Condensing economizer materials with biogas
Condensing economizer materials with biogas
(OP)
We are considering installing a condensing economizer on a NG fired boiler which will also be fired with 10% biogas. Concern is H2S, with approximately 400 ppm H2S in condensate. Materials proposed are 304 SS tubes and 1100 Al fins. Is this a proper application, or do we need to go to 304 or 316 SS fins and/or tubes?





RE: Condensing economizer materials with biogas
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Plymouth Tube
RE: Condensing economizer materials with biogas
RE: Condensing economizer materials with biogas
RE: Condensing economizer materials with biogas
RE: Condensing economizer materials with biogas
What exactly are you doing with this economizer? Typically, a economizer is used to raise feedwater inlet temperature to the boiler to improve cycle efficiency. In this case are you simply cooling boiler exit gas temperature using a stand alone economizer? Also, what is your definition of low pressure? If it is greater than 15 psig, this must be designed to ASME B&PV Code, Section I or Section VIII requirements, if installed in the US.
RE: Condensing economizer materials with biogas
RE: Condensing economizer materials with biogas
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Plymouth Tube
RE: Condensing economizer materials with biogas
RE: Condensing economizer materials with biogas
rmw
RE: Condensing economizer materials with biogas