梁才航;
LIANG Cai-hang1,2(1.Guilin University of Electronic Technology,Guilin 541004,China;2.Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry,School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China)

• 1:桂林电子科技大学
• 2:华南理工大学化学与化工学院传热强化与过程节能教育部重点实验室

摘要(Abstract)：

利用透湿膜设计制造了一台平行流道结构的全热换热器,并在焓差实验室对其进行性能测试。试验研究了室内侧的干球温度27℃,湿球温度19℃的条件下,迎面风速变化、新风温度变化、新风相对湿度变化时对全热换热器的显热效率、潜热效率、阻力的影响。实验研究表明,在较高的迎面风速的条件下,全热换热器仍然具有较高的显热效率和潜热效率。显热效率和潜热效率分别在70%～85%和60%～75%之间。温度和湿度变化对显热效率的影响很小,而对潜热效率的影响很大。随着新风的温度和相对湿度的增大,潜热效率也随着增大。在炎热潮湿的气候条件下,基于高分子透湿膜的全热回收器具有较高的显热效率和潜热效率,表明了这种换热器在南方地区具有较好的应用前景。
A parallel-structure total heat recovery is fabricated and designed with PVDF membrane.Experiments are conducted under variable operating conditions in the psychrometric calorimeter chamber.The effects of varying operating conditions like air velocity,temperature and air humidity on the sensible effectiveness,latent effectiveness and pressure drop are evaluated with indoor exhaust air dry bulb 27 ℃,wet bulb 19 ℃.The membrane-based total heat recovery has a high sensible and latent effectiveness under high air velocity.The sensible and latent effectiveness are 70%~85% and 60%~75%,respectively.The fresh air temperature and relative humidity have little effect on sensible effectiveness.However,the fresh air temperature and relative humidity have a great effect on latent effectiveness.The latent effectiveness increases with an increase of the fresh air temperature and relative humidity.The membrane-based total heat recovery has a high sensible and latent effectiveness under hot and humid condition.The results show that the membrane-based total heat recovery has a promise in south China.

关键词(KeyWords)： 全热回收器;透湿膜;平行流;试验研究
total heat recovery;permeable membrane;parallel;experiment

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51106032);; 广西科技开发项目(11107020-11);; 广西自然科学基金项目(2012GXNSFAA053197)

作者(Author): 梁才航;
LIANG Cai-hang1,2(1.Guilin University of Electronic Technology,Guilin 541004,China;2.Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry,School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China)

Email:

DOI:

参考文献(References)：

• [1]广东省统计局.2008年广东省电力消费增速大幅回落原因分析[EB/OL].http://www.hzsin.gov.cn/ReadNews.asp NewsID=3932,2009年6月2日.
• [2]Zhang L Z.Progress on heat and moisture recovery withmembranes:from fundamentals to engineering applica-tions[J].Energy Conversion and Management,2012,63(11):173-1195.
• [3]Zhang L Z,Liang C H,Pei L X.Heat and moisturetransfer in application scale parallel-plates enthalpyexchangers with novel membrane materials[J].Journalof Membrane Science.2008,325(1-2):672-682.
• [4]Murat G,Süer,N B,Li Y.Gas permeation characteris-tics of polymer-zeolite mixed matrix membranes[J].Journal of Membrane Science,1994,91(1-2):77-86.
• [5]Wang K L,Mccray S H,Newbold D D.Hollow fiberair drying[J].Journal of Membrane Science,1992,72(3):231-244.
• [6]Zhang L Z,Liang C H,Pei L X.Conjugate heat andmass transfer in membrane-formed channels in all en-try regions[J].International Journal of Heat MassTransfer,2010,53(5-6):815-824.
• [7]Zhang L Z.Flow maldistribution and thermal perform-ance deterioration in a cross-flow air to air heat ex-changer with plate-fin cores[J]..International Jour-nal of Heat Mass Transfer,2009,52(19-20):4500-4509.
• [8]张新儒,张立志,裴丽霞.非对称除湿膜的传质性能研究[J].工程热物理学报,2011,32(8),1382-1384.
• [9]Zhang L Z,Wang Y Y,Wang C L,et al.Synthesis andcharacterization of a PVA/LiCl blend membrane for airdehumidification[J].Journal of Membrane Science,2008,308(1-2):198-206.
• [10]Zhang L Z,Liang C H,Pei L X.Heat and moisturetransfer in application-scale parallel-plates enthalpyexchangers with novel membrane materials.Journal ofMembrane Science,2008,325(12):672-682.
• [11]梁才航.膜法全热回收的制冷除湿系统的数值模拟与实验研究[D].广州:华南理工大学,2010.
• [12]夏学鹰,张旭,王子介,等.差流膜法除湿器的分析[J].流体机械,2010,38(10):81-84,93.
• [13]武小娟,孙民.R410A冷媒除湿机用压缩机关键技术[J].流体机械,2011,39(7):56,86-89.
• [14]尉雷,刘庆锁,杨婴,等.一种高压空气淬炉中节能型鳍片换热器[J].压力容器,2012,29(8):69-72.