I-HANGZHOU NUZHUO TECHNOLOGY GROUP CO.,LTD.

Ama-expander angasebenzisa ukunciphisa ingcindezi ukushayela imishini ejikelezayo. Ulwazi lokuthi ungahlola kanjani izinzuzo ezingaba khona zokufaka i-expander lungatholakala lapha.
Ngokuvamile embonini yezinqubo zamakhemikhali (CPI), "inani elikhulu lamandla liyachithwa kuma-valve okulawula ingcindezi lapho uketshezi oluphezulu kufanele luncishiswe khona" [1]. Kuye ngezici ezahlukene zobuchwepheshe nezomnotho, kungaba kuhle ukuguqula la mandla abe amandla omshini ajikelezayo, angasetshenziswa ukushayela amajeneretha noma eminye imishini ejikelezayo. Kuketshezi olungacindezeleki (uketshezi), lokhu kufezwa kusetshenziswa i-hydraulic energy recovery turbine (HPRT; bheka ireferensi 1). Kuketshezi olucindezelekayo (amagesi), i-expander ingumshini ofanele.
Ama-expander awubuchwepheshe obuvuthiwe obunezinhlelo eziningi eziphumelelayo ezifana nokuqhekeka kwe-fluid catalytic (FCC), ukubanda, ama-valve edolobha anegesi yemvelo, ukuhlukaniswa komoya noma ukukhishwa komoya. Ngokomthetho, noma yimuphi umfudlana wegesi onengcindezi encishisiwe ungasetshenziswa ukushayela i-expander, kodwa "ukukhishwa kwamandla kuhambelana ngqo nesilinganiso sokucindezela, izinga lokushisa kanye nesivinini sokugeleza komfudlana wegesi" [2], kanye nokwenzeka kobuchwepheshe kanye nezomnotho. Ukuqaliswa kwe-Expander: Inqubo incike kulezi zici nezinye, njengezintengo zamandla endawo kanye nokutholakala komkhiqizi wemishini efanelekile.
Nakuba i-turboexpander (esebenza ngendlela efanayo ne-turbine) iwuhlobo lwe-expander olwaziwa kakhulu (Isithombe 1), kunezinye izinhlobo ezifanele izimo zenqubo ezahlukene. Lesi sihloko sethula izinhlobo eziyinhloko ze-expander kanye nezingxenye zazo futhi sifingqa indlela abaphathi bemisebenzi, abeluleki noma abahloli bamandla ezigabeni ezahlukene ze-CPI abangahlola ngayo izinzuzo ezingaba khona kwezomnotho nezemvelo zokufaka i-expander.
Kunezinhlobo eziningi ezahlukene zama-resistance band ahluka kakhulu ngokwejiyometri kanye nomsebenzi. Izinhlobo eziyinhloko ziboniswe kuMfanekiso 2, futhi uhlobo ngalunye luchazwe kafushane ngezansi. Ukuze uthole ulwazi olwengeziwe, kanye namagrafu aqhathanisa isimo sokusebenza sohlobo ngalunye ngokusekelwe kumadayamitha athile kanye nesivinini esithile, bheka Usizo. 3.
I-turboexpander ye-piston. Ama-turboexpander e-piston kanye ne-rotary piston asebenza njengenjini yokushisa yangaphakathi ephenduka emuva, emunca igesi enomfutho ophezulu futhi eguqula amandla ayo agciniwe abe amandla ajikelezayo nge-crankshaft.
Hudula i-turbo expander. I-brake turbine expander inegumbi lokugeleza eliyi-concentric elinama-bucket fin anamathele emngceleni wento ejikelezayo. Aklanywe ngendlela efanayo namasondo amanzi, kodwa ingxenye evundlile yamakamelo ayi-concentric iyanda kusukela ekungeneni kuya ekuphumeni, okuvumela igesi ukuthi ikhule.
I-Radial turboexpander. Ama-radial flow turboexpander anokungena kwe-axial kanye nendawo yokukhipha i-radial, okuvumela igesi ukuthi ikhule nge-radially nge-turbine impeller. Ngokufanayo, ama-axial flow turbine andisa igesi ngesondo le-turbine, kodwa isiqondiso sokugeleza sihlala sihambisana ne-axis yokujikeleza.
Lesi sihloko sigxile kuma-radial kanye nama-axial turboexpanders, sixoxa ngezinhlobo zawo ezahlukahlukene, izingxenye, kanye nezomnotho.
