[Gasification] Question: Connecting a gasifier to a microCHPunit

[Tom Miles]

If you search the gasification website for stirling you get:
http://gasifiers.bioenergylists.org/search/node/stirling

Also select the small/microCHP tab:
http://gasifiers.bioenergylists.org/smallchp

The only work I know of using producer gas and stirling engines was by
Henrik Carlsen at Danish Technological University which led to the formation
of Stirling Danmark
http://www.stirling.dk/

They developed a special heat exchanger for producer gas. They claim that
using wet wood in an updraft gasifier: "Typically, a plant with a 200 kW
wood chips consumption will generate around 35 kWe power and 145 kW heat.
The capacity of the updraft gasifier can easily be increased where several
Stirling engines can be fuelled. Plant sizes with electrical outputs of 300
kW or more is thus possible." That's 17.5% based on lower heating value
which would be comparable to a spark ignition engine. This was based on
testing at Harbore in Denmark. They also have 45 kWe and 85 kWe engines that
have been used on wood for a few years.  
http://www.stirling.dk/default.asp?ID=142

A few years ago the target price for a gasifier=stirling system was about
3000 EUR/kW or about USD $4000/kW

I don't know the current activities of the company.

Tom Miles