[Gasification] which one is better

[Michael Redler]

Shelton wrote: "Which one is better- Gasifier based dedicated gas engines or Gasifier based steam turbines for power generation?"

That's an excellent and provocative question!

I don't remember where I picked up these numbers but, I think reciprocating steam engines have a thermal efficiency of 17% and Internal combustion engines (Otto) are somewhere around 25%. I don't know that steam turbines are.

The point I'm getting at is maybe gassifiers can bring boiler efficiency up to the point that all steam technology can compete with IC engines.
   
   Mike

shelton victor <sheltonvictor at yahoo.co.in> wrote:
  hello

Which one is better- Gasifier based dedicated gas engines or Gasifier based steam turbines for power generation

1. what will be the unit cost for power generated for the above both and space occupied, invsetment.
2.the syn gas has to be cooled of before engine--whats the min possible temp the gas can be cooled, what will be the problems it the temperatures go below the recomended gas temp.any waste heat recovery(WHR) possible
3.although the exhaust of gas engine can be done for WHR up to 180 C, but is it viable to generate power using a steam turbine

4. similarly for gasifier based steam turbine the above first cond
5.considering the same power and same fuel for both the cases

have a great time
bye