I-turboexpander ikhipha amandla emsinganeni wegesi onomfutho ophezulu bese iwuguqula ube umthwalo wokushayela. Ngokuvamile umthwalo uyi-compressor noma i-generator exhunywe ku-shaft. I-turboexpander ene-compressor icindezela uketshezi kwezinye izingxenye zomfula wenqubo ezidinga uketshezi olucindezelwe, ngaleyo ndlela yandisa ukusebenza kahle kwesitshalo ngokusebenzisa amandla angasetshenziswa ngenye indlela. I-turboexpander enomthwalo wejeneretha iguqula amandla abe ugesi, ongasetshenziswa kwezinye izinqubo zesitshalo noma ubuyiselwe kugridi yendawo ukuze ithengiswe.
Amajeneretha e-turboexpander angafakelwa umshafti oqondile osuka esondweni le-turbine uye kujeneretha, noma nge-gearbox enciphisa ngempumelelo isivinini sokufaka kusuka esondweni le-turbine kuya kujeneretha ngesilinganiso segiya. Ama-turboexpander e-direct drive anikeza izinzuzo ekusebenzeni kahle, izindleko zonyawo kanye nokugcinwa. Ama-turboexpander e-gearbox asinda futhi adinga indawo enkulu yonyawo, imishini yokusiza yokugcoba, kanye nokugcinwa njalo.
Ama-turboexpander ageleza ngokusebenzisa angenziwa ngesimo sama-radial noma ama-axial turbine. Ama-radial flow expanders aqukethe i-axial inlet kanye ne-radial outlet ukuze ukugeleza kwegesi kuphume nge-radial kusuka ku-axis of rotation. Ama-axial turbine avumela igesi ukuthi igeleze nge-axial ku-axis of rotation. Ama-axial flow turbine akhipha amandla kusuka ekugelezeni kwegesi ngama-inlet guide vanes kuya esondweni le-expander, indawo enqamulayo yegumbi lokunweba ikhula kancane kancane ukuze igcine ijubane eliqhubekayo.
Ijenereyitha ye-turboexpander inezingxenye ezintathu eziyinhloko: isondo le-turbine, ama-bearings akhethekile kanye nejenereyitha.
Isondo le-turbine. Amasondo e-turbine avame ukuklanywa ngqo ukuze athuthukise ukusebenza kahle kwe-aerodynamic. Izinguquko zokusetshenziswa ezithinta ukwakheka kwesondo le-turbine zifaka phakathi ingcindezi yokungena/yokuphuma, izinga lokushisa lokungena/lokuphuma, ukugeleza kwevolumu, kanye nezakhiwo zoketshezi. Uma isilinganiso sokucindezela siphezulu kakhulu ukuba singancishiswa esigabeni esisodwa, kudingeka i-turboexpander enamasondo amaningi e-turbine. Womabili amasondo e-radial kanye ne-axial turbine angaklanywa njengalawo anezigaba eziningi, kodwa amasondo e-axial turbine anobude obufushane kakhulu be-axial futhi ngenxa yalokho acinene kakhulu. Ama-turbine e-radial flow anezigaba eziningi adinga igesi ukuthi igeleze isuka ku-axial iye ku-radial iphinde ibuyele ku-axial, okudala ukulahlekelwa okukhulu kokungqubuzana kunama-turbine e-axial flow.
ama-bearing. Ukwakheka kwama-bearing kubalulekile ekusebenzeni kahle kwe-turboexpander. Izinhlobo zama-bearing ezihlobene nemiklamo ye-turboexpander ziyahlukahluka kakhulu futhi zingafaka ama-oyela bearing, ama-liquid film bearing, ama-ball bearing endabuko, kanye nama-magnetic bearing. Indlela ngayinye inezinzuzo nezinkinga zayo, njengoba kuboniswe kuThebula 1.
Abakhiqizi abaningi be-turboexpander bakhetha ama-magnetic bearings “njengoba bekhetha” ngenxa yezinzuzo zabo eziyingqayizivele. Ama-magnetic bearings aqinisekisa ukusebenza okungenazingxabano kwezingxenye ezishintshayo ze-turboexpander, okunciphisa kakhulu izindleko zokusebenza nokugcinwa phakathi nesikhathi somshini. Aklanyelwe futhi ukumelana nemithwalo eminingi ye-axial kanye ne-radial kanye nezimo zokucindezeleka ngokweqile. Izindleko zawo zokuqala eziphezulu zincishiswa yizindleko zomjikelezo wokuphila eziphansi kakhulu.
