(空調(diào)表冷器降溫除濕能力圖.docx)
空調(diào)表冷器降溫除濕能力圖*同濟(jì)大學(xué)宋旭☆朱彤深圳市中鼎空調(diào)凈化有限公司莊迪君王春生姚博摘要針對(duì)傳統(tǒng)空調(diào)設(shè)計(jì)方法中空氣狀態(tài)參數(shù)僅依賴焓濕圖而與空氣調(diào)節(jié)設(shè)備能力脫節(jié)的問(wèn)題,給出了針對(duì)不同空調(diào)表冷器的降溫除濕能力圖。該圖不僅可以反映常規(guī)焓濕圖所反映的室內(nèi)空氣干球溫度、含濕量、相對(duì)濕度、比焓等狀態(tài)參數(shù),還可以反映某一型號(hào)空調(diào)表冷器的顯熱負(fù)荷和潛熱負(fù)荷處理能力,從而可以方便地顯示空調(diào)末端的整個(gè)空氣調(diào)節(jié)過(guò)程,并可以確定某一型號(hào)空調(diào)表冷器在不同室內(nèi)空氣熱濕負(fù)荷下處理室內(nèi)空氣的穩(wěn)定工況點(diǎn)。關(guān)鍵詞表冷器焓濕圖降溫除濕能力圖溫濕度調(diào)節(jié)熱濕負(fù)荷CoolinganddehumidificationcapacitychartofsurfaceaircoolerforairconditioningunitsBySongXu★,ZhuTong,ZhuangDijun,WangChunshengandYaoBoAbstractAccordingtotheproblemofindoorairconditioncharacterizedbythetraditionalpsychrometricchartandindependentoftheabilitiesoftheairconditioningunitintraditionalairconditioningdesignmethod,givesoutthecoolinganddehumidificationabilitychartfordifferentsurfaceaircoolers.Thischartsharesseveralparameterssuchasdry-bulbtemperature,moisture,relativehumidityandspecificenthalpyofair,aswellassensibleandlatentheatloadhandlingcapacity.Onthecapacitychartofsurfaceaircoolerwecanillustratethesensibleandlatentheatloads,tracethetransientairconditioningprocesses,andfindtheequilibriumstateofindoorairconditiongivenbyasurfacecoolerindifferentindoorsensibleandlatentheatloads.surfaceaircooler,psychrometricchart,coolinganddehumidificationcapacitychart,Keywordstemperatureandhumidityconditioning,heatandmoistureload★TongjiUniversity,Shanghai,China引言GB50019—2003《采暖通風(fēng)與空氣調(diào)節(jié)設(shè)計(jì)規(guī)范》[1]規(guī)定:空氣調(diào)節(jié)設(shè)備表冷器冷水供水溫度一般為7℃,供回水溫差一般為5℃;GB/T19232—2003《風(fēng)機(jī)盤管機(jī)組》[2]對(duì)額定供冷量工況的規(guī)定為:表冷器進(jìn)口空氣干球溫度為27℃,進(jìn)口空氣濕球溫度為19.5℃;表冷器供水進(jìn)口溫度為7℃,供回水溫差為5℃。目前,大部分風(fēng)機(jī)盤管表冷器生產(chǎn)廠家均以上述標(biāo)準(zhǔn)規(guī)定值為設(shè)計(jì)參數(shù),一些非標(biāo)表冷器一般也是依據(jù)某一固定參數(shù)進(jìn)行設(shè)計(jì),即空調(diào)表冷器是根據(jù)某一固定空氣狀態(tài)參數(shù)進(jìn)行設(shè)計(jì)和生產(chǎn)的,而廠家一般也只給出這一固定空氣狀態(tài)參數(shù)下或幾個(gè)空氣狀態(tài)參數(shù)下的性能參數(shù)(如制冷量、制熱量等),但在實(shí)際運(yùn)行過(guò)程中,由于室內(nèi)冷、濕負(fù)荷的變化,表冷器大部分時(shí)間都不在上述標(biāo)準(zhǔn)工況下運(yùn)行[3],其運(yùn)行規(guī)律為:在風(fēng)量、水量不變的情況下,隨著表冷器進(jìn)口空氣溫濕度的增加,其制冷量也會(huì)逐漸增加[4]。而當(dāng)表冷器在非標(biāo)準(zhǔn)工況下運(yùn)