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Servicewiz_3
Servicewiz_3 Posts: 76
in Strictly Steam

How is Lbs. steam/hr. converted to BTU/hr.?

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  • mattmia2
    mattmia2 Posts: 18,233

    It will depend on the pressure of the steam because higher pressure steam will be at a higher temp.

  • 109A_5
    109A_5 Posts: 4,617
    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    mattmia2
  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,169
    edited September 10

    If it is low pressure steam under 15 psi use 970 btu/lb of steam. Everyone rounds it off to 1000btu/lb which is close enough.

    Other than that look for a steam chart on the internet you don't have to calculate anything. It will give you the BTU/lb at different pressures. I found one see the attached

    armstrong-steam-tables.pdf

    Use the latent heat column. The change of state is the useable heat

    mattmia2

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