Fire water demand cellulations for Equipmetns

DescriptionValueUnit
Length (L)m
Width (W)m
Total Surface Area (S)4.4
Rate of Applicationlpm/m²
Theoretical Flow89.76lpm
No Nozzles in RingNos
No of RingsNos
Additional NozzlesNos
Total No Nozzles6Nos
Theoretical Flow per Nozzle14.96lpm
Velocitym/s
PressureBarg
Theoretical K Factor11.83lpm / Sqrt(Barg)
Selected K Factorlpm / Sqrt(Barg)
Actual Flow per Nozzle22.77lpm
Total Water Demand for Equipment136.61lpm
Total Water Demand8.20m³/hr
Specify Margin on Flow%
With Margin9.02m³/hr
Theoretical Riser Size0.99inch
Actual Riser Sizeinch

1 thought on “Fire water demand cellulations for Equipmetns”

  1. Yuvraj chougale

    My suggestions would be:

    Include demand calculations for pumps, tanks, and spheres, along with foam demand calculations, as the rate of application will be different for foam systems.

    Include the surface area calculation formula so that website visitors can understand which formula has been used. Similarly, mention the criteria/formula for determining the number of nozzles per ring and the number of rings.

    Mention some design criteria for deluge valve (DV) sizing with respect to the required flow rate.

    Keep the spray nozzle pressure selection range between 1.4 and 3.5 barg.

    Add a short section covering the criteria for additional nozzle considerations.

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