制冷原理与技术－上海交通大学(1)

ADSORPTIONREFRIGERATIONWANGRuzhuSJTU-IRC制冷原理与技术1.SolidsorptionconceptszAdsorptionadsorbent-adsorbatezPhysicaladsorptionzeolite-water,silicagel-water,activatedcarbon-methanol/ammoniazChemicaladsorptionCaCl2-ammonia,Metalhydride-hydrogen制冷原理与技术Structureofadsorbent-zeolite制冷原理与技术2、Adsorptionisobars,isothermsandisotersis()xfpT∞=,Adsorptionsystem()xfpT∞=()xfTp∞=()pfTx=IsothermsIsobarsIsotersis02040608010012014010001001010.050.10.602040608010012014010001001010.020.26(a)Activatedcarbonfibre-methanolFig.2-135p-T-xdiagram(b)Activatedcarbon-methanolFig.2-151p-T-xdiagramofLiBr-waterSingleeffectPePcxT,oCxconcxdilTaTgFig.2-137:AdsorptionIsobarsAdsorption：Ta、Pe;Desorption:Tg、Pc制冷原理与技术3、AdsorptionRefrigerationCycle1、AdsorptionrefrigerationworkingpairƒPhysicaladsorptionzeolite-water,silicagel-water,activatedcarbon-methanol/ammoniaƒChemicaladsorptionCaCl2-ammonia,Metalhydride-hydrogen3、AdsorptionRefrigerationCycle（1）BasicCycleFig.2-154SolaricemakerbasedonbasiccyclelnPPcPeQcondQgQevaQadQhQc561423TeTcTaTgTaTg2-1/T(1/K)饱和制冷剂XconcXdilFig.2-155P-T-xdiagramofadsorptionrefrigerationcycleLnPABPcbQgcbQgcQregQhQcQcQhQregPeadadQadQadTa2Tg1Ta1Tg2Ta2Tg1Ta1Tg2-1/TFig.2-155Twobedsheatrecoverycycle（2）HeatRecoveryAdsorptionRefrigerationCycle4.ApplicationsofAdsorptionRefrigerationFig.2-157Adsorptionchilledwatersystemdrivenbyhotwater(JapanTokyoGasCo.Ltd)ƒSilicagel-waterƒQf=70-352kWƒHotwaterdriven:75-70℃ƒCoolingwater:29-33℃ƒChilledwater:14-9℃ƒCOP：0.630oC热源温差驱动;60oCCOP-0.3;85oCCOP-0.4干盘管工况COP-0.5制冷原理与技术regeneratorevaporatordriverfancoilpumpchimneycondensercheckvalveAadsorberexhaustgasinletvaccumvalvenoserinletlocomotiveroofexhaustgasoutletcheckvalveBcheckvalveCnoserinletcabingas/airoutletadsorbercondensercondensercoolingairinletcoolingairinletchimney内燃机车余热驱动吸附式空调器上海交大,2001制冷原理与技术•Zeolite-water•4-6kWACcooling•Temp.differencebetweencabinandoutside8oC•Onesingleadsorbersystem+watercoldstorage冷凝器冷媒水泵储液器恒温水箱燃烧器引风机蒸发/蓄冷器吸附床蓄冷水泵鼓风机冷却水Fig.2-159LaboratorytestunitAdsorberEvap/Receiver/Coldstorage制冷原理与技术Solarcoldboxforvaccinepreservation(英国UniversityofWarwick)z国际卫生组织向发展中国家推荐的用于疫苗冷藏的太阳能吸附制冷机制冷原理与技术SolarIcemaker（CNRS、FrenchCompanyBLM)zSolarcollector：1m2zadsorptionpair：activatedcarbon-methanol制冷原理与技术（5）AdsorptionColdStorage00.050.10.150.20.250.3050100150200250T(℃)x(kg/kg)Ts=12.5℃Ts=34℃Ts=45℃dxfgstorhxxq)(10−=制冷原理与技术fgchxxq)(12−=1012xxxx−−=εdTcmdTxccmdxqmpbbprpaaada++=)()()/exp(/021xxTkkdtdxeq−⋅−=制冷原理与技术-1/TLn(p)ABCDEFGHIT0Tx1Pcondx3PevJKxfxhxj00.20.40.60.8130507090110130150170T(℃)ε123456图2-160AdibaticColddischarge0200400600050100150200250300Tg(℃)qc(kJ/kg)Fig.2-161Coldstorageofzeolite-water