Njengayo yonke into ekwindalo iphela, iifriji kufuneka zithobele umthetho osisiseko wephysics obizwa ngokuba kulondolozo lwamandla.Undoqo kukuba awukwazi ukudala amandla ngaphandle kwento okanye wenze amandla anyamalale abe ngumoya obhityileyo: ungaze uguqule amandla abe ngezinye iindlela.Oku kuneziphumo ezibaluleke kakhulu kubasebenzisi befriji.
Okokuqala, ikhupha intsomi yokuba unokupholisa ikhitshi lakho ngokushiya umnyango wefriji uvuliwe.Ayonyani!Njengoko sele sibonile, isikhenkcisi sisebenza “ngokufunxa” ubushushu obuvela kwikhabhathi yesibandisi ngolwelo olupholisayo, emva koko impompe ulwelo ngaphandle kwekhabhathi, apho ikhupha ubushushu bayo.Ke ukuba ususa umyinge othile wobushushu ngaphakathi kwefriji yakho, ngokwethiyori, umlinganiselo ofanayo kanye uphinda uvele njengobushushu obujikeleze ngasemva (ukwenza oko, ufumana ubushushu obuninzi obuthe chatha ngenxa yokuba i-motor ayisebenzi ngokugqibeleleyo kwaye iyakhupha. ubushushu).Shiya ucango luvulekile kwaye uhambisa amandla obushushu ukusuka kwelinye icala lekhitshi ukuya kwelinye.
Umthetho wokongiwa kwamandla ukwachaza isizathu sokuba kuthatha ixesha elide kangaka ukupholisa okanye ukukhenkceza ukutya kwisikhenkcisi okanye kwisikhenkcisi.Ukutya kunamanzi amaninzi, enziwe ngeeathom ezikhaphukhaphu kakhulu (i-hydrogen kunye neoksijini zimbini zezona athom zikhaphukhaphu).Nokuba isixa esincinci solwelo olusekelwe emanzini (okanye ukutya) luqulathe aenkuluinani leemolekyuli, nganye kuzo ithatha amandla ukutshisa okanye ukupholisa.Yiyo loo nto kuthatha imizuzu embalwa ukubilisa ikomityi okanye ezimbini zamanzi: zininzi kakhulu iimolekyuli zokufudumeza kunokuba ubuzama ukubilisa into efana nekomityi yentsimbi etyhidiweyo okanye isinyithi esongezelelweyo.Kuyafana nokupholisa: kuthatha amandla kunye nexesha ukususa ubushushu kulwelo olumanzi njengejusi yeziqhamo okanye ukutya.Yiyo loo nto ukukhenkceza okanye ukupholisa ukutya kuthatha ixesha elide.Asikuko ukuba ifriji okanye isikhenkcezisi sakho asisebenzi kakuhle: kukufuna nje ukongeza okanye ukususa izixa ezikhulu zamandla ukwenza izinto ezinamanzi zitshintshe ubushushu bazo ngaphezu kwamadigri ambalwa.
Masizame ukubeka amanani arhabaxa kuyo yonke le nto.Isixa samandla esithathwayo ukutshintsha ubushushu bamanzi sibizwa ngokuba ngumthamo wobushushu obukhethekileyo, kwaye yi-4200 joules ngekhilogram ngeqondo le-celsius.Kuthetha ukuba kufuneka usebenzise i-4200 joules yamandla ukutshisa okanye ukupholisa ikhilogram yamanzi ngeqondo elilodwa (okanye i-8400 joules kwiikhilogram ezimbini).Ngoko ke, ukuba ufuna ukukhenkceza ibhotile yelitha yamanzi (enobunzima obuyi-1kg) ukusuka kubushushu begumbi obuyi-20°C ukuya kwisikhenkcisi esifana ne-−20°C, uya kufuna i-4200 × 1kg × 40°C, okanye i-168,000 joules.Ukuba indawo yokukhenkceza yefriji yakho inokususa ubushushu ngamandla eewatts ezili-100 (i-100 joules ngomzuzwana), oko kuya kuthabatha imizuzwana eyi-1680 okanye malunga nesiqingatha seyure.
Uyabona ukuba kufuneka amandla amaninzi ukupholisa ukutya okumanzi.Kwaye oko, kuchaza ukuba kutheni iifriji zisebenzisa umbane omninzi.Ngokutsho kwe-US Energy Information Administration, iifriji zisebenzisa malunga neepesenti ezisi-7 zawo wonke umbane wasekhaya (ophantse ufane noomabonwakude kunye nezixhobo ezihambelanayo, kunye nesiqingatha esingaphantsi kwe-air conditioning, esebenzisa i-17 ekhulwini).
Itshathi: Ukusetyenziswa kombane wasekhaya xa uphela: Iifriji zisebenzisa isi-7 ekhulwini sombane wasekhaya—ungaphantsi kakhulu kunezifudumezi-moya okanye izixhobo zokufudumeza.Izikhenkcezisi eziphambili zasekhaya zisebenzisa malunga nama-77 ekhulwini ombane osebenza efrijini uwonke, iifriji zesibini zisebenzisa elinye i-18 ekhulwini, yaye ezinye iiyunithi zisebenzisa umbane oseleyo.Umthombo:Ulawulo lweeNkcukacha zaMandla e-US,
Ixesha lokuposa: Nov-02-2022