Ubwino wa Microchannel Heat Exchangers (MCHEs) Poyerekeza ndi Osinthanitsa Kutentha Kwachikhalidwe (Copper Tube Aluminium Fin Heat Exchangers)
Kuchita Bwino Kwambiri Kutentha Kutentha
Ma MCHE amakhala ndi -matchanelo ang'onoang'ono olowera mkati (nthawi zambiri 0.1-2 mm m'mimba mwake) ndi malo okwera-mpaka{4}}chiyerekezo cha voliyumu. Kapangidwe kameneka kamapangitsa kuti pakhale kukhudzana kwambiri pakati pa zotengera kutentha (monga mafiriji monga R134a kapena R404A) ndi chosinthitsa kutentha, zomwe zimathandiza kuti kutentha kuchuluke ndi 42% kapena kupitilira apo poyerekeza ndi machubu akale a mkuwa{9}}zipsepse. Kuchuluka kwa chipwirikiti cha madzimadzi mu ma microchannels kumachepetsanso kutenthedwa kwa kutentha, kumapangitsa ma MCHE kukhala abwino kwambiri pamagetsi-anthu opulumutsa monga mafiriji ndi makabati owonetsera.
Compact Size ndi Lightweight
Wopangidwa ndi-zinthu zonse za aluminiyamu ndi zomangira zophatikizika-zopangidwa ndi machubu aflat (kudzera msokonezo), ma MCHE ndi ophatikizana komanso opepuka. Pa avareji, amakhala ndi malo ocheperapo ndi 32–51% ndipo amalemera 42–61% kuchepera kuposa mkuwa wakale{7}otengera makina otenthetsera omwe amatha kutengera kutentha komweko. Ubwinowu ndi wofunikira kwambiri pakugwiritsa ntchito malo-ochepera, monga zoziziritsa mpweya pamagalimoto, mayunitsi afiriji, kapena makina apakhomo a HVAC.
Zida Zotsika ndi Ndalama Zoyendetsera Ntchito
Aluminiyamu, zinthu zoyamba za MCHEs, ndizokwera mtengo-zogwira ntchito kuposa mkuwa (chinthu chofunikira kwambiri pakusinthana kwachikhalidwe), kuchepetsa mtengo wazinthu zopangira ndi 20-30%. Kuonjezera apo, ma MCHE amafunika ndalama zochepetsera mufiriji (mpaka 50–70% kucheperapo) chifukwa cha kuchuluka kwake kwa mkati, kutsitsa{{6}ndalama zowonongera nthawi yaitali komanso kutsatira malamulo okhudza chilengedwe padziko lonse (monga F-malamulo a gasi) amene amaletsa kugwiritsa ntchito firiji mopitirira muyeso.
Kudalirika Kwamapangidwe Okwezeka
Njira zotsogola zopangira (monga vacuum brazing kwa onse-zigawo za aluminiyamu) zimapanga mgwirizano wokhazikika pakati pa zipsepse ndi machubu athyathyathya mu MCHEs, kuchotsa mipata yomwe imapangitsa kuti matenthedwe asatenthedwe kapena kuchucha mufiriji-zosinthanitsa zipsepse. Kapangidwe kopanda msokoku kumathandizanso kukana kugwedezeka komanso kuyendetsa njinga zotentha, kumakulitsa moyo wautumiki m'malo osinthika (monga magalimoto oyendetsa firiji).
Kuipa kwa Microchannel Heat Exchangers (MCHEs) Poyerekeza ndi Osinthanitsa Kutentha Kwachikhalidwe
Kukaniza Kochepa kwa Corrosion
Aluminiyamu, ngakhale kuti ndi yopepuka, imakhala yosachita dzimbiri pang'ono poyerekeza ndi mkuwa-makamaka m'malo ovuta (monga malo am'madzi,{3}}malo achinyezi, kapena zopaka zamadzi acidic/alkaline). Popanda zokutira zothira -zoteteza ku dzimbiri (monga zokutira za phenolic resin), ma MCHE amatha kudwala chifukwa cha okosijeni wa aluminiyamu kapena pobowola, zomwe zimafunika kukonzedwa pafupipafupi kapena kusinthidwa m'malo ochita dzimbiri.
Kuvuta Kwambiri Kukonza ndi Mtengo
Mapangidwe ophatikizika, ophatikizika a MCHE amapangitsa kukonza kukhala kovuta. Mosiyana ndi machubu achikhalidwe-osinthanitsa zipsepse (pomwe machubu owonongeka kapena zipsepse zitha kusinthidwa chilichonse), vuto limodzi la ma MCHEs limafunikira kusintha yuniti yonseyo. Izi zimawonjezera ndalama zokonzetsera ndi kuchepetsa nthawi, makamaka pazantchito zazikulu-zamakampani.
Zapamwamba Zoyambira Zopanga Zopanga
Ma MCHE amafunikira umisiri wolondola kwambiri (monga machubu ang'onoang'ono-otulutsa machubu athyathyathya,{3}}kutentha kwambiri kwa vacuum brazing) ndi zida zapadera. Ngakhale kuti ndalama zakuthupi ndizotsika, ndalama zomwe zimapangidwira m'mizere yopangira zimakwera kuwirikiza 2-3 kuposa zomwe zimasinthiratu kutentha. Izi zimapangitsa kuti ma MCHE asamawononge ndalama zambiri-zopanga magulu ang'onoang'ono kapena mapulojekiti ang'onoang'ono{9}}a bajeti.
Kutentha Kwambiri{{0}Kugwiritsidwa Ntchito Kwambiri
Kusungunuka kwa aluminiyamu (pafupifupi madigiri 660) ndi kukhazikika kwa kutentha kumakhala kotsika kusiyana ndi mkuwa (kusungunuka ~ 1085 digiri). M'malo otentha kwambiri-monga ma boiler a mafakitale, -kubwezeretsa kutentha kwa zinyalala), ma MCHE amatha kuchepetsedwa kamangidwe kake kapena kutentha bwino, pomwe zowotchera zamkuwa{7}zimagwira bwino ntchito ngati zili choncho.
Kuzindikira Kusankha Zinthu
Pamene kukula kwa njira ndi <0.5 mm, kusiyana kwa kutentha kwa kutentha pakati pa zipangizo monga mkuwa ndi zitsulo zosapanga dzimbiri kumatha kufika 20%. Zigawo zazikulu za mapangidwe ziyenera kuganiziridwa mozama molumikizana ndi zofunikira zokana kutu.
Flow Channel Shape Gain
Ma tchanelo ovuta kwambiri (monga serpentine/serrated) amawonjezera kutentha kwa 1.2 mpaka 1.4 kuyerekeza ndi ma tchanelo owongoka, koma ndikofunikira kuwongolera malonda-kutsika kwa 15% -25% pakutsika kwamphamvu.
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