heat exchanger size and flow
heat exchanger size and flow
(OP)
We want to change our actual heat exchanger that has the following specs:
SQ.FT: 250
Tube diameter: 3/4"
# tubes: 250 tubes
Length of tubes: 5 feet
For a bigger exchanger, with the following specs
SQ.FT: 338
Tube diameter: 1"
# tubes: 261 tubes
Length of tubes: 5 feet
How is our flow going to be affected?
thanks for your help on this one
SQ.FT: 250
Tube diameter: 3/4"
# tubes: 250 tubes
Length of tubes: 5 feet
For a bigger exchanger, with the following specs
SQ.FT: 338
Tube diameter: 1"
# tubes: 261 tubes
Length of tubes: 5 feet
How is our flow going to be affected?
thanks for your help on this one





RE: heat exchanger size and flow
Patricia Lougheed
******
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RE: heat exchanger size and flow
Note that G=mass/(time * area)
Your pressure drop will change by 0.8 power
RE: heat exchanger size and flow
RE: heat exchanger size and flow
Through no fault of mine, the link did not upload.
I also misread my chart.
The heat transfer coefficient is proportional to G2/G1 to the 0.8 power.
Pressure drop is proprotional to G2/G1 to the 1.8 power.
G is mass flux i.e lb/hr-ft2
RE: heat exchanger size and flow
Chance17: I still cannot open your file...
vpl: how can i apply the q=mxcxAT formula, are the q are AT equal for both exchangers?
RE: heat exchanger size and flow
Or - talk to the vendor...
Best regards
Morten
RE: heat exchanger size and flow
good luck!
-pmover
RE: heat exchanger size and flow
h
Best regards