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EDR calculations

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baylis
baylis Member Posts: 6
in Strictly Steam
Many buildings in NYC use the steam risers to heat the bathrooms and kitchens.

When calculating the load for a boiler, how do you calculate the EDR for the risers. In my case they are 2 inch pipes, 30 feet in length.

Thank you.

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  • SWEI
    SWEI Member Posts: 7,356
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    Two inch pipe

    measures 7.46" in circumference, or 0.62177 square feet per lineal foot.  30 feet would have an EDR of 18.65 square feet.
  • baylis
    baylis Member Posts: 6
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    Thanks

    Thank You
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