Australia lub Department of Climate Change, Zog, Ib puag ncig thiab dej (DCCEW) tau qhib lub sijhawm sib tham rau pej xeem txog txoj cai xaiv los txo kev siv cov tub yees txias hauv ntiaj teb no hauv kev lag luam tub yees.
DCEW cov lus pom zoo yog tsom rau kev siv txuas ntxiv musR404Arefrigerant (R404a tub yees yog sib xyaw ntawm 44% R125, 4% R134a, thiab 52% 143a) hauv kev lag luam tub yees. Lub tuam txhab tau hais tias cov teeb meem thauj tub yees yuav raug daws "nyob rau theem tom ntej".
DCCEW tau hais tias, "Kev siv cov tub yees R404A tau nce los ntawm 834 tons ntawm xyoo 2020 txog 880 tons hauv 2021."
R404A refrigerant ntshuam tau nce raws li ib feem pua ntawm Australia tag nrho HCFC thiab HFC ntshuam los ntawm 12.6% hauv 2016 txog 16.3% hauv 2021, nrog rau kev lag luam me me hauv tub yees xws li condensing units thiab me racks pab tsav kev xav tau.
Raws li IPCC Sixth Assessment Report tau tshaj tawm xyoo 2021, R404A tub yees muaj 100-xyoo lub ntiaj teb ua kom sov muaj peev xwm ntawm 4728 thiab 20-xyoo lub ntiaj teb ua kom sov muaj peev xwm ntawm 7208.
Khoom siv thoob ntiaj teb ua kom sov muaj peev xwm txwv:DCCEW qhia txog kev ua kom sov thoob ntiaj teb muaj peev xwm txwv rau cov khoom siv tub yees ua ib txoj hauv kev los txwv tsis pub siv R404A.
Self-muaj thiab plug-in coj mus muag khoom:DCCEW pom zoo kom muaj GWP txwv ntawm 150 rau cov khoom siv tshiab no, uas suav nrog, ntxiv rau cov tub yees txias, lub tshuab ua dej khov, cov dej txias, lub tshuab ua kom nws tus kheej muaj qhov kub thiab txias. Nws hais tias hydrocarbons yog cov tub yees tseem ceeb hauv cov khoom siv me me ntawm tus kheej.
Medium-sized coj mus muag tub yees:Cov cuab yeej siv hauv daim teb no feem ntau yog siv R404A, suav nrog cov swb-hauv / embedded stand-alone refrigeration units, coolers thiab condensing units. Lub DCCEW pom zoo GWP txwv ntawm 1500 "rau feem ntau cov cuab yeej tshiab thiab condensing units ntawm hom no" thiab GWP txwv ntawm 2500 rau cov khoom tshiab txias rau −20 degree (−4 degree F) lossis qis dua, thaum kawg yuav raug txo mus rau 1500.
Loj lag luam tub yees:Nws raug pom zoo tias cov cuab yeej tshiab muaj GWP txwv ntawm 150, thiab cov tub yees tseem siv hauv cov tshuab cascade muaj GWP siab dua ntawm 1,500. DCCEW dav txhais cov cuab yeej siv no raws li lub tshuab tub yees siv hauv cov khw loj.
Txheej txheem thiab industrial tub yees:DCCEW hais tias pawg khoom siv no feem ntau siv cov tub yees tsis yog HFCs, feem ntau ammonia R717 thiab carbon dioxide R744, thiab tsis tsim txoj cai xaiv rau lub hom phiaj no.
Ntshuam txwv tsis pub rov siv dua: Kev ntsuas ncaj qha los ntawm DCEW tawm tsam R404A suav nrog kev txwv tsis pub nkag tshiab ntawm R404A lossis txwv HFCs tsuas yog ua haujlwm rau cov khoom siv uas twb muaj lawm.
DCEW kuj pom zoo rau kev tswj hwm ntawm kev siv R404A rov ua dua tshiab los txhawb cov neeg siv kawg los hloov cov khoom qub; nws kuj pom zoo kom zam kev zam los ntawm kev txwv ntshuam thiab rov siv dua, thiab nrhiav kev tawm tswv yim ntawm cov khoom siv uas yuav tsum tsim nyog rau kev zam thiab cov xwm txheej thiab cov xwm txheej uas yuav tsim nyog rau kev zam.
DCEW hu Australia qhov kev thov tam sim no rau R404A "tsis muaj kev vam meej".
