Cut-out Pressure Delta. S = 105 – 80. P2. Cut-in Pressure Delta. S = 25. Factor of Evaporation. Water enters the boiler at 225°F. The boiler pressure is 100 psi and the boiler water temperature is 338°F. The latent heat is 881 Btu.

Get A QuoteBHP X 34.5 ÷ 8.337 ÷ 60 X 1.5 = gpm. (Please note that the 1.5 is, once again, a safety factor.) For the example we have been using the calculation will look like this: 500 BHP X 34.5 ÷ 8.337 ÷ 60 X 1.5 = 52 gpm. Another quick rule of thumb is that 1/10 of a gallon is needed for every boiler horsepower.

Get A QuoteJun 05, 2017 · Calculation formula of effective power of boiler feed water pump 1) Centrifugal pump shaft power calculation formula This is the centrifugal pump: flow × head × 9.81 × medium specific 2) Calculation formula of shaft power of slurry pump

Get A QuoteApr 19, 2021 · Total discharge head = (1248 m + 35 m + 33 m + 52.5 m + 52.5 m) X 1.1 = 1563 meter. Pump rated flow = (Boiler MCR + Blow down %) X 1.25 (Take 25–30% extra margin) = (90 + (90 X 1/100)) X 1.25. = 113.625= 115 M3/hr. The Capacity of flow seems more, it is better to consider 3 pumps 2 running & 1 stand by.

Get A Quote16 Steps to Proper Boiler-Feed-Pump Selection | HPAC

Get A QuoteJun 17, 2013 · - The steam pressure of the boiler (expressed as ft of water) PLUS - The piping, control valve and other losses between the BFW pump and the feedwater inlet to the boiler PLUS - A reasonable margin - for off design conditions. The pressure of 6.5 kg/cm2 is atmospheric pressure at the stack and has nothing to do BFW pump head calculations

Get A Quote16 Steps to Proper Boiler-Feed-Pump Selection | HPAC

Get A QuoteBoiler Piping Flow & Pipe Sizing | HVAC Hydronics

Get A QuoteFor open systems: Pump head = the sum of all friction losses plus the static lift of the fluid plus the pressure head. 2. * The "source unit" is defined as the boiler, chiller, or heat exchanger, which creates the hot or chilled water. Steps in Calculating the Pump Head Basically, we …

Get A QuoteCalculation formula of effective power of boiler feed

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