KwiJingwei Electric Heating, besisenza izifudumezi ezinyibilikisa ubushushu kwiifriji zorhwebo kangangeminyaka engaphezu kwe-15, kwaye sibone ipateni efanayo kwiiodolo zethu zabathengi baseMbindi Mpuma: ukubalwa kwe-wattage ye-heater enyibilikisa ubushushu, eyenzelwe imozulu epholileyo, rhoqo ayisebenzi kakuhle xa amaqondo obushushu aphakathi efikelela kwi-50°C. Kumava ethu okusebenza neenkampani ze-HVAC eDubai, eRiyadh, naseDoha, sifumanise ukuba iifomyula zobukhulu be-heater enyibilikisa ubushushu - ezithatha umahluko wobushushu obuphakathi kwe-10-15°C phakathi kwengaphakathi le-freezer kunye nendawo engqongileyo - ziyaqhekeka ngokupheleleyo xa amaqondo obushushu aphakathi angama-50°C kwaye ingaphakathi le-freezer likwi--20°C. Umahluko wobushushu yi-70°C endaweni ye-30-40°C eyenzelwe yona iifomyula eziqhelekileyo.

Kule nqaku, siza kwabelana ngedatha yethu yovavanyo evela kwilebhu yethu eShengzhou, apho siye salinganisa iimeko zomoya zasentlango yaseMbindi Mpuma kwi-50°C kunye nomswakama oqhelekileyo we-0% kwaye salinganisa ukusebenza kwe-heater yokunyibilikisa efunekayo ukugcina imijikelo yokunyibilikisa ethembekileyo kwizicelo zefriji zorhwebo. Zonke iingcebiso esizenzayo zisekelwe kwidatha elinganisiweyo evela kwigumbi lethu lovavanyo, kungekhona izibalo zethiyori.

Kutheni iifomula ze-Standard Defrost Heater Wattage zingaphumeleli xa i-Ambient ifikelela kwi-50°C

Kuvavanyo lwethu kwiziko lethu, sichonge isizathu esisisiseko sokuba iifomyula ze-wattage ze-heater defrost ezisemgangathweni zingaphumeleli kwi-50°C ambient: izinga lokudlulisa ubushushu ukusuka kwindawo engqongileyo ukuya kwikhabhathi yefriji liyanda kakhulu ngokwahluka kobushushu. Kwi-25°C ambient ene--20°C ingaphakathi lefriji — umahluko we-45°C — umthwalo wobushushu opheleleyo kwi-coil ye-evaporator umalunga ne-65-75% yomthamo olinganisiweyo we-compressor. Kwi-50°C ambient ene--20°C ingaphakathi lefriji — umahluko we-70°C — umthwalo wobushushu opheleleyo uyanda uye kwi-85-95% yomthamo olinganisiweyo we-compressor. Oku kuthetha ukuba i-coil ye-evaporator iqokelela iqhwa malunga ne-25-30% ngokukhawuleza kwi-50°C ambient kunakwi-25°C ambient, ngokusekelwe kumlinganiselo wethu.

Ukusuka kwidatha yethu yovavanyo, sibale ukuba isifudumezi esiqhelekileyo se-500-watts sokunciphisa ubushushu esinobukhulu obuyi-25°C esinobukhulu obuyi-25°C siya kufuna malunga nemizuzu engama-45 ukugqiba umjikelo wokunyibilikisa kwi-50°C ambient, xa kuthelekiswa nemizuzu engama-28 kwi-25°C. Lo mjikelo wokunyibilikisa ubushushu obuyi-60% obude kumaqondo obushushu aphezulu ambient ukhokelela kwiingxaki ezimbini: ubushushu bangaphakathi befriji bunyuka nge-8-12°C ngexesha lomjikelo wokunyibilikisa ubushushu obude ngokusekelwe kumlinganiselo wethu, onokuthi ubeke emngciphekweni ukhuseleko lokutya kwiindawo zokugcina ukutya ezikhenkcezisiweyo, kwaye ixesha lokunyibilikisa ubushushu obude linciphisa ixesha lokupholisa elisebenzayo elifumanekayo ngeyure, nto leyo enokubangela ukuba isifudumezi singagcini ubushushu baso obumiselweyo ngexesha lobushushu obuphezulu ehlotyeni laseMbindi Mpuma.

