CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Modelling fire in engine (http://www.cfd-online.com/Forums/main/4519-modelling-fire-engine.html)

Jens March 11, 2002 07:07

Modelling fire in engine
 
Hi,

Does anyone have an idea of how much heat is generated when a engine catche fire ?

Is it 10 MW, 15 MW or less ?

Kind Regards

Jens

tingguang March 11, 2002 07:55

Re: Modelling fire in engine
 
How much fuel is involved? What is the burning area? What kind of engine? fuel and Sizes? You are asking a question with no solid bases. So your question is difficult to answer.

Tingguang

Jens March 11, 2002 08:00

Re: Modelling fire in engine
 
Hi,

It is a diesel engine from a train.

The fuel tank is locate at a distance from the engine.

The is max. 2 l of diesel at the engine.

Regards

Jens

tingguang March 11, 2002 17:27

Re: Modelling fire in engine
 
It is an easy job now. Find the mass burnning rate of diesel fuel, which is g/s.m^2. The heat of combustion is usually accessible in any fire dynamics book. The dimension is over-all surface. Assume all surface is involved in fire, then total surface area (except the bottom) times mass burning rate times Heat of combustion, you will get firesize. Assume there is no air flow around. You can find some parameters at, or others. D.Drysdale, An Introduction to Fire Dynamics, 1995

Tingguang


All times are GMT -4. The time now is 10:31.