gas turbine combustor pressure loss

[astro28]

Can anybody recommend me a a book (or science paper) on calculating pressure losses in gas turbine combustors?

Thank you.

 

[Feric]

Hi there:

There is a rule of thumb rule that can be applied -- it is up to 5% of the combustor inlet pressure.

http://engware.i-dentity.com

 

[astro28]

Yes, but I am interested in methods of calculating it.


Thank you.

 

[Feric]

astro28:

Most of the time it is an emperical relationship.

The best thing is to go with a rule of thumb.

Later on, if you have the capability and equipment, you can measure it.

Also, if you know the equipment vendor, check with the vendor -- they should be able to provide you with some tables and charts.

Today, the vendor might have it on the web site ...

Thanks,

Gordan

http://engware.i-dentity.com

 

[astro28]

Actually I have searched numbers of papers and books, and I didnt find any good calculation method at all.


Thank you.

 

[Feric]

astro28:

Well, that is the reason why I have been referring to the rule of thumb approach.

Anyway, the precise pressure loss calculation should not slow you down in your work as long you know how much it is ...

Thanks,

Gordan

http://engware.i-dentity.com

 

[gtsim]

You can try Gas Turbine Combustion by Lefebvre or Gas Turbine Theory BY Saravanamutoo, Rogers and Cohen. They cover it quite well.

 

[astro28]

Actually I tried and they do not help, because these formula are too general. There is no correlation for static pressure at the hole exit to the static pressure downstream (in the flame tube).