Pressure Drop in Heat Exchanger and flow at outlet
Pressure Drop in Heat Exchanger and flow at outlet
(OP)
Dear all can any one tell me the what will be the effect on delta P and flow if nos of plate incraeses in a plate type heat exchanger keeping same flow at inlet of the heat exchanger
is there any formula to calculate the exact pressure drop/flow
thx in advance
is there any formula to calculate the exact pressure drop/flow
thx in advance





RE: Pressure Drop in Heat Exchanger and flow at outlet
If you "keep the same flow at the inlet" then the flow at the outlet will be the same. Flow in = flow out.
RE: Pressure Drop in Heat Exchanger and flow at outlet
If you "keep the same flow at the inlet" then the flow at the outlet will be the same. Flow in = flow out.
snip
Called conservation of mass.....must have been sleepin' in Thermo
Heat transfer will increase and pressure drop will increase for the same flow (GPM) through more plates.
RE: Pressure Drop in Heat Exchanger and flow at outlet
the pressure drop is the sum of the pressure drop in the inlet and the plates. You would need know the distribution of the pressure drop to be able to hand calculate the increase by adding more plates.
hope it helps
RE: Pressure Drop in Heat Exchanger and flow at outlet
RE: Pressure Drop in Heat Exchanger and flow at outlet
Adding plates will increase the number of parallel flow paths, reducing pressure drop.
RE: Pressure Drop in Heat Exchanger and flow at outlet
rmw
RE: Pressure Drop in Heat Exchanger and flow at outlet
RE: Pressure Drop in Heat Exchanger and flow at outlet
rmw
RE: Pressure Drop in Heat Exchanger and flow at outlet
conservation of mass apply. or are u talking about a compressible fluid???
RE: Pressure Drop in Heat Exchanger and flow at outlet
Regards,
SNORGY.
RE: Pressure Drop in Heat Exchanger and flow at outlet
what was confusing is :
quoted/
i think as pressure drop reduced so flow rate should be incraese at the outlet as compared to previous condition
unquoted/
RE: Pressure Drop in Heat Exchanger and flow at outlet
For a compressible flow, reducing pressure drop, means lower outlet volume flow.
So Again I agree with Snorgy.
RE: Pressure Drop in Heat Exchanger and flow at outlet
I've seen somewhere that the ΔP is (on the average) an inverse function of Np1.7 where Np is the number of plates.
RE: Pressure Drop in Heat Exchanger and flow at outlet