i-dynamo. Ijenereyitha ithatha amandla okujikeleza e-turbine bese iyiguqula ibe amandla kagesi awusizo isebenzisa ijenereyitha kagesi kagesi (engaba ijenereyitha yokungenisa noma ijenereyitha yamagnethi ehlala njalo). Amajenereyitha okungenisa anesivinini esiphansi, ngakho-ke izinhlelo zokusebenza ze-turbine eshesha kakhulu zidinga ibhokisi legiya, kodwa zingaklanywa ukuze zifane nemvamisa yegridi, kususwe isidingo se-variable frequency drive (VFD) ukuze kuhlinzekwe ugesi okhiqizwayo. Amajenereyitha amagnethi ahlala njalo, ngakolunye uhlangothi, angaxhunywa ngqo ne-turbine futhi adlulisele amandla kugridi nge-variable frequency drive. Ijenereyitha yenzelwe ukuletha amandla aphezulu ngokusekelwe emandleni e-shaft atholakala ohlelweni.
Izivalo. Isivalo siyingxenye ebalulekile lapho kuklanywa uhlelo lwe-turboexpander. Ukuze kulondolozwe ukusebenza kahle okuphezulu futhi kuhlangatshezwane nezindinganiso zemvelo, izinhlelo kumele zivalwe ukuze kuvinjelwe ukuvuza kwegesi okungenzeka. Ama-Turboexpander angafakelwa izivalo ezinamandla noma ezimile. Izivalo ezinamandla, njengezivikelo ze-labyrinth kanye nezivalo zegesi ezomile, zinikeza isivalo esizungeze umgodi ojikelezayo, ngokuvamile phakathi kwesondo le-turbine, ama-bearings kanye nalo lonke umshini lapho ijeneretha ikhona khona. Izivalo ezinamandla ziyaguga ngokuhamba kwesikhathi futhi zidinga ukulungiswa njalo nokuhlolwa ukuqinisekisa ukuthi zisebenza kahle. Uma zonke izingxenye ze-turboexpander ziqukethwe endlini eyodwa, izivalo ezimile zingasetshenziswa ukuvikela noma yiziphi izintambo eziphuma endlini, okuhlanganisa nejeneretha, ama-magnetic bearing drive, noma izinzwa. Lezi zivalo ezingangeni moya zihlinzeka ngesivikelo esihlala njalo ekuvuthweni kwegesi futhi azidingi ukulungiswa noma ukulungiswa.
Ngokombono wenqubo, isidingo esiyinhloko sokufaka i-expander ukuhlinzeka ngegesi ecindezelwayo (engafudumali) enomfutho ophezulu ohlelweni olunomfutho ophansi olunokugeleza okwanele, ukwehla komfutho kanye nokusetshenziswa ukuze kulondolozwe ukusebenza okuvamile kwemishini. Amapharamitha okusebenza agcinwa ezingeni eliphephile nelisebenzayo.
Ngokuphathelene nomsebenzi wokunciphisa ingcindezi, i-expander ingasetshenziswa ukufaka esikhundleni se-valve ye-Joule-Thomson (JT), eyaziwa nangokuthi i-throttle valve. Njengoba i-valve ye-JT ihamba ngendlela ye-isentropic futhi i-expander ihamba ngendlela ecishe ibe yi-isentropic, le yokugcina inciphisa i-enthalpy yegesi futhi iguqula umehluko we-enthalpy ube amandla e-shaft, ngaleyo ndlela ikhiqize izinga lokushisa eliphansi lokukhipha kune-valve ye-JT. Lokhu kuyasiza ezinqubweni ze-cryogenic lapho umgomo uwukunciphisa izinga lokushisa legesi.
Uma kunomkhawulo ophansi ekushiseni kwegesi yokuphuma (isibonelo, esiteshini sokukhipha ukucindezeleka lapho izinga lokushisa legesi kufanele ligcinwe lingaphezu kokubanda, umswakama, noma izinga lokushisa elincane lokuklama izinto), okungenani i-heater eyodwa kumele ifakwe. lawula izinga lokushisa legesi. Uma i-preheater itholakala phezulu kwe-expander, amanye amandla avela kugesi yokuphakelayo nawo ayabuyiswa ku-expander, ngaleyo ndlela kwandiswe amandla ayo okukhipha. Kwezinye izilungiselelo lapho kudingeka khona ukulawula izinga lokushisa le-outlet, i-reheater yesibili ingafakwa ngemuva kwe-expander ukuze inikeze ukulawula okusheshayo.
