HFO-1234yf (Refrigerant Gas R1234yf) tuaj yeem siv rau hauv tub yees tub yees, hluav taws kub tua kab mob, hloov tawm cov cua sov, cov ntawv tshaj tawm, cov khoom ua npuas, cov khoom ua npuas, cov roj av e media, ua kom tsis muaj kab mob ntawm tus neeg sawv cev, polymer monomers, tshem tawm cov kua hauv lub cev, cov pa hauv lub cev. , abrasive polishes, hloov lub tshuab ziab khaub ncaws, electrocirculation ua haujlwm dej thiab lwm cov teb.
Cov tshuaj fluorine tub yees muaj lwm txoj kev xaiv, raws li lub ncauj lus kub hauv lub ntiaj teb, xav kom nws cov ozone depletion muaj peev xwm (ODP) yog O, tsev cog khoom nyhuv muaj peev xwm tus nqi (GWP) yog tsawg, thiab lub neej huab cua luv luv li sai tau. Thawj tiam tub yees, HCFC dichlorochloromethane (CCl2F2, CFC-12), thiab lwm yam, tau raug tshem tawm vim ODP nyob li ntawm 1. Raws li thawj tiam, tiam thib ob txoj kev hloov pauv tub yees hloov hydrochlorofluorocarbon chlorofluoromethane (CHClF2, HCFC-22), thiab lwm yam ., nws ODP 0, thiab lwm yam., tseem tab tom raug phased. Lub Cim 2 tub yees HFCs 1,1,1,2-tetrafluoroethane (CF3CH2F, HFC-134a), dav siv hauv tsheb kho cua txias, khoom siv hauv tsev thiab khoom siv tub yees, tab sis kuj siv rau hauv foaming, tua hluav taws, aerosols thiab ntxuav kev lag luam.
Txawm li cas los xij, HFC-134a lub tsev cog khoom nyhuv yog qhov siab heev (GWP - 1300), lub neej huab cua nyob ntev, siv ntau yuav ua rau lub ntiaj teb sov sov, kuj tseem nkag mus rau theem kev suav. Nyob rau hauv lub neej tom ntej, uas cov tub yees yuav hloov los ua HFC-134a? 1, 1-difluoroe (CH3CHF2, HFC-152a), ntuj tsim teb CO2 (R744) thiab 2,3,3,3-tetrafluoropropylene (CF3CF-CH2, HFO-1234yf) yog cov ntsiab lus kub.
HF0-1234yf tuaj yeem siv rau hauv tub yees tub yees, cov tub tua hluav taws, tus neeg sawv cev hloov kub, nruab nrab, propellant, tus neeg sawv cev foaming, tus neeg sawv cev foaming, roj nruab nrab, sterilizing tus neeg sawv cev tus neeg nqa khoom, polymer monomer, tshem tawm cov kua dej, thauj cov pa tawm ntawm lub cev, muaj cov roj polish, hloov tshuab , electrocirculation ua haujlwm kua thiab lwm cov teb.
1 Kev sib piv ntawm cov yam ntxwv ntawm ntau txoj kev siv tub yees txias HFC-152a muaj qis dua GWP ntawm 140, thaum ODP yog 0. Tab sis HFC-152a yog qhov kub nyhiab thiab yuav tsum tau nruab nrog cov cuab yeej hluav taws xob cais theem ob, uas pom meej ntxiv cov nqi ntxiv, yog siv txoj kev lag luam tso tsheb tub yees yuav nce lub tsheb zoo.
CO2 lub tshuab cua txias tau siv rau hauv cov ntawv thov kev lag luam, tab sis tsis yog nyob rau hauv lub tsheb, feem ntau vim tias lub kaw lus yuav tsum muaj kev kub siab (10 zaug qhov kev xav tau siab yog 10 zaug ntawm qhov hFC system uas xav tau) thiab yog li tsis yog qhov kev daws teeb meem zoo. HFO-1234yf raws li tus txiv neej cov khoom tsim tub yees, nrog rau ib puag ncig zoo ib puag ncig, GWP s4, ODP s 0, lub neej kev nyab xeeb kev ua haujlwm (LCCP) qis dua HFC-134a, cov pa paug ua kom zoo ib yam li HFC- 134a. Thiab nws cov haujlwm ua haujlwm zoo dua li HFC-134a. Yog tias HFO-1234yf (Cov Tub Yees 1234yf) siv hloov chaw rau HFC-134a tub yees, cov tuam txhab tsim tsheb tuaj yeem siv cov qub hluav taws xob on-board lub tshuab cua txias (Txawb Cua Txias, MAC) system. HFO-1234yf tau suav tias yog kev cog lus tshiab ntawm kev hloov tsheb tub yees pauv hloov thiab tam sim no tau txais los ntawm cov tuam txhab tsim tsheb hauv Western Europe. Kev nthuav tawm maj mam pib rau xyoo 2011.
Cov yam ntxwv ntawm CO2, HFC-152a thiab HFO-1234yf yog tam sim no piv nrog cov yam ntxwv ntawm HFC-134a, raws li qhia hauv Table 1:
Rooj 1
Cov Lus 1 Raws li tuaj yeem pom los ntawm Rooj Lus 1, GWP thiab cov huab cua nyob ntawm HFO-1234yf muaj qhov zoo ntawm ib puag ncig zoo dua lwm cov tub yees uas hloov HFC-134a. Nws tsis yog raug rau kev sib cuag ua haujlwm, muaj ATL thiab LFL zoo dua, thiab nws qhov kev ua kom tsis taus yog qis dua HFC-152a. Thiab txoj cai thoob ntiaj teb ntawm lub chaw soj ntsuam ywj pheej (SAE thoob ntiaj teb) hFO-1234yf cov tshuaj lom thiab nplaim taws kuj tau soj ntsuam dav, thiab cov koom haum ntawm cov kws tshaj lij thoob ntiaj teb tau ua qhov kev ntsuam xyuas qhov tob, thiab thaum kawg xaus lus tias HFO-1234yf txawm tias muaj kev kub ntxhov, tab sis muaj ntawm cov roj siv xav tau (Qhov kev hloov pauv zoo ib yam li HFC-134a) ua ntej nws tuaj yeem tiv roj. Yog li ntawd, nws muaj kev nyab xeeb los hloov HFC-134a nrog HFO-1234yf hauv lub tshuab cua huab cua.