Ingcebiso yethu esekelwe kolu lwazi kukunyusa amandla ombane wesifutho esinyibilikayo ngama-25-30% kwiifriji ezisebenza kwiimeko ezingqongileyo ezingama-50°C. Kwi-evaporator coil eqhelekileyo engama-500-watts, sicebisa i-evaporator defrost engama-650-watts. Sivavanye olu qwalaselo kwilebhu yethu kwaye siqinisekisile ukuba ixesha lomjikelo wokunyibilikisa libuyela kwimizuzu engama-28-30 kwi-ambient engama-50°C kunye namandla ombane anyukileyo.

Idatha yethu yovavanyo lokunyuka kobushushu: Ixesha lokunyibilika kweqabaka kwi-45°C xa kuthelekiswa ne-25°C Ambient

Kwilabhoratri yethu kwiziko lethu laseShengzhou, senze uvavanyo lokunyuka kobushushu olulawulwayo ukulinganisa ixesha lokunyibilika kweqabaka kumaqondo obushushu ahlukeneyo. Sibeke umaleko weqabaka oqhelekileyo ongu-3mm ubukhulu — omele iiyure ezi-8 zokusebenza kwefriji eqhelekileyo kumaqondo obushushu angama-50°C — kwikhoyili yokuvavanya i-evaporator efakwe kwi-heater yethu eqhelekileyo ye-aluminium foil defrost. Emva koko silinganise ixesha elifunekayo lokunyibilikisa umaleko weqabaka ngokupheleleyo kumaqondo obushushu aphakathi angama-25°C, 35°C, 45°C, kunye nama-50°C.

Iziphumo zethu zovavanyo zibonisa umkhwa ocacileyo. Kwi-25°C ambient, umaleko weqhwa unyibilike ngokupheleleyo kwimizuzu eli-18. Kwi-35°C ambient, ixesha lokunyibilika landa laya kwimizuzu engama-22. Kwi-45°C ambient, ixesha lokunyibilika landa laya kwimizuzu engama-29. Kwi-50°C ambient, silinganise ixesha lokunyibilika lemizuzu engama-34 - phantse kabini ixesha elifunekayo kwi-25°C ambient. Ukusuka kuhlalutyo lwethu, isizathu esiphambili sexesha lokunyibilika elongezelelweyo kwiqondo lobushushu eliphezulu kukuncipha kweqondo lobushushu phakathi komphezulu we-defrost heater kunye nomaleko weqhwa. Umphezulu we-defrost heater ufikelela kubushushu bawo obuphezulu kancinci kwi-50°C ambient kuba umoya we-ambient ufudumeza i-evaporator coil ngaphambi kokuba umjikelo we-defrost uqale, nto leyo enciphisa ukutshayiswa kokuqala kobushushu okukhawulezisa ukunyibilika kweqhwa kwiindawo ezishushu.

Sikwalinganise ukusetyenziswa kwamandla ngomjikelo ngamnye wokunyibilikisa iqhwa saza safumanisa ukuba amandla apheleleyo afunekayo ukunyibilikisa umaleko weqhwa ayanda malunga ne-35% kwi-50°C ambient xa kuthelekiswa ne-25°C ambient — ukusuka kwiiyure ezili-142 zeewati ukuya kwiiyure ezili-192 zeewati ngomjikelo ngamnye. Olu setyenziso longezelelweyo lwamandla kufuneka lufakwe kwinani elipheleleyo lomthwalo wobushushu wefriji wokufakelwa kweMiddle East, kuba ubushushu obongezelelweyo obuvela kumjikelo wokunyibilikisa obanzi kufuneka bususwe yicompressor ngexesha lomjikelo wokupholisa olandelayo.

