有機工質(zhì)雙循環(huán)螺桿膨脹機系統(tǒng)研究.pdf

1、帝需器魏⑧天津又謦中國近代第一所大學(xué)碩士學(xué)位論文■_^■K_啊麟j：■哪■■口■■■_學(xué)科專業(yè)：熱能工程作者姓名：營翔超指導(dǎo)教師：攣惟毅教授天津大學(xué)研究生院2006年2月ABSTRACTInrecentyears，becauselowengrgyusagepersecutesthedevelopmentofeconomyandsocietypeopleattachimportancetoenergyconservationproblem

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5、temcoolingprogramareillustratedAfterthatonthebasisoftheoreticalanalysis，thesimulationofactualsystemcycleismadeAtfirsttwocyclewaysarecirculatedandcomparedanadaptablecyclewayisselected；thenfromsomenormallowboilingpomtworki

6、ngfluids，accordingtotherequestofsystemsecurityfouralkanesfluidsare10re—selectedtoproceedthefinaloptimizationthemostadaptableODeisselectedasthecyclefluidofthesysternbⅡ瑚theresearch011thisnewsurplusheatrecoverytechnologythe

7、thesishasapproveditsfeasibilityinbothtechnicalandeconomicalItsresearchconclusionsnotonlysupplythetheoreticalbasisforthefutureexperimentalresearchconsideredthesituationofourcountryitputsforwardanewsettlementtoincreaseener