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Steam coil capacity

Unknown
Unknown
in THE MAIN WALL
I am working on a project where we have three large air handlers, each with a steam heating coil. I want to determine the heating capacity of each of the coils. I know the surface area of the coil face. What other factors do I need to know too determine the coil capacity? Once I determine those factors how do I convert it to a steam capacity - lb/hr or btu/hr?

If I was to select a new boiler for the building would it be sized on the sum total of the capacities of each boiler, or could I size it on the block heating load of the entire building?

Any assistance would be greatly appreciated.

Comments

  • Tony Conner
    Tony Conner Member Posts: 549
    Can You...

    ... get the CFMs off the fans? If you have that, and the inlet/outlet air temps you're looking for, it's an easy calculation. Often, the hardest part is getting the CFM, if it's a retrofit of an old installation.

    #/hr = (CFM X 1.08 X delta-T) / 1,000
  • Unknown
    Unknown


    Thanks Tony,

    The problem is I do not know the inlet and outlet desing temperatures. The inlet temperature is probably around 65 degrees, but I could only guess as to the required discharge air temperature.

    Dave
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