Sekuseduze ukuthola ezinye ezizothatha indawo yeziqandisi zesizukulwane sesibili nesesithathu!
Ngomhlaka-15 Septhemba 2021, "Isichibiyelo saseKigali ku-Montreal Protocol on Substances that Deplete the Ozone Layer" saqala ukusebenza eShayina. Ngokusho kwe-"Montreal Protocol", i-refrigerant HCFC yesizukulwane sesibili izoyeka ukusetshenziswa ngo-2030. Lesi sichibiyelo sidinga ukuthi ngo-2050, ukusetshenziswa kwama-HFC emhlabeni wonke kuzokwehla cishe ngo-85%.
Lesi yisenzakalo esiyingqopha-mlando enqubweni yokuqeda ugesi obandayo, futhi sithumela nesibonakaliso esikhulu sezepolitiki sokuthi umphakathi wamazwe omhlaba uzimisele ukuqeda ukusetshenziswa kwama-HFC.
Ngesikhathi esifanayo, ngokusungulwa komgomo wasekhaya "we-dual-carbon" kanye nokuqaliswa kancane kancane kwenqubomgomo yokulawula ama-HFC esiqandisini sesizukulwane sesithathu, kuyaphuthuma ukufunda ama-HCFC, izinto ezithatha indawo yama-HFC kanye nobuchwepheshe obuhlobene.
Isiqandisi singena enkathini yenani eliphansi le-GWP, futhi inkinga yokusha ayinakunakwa!
Ngokuvamile, ukusetshenziswa kweziqandisi ezivuthayo ezinenani eliphansi le-GWP ukuze kuthathelwe indawo i-HCFC kanye namanye amagesi aqukethe i-fluorine kubhekwa njengesixazululo esisebenzayo nesezindleko eziphansi. Kodwa-ke, izifundo zikhombisile ukuthi iziqandisi zendabuko azihlangabezani nazo zonke izidingo zeziqandisi zesikhathi esizayo ze-GWP ephansi, ukuphepha, ukusebenza kwe-thermodynamic kanye nokusebenza kwemvelo ngesikhathi esisodwa.
Ngamanye amazwi, amanani amaningi aphansi e-GWP ayasha!
Izinga likazwelonke elithi "Indlela Yokubala Izinombolo Zeziqandisi Nokuhlukaniswa Kokuphepha" i-GB/T 7778-2017 lihlukanisa ubuthi beziqandisi zibe yi-Class A (ubuthi obuphansi obuhlala isikhathi eside) kanye ne-Class B (ubuthi obuphezulu obuhlala isikhathi eside), kanti ukusha kuhlukaniswe nge-Class 1 (Akukho ukusabalala komlilo), i-Class 2L (okungenzeka kancane), i-Class 2 (okungenzeka), kanye ne-Class 3 (okuvuthayo nokuqhuma). Ngokusho kwe-GB/T 7778-2017, ukuphepha kweziqandisi kuhlukaniswe ngezigaba ezingu-8, okungukuthi: A1, A2L, A2, A3, B1, B2L, B2, kanye ne-B3. Phakathi kwazo, i-A1 iyona ephephile kanti i-B3 iyona eyingozi kakhulu.
Ungayisebenzisa kanjani i-A2L HFO refrigerant ngokuphepha nangokusebenza kahle?
Nakuba ama-air conditioner asekhaya, ama-air conditioner aphakathi kanye neminye imishini yokuqandisa ihlolwe ukusebenza kahle efektri, inani elibhekiselwe leshaja yesiqandisi liyaboniswa. Kodwa-ke, amayunithi amaningi amakhulu okupholisa umoya aphakathi kanye nama-cooler ezimboni kudingeka agcwaliswe nge-refrigerant esakhiweni, njengoba kunjalo ngama-air conditioner asekhaya, imishini yesiqandisi, indawo yokugcina ebanda, njll. ngesikhathi senqubo yokulungisa.
Ngaphezu kwalokho, ngenxa yezinhlobo ezahlukene zama-evaporator asetshenziswa kweminye imishini, ishaja yesiqandisi ihlukile. Ngaphezu kwendawo yokulungisa nokufaka, ngenxa yezimo ezilinganiselwe, izisebenzi eziningi zokulungisa zishaja isiqandisi ngokusekelwe kokuhlangenwe nakho. Ngaphezu kwalokho, imboni nayo ibucayi kakhulu endabeni yokusha kwesiqandisi.
Ngokusekelwe kulokhu, i-Chemours yethule i-R1234yf, i-R454A, i-R454B, i-R454C kanye nezinye izinto eziqandisayo ze-A2L ezingashisi kakhulu, eziphansi kwe-GWP, futhi izibophezele ekukhuthazeni ukwakheka kwesistimu kanye nokuqeqeshwa kwesayensi okuthandwayo ukuxazulula izingozi zokusha.
Izinga lokuphepha le-A2L linezimpawu zobuthi obuphansi (A) kanye nokusha okubuthakathaka (2L). Ama-refrigerant amaningi e-A2L HFO anezici zokusebenza okuphezulu kanye nezimpawu ze-GWP eziphansi, futhi ayizithathi indawo ezifanele zesizukulwane sangaphambilini sama-refrigerant e-HFC. Imikhiqizo ye-A2L ayisetshenziswa kakhulu emakethe yamazwe ngamazwe kuphela, kodwa izinkampani eziningi zasekhaya nazo zisheshise ijubane lokuthuthukisa nokwethula lolu hlobo olusha lwesiqandisi ezinhlelweni zokukhiqiza. Isibonelo, i-Johnson Controls isebenzisa i-Oteon™ XL41 (R-454B) ku-York ® YLAA scroll chiller yayo emakethe yaseYurophu; i-Carrier ikhetha ne-R-454B (okungukuthi, Njenge-refrigerant yayo eyinhloko ye-GWP ephansi, i-Carrier izosebenzisa i-R-454B emikhiqizweni yayo ye-HVAC yokuhlala kanye neyentengiso elula ethengiswa eNyakatho Melika kusukela ngo-2023. Faka esikhundleni i-R-410A.
Isikhathi sokuthunyelwe: Okthoba-23-2021