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Anonymous Poster #1

Engine Exhaust Temperature & CFM

09/29/2011 8:58 AM

I really appreciate if technical & smart people in the (Deisel utility) control room if they could share info. I am currently having difficulty with my design with out knowing the parameter values for T & cfm.

I intend to design an economizer or a heat scavenging system for an undergrad paper, I just don't know the range of engine exhaust temperature and CFM/KW rating ratio.

I will be very thankful if you could give me also links for the literatures. Thanks, it is really a great help.

Regards,
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lyn
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Join Date: Oct 2008
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#1

Re: Engine Exhaust Temperature & CFM

09/29/2011 10:32 AM

Diesel exhaust 540-650°C. (From Engineers Tool Box)

CFM/KW ratio depends on too many variables. Ask a manufacturer.

We try not to do people's homework for them.
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bravo88
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#2

Re: Engine Exhaust Temperature & CFM

09/29/2011 11:44 AM

Lyn gave you the exhaust temperature. Cfm/kw can be calculated from spec sheet. you know Kw, engine capacity, rpm, number of cylinder, it is a 4 stroke engine,, google the stoicometric combustion equation of diesel and oxygen composition of air, so cfm/kw is a simple calculation.

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English Rose
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#3

Re: Engine Exhaust Temperature & CFM

09/29/2011 7:21 PM

What size engine are you talking about? Truck and bus engines, especially in Europe, run much cooler than the temps given by Lyn. Some have Tmax of around 300°C.

Google some manufacturers - many of them have engine specs on line. That's how we, who work in this industry get a fair chunk of our information!

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