欢迎来到天天文库
浏览记录
ID:53770268
大小:929.25 KB
页数:6页
时间:2020-04-25
《制冷剂充注量对微通道蒸发器房间空调器性能影响的试验研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第44卷第3期东南大学学报(自然科学版)VO1.44NO.32014年5月JOURNALOFSOUTHEASTUNIVERSITY(NaturalScienceEdition)Mav2014doi:10.3969/j.issn.1001—0505.2014.03.021制冷剂充注量对微通道蒸发器房间空调器性能影响的试验研究张忠斌,杜垲黄虎张敬坤潘亚梅(东南大学能源与环境学院,南京210096)(南京师范大学能源与机械工程学院,南京210042)摘要:在一台3HP分体落地式房间空调器壳体和风机等其他条件不变的情况下,将全铝微通道蒸发器替代铜铝
2、翅片管蒸发器,对不同制冷剂充注量下微通道蒸发器房间空调器的性能以及微通道蒸发器制冷剂配液分布进行了红外成像试验研究.试验结果表明:微通道蒸发器房间空调器随着制冷剂充注量的增加,输入功率小幅上升0.27kW,整机性能在充注量为2.3时达到最优,制冷量和能效比呈现出先增大后减小的趋势,后者较前者由大变小的转变点有所滞后.红外成像结果同步反映出微通道蒸发器分液效果呈现出先变好后变差的趋势.与房间空调器原机铭牌参数相比,最佳充注量试验样机的制冷量增加2.50%,能效比高出2.84%,制冷剂充注量减少9.80%.关键词:制冷剂充注量;红外成像;微通道
3、蒸发器;房间空调器;制冷性能中图分类号:TB657.2文献标志码:A文章编号:1001—0505(2014)03-0567-06Experimentalstudyonimpactofrefrigerantchargeonperformanceofroomairconditionerwithmicro-channelevaporatorZhangZhongbinDuKaiHuangHuZhangJingkunPanYamei(SchoolofEnergyandEnvironment,SoutheastUniversity,Nanjing210
4、096,China)(SchoolofEnergyandMechanicalEngineering,NanjingNormalUniversity,Nanjing210042,China)Abstract:Amicro-channelevaporatorusingaluminumfinswasusedassubstitutionfortraditionalevaporatorusingcoppertubeswithaluminumfinsinasplittypeof3HPfloor-·standingroomaircondi-tioner.
5、Keepingthefansandotherconditionsconsistent,experimentalstudiesonthismodifiedroomairconditionerperformancewithvariousrefrigerantchargeanddifferentrefrigerantdistributioninthemicro-channelswereconductedandvisualizedwiminfraredthermographs.Theresultsshowthatintheairconditione
6、rusingmicro—channelevaporator,withtheincreaseofrefrigerantcharge,thereisami—norincreaseininputpowerof0.27kW.andthetestedunithasthebestperformancewitIlarefrigerantchargeof2.3kg.Meanwhile,thecoolingcapacityandEER(energyeficiencyratio)increasefirstthentendtodecline.withthetur
7、ningpointofEERlaggingbehindthatofcoolingcapacity.Corre—spondinginfraredthermographssynchronouslyshowthetendencyoftheeffectofrefrigerantdistribu—tioninmicro—channels,beingfromgoodtopoorwiththeincreaseofrefrigerantcharge.Incomparisonwithparametersonthenameplateoftheoriginalu
8、nit,theresultsrevealanincreaseof2.50%and2.84%incoolingcapacityandEER,respectively,andadec
此文档下载收益归作者所有