Combustion Air Preheater
Combustion Air Preheater
(OP)
Hi all
My boiler is using medium fuel oil (MFO). We already have economizer installed for cost saving and now to reduce cost further we are planning to install a combustion air preheater to one of our steam boilers. Is combustion preheater effective for cost saving for MFO? I heard air combustion preheaters are good for solid fuel boilers and black liquor only.
Please comment, thanks.
Miss Aida Hanani
My boiler is using medium fuel oil (MFO). We already have economizer installed for cost saving and now to reduce cost further we are planning to install a combustion air preheater to one of our steam boilers. Is combustion preheater effective for cost saving for MFO? I heard air combustion preheaters are good for solid fuel boilers and black liquor only.
Please comment, thanks.
Miss Aida Hanani





RE: Combustion Air Preheater
RE: Combustion Air Preheater
RE: Combustion Air Preheater
They are helpful for any type of boiler, but, of course, increase capital expense
They help improve the heat rate and can lesson the effects of corrosion within the boiler.
There is a good discussion here:
http://www.cleanboiler.org/Eff_Improve/Efficiency/...
Please respect us by completing this informative thread:
Tell us of your final decision and why you made it
MJCronin
Sr. Process Engineer
RE: Combustion Air Preheater
When considering a preheater, especially (possibly only) for solid fuels, you should be careful that it does not increase your combustion temperature to a dangerous level. The concern is raising combustion temperature above the ash fusion temperature and developing problems with clinkers, overheating, etc.
I don't think this applies to the OP but thought it should be mentioned as part of a discussion on preheaters.