KuMfanekiso 3. Umfanekiso 3 ukhombisa umdwebo olula womdwebo wokugeleza ojwayelekile wejeneretha yokwandisa ene-preheater esetshenziselwa ukufaka esikhundleni se-valve ye-JT.
Kwezinye izilungiselelo zenqubo, amandla atholakele ku-expander angadluliselwa ngqo ku-compressor. Le mishini, ngezinye izikhathi ebizwa ngokuthi “ama-commander”, ivame ukuba nezigaba zokunwebeka kanye nokucindezela ezixhunywe yi-shaft eyodwa noma ngaphezulu, engase ihlanganise ne-gearbox ukulawula umehluko wesivinini phakathi kwezigaba ezimbili. Ingafaka futhi injini eyengeziwe ukunikeza amandla engeziwe esigabeni sokucindezela.
Ngezansi kunezinye zezingxenye ezibaluleke kakhulu eziqinisekisa ukusebenza kahle kanye nokuzinza kohlelo.
Ivalvu yokudlula noma ivalvu yokunciphisa ingcindezi. Ivalvu yokudlula ivumela ukusebenza ukuthi kuqhubeke lapho i-turboexpander ingasebenzi (isibonelo, ngokulungiswa noma esimweni esiphuthumayo), kuyilapho ivalvu yokunciphisa ingcindezi isetshenziselwa ukusebenza okuqhubekayo ukuze kuhlinzekwe igesi eningi lapho ukugeleza okuphelele kudlula umthamo womklamo we-expander.
I-valve yokuvala ephuthumayo (ESD). Ama-valve e-ESD asetshenziselwa ukuvimba ukugeleza kwegesi ku-expander esimweni esiphuthumayo ukuze kugwenywe umonakalo wemishini.
Amathuluzi nezilawuli. Izinguquko ezibalulekile okufanele ziqashwe zifaka phakathi ingcindezi yokungena kanye neyokuphuma, izinga lokugeleza, isivinini sokujikeleza, kanye nokukhishwa kwamandla.
Ukushayela ngesivinini esikhulu. Idivayisi inqamula ukugeleza okuya ku-turbine, okwenza i-turbine rotor yehle, ngaleyo ndlela ivikele imishini ekusheshiseni okukhulu ngenxa yezimo zenqubo ezingalindelekile ezingalimaza imishini.
I-Pressure Safety Valve (PSV). Ama-PSV avame ukufakwa ngemuva kwe-turboexpander ukuvikela amapayipi kanye nemishini yokucindezela okuphansi. I-PSV kumele yakhelwe ukumelana nezimo ezinzima kakhulu, ezivame ukufaka phakathi ukwehluleka kwe-bypass valve ukuvula. Uma i-expander ingezwa esiteshini sokunciphisa ukucindezela esikhona, ithimba lokuklama izinqubo kumele linqume ukuthi i-PSV ekhona inikeza yini isivikelo esanele.
I-Heater. Ama-heater akhokhela ukwehla kwezinga lokushisa okubangelwa igesi edlula ku-turbine, ngakho-ke igesi kumele ishiswe. Umsebenzi wayo oyinhloko ukwandisa izinga lokushisa lokugeleza kwegesi okukhuphukayo ukuze kulondolozwe izinga lokushisa legesi kushiye i-expander ingaphezu kwenani eliphansi. Enye inzuzo yokuphakamisa izinga lokushisa ukwandisa ukuphuma kwamandla kanye nokuvimbela ukugqwala, ukujiya, noma ama-hydrate angathinta kabi ama-nozzle emishini. Ezinhlelweni eziqukethe ama-heat exchanger (njengoba kuboniswe kuMfanekiso 3), izinga lokushisa legesi livame ukulawulwa ngokulawula ukugeleza koketshezi olufudumele ku-preheater. Kweminye imiklamo, i-flame heater noma i-electric heater ingasetshenziswa esikhundleni se-heat exchanger. Ama-heater angase abe khona kakade esiteshini se-JT valve esikhona, futhi ukwengeza i-expander kungase kungadingi ukufaka ama-heater engeziwe, kodwa kunalokho kwandisa ukugeleza koketshezi olufudumele.
