Microchannel nbung laru galai shai ai ni a akyu ni (MCHEs) Htunghking katsi ai hpe galai shai ai ni hte shingdaw yang (Copper Tube Aluminum Fin hpe galai shai ai ni) hte shingdaw yu ai.
Superior katsi ai hpe htawt sit ai atsam
MCHE ni hta ultra-small kata na lwi ai hka lam (typically 0.1–2 mm) hte npu na n-gun kaba ai shara-}volume ratio ni hpe madun da ai. Ndai hkrang shapraw ai lam gaw, katsi ai shara htawt sit ai lam (R134a (sh) R404A zawn re ai refrigerants zawn re ai) hte katsi ai hpe galai shai ai lam a lapran na matut mahkai lam hpe grau law hkra galaw ya ai, nbung hpe htawt sit ai atsam hpe 42% (sh) dai hta jan nna jat wa shangun ai, htunghking magri mang n-gun-fin model ni hte shingdaw yang. Microchannels ni hta hka a n-gun jat wa ai gaw, nbung n-gun hpe grau nna shayawm ya ai majaw, MCHE ni hpe n-gun atsam-}s ni a matu kaja dik htum rai nga ai, hpaga lam hte seng ai freezer ni hte cabinet ni hpe madun dan ai.
Compact Size hte Nhtoi n-gun
-luminum arung arai ni yawng hte hpawng de da ai fin{1}}flat tube structure (n-gun n rawng ai welding hku nna), MCHE ni gaw grau nna n-gun ja ai hte n-gun n law ai hpe mu lu ai. Rap ra ai hku yu yang, shanhte gaw 32–51% n law ai shara hpe zing la nna, htunghking hku galaw ai magri- hta na 42–61% n law ai hku nna, nbung hpe htawt sit lu ai atsam bung ai. Ndai akyu gaw, mawdaw nbung n-gun, n-gun n-gun shayawm ai jak, shing nrai, nta masha ni a HVAC system ni zawn re ai shara n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun shayawm ai jak ni a matu ahkyak ai.
Arung arai ni hte bungli galaw ai lam hta manu jahpu shayawm ai
MCHE ni a madung arung arai rai nga ai Aluminum gaw, magri (htunghking galai shai ai ni a ahkyak ai daw langai mi) hta grau nna manu jahpu-}effective grau law ai. Dai hta n-ga, MCHE ni gaw, shanhte a kata na n-gun kaji ai majaw, n-gun n law ai refrigerant charge (50–70% du hkra) ra ai (50–70% du hkra) gaw, galu kaba ai- aten galu ai bungli galaw ai lam a matu jai gumhpraw ni hpe shayawm kau nna, mungkan ting na grup yin tara ni hte maren rai nga ai (ga shadawn, F-Gas tara ni) gaw, grai law hkra refrigerant lang ai lam hpe pat shingdang ai.
Hkrang shapraw ai lam hpe grau kaja hkra galaw ai
Hpa majaw nga yang, n-gun ja ai galaw shapraw ai lam ni (ga shadawn, vacuum brazing yawng a matu vacuum brazing) gaw MCHE ni hta nga ai fins hte flat tubes ni a lapran hta n-gun n rawng ai matut mahkai lam hpe shabyin ya ai, htunghking hka htung-fin galai shai ai ni hta nbung n-gun (sh) hka n-gun shayawm ai lam byin shangun ai n-gun n-gun ni hpe yeng seng kau ya ai. Ndai n-gun n rawng ai hkrang gaw, n-gun ja ai hte nbung n-gun hpe ninghkap lu ai atsam hpe mung jat ya ai, n-gun ja ai makau grup yin ni hta ( mobile refrigeration mawdaw ni zawn) magam bungli prat hpe jat ya ai.
Microchannel nbung laru galai shai ai ni a n kaja ai lam ni) Htunghking katsi ai shara ni hte shingdaw yang
Npu na Corrosion ninghkap ai lam
Aluminum arung arai ni gaw, n-gun n law ai raitim, n hkru n kaja ai makau grup yin ni hta (ga shadawn, panglai shara ni, tsaw ai-}humidity shara ni, shing nrai, acidic/alkaline ntsin ni lawm ai jai lang ai lam ni) hta grau nna, n-gun n law ai hpe ninghkap lu ai atsam nga ai). Anti{5}}corrosion coatings (ga shadawn, phenolic resin coatings) n lawm ai sha, MCHE ni gaw aluminum oxidation (sh) pitting ana kap chye ai majaw, grau nna n-gun ja ai masa hta grau nna gram lajang ra ai (sh) galai shai ra ai.
Grau tsaw ai gram lajang yak ai hte manu jahpu
MCHE ni a hpawng de ai, n-gun rawng ai hkrang gaw gram lajang ai lam hpe yak hkak shangun ai. Htunghking hku galaw ai tube-fin galai shai ai ni hte n bung ai (dai shara hta hkra machyi ai tube (sh) fins ni hpe langai hkrai galai mai ai), MCHE ni a microchannel ni hta n kaja ai lam langai mi gaw, unit ting hpe galai shai na matu law law lang ra ai. Ndai lam gaw, gram lajang ai manu hte hkrat sum ai aten hpe jat ya ai, grau nna, hpaga lam hta jai lang ai lam kaba ni a matu.
Shawng ningnan lang galaw shapraw ai lam hta gumhpraw bang ai lam
MCHE ni gaw, hkrak hkrak galaw shapraw ai hpaji masa ni (ga shadawn, Micro{2}} hpe flat tubes, tsaw ai{3}} n-gun n-gun n-gun n-gun n-gun hpe brazing) hte laksan jak ni ra ai. Arung arai manu ni yawm ai raitim, galaw shapraw ai lam ni hta shawng nnan na gumhpraw bang ai lam gaw, htunghking hku katsi ai galai shai ai ni a matu, dai hta na 2–3 lang grau law ai. Ndai lam gaw MCHE ni hpe kaji kajaw n-gun n rawng hkra galaw ya ai-batch galaw ai lam (sh) npu n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun yawm shangun ai.
N-gun n rawng ai High{{0} Laika htingnu hpe jai lang mai ai
Aluminum a hka lim ai shara (660℃daram ) hte nbung n-gun gaw magri (melting point ~1085℃) hta grau npu ai. Hpa majaw nga yang, n-gun ja ai- aten ladaw hta (ga shadawn, bungli galaw ai shara hta n-gun ja ai ni, n-gun kaba ai n-gun n-gun hpe bai gram lajang ai lam) hta, MCHE ni gaw, npawt nhpang n-gun yawm wa ai (sh) nbung n-gun hpe shayawm ya lu ai, rai tim, htunghking magri mang-dai zawn re ai masa ni hta grau kaja ai bungli galaw ai lam hpe matut manoi galaw lu na re.
Arung arai ni hpe lata la ai lam
Channel size < 0.5 mm nga ai shaloi, brass hte stainless steel zawn re ai arung arai ni a lapran na katsi ai hpe htawt sit ai lam shai hkat ai lam gaw 20% du lu ai. Madung hkrang shapraw ai threshold ni hpe gaw, n-gun n-gun hpe ninghkap lu ai atsam ra ai lam ni hte maren, tsep kawp myit yu ra ai.
Flow Channel Shape Gain
15%-25% jat wa ai 15%-25% jat wa ai pressure hkrat sum ai lam hpe rap ra hkra galaw ra ai.
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