Indlela Esiyifumene Ngayo Ifomula Yobuninzi BeeWatt Elungisiweyo Yeziqandisi Zemozulu Yasentlango

Ngokusekelwe kwidatha yethu yovavanyo evela kwimijikelo yokunyibilikisa engaphezu kwama-200 kumaqondo obushushu ahlukeneyo, siye sayila ifomula yoxinano lwe-watt elungisiweyo yezifudumezi zokunyibilikisa ezisetyenziswa kwizicelo zefriji yemozulu yasentlango. Ifomula eqhelekileyo esetyenziswa ngabaninzi abavelisi bezifudumezi zokunyibilikisa isekelwe kuxinano lwe-watt lwe-4-6 W/in² yendawo yomphezulu we-heater, ethatha ubushushu obuphezulu be-32°C.

Ukusuka kuvavanyo lwethu, sifumanise ukuba iifriji zemozulu yasentlango ezisebenza kumaqondo obushushu angaphezulu kwama-45°C zifuna uxinano lwe-watt oluyi-6.5-8.5 W/in² yendawo yomphezulu we-heater ukuze zigcine amaxesha okunyibilika komjikelo angaphantsi kwemizuzu engama-35. Olu hlengahlengiso lonyusa ubushushu bomphezulu we-heater malunga ne-15-20°C ngexesha lokusebenza, nto leyo efuna ukukhethwa ngononophelo kwezinto ukuze kuthintelwe umonakalo ogqithisileyo kwi-evaporator coil fins.

Ifomula yethu ecetyiswayo yokukhetha amandla ombane kwi-defrost heater entlango yile: amandla ombane afunekayo = amandla ombane aqhelekileyo × (1 + 0.012 × (T_ambient – ​​32)), apho i-T_ambient ibubushushu obuphezulu obulindelekileyo kwi-ambient degrees Celsius. Kwi-ambient application ye-50°C, i-multiplier yi-1.216, oko kuthetha ukuba i-heater eqhelekileyo ye-500-watt kufuneka itshintshwe nge-heater ye-610-watt. Kuvavanyo lwethu, le fomula ivelise amaxesha omjikelo wokunyibilika ngaphakathi koluhlu lwemizuzu engama-28-35 kubushushu obuphakathi ukusuka kwi-45°C ukuya kwi-55°C.

Ukukhethwa kwezinto zeSheath: I-Incoloy 800 vs. Intsimbi Engagqwaliyo 304 ye-50°C Salt-Laden Air

Ngokwamava ethu kunye nabakhi be-HVAC baseMiddle East, izinto ezikwishelufu yesifudumezi esinyibilikisayo zihlala zinganakwa ngexesha lokuchazwa, kodwa zibalulekile ekuthembekeni kwexesha elide kwiindawo ezikunxweme olusentlango. EDubai naseDoha, ukudityaniswa kwamaqondo obushushu angama-50°C kunye nomoya ogcwele ityuwa ovela kwiPersian Gulf kudala imeko-bume yokugqwala enokutshabalalisa ishelufu yentsimbi engagqwaliyo engama-304 kwisithuba seenyanga ezi-6-12 zokusebenza.

Ukusuka kuvavanyo lwethu olukhawulezileyo lokugqwala kwiziko lethu, sifumanise ukuba i-Incoloy 800 — i-alloy ye-nickel-iron-chromium — inika ubomi benkonzo obude obuphindwe kathathu ukuya kane kune-stainless steel 304 kwiimeko ze-salt-fog kunye namaqondo obushushu angama-50°C. Idatha yethu yovavanyo ibonisa ukuba ii-sheaths ze-Incoloy 800 zigcina ubunzulu bazo besakhiwo ngaphezulu kweeyure ezingama-3,000 zokuvezwa okuqhubekayo kwe-salt-fog kwi-50°C, ngelixa ii-sheaths ze-stainless steel 304 ziqala ukubonisa ukugqwala emva kweeyure ezingama-800 phantsi kweemeko ezifanayo. Sicebisa i-Incoloy 800 njengesixhobo esiqhelekileyo se-sheaths kwii-heaters ezinyibilikayo ezilungiselelwe ukufakwa kunxweme lwaseMbindi Mpuma.

