Kodi ma hydrocarbon (HCs) ndi chiyani?

Ma hydrocarbon (HCs) ndi zinthu zopangidwa ndi maatomu a haidrojeni omwe amalumikizidwa ku maatomu a kaboni. Zitsanzo ndi methane (CH4), propane (C3H8), propene (C3H6, yomwe imadziwikanso kuti propylene) ndi butane (C4H10).

Zonsezi ndi zoyaka moto komanso zopanda poizoni malinga ndi gulu la chitetezo la ASHRAE 34: gulu lawo la chitetezo ndi A3, pomwe "A" amatanthauza "poizoni wochepa" ndipo "3" amatanthauza "poizoni wochuluka".

 

 

Ubwino wa ma HC monga ma refrigerant

Pali ubwino waukulu atatu:

Kuchepetsa kutentha kwa dziko

Ma HC ali ndi kuthekera kochepa kwambiri kwa kutentha kwa dziko lapansi, motero zimathandiza kuchepetsa CO2₂mpweya woipa ngati tigwiritsa ntchito ma hydrocarbon ngati refrigerant.

Yachokera mosavuta ku chilengedwe

Ma HC amachotsedwa m'nthaka, pamodzi ndi mafuta. Malo awo osungira padziko lapansi ndi ambiri. Ndipo n'kosavuta kuwagwiritsa ntchito, chifukwa mtengo wawo ndi wotsika kuposa wa ma refrigerant ena opangidwa.

Kuchita bwino kwa firiji

 Ma HC amagwira ntchito bwino kwambiri poziziritsa/kutentha ngati refrigerant kuposa ena. Ndipotu, kutentha kwawo kobisika kwa nthunzi kumakhala kokwera kawiri kuposa ma refrigerant ena opangidwa, zomwe zikutanthauza kuti kuziziritsa/kutentha kumakhala ndi madzi ambiri omwewo mu refrigerant.

 Kupititsa patsogolo kugwiritsa ntchito bwino mphamvu

Kafukufuku akusonyeza kuti kusamuka kuchokera ku HFC R404A kupita ku refrigerant yachilengedwe ya R290, pa avareji, kungathandize kuti pakhale kusintha kwa mphamvu mpaka 10 peresenti.

Njira yabwino yotenthetsera mpweya m'malo mwa compressor

Mofanana ndi ma refrigerant achilengedwe, pali ma mix atsopano opangidwa omwe amapezeka pamsika omwe ali ndi GWP yotsika, yomwe imadziwikanso kuti A2Ls. Gome (lomwe lili pachithunzichi) likuwonetsa zofunikira zazikulu zomwe ziyenera kuganiziridwa posankha. Chimodzi mwazofunikira izi ndi kutentha, komwe kumakhala bwino mu ma refrigerant achilengedwe, zomwe zikutanthauza kuti sikutenthetsa compressor ngati ma A2L. Mbali iyi imathandizira kuti compressor igwire bwino ntchito komanso kudalirika.