the simulated computing model of the liquid desiccant dehumidification regenerator,and the results were compared with those of the medium-low temperature condensing heat regeneration. The results show that with the increase of the concentration at the inlet side of the solution,the regeneration capacity show a decreasing trend. The regenerative capacity of condensation heat solution at 80 ℃ is 1. 5 ～ 1. 9 g/s higher than that at 40 ℃.
引文
1郝红,张于峰,周国兵.转轮与中高温热泵耦合空调系统可行性研究[J].沈阳建筑大学学报(自然科学版),2008,24(4):675-678Hao Hong,Zhang Yufeng,Zhou Guobing.Feasibility study on coupled air-conditioning system of runner and medium-high temperature heat pump[J].Journal of Shenyang Jianzhu University(Natural Science),2008,24(4):675-678
2 Patnaik S,Lenz T G,L9f G O G.Experimental studies with a solar open-cycle liquid desiccant cooling system[J].Advances in Solar Energy Technology,1988,49(6):1013-1018
3李春林.液体除湿系统研究与应用[D].西安:西北工业大学,2006Li Chunlin.Research and application of liquid dehumidification system[D].Xi'an:Northwestern Polytechnical University,2006
4方承超,孙克涛.太阳能液体除湿空调系统模型的建立与分析[J].太阳能学报,1997(2):128-133Fang Chengchao,Sun Ketao.Establishment and analysis of solar liquid desiccant air conditioning system model[J].Acta Energiae Solaris Sinica,1997(2):128-133
5张涛.真空条件下溶液再生机理研究[D].天津:天津商业大学,2013Zhang Tao.Study on regeneration mechanism of solution under vacuum conditions[D].Tianjin:Tianjin University of Commerce,2013
6牛润萍.冷凝热再生式溶液除湿空调系统研究[D].天津:天津大学,2008Niu Runping.Study on liquid dehumidification air conditioning system with condensing heat regeneration[D].Tianjin:Tianjin University,2008
7周俊杰,徐国权,张华俊.FLUENT工程技术与实例分析[M].北京:中国水利水电出版社,2013Zhou Junjie,Xu Guoquan,Zhang Huajun.FLUENT Engineering Technology and Example Analysis[M].Beijing:China Water&Power Press,2013
8罗磊,张小松,殷勇高.叉流填料再生器中传热传质系数的实验研究[J].工程热物理学报,2008,29(7):1215-1217Luo Lei,Zhang Xiaosong,Yin Yonggao.Experimental study on heat and mass transfer coefficient in cross-flow filler regenerator[J].Journal of Engineering Thermophysics,2008,29(7):1215-1217
9陈敬东.水平管降膜流动形态的数值模拟与实验研究[D].北京:北京建筑大学,2014Chen Jingdong.Numerical simulation and experimental study on falling film flow pattern of horizontal pipe[D].Beijing:Beijing University of Architecture,2014
10孙帮成.ANSYS FLUENT14.0仿真分析与优化设计[M].北京:机械工业出版社,2014Sun Bangcheng.ANSYS FLUENT14.0 simulation analysis and optimization design[M].Beijing:Machinery Industry Press,2014
11周俊波,刘洋.FLUENT 6.3流场分析从入门到精通[M].北京:机械工业出版社,2012Zhou Junbo,Liu Yang.FLUENT 6.3 analysis of fluid flow from the entry to the master[M].Beijing:Machinery Industry Press,2012
12 Patankar S V,Spalding D B.A calculation procedure for heat,mass and momentum transfer in three-dimensional parabolic flows[J].International Journal of Heat&Mass Transfer,1972,15(10):1787-1806
13张立志.除湿技术[M].北京:化学工业出版社,2005Zhang Lizhi.Dehumidify[M].Beijing:Chemical Industry Press,2005
2 Patnaik S,Lenz T G,L9f G O G.Experimental studies with a solar open-cycle liquid desiccant cooling system[J].Advances in Solar Energy Technology,1988,49(6):1013-1018
3李春林.液体除湿系统研究与应用[D].西安:西北工业大学,2006Li Chunlin.Research and application of liquid dehumidification system[D].Xi'an:Northwestern Polytechnical University,2006
4方承超,孙克涛.太阳能液体除湿空调系统模型的建立与分析[J].太阳能学报,1997(2):128-133Fang Chengchao,Sun Ketao.Establishment and analysis of solar liquid desiccant air conditioning system model[J].Acta Energiae Solaris Sinica,1997(2):128-133
5张涛.真空条件下溶液再生机理研究[D].天津:天津商业大学,2013Zhang Tao.Study on regeneration mechanism of solution under vacuum conditions[D].Tianjin:Tianjin University of Commerce,2013
6牛润萍.冷凝热再生式溶液除湿空调系统研究[D].天津:天津大学,2008Niu Runping.Study on liquid dehumidification air conditioning system with condensing heat regeneration[D].Tianjin:Tianjin University,2008
7周俊杰,徐国权,张华俊.FLUENT工程技术与实例分析[M].北京:中国水利水电出版社,2013Zhou Junjie,Xu Guoquan,Zhang Huajun.FLUENT Engineering Technology and Example Analysis[M].Beijing:China Water&Power Press,2013
8罗磊,张小松,殷勇高.叉流填料再生器中传热传质系数的实验研究[J].工程热物理学报,2008,29(7):1215-1217Luo Lei,Zhang Xiaosong,Yin Yonggao.Experimental study on heat and mass transfer coefficient in cross-flow filler regenerator[J].Journal of Engineering Thermophysics,2008,29(7):1215-1217
9陈敬东.水平管降膜流动形态的数值模拟与实验研究[D].北京:北京建筑大学,2014Chen Jingdong.Numerical simulation and experimental study on falling film flow pattern of horizontal pipe[D].Beijing:Beijing University of Architecture,2014
10孙帮成.ANSYS FLUENT14.0仿真分析与优化设计[M].北京:机械工业出版社,2014Sun Bangcheng.ANSYS FLUENT14.0 simulation analysis and optimization design[M].Beijing:Machinery Industry Press,2014
11周俊波,刘洋.FLUENT 6.3流场分析从入门到精通[M].北京:机械工业出版社,2012Zhou Junbo,Liu Yang.FLUENT 6.3 analysis of fluid flow from the entry to the master[M].Beijing:Machinery Industry Press,2012
12 Patankar S V,Spalding D B.A calculation procedure for heat,mass and momentum transfer in three-dimensional parabolic flows[J].International Journal of Heat&Mass Transfer,1972,15(10):1787-1806
13张立志.除湿技术[M].北京:化学工业出版社,2005Zhang Lizhi.Dehumidify[M].Beijing:Chemical Industry Press,2005