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◎ Heat Pump Microchannel Coil

heat transfer in microchannels Microchannel Heat Transfer

Microchannel Heat Transfer

1. Introduction
MCHEs have an ingeniously simple design-made entirely of all aluminium which is not only lightweight but also prevents galvanic corrosion. The refrigerant-carrying tubes are formed to optimise heat transfer, thus enabling the production of more compact, but equally effective cooling solutions. Meanwhile, their smart louvred fin design maximises surfacecontact, successfully reducing the air-side pressure loss, improving efficiency and reducing noise levels.
2. Benefits
a. Compact Design
b. MCHE's hold-up volume is a full 77% lower than that of an F&T coil
c. MCHEs weigh 68% less than equivalent F&T coils.
d. All aluminium material prevents the galvanic corrosion
e.Great air-side heat transfer efficiency
f. Brazed tube to fin joint
g. MCHEs are very easy to clean
h. Lower pressure drop per unit heat transfer
i. Price stability
j.Low noise levels
k.Design flexibility
3.Technical Data

Model

Coil length

Coil height

Coil Depth

Fin pitch

Inlet ID diameter

Outlet ID diamater

Min/Max Working Temperature

Max working pressure

SP009

565(mm)

509(mm)

12(mm)

1.15(mm)  22(FPI)

9.52(mm)

9.52(mm)

’-30℃/121℃

4.5MPa

4. Material
Flat Tube: AA3102/H122
Inlet/outlet Tube: AA3003 and TP2
Manifold:   AA3003-H14clad with AA4343
Fin:  AA3003 clad with AA4343
Side Plate: AA1050
5.Typical Applications
1.Residential air conditioning
2.Commercial cooling applications, including chillers and rooftop units
3.Refrigeration applications, including retail food storage and bottle cooling
4.Transportation (e.g., refrigerator trucks)
5.Machine Room air conditioning
6.Car air conditioning

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