This is an updated schematic for an automatic pulse width modulated steam governer assembly which will enable you to maximise power by approaching Time = 0.
It is based on the Everyman modular principle and housed within commonly available 150psi rated stainless steel British Standard Pipe fittings.
I do not have time tonight to do a full writeup but you can get cracking with the information in this link:
http://www.energeticforum.com/renewable-energy/2781-wood-gasification-4.html#post210255
I have also developed more advanced versions which are based around the co-axial barrel sealing designs, inverting the outlet to discharge down instead of up. This has been done to integrate the governer assembly with both Pulsometer and Gasifier architecture. When I have the time I will post those schematics.
The eventual aim of this technology integration is to use a gasifier to create a heat source through pyrolysis. The heat causes phase change of water to steam, creating a gas pressure head. The pressure head drives a liquid piston water column which is then used to drive a Turgo turbine (available off the shelf). A permanent magnet alternator coupled to the turbine will convert rotary moment to electricity, thus turning a heat source into electricity, and purified water.
Only serious comments and questions to be posted in this thread please. Feel free to post your own replications and applications of this technology, it is all open source anyway.
Rob