Ixabiso le-Incoloy 800 limalunga ne-35-45% kune-stainless steel 304, kodwa kuhlalutyo lwethu lwedatha yokubuyiselwa kwewaranti evela kubathengi bethu baseMbindi Mpuma, iindleko zizonke zobunini kwixesha leminyaka emi-5 ziphantsi ngama-20-30% kwi-Incoloy 800 ngenxa yokuncipha kokuphindaphinda kokutshintshwa.

Izinto Esiziqwalaselayo Ngeenkonzo Zombane: 380V vs. 220V kuFakelo lweFrezer yoRhwebo lwaseMiddle East

Ngokwamava ethu okuthumela izifudumezi ezinyibilikayo kubathengi baseMbindi Mpuma, sifumanise ukuba ukukhetha umbane wombane yinto ebalulekileyo echaphazela ukusebenza kwesifudumezi esinyibilikayo kubushushu obuphezulu. Ufakelo lwefriji yorhwebo lwaseMbindi Mpuma lusebenzisa izixhobo zombane zesigaba esinye ezingama-380V okanye ezingama-220V, kuxhomekeke kubukhulu besakhiwo kunye neekhowudi zombane zasekuhlaleni.

Ukusuka kuvavanyo lwethu, i-heater yokunyibilikisa iqhwa engama-380V inika uxinano oluphezulu lwe-watt olumalunga ne-8-10% kwi-nominal wattage rating efanayo xa kuthelekiswa ne-heater ye-220V yesigaba esinye, kuba umbane wesigaba sesithathu ubonelela ngolawulo oluzinzileyo lwe-voltage phantsi komthwalo. Ngokwamava ethu, olu xinano longezelelweyo lwe-watt luluncedo kwiifriji zasentlango kuba lunceda ukugcina amaxesha amafutshane omjikelo wokunyibilikisa afunekayo kwiimeko zemozulu ezingama-50°C. Sicebisa ukuba abakhi be-HVAC baseMiddle East bachaze ii-heater zokunyibilikisa iqhwa ezingama-380V kuzo zonke iifriji zorhwebo apho umbane ufumaneka khona.

Uhlengahlengiso lweXesha leNqamlezo yoMjikelo esilucebisayo kwiiFakelo zaseNtlango

Ukusuka kwidatha yethu yasentsimini eqokelelwe kwiindawo zokufakelwa zaseMbindi Mpuma, siye saqulunqa isincomo sokulungiswa kwesibali-xesha somjikelo wokunyibilikisa iifriji zemozulu yasentlango. Izibali-xesha eziqhelekileyo zokunyibilikisa zihlala zimiselwe imijikelo yokunyibilikisa emi-3-4 ngosuku, umjikelo ngamnye uhlala imizuzu engama-20-30. Ngokwamava ethu, olu lungiselelo alwanelanga kwiindawo zokufakelwa kwemozulu yasentlango apho izinga lokuqokelelwa kweqhwa liphezulu.

Sicebisa ukuba umlinganiselo wokunyibilika ube yimijikelo emi-5-6 ngosuku kwiifriji ezisebenza kumaqondo obushushu angaphezulu kwama-45°C, umjikelo ngamnye umiselwe ukuba uphele kubushushu kunokuba uphele ngexesha. Imijikelo yokunyibilika epheliswe bubushushu — apho isifudumezi sicima khona xa ikhoyili ye-evaporator ifikelela kubushushu obumiselweyo be-15-20°C — isebenza kakuhle kakhulu kunemijikelo epheliswe lixesha kuba ihlengahlengisa ngokuzenzekelayo umahluko kumthwalo weqabaka phakathi kwemijikelo. Sibonile ukuba ukunyibilika okupheliswe bubushushu kunciphisa ukusetyenziswa kwamandla okunyibilika ngokupheleleyo malunga ne-18-22% xa kuthelekiswa nokunyibilika okupheliswe lixesha kwiindawo zokufakelwa kwemozulu yasentlango, ngokusekelwe kwidatha yethu yasentsimini.

