Temp rise across chilled water pump
Temp rise across chilled water pump
(OP)
Friends,
Could anyone please explain how is temperature rise across a chilled water pump calculated?
Could anyone please explain how is temperature rise across a chilled water pump calculated?





RE: Temp rise across chilled water pump
RE: Temp rise across chilled water pump
Tr is the dT across the pump in deg F
e is the efficiency as a fraction
Cp is the heat capacity of the liquid in BTU/lbF
RE: Temp rise across chilled water pump
Tr = h(1/e - 1)/(778*Cp)
RE: Temp rise across chilled water pump
Thanks for the reply.What does 'h'stand for in the formula?Is it the power absorbed by the pump in hp?
RE: Temp rise across chilled water pump
dT = H / (778*Cp*n)
dT = Temperature rise of fluid, deg-F
H = Pump head, Feet
Cp = Specific Heat of the liquid, Btu/(lb-deg F)
n = Pump efficiency, decimal value
This is the theoretical temperature rise of the liquid within the pump at steady state conditions assuming that all the heat generated remains in the fluid.