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Heat Exchanger Process
2

Heat Exchanger Process

Heat Exchanger Process

(OP)
Goes easy on the flames please,
   I operate a textile plant that averages 140,000 gallons of fresh water daily at 115gpm the temp is 80F. The plant loses 11% to evaporation so the waste water averages 125,000 gallons daily at 105gpm the temp is 110F. The plant as plenty of storage capacity for both sources. All the water is softened to 0 grains hardness and all temps are gained from direct contact steam.  
   Being in california, there is huge potential to save with the rising natural gas prices. This makes it easier to prove return on investment.
   My questions are,
A) Where can I find the formula's I'll need to determine sizing, number of passes and flow rates for a heat exchanger that will give the best results.
B) Where can I find the formula's needed to determine the amount of heat transfer that can be recaptured. I ask this second question because I can not exceed 100F with the fresh water. I also need to consider the effects that the higher temp will have on the plant process.
   Thanks for you help. Kenny    

RE: Heat Exchanger Process

Unless you plan to "live" in the world of heat exchangers, why go through a big learning curve? Just provide the basic data to HX manufacturers, and let them present some options for your consideration.

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