Air Cross or Cross Flow Brazed PHE
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Liquid to Liquid Brazed PHE
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Air corss / corss flow brazed PHE

Detailed Product Description
Pure Copper Brazed Air Stainless Steel  Cross Flow Heat Exchanger with High Efficiency


Air Cross BPHE is a stainless steel cross flow plate heat exchange which is vacuum brazed with pure copper orĀ  nickel based material as the brazing medium. The top and bottom plates including side A connections are brazed to the plate package. AirCross BPHE is an extremely compact and efficient conventional CBE. The construction ensures that every plate separates the primary (hot) and secondary (cold) fluid. This fact, together with the use of high heat conductivity materials, guarantees high efficiency.

Asymmetrical design
AirCross BPHE is unique as the design is ideal for applications with a smaller flow rate at high pressure on the one
side, (Side A), and a larger flow rate at with lower pressure on the other side. (Side B). The AirCross BPHE offers this optimized asymmetrical design in several ways:

- Different sizes for the connections In and Out
Side A: Round connections
Side B: Totally open with large inlet and outlet surfaces
- Different channel lengths
Side A: 260 mm
Side B: 110 mm
- Different channel areas and volumes
Due to AirCross BPHE special plate design the volume/channel is much bigger on side B than on side A.
Volume/Side A channel: 0, 05l
Volume/Side B channel: 0.121

The first channel against the top plate is a half gas channel side B. The last channel against the bottom plate is also a half gas channel, side B.

Application and Media
Air Cross BPHE is designed for applications with a constant and defined gas flow on one side and medium with higher density on the other side. For such applications Air Cross BPHE offers a thermal efficiency on the side B, and a compactness which is significantly better than other heat exchanger solutions. The high efficiency means that AirCross BPHE can heat or cool the side B fluid to a temperature very close to the incoming temperature of the Side A fluid. Normally AirCross BPHE is used with a liquid on side A and gas on side B.

      Typical media for side A

  • Ethylene or Propylene glycol
  • Water
  • Refrigerants
  • Oil/ Hydraulic-, thermal-, mineral-, vegetable-
  • Other for stainless steel non corrosive liquids

    Typical media for side B

  • Air
  • Flue gas from burning natural gas, biogas, propane, light oil.
  • Exhaust gas from engines using above fuels
  • High pressure gas or air
  • Nitrogen and other not oxidizing media
  • Hot or humid process gases
  • Other for stainless steel non corrosive gases

    System design  
AirCross BPHE can be installed either as a single module or in a system including more than one
Air Cross BPHE. In the latter case the heat exchanger modules can be mounted in parallel or serial configuration on side A and Side B.
Parallel on side B for minimum pressure drop.  Serial on side A for max velocity and turbulence.

2 in parallel and 3 in series for side B/the low pressure flow.

3 in parallel and 2 in series for side A / the high pressure side

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