排灌机械工程学报
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排灌机械工程学报  2012, Vol. 30 Issue (1): 64-68    DOI: 10.3969/j.issn.1674-8530.2012.01.013
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热泵空调机组水循环流动特性的试验研究
童明伟, 胡鹏, 孙亚辉, 王茜, 于佳佳
(重庆大学低品位能源利用技术及系统教育部重点实验室, 重庆 400030)
Experimental study on flow characteristics of water cycle in air conditioning heat pump unit
TONG Ming-Wei, HU Peng, SUN Ya-Hui, WANG Qian, YU Jia-Jia
(Key Laboratory of Lowgrade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China)
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摘要 针对现有热泵机组空调系统能耗高,舒适度低的问题,提出了由多孔介质柠檬酸钾-石膏配制而成的毛细吸液芯辐射冷却顶板,在用水作冷却介质时毛细吸液芯辐射冷却顶板就成了一块内含多孔介质的均布流道.对毛细吸液芯辐射冷却顶板和传统的蛇形辐射换热盘管内部阻力进行了试验研究,在流量为4~40 L/h变化时,比较分析了毛细吸液芯辐射冷却顶板和传统的蛇形辐射换热盘管的阻力,并利用ICP-Optional Emission Spectrometer对循环水在毛细吸液芯辐射冷却顶板内部运行1 200 h的钙离子质量浓度进行了测试.试验结果表明:当流量小于17 L/h时,毛细吸液芯多孔介质的渗透率较低,导致流体在辐射板中流动时阻力损失较大;当流量大于17 L/h时,流体在辐射板中流动时的摩擦因子较小,在辐射板中由惯性力引起扰动造成的阻力损失小于蛇形管中的扰动损失,多孔介质对水的渗透率较大,导致流体在辐射板中流动时阻力小于蛇形管中流动阻力;钙离子质量浓度在运行360 h之后趋于稳定,能够满足循环水在热泵机组中的长期使用.
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童明伟
胡鹏
孙亚辉
王茜
于佳佳
关键词热泵机组   毛细吸液芯辐射冷却顶板   流动特性   阻力   循环水     
Abstract: A new ceiling cooling panel of capillary porosity wick(CCPCPW) which was configured by porous media of potassium citrategypsum was put forward to reduce high energy consumption and improve comfort of the air conditioning heat pump unit.In this case,when water is cooling the medium,CCPCPW behaves like a uniform channel.In the paper,the flow resistance in CCPCPW and the serpentine radiant heat transfer pipes(SRHTP) was studied by experiment.A comparison of resistance between CCPCPW and SRHTP was made when the flow rate of cooling water was ranged in 4-40 L/h; moreover,the Ca2+ concentration in circulating water were tested by the ICPOptional Emission Spectrometer in CCPCPW when the unit was run for 1 200 hours.The results showed that the lower permeability of CCPCPW leads to a larger resistance compared to SRHTP when the flow rate is less than 17 L/h.However,when the flow rate is larger than 17 L/h,the larger permeability of CCPCPW results in a lower flow resistance compared to SRHTP.This suggests the inertial force by the disturbance of CCPCPW is smaller than SRHTP,and the friction factor of CCPCPW is smaller.After running for 360 hours,the Ca2+ concentration has been stable to make sure the recirculation water can be used for a long period of time in the air conditioning system.
Key wordsheat pump unit   ceiling cooling panel of capillary porosity wick   flow characteristics   resistance   circulating water   
收稿日期: 2011-05-16; 出版日期: 2012-01-30
基金资助:

重庆市科委重点攻关项目(2009AB3084); 重庆大学211工程“三期建设”项目(S-09101)

通讯作者: 童明伟(1945—),男,重庆沙坪坝人,教授,博士生导师(tmw1016@163.com),主要从事传热传质、制冷与低温研究.   
作者简介: 胡鹏(1985—),男,四川遂宁人,博士研究生(hupeng1612@hotmail.com),主要从事制冷与低温研究.
引用本文:   
童明伟,胡鹏,孙亚辉等. 热泵空调机组水循环流动特性的试验研究[J]. 排灌机械工程学报, 2012, 30(1): 64-68.
TONG Ming-Wei,HU Peng,SUN Ya-Hui et al. Experimental study on flow characteristics of water cycle in air conditioning heat pump unit[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(1): 64-68.
 
[1] 参考文献(References)
[2] 刘学强,闫晓,肖泽军.多孔介质内单相流阻力特性[J].核动力工程,2009,30(5):40-43.
Liu Xueqiang,Yan Xiao,Xiao Zejun.Resistance characteristics of singlephase flow through porous media[J].Nuclear Power Engineering,2009,30(5):40-43.(in Chinese)[LL]
[3] Mahjoob S,Vafai K.Analytical characterization of heat transport through biological media incorporating hyperthermia treatment[J].International Journal of Heat and Mass Transfer,2009,52(5/6):1608-1618.
[4] Edimilson J B,Marcelo J S.Laminar and turbulent free convection in a composite enclosure[J].International Journal of Heat and Mass Transfer,2009,52(3/4):588-596.
[5] Garau M,Morin P,Zuppa C.Convergence of an adaptive Kacanov FEM for quasilinear problems[J].Applied Numerical Mathematics,2011,61(4):512-529.
[6] Delete M A,Schenk A,Tijskens E.Optimization of the humidification of cold stores by pressurized water atomizers based on a multiscale CFD model[J].Journal of Food Engineering,2009,91(2):228-239.
[7] 胥蕊娜,姜培学,李勐,等.微细多孔介质中流动及换热实验研究[J].工程热物理学报,2006,27(l):103-105.
[8] Xu Ruina,Jiang Peixue,Li Meng,et al.Experimental investigation of internal heat transfer in sintered microporous media[J].Journal of Engineering Thermophysics,2006,27(1):103-105.(in Chinese)
[9] 葛凤华,于秋生,胡自成.管网特性对水泵变流量运行能耗的影响[J].排灌机械工程学报,2011,29(3):266-271.
Ge Fenghua,Yu Qiusheng,Hu Zicheng.Influences of pipe network on energy consumption of variable flow pump [J].Journal of Drainage and Irrigation Machinery Engineering,2011,29(3):266-271.(in Chinese)
[10] Pedras M H.Thermal dispersion in porous media as a function of the solidfluid conductivity ratio[J].International Journal of Heat and Mass Transfer,2008,51(21/22):5359-5367.
[11] 金文,张鸿雁,何文博.多孔介质壁面条件下微尺度流动的数值模拟[J].排灌机械工程学报,2010,28(3):271-278.
Jin Wen,Zhang Hongyan,He Wenbo.Numerical simulation for microscale flow field with porous medium model[J].Journal of Drainage and Irrigation Machinery Engineering,2010,28(3): 271-278.(in Chinese)
[12] Tobis J.A hybrid method of turbulent flow modelling in packings of complex geometry[J].Chemical Engineering Science,2008,63(10):2670-2681.
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