Isiphelo: Iifriji zemozulu yasentlango zifuna iinkcukacha zeheater enyibilikayo nezilungisiweyo

KwiJingwei Electric Heating, sifunde ngovavanyo oluthe ngqo kunye namava asentsimini ukuba iinkcukacha zesifudumezi sokunyibilikisa iifriji zorhwebo ezisebenza kwiindawo zasentlango ezingama-50°C zifuna uhlengahlengiso olukhulu kwiinkcukacha eziqhelekileyo zemozulu efudumeleyo. Kumava ethu, indibaniselwano yokwanda koxinano lwe-watt, ukukhethwa kwezinto zesheya ezingamelani nokugqwala, ukhetho lombane lwezigaba ezintathu, kunye nolawulo lokunyibilikisa olupheliswe kubushushu kunokwandisa ubomi benkonzo yesifudumezi sokunyibilikisa amaxesha ama-2-3 kwaye kunciphise ukusetyenziswa kwamandla omjikelo wokunyibilikisa nge-15-20% kwiindawo zokufakelwa kwemozulu yasentlango.

Ukuba ungumkontrakta we-HVAC ochaza izifudumezi ezinyibilikisa ubushushu bokufakelwa kwiifriji zorhwebo zaseMiddle East, iqela lethu lobunjineli linokubonelela ngokubalwa kwamandla ombane kunye neengcebiso zezinto ezisetyenzisiweyo ngokusekelwe kwiprofayili yakho yobushushu obuqhelekileyo. Ndwendwela eyethuiphepha lesifudumezi sefoyile ye-aluminiyamukuze ufunde okungakumbi ngezifudumezi zethu ezinyibilikisayo ezikumgangatho wemozulu yasentlango, okanye unxibelelane neqela lethu ukuze uxoxe ngeemfuno zeprojekthi yakho.

Izikhokelo zokufakela iHeater enyibilikayo kwiikhontraktha zeHVAC zaseMbindi Mpuma

Ngokweemava ethu okuxhasa abakhi be-HVAC baseMiddle East, siphuhlise izikhokelo ezithile zokufakela izifudumezi ezinyibilikayo kwiifriji zorhwebo ezikwimozulu yasentlango. Isifudumezi esinyibilikayo kufuneka sibekelwe kwi-15-20 mm ukusuka kwi-evaporator coil fins ukuze kubonelelwe ngesithuba esaneleyo sokujikeleza komoya ngelixa kugcinwa ubushushu obusebenzayo ukuya kumaleko weqhwa. Isifudumezi kufuneka siqiniswe kusetyenziswa iziqeshana zentsimbi engagqwaliyo endaweni yeziqeshana ze-aluminium, kuba kuvavanyo lwethu iziqeshana zentsimbi engagqwaliyo zigcina amandla azo okubamba kumaqondo obushushu angama-50°C ngelixa iziqeshana ze-aluminium zinokulahlekelwa yi-30% yamandla azo okubamba ngenxa yokwanda kobushushu obahlukeneyo. Uqhagamshelo lombane lwesifudumezi kufuneka lusebenzise i-wiring enomlinganiselo ophezulu wobushushu obuphezulu obulinganiselwe ubuncinane kwi-150°C, kunye ne-silicone rubber insulation ehlala iguquguquka kumaqondo obushushu angama-50°C. Ukusuka kuhlalutyo lwethu lwedatha yokubuyiselwa kwentsimi evela kubathengi baseMbindi Mpuma, malunga ne-25% yokusilela kwe-heater yokunyibilikisa ngaphambi kwexesha kubangelwa kukungagqumi kakuhle kwentambo okuwohloka xa ubushushu bentambo bufikelela kwi-80-90°C ngexesha lomjikelo wokunyibilikisa kunye nobushushu obuphakathi be-50°C, okubangela ubushushu bentambo be-130-140°C obudlula umlinganiselo wentambo esemgangathweni egqunywe yi-PVC. Sifaka izixhobo zentambo zobushushu obuphezulu kwi-heater nganye yokunyibilikisa esiyithumela kubathengi baseMbindi Mpuma, kwaye sinikezela ngomzobo wentambo obonisa indlela efanelekileyo yokuhambisa intambo ukunciphisa ukuvezwa kobushushu kwiindawo ze-heater ezikufutshane.

