空气源热泵误除霜事故预测与英文

Thepredictionandanalysisformal-defrostofASHP创新实验创新实验AsianAir-SourceHeatPumpDevelopmentForum·China2013创新实验创新实验Contentlist123IntroductionAnalysisoffrostinganddefrostingTestsystem45Conclusion5Themal-defrostcharacteristics创新实验创新实验

FrostingisancommonphenomenonforASHPinwinterTheexperimentalresultsofBrianetal.indicatethatafrostlayeronasurfacecanreducetheheatfluxbyabout40%.AccordingtoSandersresults,theperformanceofASHPunitisdecreasedby35%underfrostingconditions.InthepreviousstudyofW.WangetaltheheatingcapacityoftheASHPwilldecrease29%

whentheoutdoorheatexchangeriscoveredbyfrost.1Introduction创新实验创新实验

DefrostingisneededforASHPinwinterIdealconditionDefrostbasedondemandRealconditionMal-defrost1Introduction创新实验创新实验Mal-defrostThe“Mal-defrostphenomena”arethedefrostingoperations,whicharecarriedoutalongtimeaftera‘‘critical’’leveloffrostinghasbeenreached,oroccurwhentheyarenotnecessary.DefinitionOriginsofMal-defrostDefroststrategyMal-defrostisinevitableIntelligentapproachFrostingBy-productsFrostingconditionsOriginsofMal-defrostDirectmethodMicrometerMicroscopeTwallCleanlinessTaVaφaWettabilityVariationofTeMrQTwall△PANNDefroststrategy(“Temperature-Time”)

Air-sourceheatpumpManufacturerStartingparametersTerminatingparametersManufacturer1tc,TtcManufacturer2tf,ta,Ttf

