Is it more efficient to preheat your feed water?
Is it more efficient to preheat your feed water?
(OP)
If for whatever reason we aren’t having corrosion issues with our feed water at 140F, does it actually save money to use steam produced from that boiler to heat the feed water tank to 180F? Or is it all a wash in the end since we’re talking a 40 degree difference that would’ve been made up in the boiler without excess steam usage
RE: Is it more efficient to preheat your feed water?
You may want to see this PPT presentation . It may give you ideas about energy recovery
Good luck
Pierre
RE: Is it more efficient to preheat your feed water?
It also lessens the thermal stress on the boiler.
But you really need to run the exact numbers (temps and flows) for your situation to see if the project is worth doing.
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P.E. Metallurgy, consulting work welcomed
RE: Is it more efficient to preheat your feed water?
RE: Is it more efficient to preheat your feed water?
RE: Is it more efficient to preheat your feed water?
RE: Is it more efficient to preheat your feed water?
RE: Is it more efficient to preheat your feed water?
In order to properly and accurately answer your question, you must tell us more details about your particular system
You have given us essentially nothing aside from your usage of the word "boiler"
- Small or Big ? .... Size and type of your boiler, fuel, flue gas path, steam generation rate, stable or changing steam demand
- Feedwater into boiler ?.... Describe your system, temperatures, pressures and qualities
- Minimum feedwater temperature ?.... Does your boiler have one ?.... Or is this an ancient 50 year old unit with no records
More information
MJCronin
Sr. Process Engineer
RE: Is it more efficient to preheat your feed water?
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
RE: Is it more efficient to preheat your feed water?
A black swan to a turkey is a white swan to the butcher ... and to Boeing.