Heat Exchangers Gamma

Our Hex heat exchangers are designed utilizing the most advanced heat exchanger technology  and only the best quality stainless steel and  copper brazing are used for the production of our units, our manufacturing facility is GB/T19001-200 –ISO9001:2000 certified and our units are listed under UL, ULC for North America as well as TÚV and CE for Europe.



Our combined experience of more than 20 years in the heat exchanger industry, allow us giving the best technical recommendation for our customers and end users for applications such as:

• Refrigeration Systems:
  • Evaporators,
  • Condensers,
  • Economizers and Desuperheaters
    
    
• HVAC
  • Radiant Floor,
  • Snow Melt,
  • Domestic Hot Water and
  • Coil & Fan Heating
    
    
• Other Industrial applications such as
  • Oil Cooling,
  • Heat Recovery and
  • Steam Heating.
    

Please feel free to browse our website, here you will find basic performance information as well as dimensions of  our more than 8 available units to help you decide which one suits your specific needs, off course if you need to contact us please do not hesitate to call or e-mail us.


Luis Orellana- B.Ch.Eng
General Manager
Gamma Canada Ltd. (Hex Heat Exchangers)
Toronto Ontario Canada

Heat exchangers may be classified according to their flow arrangement. In parallel-flow heat exchangers, the two fluids enter the exchanger at the same end, and travel in parallel to one another to the other side. In counter-flow heat exchangers the fluids enter the exchanger from opposite ends. The counter current design is most efficient, in that it can transfer the most heat. See countercurrent exchange. In a cross-flow heat exchanger, the fluids travel roughly perpendicular to one another through the exchanger.

For efficiency, heat exchangers are designed to maximize the surface area of the wall between the two fluids, while minimizing resistance to fluid flow through the exchanger. The exchanger's performance can also be affected by the addition of fins or corrugations in one or both directions, which increase surface area and may channel fluid flow or induce turbulence.

The driving temperature across the heat transfer surface varies with position, but an appropriate mean temperature can be defined. In most simple systems this is the log mean temperature difference (LMTD). Sometimes direct knowledge of the LMTD is not available and the NTU method is used.