Pump Input Power = P Formula – 1 Here Q = Flow rate in m3/sec H = Total developed head in meters ρ= Density in kg/m3 g = Gravitational constant = 9.81 m/sec2 η = Efficiency of the pump ( between 0% to 100%) Formula – 2 ...
The energy wasted in the pump is the difference between the required BHP and the hydraulic power. This is the energy converted to heat, Q, in the pump; if expressed in British thermal units per minute, we obtain the following formula: (3.5)Q=42.41Phydr(1ηp−1) where Q = wasted en...
The Formula for PSI: Feet of Head/2.31 = PSI Flow is the volume of water a pump can move at a given pressure. Flow is indicated on the horizontal axis in units like gallons per minute, or gallons per hour, as shown in Figure 2.Fig. 2. A basic pump performance curve for ...
If working in metric units, you need to convert to the appropriate units (cubic meters per second for flow rate and meters for head) and adjust the constant in the formula accordingly. Is it possible for WHP to be zero?Yes, if there is no flow (Q=0) or no head (H=0), WHP ...
This table is based on the Darcy-Weisbach formula: Table 3.6. Velocity and friction head loss in new piping gpmvafbvfvfvfvfvfvfvfgpm Empty Cell 1-in. pipe (1.049-in. ID) Empty Cell 1 1/4-in pipe Empty Cell (1.380-in. ID) 1 1/2-in. pipe 1 0.37 0.11 (1.610-in. ID) ...
Formula("A3+B3")) wb.save('datasheet.xls') os.system("gnumeric datasheet.xls") if __name__ == '__main__': import doctest doctest.testmod() # from lib.corriente import Corriente # agua=Corriente(T=300, P=1e5, caudalMasico=1, fraccionMasica=[1]) # bomba=Pump() # Q=r_[0,...
Model PressureRatio Min inlet pressure (bar) Max inlet pressure(bar) Max outlet pressure(bar) Outlet Pressure Calculate Formula PB Inlet size Outlet size Max flow L/Min (PL=6 bar) OMA02 2:1 1.7 16 16 2PL ZG1/2'' ZG1/2'' 412@PA-6 OMA05 5:1 3.5 40 40 5...
Model PressureRatio Min inlet pressure (bar) Max inlet pressure(bar) Max outlet pressure(bar) Outlet Pressure Calculate Formula PB Inlet size Outlet size Max flow L/Min (PL=6 bar) OMA02 2:1 1.7 16 16 2PL ZG1/2'' ZG1/2'' 412@PA-6 OMA05 5:1 3.5 40 40 5PL ZG1/2'' ZG1/...
from bottom dead center to top dead center is denoted by V0, if the flow path resistance of the outlet flow path is denoted by R, and if flow velocity in the outlet flow path when the actuator produces one cycle of output energy is denoted by Q(T), the following formula is satisfied...
(pBK2), wherein the pilot control value is generated using at least one value of a characteristic curve from the third pressure differential and using the formula (pBK1+pBK2)/2, wherein the characteristic curve is generated using the following equation: Vpwm=vk+v1-vke1-e0·eBKHZ, ...