Izinhlelo zegesi zokugcoba uwoyela kanye negesi yokuvala. Njengoba kushiwo ngenhla, ama-expander angasebenzisa imiklamo ehlukene yokuvala, okungadinga ukugcoba kanye namagesi okuvala. Lapho kufanele khona, uwoyela wokugcoba kumele ugcine ikhwalithi ephezulu kanye nobumsulwa lapho uthintana namagesi enqubo, futhi izinga le-viscosity uwoyela kumele lihlale ngaphakathi kobubanzi obudingekayo bokusebenza kwama-bearings agcotshiwe. Izinhlelo zegesi ezivaliwe zivame ukuhlonyiswa ngedivayisi yokugcoba uwoyela ukuvimbela uwoyela ebhokisini lokuthwala ukuthi ungene ebhokisini lokukhulisa. Ngezinhlelo ezikhethekile zama-compander asetshenziswa embonini ye-hydrocarbon, izinhlelo zegesi zokugcoba uwoyela kanye negesi yokuvala zivame ukuklanywa ngokwe-API 617 [5] Ingxenye 4.
Idrayivu yemvamisa eguquguqukayo (VFD). Uma ijeneretha ingeniswa, i-VFD ivame ukuvulwa ukuze kulungiswe isignali ye-alternating current (AC) ukuze ifane nemvamisa yokusetshenziswa. Ngokuvamile, imiklamo esekelwe kuma-variable frequency drives inokusebenza kahle okuphezulu kunemiklamo esebenzisa ama-gearbox noma ezinye izingxenye zemishini. Izinhlelo ezisekelwe ku-VFD zingaphinde zivumelane nohlu olubanzi lwezinguquko zenqubo ezingabangela izinguquko kwisivinini somshafu we-expander.
Ukudluliselwa. Eminye imiklamo ye-expander isebenzisa i-gearbox ukunciphisa ijubane le-expander liye kwijubane elilinganiselwe le-generator. Izindleko zokusebenzisa i-gearbox ziphansi ukusebenza kahle kanye nokukhishwa kwamandla okuphansi.
Lapho elungiselela isicelo sekhotheshini (RFQ) se-expander, unjiniyela wenqubo kumele aqale anqume izimo zokusebenza, okuhlanganisa nolwazi olulandelayo:
Onjiniyela bemishini bavame ukuqeda imininingwane kanye nemininingwane yejeneretha yokwandisa besebenzisa idatha evela kwezinye izigaba zobunjiniyela. Lokhu okufakwayo kungafaka okulandelayo:
Imininingwane kumele futhi ifake uhlu lwemibhalo nemidwebo enikezwe umenzi njengengxenye yenqubo yethenda kanye nobubanzi bokuhlinzekwa, kanye nezinqubo zokuhlola ezisebenzayo njengoba kudingeka yiphrojekthi.
Ulwazi lobuchwepheshe olunikezwa umenzi njengengxenye yenqubo yethenda kufanele luhlanganise izinto ezilandelayo:
Uma noma yisiphi isici sesiphakamiso sihlukile ezicacisweni zokuqala, umenzi kumele futhi anikeze uhlu lokuphambuka kanye nezizathu zokuphambuka.
Uma isiphakamiso sesitholiwe, ithimba lokuthuthukisa iphrojekthi kumele libuyekeze isicelo sokuthobela imithetho bese linquma ukuthi ukuhlukahluka kuyamukeleka yini ngokobuchwepheshe.
Ezinye izinto zobuchwepheshe okufanele uzicabangele lapho kuhlolwa iziphakamiso zifaka:
Okokugcina, kudingeka kwenziwe ukuhlaziywa kwezomnotho. Ngenxa yokuthi izinketho ezahlukene zingase ziholele ezindlekweni zokuqala ezahlukene, kunconywa ukuthi kwenziwe ukuhlaziywa kwemali noma izindleko zomjikelezo wokuphila ukuze kuqhathaniswe umnotho wesikhathi eside wephrojekthi kanye nenzuzo ekutshalweni kwezimali. Isibonelo, ukutshalwa kwezimali kokuqala okuphezulu kungancishiswa ngokuhamba kwesikhathi ngokukhiqiza okwandisiwe noma izidingo zokunakekelwa ezincishisiwe. Bheka “Izinkomba” ukuze uthole imiyalelo ngalolu hlobo lokuhlaziywa. 4.
Zonke izinhlelo zokusebenza ze-turboexpander-generator zidinga ukubalwa kwamandla okuqala okuphelele ukuze kutholakale inani eliphelele lamandla atholakalayo angatholakala kuhlelo lokusebenza oluthile. Ku-turboexpander generator, amandla amandla abalwa njengenqubo ye-isentropic (eqhubekayo entropy). Lesi yisimo esifanele se-thermodynamic sokucabangela inqubo ye-adiabatic eguquguqukayo ngaphandle kokungqubuzana, kodwa inqubo efanele yokulinganisa amandla angempela.