Manufacturer3tf,TtfManufacturer4tc,ta,Ttctc–

Coiltemperature,tf

–

Fintemperature,T–time,

ta–ambienttemperature

创新实验创新实验Time(min)Time(min)Time(min)Mal-defrostNormaldefrostTheexperimentalresultsofProf.MaandDr.Hanetal(HarbinInstituteofTechnology)showthatthecondensersidebearssuperhighpressureintheMal-defrost,whichalsocausesgreatshockforthecondenserandrelatedpipes,andfinallyleadshighpressureprotectiontotheunit.PreviousStudyofMal-defrostTheshaftpowerofcompressorThesuctionpressureofcompressorTheexhaustpressureofcompressorPPWPreviousStudyofMal-defrost2AnalysisoffrostinganddefrostingTaTd>Tf<0oC;Td;φaTa-Tf≈10oC2Analysisoffrostinganddefrosting2An横al国ys汪is沾o璃f际fr国os度ti耍ng际a爆nd堆d处ef晌ro后st竞in稼g2An暴al墙ys语is庄o须f葱fr逮os鲜ti膨ng滚a愁nd皮d环ef避ro认st权in只gSi惨mu暑la超ti询ng事r东es友ul竞ts2An组al阵ys速is魔o齿f必fr暂os狗ti俊ng亏a办nd括d钟ef煮ro哪st社in晨gcityHeatingseasoncityHeatingseasonBeijing11/15-3/15Shanghai12/1-3/15Tianjin11/15-3/15Hangzhou12/1-3/15Shijiazhuang11/15-3/15Nanjing11/15-3/15Jinan11/15-3/15Wuhan11/15-3/15Zhengzhou11/15-3/15Chengdu12/1-3/15Xi’an11/15-3/15Chongqing12/1-2/28Yinchuan11/1-3/31Nanchang12/1-3/15Taiyuan11/1-3/31Changsha11/15-3/15Xining10/20-4/2Fuzhou1/15-2/15Hefei12/5-3/5Guiyang11/15-1/28Lanzhou11/1-3/312An祝al证ys常is饶o她f养fr守os耗ti太ng律a绑nd药d债ef砖ro吨st报in醒g2An询al便ys乡丰is地o强f弃fr骆os怪ti孩ng虹a资nd旗d负ef晴ro苦st滋in栗g2An犹al蜘ys贺is复o呆f糕fr锻os驻ti以ng猛a朗nd江d润ef趴ro模st予in慢g2An黎al还ys皆is畜o宰f荒fr追os田ti执ng召a明nd汽d雅ef谅ro暖st粉in梦g2An粥al罗ys悄is裳o掌f闹fr间os做ti肃ng嗓a租nd污d欧ef房诚ro具st售in扎gCitiesSlightfrostareaNofrostareaTotalBeijing13.4%54.5%67.9%Tianjin13.3%26.3%39.6%Yinchuan16.1%32.9%49%Shijiazhuang16.9%35.4%52.3%Taiyuan14.6%39.5%54.1%Jinan16.7%36.7%53.4%Xining16.4%35.4%51.8%Lanzhou22.2%25.4%47.6%Zhengzhou9.6%25.6%35.2%Xi,an11.6%14.1%25.7%2An状al抚ys待is竹o除f棍fr泼os削ti额ng唉a只nd令d很ef勒ro敬st末in额g2An煌al圣ys装is露o斜f谨fr要os烘ti趴ng壁a安nd挠d赞ef输ro倘st脸in属g2An脾al沿ys叶is薯o城f粱fr蚕os记ti万ng昏a希nd调d掘ef行ro型st械in绘g2An映al净ys波is欢o梳f旷fr胆os吗ti靠ng智a目nd弯d乒ef抗ro店st五in亚gCitiesHeavyfrostareaCitiesHeavyfrostareaNanjing50.2%Chongqing52.2%Hefei52.2%Nanchang48.7%Shanghai43.9%Changsha61.6%Hangzhou48.1%Fuzhou41.7%Wuhan48.3%Guiyang62.3%Chengdu66.7%2An酱al敞ys蠢is宁o念f耳fr弃os闭ti惰ng夫a亏nd舒d属ef赌ro梯st私in桨gAi葱m僚of龄t秆hi杏s窄st享ud崇yTo瓣s嘱pe恩ci顿fy返t揭he那c牲ha弹ra傍ct箱er煌is午ti悉cs打o煮f课th元e番ai肯r觉so鞠ur鲁ce每h溜ea光t赛pu共mp顶(安AS枕HP敬)依un搞de棍r潮ma岔l-裁de熟fr腹os戏t护ph股en预om咏en括a(un集ne孙ce刘ss遭ar刻y息de欧fr随os社t)用ex伐pe境ri行me作nt框al策ly扯.碰An女d妥es葡ti飘ma悠ti室ng全t谋he刺m张al睁-d咐ef若ro律st覆w岭as骗ta眨ge粥i弟n秧so情me漏r呜ep洽re叼se颈nt贱at柿iv四e冰ci骂ti吩es腥.1Nofrostarea2Slightfrostarea3Heavyfrostarea3Te统st浸s绣ys扒te饶mTe厦st授l效oc访at拨io颤n:竭B布ei栗J季in税gHe鸡at途in麦g畜ar县ea妄:庭18榜5挖m2No迷mi撇na脂l挖he受at鸽in盐g搬ca傍pa阅ci惜ty净:吃28势k耕WIn好pu籍t划el啦ec薪tr协ic参p咽ow和er麻:绞8.弃7柿kWTw荷o狭sc搬ro败ll种c榜om落pr备es锡so业rs夫:co头ns尼ta耕nt伤s询pe组ed黑c懒om插pr哨es纺so缺rsTe结st桑in闲g押pe暮ri哭od20蔑12挂-2孝01虹3Te芳st谷sy辱st第em福ITh厨e舒in跳it球ia胸ti蹦on恨o论f喊a编de堡fr脚os笔t崭cy匪cl仆eCo扰il石t荷em盗pe涝ra什tu脉re画.Ti疫me足f立or取h恶ea沾ti那ng号c勒yc羊le成.Th且e唱te晕rm炼in其at慌io即n菜of然a虽d泡ef可ro饿st规c但yc久leTh存e荐te螺rm避in煤at拦io间n睬of箭t奏he圈d真ef闪ro吗st截c郑yc园le封i海s昼de岩ci团de懒d宫wh滨en殖t科he她c舅oi愿l青te站mp烫er塌at霞ur笼e拘re侨ac访he齿s巾20oCDe疑fr粪os小t腾St赠ra薄te魂gy3Te趟st欢s换ys仰te棵m3Te立st共s桨ys压te问mTe赶st梳sy姻st谁em孔I萌I3Te蕉st旨s阵ys夏te唇mTe共st工sy遮st杯em雪I现ITh忠e且in战it两ia飞ti豆on盼o仔f伶a毅de唇fr迫os湾t菠cy悦cl延eFi兆n荣te阳mp优er单at否ur平e.Va妹ri炕at尺io也n来ra熔te炉o业f稳fi鹿n菊te造mp骂er很at怀ur淘e.En毒vi踪蝶ro坑nm嚷en华ta因l存te痰mp羞er甘at应ur趟e.(B节el叙ow缓5oC)Di你ff事er篇en怎ce侵b沿et滥we肉en范t更he奴f谈in仅a热nd绞e参nv虏ir杆on吧me吊nt胃al寸t盒em汁pe夺ra引tu掠re谱.Ti踩me弱f栋or夏h耳ea双ti仪ng趋c净yc宫le邮.Th炸e屋te昼rm太in惜at掘io耍n学of凉a选d失ef贤ro构st建c籍yc竹leTh鸣e亲te泰rm靠in岛at闹io朽n需of来t梦he园d胳ef栋ro熟st谷c顷yc燃le雄i厌s殖de容ci隙de汪d眨wh叫en衫t庆he勤f葡in忍t让em梳pe陡ra夺tu逝re粒r疾ea铃ch箱es坟1揪5oCDefrostStrategyMo优di喂fi提ed后t种em意pe南ra眠tu伟re翼-t秩im郊e向me榨th时odAm骨bi跨en枝t斤te石mp腹er回at捕ur守e谋-跌0.盾4oC~停5.事4oC.栋Th角e淘av啦er乏ag着e句is纽奉3或.3oCAm采bi显en冒t饰hu味mi禁di窑ty带2泳4%工~3耕7.则2%勾.局T悲he吹a罚ve背ra腔ge洒i禁s津28棵.4熄%“N洋o晒fr概os挂t丈ar页ea盗”4Th垃e讨ma险l-惑de疮fr方os丧t押ch搅ar晃ac允te策ri以st畏ic础s4Th直e茫ma轰l-均de蹈fr奔os冒t袋ch利ar擦ac叫te越ri消st麦ic木s“N跑o艰fr葵os旁t淘ar恢ea霉”Resultcycle

（min）（kW）（min）（min）

（kJ）Average（kJ）145.111.31.20.71738.61516.5245.111.31.20.61491.9345.011.31.10.61439.6445.011.31.00.71395.8Th历e符av惕er磁ag搂e票:俭1疾51拔6.悠5趣(k却J)He坚at密in稳g颤ar倚ea充:贸18谈5障m2En境er枪gy番l哀os榜t绘fo常r肢ea猫ch栏M识al饲-d仙ef吊ro异st狸:隔15妖16赚.5家/1明85虏=诊8勉.2聋kJ芝/盏m24Th毯e埋ma返l-爷de靠fr案os棍t奇ch盆ar尺ac检te敌ri善st牺ic夺s“N第o眠fr宽os圣t像ar正ea班”Am恭bi国en职t慈te腥mp拢er宁at眠ur毁e拖-绢0.影6oC~袋1.艳6oC.窃T子he许a蹲ve牧ra盗ge返i代s蚕0.叔4oCAm老bi书en信t爸hu兔mi贸di胸ty嚷45勒.1弃%~超52奔.2撤%.锹T平he冲a棒ve燥ra削ge蜜i师s直48贼.5仇%“S栏li认gh羽t便fr抵os抗t潮ar落ea笋”4Th愚e虚ma配l-债de质fr除os动t碍ch秒ar步ac那te般ri污st支ic养s“S稼li速gh横t概fr应os窃t捆ar响ea外”4Th塔e支ma城l-永de特fr乳os灿t慰ch童ar趁ac税te浅ri涂st痰ic熔sresultcycle

（min）（kW）（min）（min）

（kJ）Average（kJ）145.111.81.80.72570.82192.9245.211.81.70.62205.1345.211.81.70.71980.7445.111.81.60.72014.9Th相e涌av崖er唱ag遍e扔:帽2真19穷2.爬9缓(k奋J)He仗at响in翁g喝ar做ea春:泽18谈5捎m2On富ce脱m建al鞠-d脑ef柳ro爪st兴w怕as玻ta脚ge火e烂ne历rg龟y:灰2粮19鲜2.煎9/数18骨5远=熄11与.8柱kJ弦/脏m2“S乱li瘦gh滨t虽fr探os位t俩ar怖ea医”4Th弃e净ma警l-园de扶fr阁os豆t世ch证ar汤ac的te轻ri雾st卸ic廉sDefrosttimesMal-defrostTimes(unnecessarydefrost)Mal-defrostpercentageExperimentaldata1858131171%Estimateddata1900132867%Deviation+2.3%+1.3%-5.7%4Th污e蚊ma者l-歌de薪fr状os炼t桃ch削ar者ac皮te度ri椅st蚁ic碑s4Th障e昌ma碧l-呆de旋fr甜os氏t缘瑞ch洲ar病ac主te地ri杨st猾ic勿s“H帮ea厌vy牙f尘ro赛st宋a湾re镜a”4Th踪蝶e灶ma尼l-楚de轧fr取os京t应ch感ar秧ac溉te针ri除st远ic馋s4Th巾e领ma边l-芦de竖fr愁os煌t叮ch延ar弊ac加te附ri周st司ic图s“H腐ea干vy缎f窑ro河st确a象re渣a”4Th汽e既ma畅l-小de招fr赤os开t后ch怀ar组ac睁te仓ri截st邀ic府s“H盯ea侦vy就f廊ro燃st贫a健re剂a”4Th穷e御ma揉l-并de句fr佛os允t昨ch塘ar传ac氏te脂ri茄st的ic壶s“H统ea屡vy走f气ro竖st相a兴re迈a”ExperimentalconditionsHeatingloss(KJ/h)Heatingloss(KJ/h·m2)Averageheatingloss(KJ/h·m2)113924.275.375.5218483.399.934623262411955.464.6Pr木ev餐io藏us讯s桑tu清di抢es4Th汽e煎ma季l-雅de可fr钥os招t财ch公ar跟ac混te挣ri咬st观ic屯s4Th扰e纱ma槽l-因de怪fr呢os骑t肆ch姐ar雹ac资te灰ri薯st蛋ic执sTaTd>Twa捐ll<杜0oC;Td;φaTa-票Twa话ll≈1袜0oCDi扇sc雀us甩si涝onTh简e议‘‘翼Ma踪蝶l-扩de蹲fr趴os趴t运p诸he单no抄me跳na鬼’’染a距re找t亏he谁d退ef吨ro诸st泉in互g酷op戚er尤at伐io拢ns熊,虹wh易ic呜h柿ar妄e是ca宣rr牲ie穿d跃ou倘t冰a纲lo秒ng但t钻im聪e臣af孤te童r逝a裹‘‘臂cr府it聚ic志al钱’’镇l仁ev孟el摩o拣f任fr近os兴ti从ng僻h诞as顶b击ee合n停re柿ac靠he膜d术,畅or个o裁cc驴ur情w煌he痒n钥th委ey扁a制re塌n冠ot蝴n榆ec获es荒sa动ry粒.Ma端l-阁de孩fr群os恒t侄is搭i袖ne霜vi梯ta胖bl促e援as们l军on稀g骂as冲t芦he锡d升ef否ro妥st箩s兄tr京at缘瑞eg晕y嗽is意d茄ec籍id匆ed垫b准y惩in创di肠re凑ct绘i妹nf蜂or墙ma隙ti单on扰.5Co予nc俘lu轻si描onSo饮,追a便ne壮w葡wa哀y(帽Me册as绸ur鼓in脆g导th专e叙th辣ic桨kn击es骡s育of迟fr酷os骡t渡di副re等ct稀ly泰)象sh革ou顺ld巷b衬e蒙pa翻