Uthelekiso Lokusebenza Kakuhle Kwamandla: IiHeater Zethu Ezinyibilikayo Xa Zithelekiswa Neenkqubo Zokunyibilikisa Igesi Eshushu

Kuvavanyo lwethu kwiziko lethu, sithelekise ukusetyenziswa kwamandla kwezifudumezi zethu zombane ezinyibilikisa ubushushu xa zithelekiswa neenkqubo zokunyibilikisa igesi eshushu kwindawo entlango eyi-50°C. Isifudumezi sombane esinyibilikisa ubushushu sisebenzise umyinge weeyure ezili-192 zeewati ngomjikelo wokunyibilikisa, ngelixa inkqubo yokunyibilikisa igesi eshushu isebenzise umyinge weeyure ezingama-265 zeewati ngomjikelo xa kufakwa amandla e-compressor afunekayo ukuvelisa igesi eshushu. Inkqubo yokunyibilikisa ubushushu yombane ikwagqibezele umjikelo wokunyibilikisa ubushushu ngomyinge wemizuzu engama-30 xa kuthelekiswa nemizuzu engama-38 kwinkqubo yegesi eshushu, kuba isifudumezi sombane sinokubekwa ngokuthe ngqo kwikhoyili ye-evaporator ngelixa igesi eshushu kufuneka ifudumeze lonke ivolumu yekhoyili. Ngokusekelwe kwifriji eqhelekileyo yorhwebo esebenza kwindawo engqongileyo engama-50°C enemijikelo yokunyibilikisa iqhwa eyi-5-6 ngosuku, ukonga amandla ngonyaka ngokusebenzisa isifudumezi sethu sombane endaweni yenkqubo yegesi eshushu kumalunga ne-150-180 kWh ngefriji nganye, nto leyo ebonisa ukonga iindleko ezimalunga ne-USD 180-220 ngonyaka kumanqanaba ombane wezimboni aseMbindi Mpuma. Ngokwamava ethu, inkqubo yokunyibilikisa iqhwa yombane ikwafuna ulondolozo oluncinci kuneenkqubo zegesi eshushu kuba akukho zivalvu, ii-solenoids, okanye uqhagamshelo lwemibhobho olunokuvuza kwifriji kwindawo eshushu kakhulu yasentlango.

Izixhobo zokugquma izinto zeHeater Element kwizicelo zeHVAC ezinomswakama ophezulu kwizixeko ezikunxweme lwaseMbindi Mpuma

Ngokusuka kumava ethu okubonelela ngee-heaters ezinyibilikayo kwiikhontraktha ze-HVAC zaseMiddle East, izixhobo zokuvala i-heater ziyimfuneko ebalulekileyo kwizicelo kwizixeko ezikunxweme ezifana neDubai, Doha, kunye neJeddah, apho indibaniselwano yomswakama ophezulu (80-90% unyaka wonke) kunye nokuba khona komoya ogcwele ityuwa kudala imeko-bume erhabaxa kwizinto ze-heater ezivezwe. Eyona ndlela ixhaphakileyo yokusilela esiyibonayo kwezi meko kukungena komswakama kwizinto zokuvala i-heater, nto leyo ebangela ukulandelwa kombane kunye nokungaphumeleli kwe-short-circuit ye-heater.

