巨小平,崔晓龙
JU Xiao-ping,CUI Xiao-long(Guangzhou Wanbao Group Co.

• 1:广州万宝集团有限公司

摘要(Abstract)：

介绍了一种新型商用跨临界CO2热泵空气干燥系统。首先建立了热泵干燥系统所需的翅片式气冷器的物理和数学模型,对气冷器的换热面积进行了计算,同时根据超临界状态下CO2放热特性对气冷器的结构进行设计。在此基础上,建立了跨临界CO2热泵空气干燥系统,并对该系统进行了性能试验研究。试验结果表明,该系统可将常温空气"一次性"加热到100℃,此种工况下空气流量为2.26 m3/h,系统性能系数COP为3.80。
A commercial transcritical CO2 heat pump air heating system was described in this paper.The physical and mathematical model was build at first for the gas cooler of the heat pump air heating system,the heat exchange area was calculated based on the model,and then the structure of gas cooler was designed according to the heat transfer characteristic of transcritical CO2.The transcritical CO2 heat pump air heating system was designed and a series of experiment for the system were carried out.The experimental results show that the air can be heat to 100 ℃ from room temperature by heat pump air drying system,and the air flow is 2.26 m3/h,the heat-COP is 3.80.

关键词(KeyWords)： 二氧化碳;跨临界循环;加热
CO2;transcritical cycle;drying

Abstract:

Keywords:

基金项目(Foundation): 中国博士后科学基金项目(20070421115);; 广东省产学研项目“二氧化碳热泵关键技术及产业化”(2008A091700002)

作者(Author): 巨小平,崔晓龙
JU Xiao-ping,CUI Xiao-long(Guangzhou Wanbao Group Co.

参考文献(References)：

• [1]Zuhal Oktay,Arif Hepbasli.Performance evaluation ofa heat pump assisted mechanical opener dryer[J].En-ergy Conversion and Mangerment,2003,(44):1193-1207.
• [2]王以清.节能环保型热泵干燥装置[J].能源工程,2000,(5):25-26.
• [3]马一太,魏东,王景刚.国内外自然工质研究现状与发展趋势[J].暖通空调,2003,33(1):41-46.
• [4]Schmidt E L,Klocker K,Flacke N,et al.Applyingthe Transcritical CO2 Process to A Drying Heat Pump[J].Int J Refrig,1998,21(3):202-211.
• [5]Klocker K,Schmidt E L,Steimle F.Carbon Dioxide AsA Working Fluid in Drying Heat Pump[J].Interna-tional Journal of Refrig,2001,(24):100-107.
• [6]张振涛,杨鲁伟,董艳华,等.用于污染热泵干化的带式干燥机热力分析[J].流体机械,2010,38(12):44-48.
• [7]邓之鲸,曹积明,潘德安.板式高压气体吸附式干燥净化装置[J].流体机械,2011,39(5):47-49,39.
• [8]文键.二氧化碳热泵干燥系统的研究[D].西安:西安交通大学,2002.
• [9]Chaobin Dang,Eiji Hihara.Heat transfer coefficient ofsupercritical carbon dioxide[C].Preliminary Proceed-ings of the 5th IIR2Gustav Lorentzen Conference onNatural Working Fluids at Guangzhou[C].2002,(9):17-20,10-107.
• [10]靳遵龙,刘东来,刘敏姗,等.超临界CO2冷却条件下水平微圆管中对流换热特性[J].压力容器,2012,29(7):9-13,78.
• [11]Krasnoshechekov EA,Kuraeva IV,Protopopov VS.Lo-cal heat transfer of carbon dioxide at supercritical pres-sure under cooling conditions[J].Teplofizika VysokikhTemoperatur,1970,7(5):922-930.
• [12]Baskov VL,Kuraeva IV,Protopopov VS.Heat transferwith the turbulent flow of a liquid at supercritical pres-sure in tubes under cooling conditions[J].TeplofizikaVysokikh Temoperatur,1977,15(1):96-102.