空调器制冷剂充注量的计算

:19980909(,250014),,,;;TB657120,,,,,,,1,,,1,,,111ne,le,m;Re,m;,x0la1,,,me,:0la,laleme=nePR2e{la0[xQe+(1-x)Qe]dl+lelaQedl}kg(1):QeQe,kgöm3;x,(1),:maredx=qeAedlxx0maredx=l0qeAedl(2):ma,kgös;re,kJökg;Ae134199812JOURNALOFSHANDONGINSTITUTEOFARCH.ANDENG.Vol.13No.4Dec.1998©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,m2öm;qe,kWöm2;x0,(2):x=x0+qeAemarel(3)la:la=mareqeAe(1-x0)(4)(3)(4)(1):me=nePR2e{mare(1-xe)22qeAe(Qe-Qe)+Qele}kg(5)Ae=Ae0le=Qeqelem2öm(6)ma=Qeh1-h4(7):Ae0,m2;Qe,kW;h4h1,kJökg(6)(7)(5)me:me=nePR2ele{re(1-x0)22(h1-h4)(Qe-Qe)+Qe}kg(8)k1=re(1-x0)22(h1-h4)(Qe-Qe)+Qe(9)me=nePR2eleõk1=Veõk1(10)112me,nc,lc,Rc,,,,,:0l1;l1l2;:l2lcmc=ncPR2c{l10Qcdl+l2l1[xQc+(1-x)Qc]dl+lclvQdl}kg(11):QcQc,kgöm3(11),l1l2,x,:(1):0l1ma(h2-h2)=qcAcl1:qc,kWöm2;(qc),Ac,m2öm;h2,kJökg;h2,kJökgl1=ma(h2-h2)qcAc(12)(2):l1l2154:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.-marcdx=qcAcdl:x=1-qcAcmarc(l-l1)(13)x0,l2,l2=l1+marcqcAc(14)(12)(13)(14)(11):mc:mc=ncPR2c{Qclc-ma(Qc-Qc)2qcAc[2(h2-h2)+rc]}kg(15)ma=Qch2-h3(16)Ac=A0clc=Qcqclc(17):h2h3,kJökg;Qc,kW;A0c,m2(16)(17)(15)mc:mc=ncPR2clc{Qc-(Qc-Qc)2(h2-h3)[2(h2-h2)+rc]}kg(18)(18):mc=Vck2kg(19):Vc=nPR2clc,,m3;k2,k2=Qc-(Qc-Qnc)2(h2-h3)[2(h2-h2)+rc](20)113mcom,(),,:mcom=ncomQ1Vg=ncomQeVgkg(21):ncom,1ö2;Vg,m3114mth,,,,,,,:mth=[xQ+(1-x)Q]Vthkg(22):x=x02,;QQPc+Pe2,,kgöm3;Vth,m3;PcPe115mpmp=mp1+mp2+mp3=Q3Vp1+Q1Vp2+Q2Vp3·QcVp1+QeVp2+QcVp3kg(23)251998©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.:Vp1,m3;Vp2,m3;Vp3,m3;Q,kgöm3,1;2;3,,:m=me+mc+mcom+mth+mpkg2HF35NÊHF45NÊ,T0=5,Tk=50,,,11ökgömömHF35NÊ1115416111424241415115HF45NÊ1141416211422241817920:13(1),,,(2)1,Qe=ma(h1-h4)Qc=(h2-h3)ma,,,(3)(8)(18)(21)(22)(23),,,(4),111,1991,(7)354:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.CALCULATIONOFREFRIGERANTFILLINGQUANTITYOFAIR-CONDITIONERSLouNenchun(Dept.ofUrbanConstructionEngineering,ShandongInstituteofArchitectureandEngineering,Jinan250014)AbstractAnintegralmethodisusedtocalculatetherefrigerantfillingquantityofair2conditioners.Explicitandsimpleequationsareobtained.Comparingwiththepracticalvalues,themodelisprovedtobeaccurate.KeyWordsrefrigerant;massflow;fillingquantity451998©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.