Ayini ama-hydrocarbon (HCs)

Ama-hydrocarbon (HCs) yizinto ezakhiwe ngama-athomu e-hydrogen ahlanganiswe nama-athomu e-carbon. Izibonelo yi-methane (CH4), i-propane (C3H8), i-propene (C3H6, eyaziwa nangokuthi i-propylene) kanye ne-butane (C4H10).

Zonke lezi ziyavutha futhi azinabo ubuthi ngokwesigaba sokuphepha se-ASHRAE 34: isigaba sazo sokuphepha yi-A3, kanti u-“A” usho “ubuthi obuphansi” kanye no-“3” usho “ukuvutha okuphezulu”.

 

 

Izinzuzo zama-HC njengeziqandisi

Kunezinzuzo ezintathu eziyinhloko:

Amandla okushisa komhlaba aphansi

Ama-HC anamandla aphansi kakhulu okufudumala komhlaba, ngakho-ke kusiza ekunciphiseni i-CO2₂ukukhishwa kwegesi uma sisebenzisa ama-hydrocarbon njengesiqandisi.

Ivela kalula emvelweni

Ama-HC akhishwa enhlabathini, kanye namafutha. Izinsalela zawo eMhlabeni zinkulu kakhulu. Futhi kulula ukuzithinta, ngoba intengo yazo iphansi kuneyezinye iziqandisi zokwenziwa.

Ukusebenza okungcono kwesiqandisi

 Ama-HC asebenza kahle kakhulu ekupholiseni/ekufudumezeni njengesiqandisi kunezinye. Eqinisweni, ukushisa kwawo okucashile kokuhwamuka kuphakeme ngokuphindwe kabili kunezinye iziqandisi zokwenziwa, okusho umphumela wokupholisa/wokufudumala ophezulu onokugeleza okufanayo kwesisindo sesiqandisi.

 Ukuthuthukiswa kokusebenza kahle kwamandla

Izifundo zamacala zibonisa ukuthi ukufuduka kusuka ku-HFC R404A kuya ku-refrigerant yemvelo i-R290, ngokwesilinganiso, kungavumela ukuthuthukiswa okufika kumaphesenti ayi-10 ekongeni amandla.

Umbuso ongcono wokushisa othanda i-compressor

Ngokuhambisana nama-refrigerant emvelo, kunezingxube ezintsha zokwenziwa ezitholakala emakethe ezine-GWP ephansi, eyaziwa nangokuthi ama-A2L. Ithebula (elisesithombeni) libonisa izindlela eziyinhloko okufanele zicatshangelwe lapho kufinyelelwa esinqumweni. Enye yalezi zindlela yindlela yokushisa, engcono kuma-refrigerant emvelo, okusho ukuthi ayifudumezi i-compressor kakhulu njenge-A2L. Lesi sici sisiza ekusebenzeni kahle kwamandla kanye nokuthembeka kwe-compressor.