氨水吸收式制冷gax循環(huán)性能分析_第1頁(yè)
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1、東南大學(xué)碩士學(xué)位論文氨水吸收式制冷GAX循環(huán)性能分析姓名：廖健敏申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：制冷及低溫工程指導(dǎo)教師：杜塏20040301塑蘭蘭垡壘奎——ABSTRACTIntherefrigerationsystemusingindustrialwasteheat，ammoniawaterabsorptionrefrigerationsystemhasmuchmoresuperioritythanLiBrwaterabsorptionsys

2、temaHowevertheCOPofconventionalammoniawaterabsorptionrefrigerationsystemisrelativelysmallerbecauseofitsmoreequipments1argervolumeandmoresteelconsumption。Sohowtoovercomethedefectoftheammoniawaterabsorptionrefrigerationsys

3、temandimproveitsCOPisthekeyjobintheextendingapplicationoftheammonia—waterabsorptionrefrigerationsystem。Giventheproblemmentionedabove，inthispaperweputforwardanewammoniawaterabsorptionrefrigerationsystemcalledGAXcycle。GAXc

4、yclecanrecovertheheatreleasedbytheabsorptionprocessintheabsorberandsupplytothegeneratorwhichuseitasheatconsumptioninthegenerationprocess。ThroughtheheatrecoverybetweentheabsorberandthegeneratortheCOPCallbeincreasedandthep

5、erformanceoftheabsorptionsystemcanbeimproved。InthisthesiswecarryoutthedetailedtheoreticalanalysisandmathematicalsimulationfortheGAXcyclefromthevariousaspectssuchascycleconstitution，systemworkingcondition，performancechang

6、e。Becauseheatsoametemperature，evaporationtemperature，coolingwatertemperatureandotherworkingconditionvariablesaretheimportantfactorswhichdomuchinfluenceontheperformanceoftheabsorptionsystem，anoverallcomparativeanalysishas

7、beendoneaccordingtothedifferenttemperatumconditionsanddifferentcycletypes。Inthisway，weobtainmanyfundamentaltheoriesandperformancetrendsinthepracticalapplicationoftheGAXcycleInthethesistheoreticalresearchandcalculationofG

8、AXcyclewerestudied。ThemaincontainsareasfoIlows：(1)Realizethecomputercalculationoftheammoniawaterstateparameterwhichcansettletheproblemresultedbythecalculationcomplexioninthedesignoftheammoniawatersystem(2)Throughthecompa

9、rativeanalysisoftheGAXcycleandnormalcycleobtaintheperformancechangetrendandcomparativesuperiorityoftheGAXcycleunderdifferenttemperatureworkingcondition。Atthes83netimeobtainmanyconceptionssuchasthecriticalheatsourcetemper

10、atureandcriticalevaporationtemperaturewhichwilldomuchgoodtotheoptimizingselectionanddesignanalysisoftheGAXcycle。(3)Carryouttheexergyanalysisrarelymadeintheenergyandperformanceanalysisoftheabsorptionsystem。Thiskindofanaly

11、sisisbasedonthequalityviewofenergyaswellasthequantityviewsoitcansupplyacomprehensiveandscientificevaluationtotheperformanceofGAXcycle【4)Asimpleanddistinctmathematicalsimulationhasbeenputforwardaccordingtotheprincipleofth

12、ecorrespondingGAXcycle。AccordingtothesimulationofGAXcycleacalculationsoftwareofvariousGAXcycleswasalsoprogrammedbyusingVBcomputerlanguage。Thusamoreconvenientandmoreaccuratemathodwasrealizedanditcanmakethecalculationandan

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