Zithini iihydrocarbons (iiHCs)

Iihydrocarbons (HCs) zizinto ezenziwe ziiathom zehydrogen ezidityaniswe neeathom zecarbon. Imizekelo yimethane (CH4), propane (C3H8), propene (C3H6, ekwaziwa ngokuba yipropylene) kunye nebutane (C4H10).

Zonke ezi zinto ziyatsha kwaye azinabungozi ngokwendlela yokhuseleko ye-ASHRAE 34: udidi lwazo lokhuseleko yi-A3, apho u-“A” ethetha “ububi obuphantsi” kunye no-“3” ethetha “ububi obuphezulu”.

 

 

Iingenelo zeHCs njengeefriji

Kukho iingenelo ezintathu eziphambili:

Amandla okunciphisa ukufudumala kwehlabathi

IiHCs zinamandla aphantsi kakhulu okufudumala kwehlabathi, ngoko ke zinceda ekunciphiseni i-CO2₂ukukhutshwa kwezinto ezikhutshwayo ukuba sisebenzisa ii-hydrocarbons njengefriji.

Ivela ngokulula kwindalo

IiHC zikhutshwa emhlabeni, kunye neoyile. Iindawo ezigciniweyo eMhlabeni zininzi kakhulu. Kwaye kulula ukuzicofa, kuba ixabiso lazo liphantsi kunelezinye iifriji ezenziwe ngokwenziwa.

Ukusebenza ngcono kwefriji

 Ii-HC zisebenza kakuhle ekupholiseni/ekufudumaleni njengefriji kunezinye. Enyanisweni, ubushushu bazo obufihlakeleyo bokufuma buphindwe kabini kunezinye iifriji zokwenziwa, oko kuthetha ukuba isiphumo esiphezulu sokupholisa/sokufudumeza esinokuhamba kobunzima befriji efanayo.

 Ukuphuculwa kokusebenza kakuhle kwamandla

Izifundo zetyala zibonisa ukuba ukufuduka ukusuka kwi-HFC R404A ukuya kwi-refrigerant yendalo i-R290, ngokomndilili, kunokuvumela ukuphucuka kokugcina amandla ukuya kuthi ga kwi-10%.

Ulawulo olungcono lobushushu oluhambelana ne-compressor

Ngokuhambelana neefriji zendalo, kukho imixube emitsha eyenziweyo ekhoyo kwimarike eneGWP ephantsi, eyaziwa ngokuba zii-A2L. Itheyibhile (eboniswe kwifoto) ibonisa iikhrayitheriya eziphambili ekufuneka ziqwalaselwe xa kufikwa kwisigqibo. Enye yezi khrayitheriya yindlela yobushushu, engcono kwiifriji zendalo, oko kuthetha ukuba ayifudumezi icompressor njengee-A2L. Le nkalo inegalelo ekusebenzeni kakuhle kwamandla kunye nokuthembeka kwecompressor.