Ukusuka kuvavanyo lwethu olukhawulezileyo lokusingqongileyo, ukugqunywa kwerabha ye-silicone enobukhulu obuncinci bodonga obuyi-1.5 mm kubonisa ukumelana nokufuma okungcono kwiindawo ezinomswakama ophezulu, kunye nenkungu yetyuwa. Kwigumbi lethu lovavanyo kwi-85°C kunye ne-85% RH kunye nokuchaphazeleka kwenkungu yetyuwa ye-NaCl eyi-5%, izinto ze-heater ezigqunywe yi-silicone zigcine ukumelana nokugqunywa ngaphezulu kwe-100 MΩ emva kweeyure ezili-1,000 zokuvezwa, ngelixa izinto ezigqunywe yi-PVC zehle ngaphantsi kwe-1 MΩ emva kweeyure ezingama-400 phantsi kweemeko ezifanayo. Sicebisa ukucacisa ukugqunywa kwerabha ye-silicone enobunzima be-Shore A obuyi-60-70 kwizinto ze-heater ezinyibilikayo ezenzelwe ukufakwa kwe-HVAC yonxweme lwaseMiddle East. Ixabiso elinyukayo le-silicone ngaphezu kwe-PVC encapsulation limalunga ne-15-25% ngento ye-heater nganye, kodwa kumava ethu, ukwehla kwezinga lokungaphumeleli kwentsimi ukusuka kwi-12% ukuya kwi-2% kwixesha lokufakelwa kweminyaka emi-5 kuyayithethelela ukuphuculwa kwezinto.

Indlela Yokubala Uxinano Lwe-Watt Yezifudumezi Zokunyibilikisa Iqhwa Kwimozulu Eshushu Ngama-50°C Entlango

Ubuninzi be-watts ze-heater enyibilikayo — elinganiswa ngee-watts ngesentimitha yesikwere ngasinye somphezulu we-heater — imisela ubushushu bomphezulu we-heater kwaye ichaphazela ngokuthe ngqo ukusebenza kwe-defrost kunye nobomi benkonzo ye-heater. Kwiindawo zasentlango zaseMbindi Mpuma apho ubushushu obuphakathi ngaphandle kwe-freezer enclosure bunokufikelela kwi-50°C, i-heater enyibilikayo isebenza ngomahluko wobushushu ophantsi kakhulu xa kuthelekiswa nokufakelwa kwemozulu okuphakathi. Ukusuka kuhlalutyo lwethu lobushushu, i-heater enyibilikayo eyenzelwe iimeko ze-25°C ezingqongileyo ezinobunzima be-watt be-1.5 W/cm² iya kufikelela kubushushu bomphezulu we-heater obumalunga ne-180°C kwincopho yomjikelo we-defrost. Kwiimeko ze-ambient ze-50°C ze-50°C, i-heater efanayo iya kufikelela kwi-205°C, edlula ubushushu obuphezulu obuqhubekayo be-PVC-insulated heater leads (elinganiswe kwi-200°C). Sicebisa ukuba kuchazwe izifudumezi ezinyibilikisa ubushushu ezinobunzima obuphezulu be-watt obuyi-1.2 W/cm² zokufakelwa kwe-desert ambient, zidityaniswe neentambo ze-lead ezifakwe i-silicone okanye i-PTFE ezilinganiswe ubuncinane kwi-220°C ngokuqhubekayo. Idatha yethu yentsimi evela kwii-HVAC installations eRiyadh ibonisa ukuba izifudumezi ezichazwe kwi-1.2 W/cm² watt density zifikelela kubomi benkonzo obude obuyi-40% (imijikelo yokunyibilikisa eyi-4,500 vs. imijikelo eyi-3,200) xa kuthelekiswa nezifudumezi eziqhelekileyo ze-1.5 W/cm² kwiimeko ze-50°C ambient.

Izalathiso kunye neMigangatho yoShishino oluNxulumeneyo

1. IEC 60068-2-78 — Umgangatho woVavanyo loBushushu obuManzi
2. Izikhokelo zoYilo lwe-ASHRAE HVAC

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