Amandla e-Isentropic potential (IPP) abalwa ngokuphindaphinda umehluko othize we-enthalpy ekungeneni nasekuphumeni kwe-turboexpander bese kuphindaphinda umphumela ngesilinganiso sokugeleza kwesisindo. La mandla angenzeka azovezwa njengobuningi be-isentropic (Isibalo (1)):
IPP = ( hinlet – h(i,e)) × ṁ x ŋ (1)
lapho i-h(i,e) iyi-enthalpy ethile uma kucatshangelwa izinga lokushisa le-isentropic outlet kanye ne-ṁ izinga lokugeleza kwesisindo.
Nakuba amandla e-isentropic potential angasetshenziswa ukulinganisa amandla angase abe khona, zonke izinhlelo zangempela zihilela ukungqubuzana, ukushisa, kanye nokunye ukulahlekelwa kwamandla okuhambisanayo. Ngakho-ke, lapho kubalwa amandla angempela, idatha yokufaka eyengeziwe elandelayo kufanele icatshangelwe:
Eziningi zezicelo ze-turboexpander, izinga lokushisa lilinganiselwe okungenani ukuze kuvinjelwe izinkinga ezingafuneki njengokuqandisa kwamapayipi okukhulunywe ngakho ekuqaleni. Lapho kugeleza khona igesi yemvelo, ama-hydrate ahlala ekhona, okusho ukuthi ipayipi elingaphansi kwe-turboexpander noma i-throttle valve lizoqandisa ngaphakathi nangaphandle uma izinga lokushisa lokukhipha lehla ngaphansi kuka-0°C. Ukwakheka kweqhwa kungabangela ukuvinjelwa kokugeleza futhi ekugcineni kuvale uhlelo ukuze luncibilike. Ngakho-ke, izinga lokushisa lokukhipha "elifiselekayo" lisetshenziselwa ukubala isimo samandla esingaba khona esingokoqobo. Kodwa-ke, kumagesi afana ne-hydrogen, umkhawulo wokushisa uphansi kakhulu ngoba i-hydrogen ayishintshi kusuka kugesi iye koketshezi kuze kube yilapho ifinyelela izinga lokushisa eli-cryogenic (-253°C). Sebenzisa leli zinga lokushisa lokukhipha olifiselekayo ukuze ubale i-enthalpy ethile.
Ukusebenza kahle kohlelo lwe-turboexpander kumele kucatshangelwe. Kuye ngobuchwepheshe obusetshenzisiwe, ukusebenza kahle kohlelo kungahluka kakhulu. Isibonelo, i-turboexpander esebenzisa igiya lokunciphisa ukudlulisa amandla okujikeleza kusuka ku-turbine kuya kujeneretha izobhekana nokulahlekelwa okukhulu kokungqubuzana kunohlelo olusebenzisa i-direct drive kusuka ku-turbine kuya kujeneretha. Ukusebenza kahle okuphelele kohlelo lwe-turboexpander kuvezwa njengephesenti futhi kuyacatshangelwa lapho kuhlolwa amandla angempela e-turboexpander. Amandla angempela e-power (PP) abalwa kanje:
PP = (i-hinlet – hexit) × ṁ x ṅ (2)
Ake sibheke ukusetshenziswa kokunciphisa umfutho wegesi yemvelo. I-ABC isebenza futhi igcina isiteshi sokunciphisa umfutho esithutha igesi yemvelo isuka epayipini elikhulu bese iyisabalalisa komasipala bendawo. Kulesi siteshi, umfutho wokungena kwegesi ungama-bar angu-40 kanti umfutho wokuphuma ungama-bar angu-8. Ukushisa kwegesi yokungena okushisayo kungu-35°C, okushisa igesi kusengaphambili ukuvimbela ukubanda kwepayipi. Ngakho-ke, izinga lokushisa legesi yokukhipha kumele lilawulwe ukuze lingehli ngaphansi kuka-0°C. Kulesi sibonelo sizosebenzisa u-5°C njengokushisa okuncane kokuphuma ukuze kwandiswe isici sokuphepha. Izinga lokugeleza kwegesi levolumu elijwayelekile lingu-50,000 Nm3/h. Ukuze sibale amandla kagesi, sizocabanga ukuthi yonke igesi igeleza nge-turbo expander bese sibala amandla aphezulu okukhipha. Linganisela amandla okukhipha amandla sisebenzisa ukubala okulandelayo: