Microchannel Heat Exchangers (MCHES): Data Center efficiency atan CRAC condenser thlak danglam theih a ni.
Data center tan chuan computer room air conditioner (CRAC) condenser te hi server performance vawn that leh PUE (power hman tangkai dan) tihhniamna atana break-or-Break siam a ni. Traditional tube-fin heat exchanger te hi an tawi fo thin-an bulky, inefficient, leh high-maintenance an ni. LutMicrochannel Heat Exchangers (Mches) 1.1.: Microscale flow channels (0.1–2 mm) hmanga engineer a ni a, integrated all-aluminum structure, leh vacuum brazing hmanga siam a ni a, MCHes hian data center hnathawhna atana thil pawimawh tak tak a thlen laiin heng pain point te hi a solve a ni. A hnuaia tarlan te hi an langsar hle a, chubakah an impact tihpunna tur custom tweaks te pawh a awm bawk.
Core application thatna: Data center-a pain point lian ber berte chinfel dan
MCHes hian traditional condensers- data center-te tana efficiency, space, cost, leh reliability lam hawia thil awm thei tur chu an redefine leh mai mai lo.
1. 30–50% Heat transfer efficiency sang zawk=PUE hniam zawk
Data center te hian PUE hi 1.3- hnuai lam a nih theih nan an bei a, MCHes te hi ralthuam thup a ni. An microscale channel te hian massive specific surface area (200–350 m2/m3, 2–3x chu tube-fin models te nen an siam a, refrigerant (R134A emaw R410A ang chi) chu turbulent flow chak takah a hruai lut a (Reynolds number re > 2300). Hei hian thermal resistance a slash a, heat transfer coefficient chu 400–600 W/(M2·K) (VS. 200–300 w/(m2·K) tan tube-fin atan a nawr a ni).
Hei hian i tan eng nge a awmzia: 100 kW cooling load atan chuan MCHes chuan condensing temperature chu 3–5℃in an cut a . 1℃a tlahniam apiangin compressor power hman dan chu 2–3% in a tihhniam a, CRAC energy hman tlem 25–35% ah a letling a ni. 1000 m2 medium data center tan chuan kum khat chhunga electrical savings-leh PUE chu 1.4 atanga 1.25 hnuai lamah a tlahniam a, chu chu 30,000–42,000 kWh a ni.
Perfect for: High-Density data center (power density > 300 w/m2) emaw retrofitting CRAC unit hlui retrofitting (cooling tihpun nan hmun zauh a ngai tawh lo).
2. 30–50% a te zawk, 40–60% a rit zawk: Data center space hlu tak humhim rawh
Data center floor space hi a man a to- leh traditional tube-fin condensers te chu a tichhia a ni. MCHES’ All-Aluminum flat-Tube + Integrated Fin Design hian BLOAT tube-fin models bloat tube-a bulky copper bends leh fin gap awmte chu a ti bo vek a ni.
100 kW air-cooled setup atan:
Volume: MCHes hian ~0.8 m3 (VS. 1.2–1.3 m3) chu tube{{3}fin tan) a la a, rack side emaw corner emaw-ah awlsam takin a fit thei.
Weight: ~80 kg (vs. 150 kg for tube-fin) ah chuan MCHes hi rooftop CRAC units tan a tha ber-Building load leh installation cost tihtlem (heavy lifting gear mamawh a ni lo).
3. 50–70% Refrigerant tlem zawk: Cost tihtlem & boruak dan phuhruk
R410A ang chi refrigerant te hi a man a to a, a regulate bawk (EU-in F-GAS regulation a siam avang leh ChinaGreen leh Low-Carbon rating evaluation chu data center hrang hrangah a awm a.tih chu ). MCHES-a channel volume te tak te (tube-fin-a 1/3–1/2) chuan refrigerant a mamawh a:
R410A hmanga 100 kW system chuan refrigerant kg 2.5–3.5 chauh a mamawh (VS{4}}–10 kg for tube-fin)-unitfront-a unit khatah ~300–390 CNY a chhanhim thei.
Leak point tlem zawk (tube aiin 40% in a tlem zawk-fin, integrated headers vangin) hian environment risk a hniam zawk a, refrigerant top-ups man to tak tak a awm lo.
4. Corrosion Resistance & Darkar 10,000 chhunga MTBF: CRACS chu 24/7 in a tlan tir thin.
Data center te chu nonstop- leh downtime an kal a, chu chu catastrophic a ni. Traditional tube-fin condensers hi copper-aluminum galvanic corrosion vangin a hlawhchham hma a, mahse MCHes hi a awm reng theih nan an siam a ni:
Seamless structure: Vacuum brazing hian "copper-aluminum gaps" (corrosion trigger lian tak) a ti bo a ni.
Custom Coatings: Epoxy emaw Polytetrafluoroethylene coatings (20–50 μm thick) hian salt spray resistance chu darkar 500 atanga darkar 1500 aia tam a tichak thei.
A result chu? MTBF (mean time between failures) chuan darkar 10,000-tube aiin a let hnih velin a thleng-fin (darkar 5,000–6,000) a ni. Maintenance tlem zawk=i data center tan downtime tlem zawk.
Custom Technical Adaptations: MCHES hi i CRAC tan hnathawk turin siam rawh
MCHes hi "drop{{0} in" thlak danglamna a ni lo-Cracs mamawh bik nena inmil tur chuan tweak an mamawh a ni. Data center hrang hrang tan kan optimize dan chu hetiang hi a ni:
1. Smart design a ni a, load a inthlak danglam thei a, a ri a hniam bawk.
Multi-Chhungkaw kal tlanga kal theih a ni.: Server hian nitin spike a load a, zan lamah a tla thla thin. MCHes hian 2–4 section flow channel an hmang a, electronic expansion valve nen an paired a, refrigerant flow siamrem nan: peaks tan full capacity, lulls tan partial capacity. Hei hian traditional single-pass condensers te tihbuaitu "low{{4}load inefficiency" chu a pumpelh a ni.
Fins ngawi reng .: Data center-te chuan 60 dB (a) aia tlem emaw, a tlukpui emaw noise an mamawh a ni. MCHes hian narrow-Pitch louvered fins (1.8–2.2 mm spacing) leh low-Airflow fans (1.5–2.0 m/s)-noise 3–5 db (a) vs. tube-fin, so (operation leh maintenance) te chu undisturbed in an hmang thin.
2. (Corrosion & Clogging Protection): Data Center boruak atana siam
Dust, UPS Battery Fumes, leh Water Scaling te hi data center hlauhawmna an ni-Mches te hian head-on:
Dual-Layer Anti-Corrosion Coating: Chromate passivation (5–10 μm) hian adhesion a tichak a, epoxy top layer (20–30 μm) chuan corrosive media a block thung. Test-ah chuan data center-ah kum 8 chuang rust a do thei tih hmuhchhuah a ni.
Tui-side clogging fixes (tui atan{1}}cooled cracs): MCHE channels (1–2 mm) te hi scaling an nei awlsam-chuvangin kan add ang:
100-mesh stainless steel inlet filter hmangin bawlhhlawh te chu a man thei a ni.
Tapered channels (1 mm inlet → 1.5 mm outlet) atanga flow-scale siamtu spike te tihtlem nan.
Food-Grade scale inhibitor (eg, polycarboxylic acid) te chu tihfai hun chhung thla 12 thlenga tihzauh theih a ni (tube-fin tan thla 12 thleng) a ni.
3. Seamless Crac Integration: Bawlhhlawh awm lo, leak awm lo
MCHes hian CRAC systems-a connection zawng zawng kan optimize chuan a thawk tha ber:
Fan matching .: MCHE fins hian tube-fin aiin boruak resistance 15–20% in a hniam zawk. Low-Static-pressure fans (50–80 PA) leh cap speed 1400 rpm aia tlem emaw a aia tlem emaw a cap speed te kan hmang a, chu chuan cooling te chu a tichhe lovin energy a humhim thei a ni.
Leak-a chhunga thil awm thei lo (proof interfaces .: Headers Integrated chuan interface count chu 8–12 (Tube{2}fin) atanga 2–4 ah a cut a. Double-Ferrule seals hian leakage chu 1×10⁻⁹ PA·M3/s aia tlem emaw, a tlukpui emaw a vawng reng a (per helium leak tests){{8} refrigerant himna atan critical a ni.
Engvangin nge MCHes hi Crac Condensers hmalam hun tur a nih .
Data center tan chuan MCHes hi heat exchanger tha zawk-sustainability goal khungna tur, cost tihtlem, server rintlak taka kalpui theihna tur a ni mai lo. High-density facility sang tak i siam emaw, CRAC hlui upgrade emaw pawh nise, MCHes hian efficiency, space savings, leh durability i mamawh chu a pe chhuak a, chu chu inelna nei reng turin a ni.
I Crac Condensers te chu a thlak danglam thei em? MCHES hian i PUE a tihhniam theih dan tur chhui la, vawiin hian i data center performance tihsan rawh.
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