Lets do the Quick Caclulation
Inputs
Actul Flow in m3/hr ?
Design head MWC ?
Operating head MWC ?
Minimum Flow required for safer operating of the pump ?
How the by pass is maintained, using Orifice or control Valve ?
Let Boiler Steam flow rate is 31000 kg/hr
Flow
32.488 m3/hr X 1.05 (design factor) + Min. bypass flow via orifice = 40.87 m3/hr
Head
(Boiler pressure + pr. drop in system ) x 1.05 (design factor) = 207.38 MLC
| SIZING PARAMETERS | ||||||
| Pr. Drop | Flow | Head | Density | |||
| Flow Rate | 31000 | m3/hr | MLC | kg/m3 | ||
| Working pr | 18 | 1.75 | 40.87 | 207.38 | 955.317 | |
| Design Pr | 20 | 1.75 | 40.87 | 228.38 | 995.331 | |
| Temp | 105 | |||||
| Rated Flow | 34 | |||||
| % Bypass | 20 | |||||
Select the pump for 40.87 m3/hr & 207MLC & 228MLC Condition
