[Gasification] Rebuilding engines (was Re: Charcoal Gasifier No 2.)
Ken Boak
kenboak at stirlingservice.freeserve.co.uk
Wed Aug 1 10:22:02 EDT 2007
Harmon, List
My last post got sent before completion.
All steam generating boilers of a certain volume and pressure need testing
and certification. It is a matter of common sense. There was a fatal steam
traction engine at a farm show a few years back. Drivers of these vehicles
also need to be licensed because of the inherent risks.
I think that if you make enquiries, you will find that most States have
pretty strict rules and legislation regarding the use of steam boilers, and
steam equipment.
Only the monotube boiler which has a very low water volume might get past
the boiler certification rules.
The household "Boiler" is a misleading term. Most are water heaters for
producing hot water at around 85C. If it did boil the water, the pressure
vent would blow.
These systems are not intended for steam generation - they are intended to
hold hot water at only 2 to 4 bar.
Most countries have legislation concerning pressure vessels, steam boilers
included. Even the model steam enthusiasts have to have their boilers
tested and certified safe for use.
Steam does not scale down well. A 6hp steam engine would be luck to
achieve 5% thermal efficiency and consume vast quantities of wood or other
fuel. Mike Brown Solutions will sell you a 3 hp steam engine and warn you
that you need a forest of trees to keep it running.
Steam is not a viable route for home power generation, stick to the humble
IC engine with gasification or methane digester.
If steam were simple, it would be cheap and everyone would be doing it.
Keep safe - avoid live steam.
Ken
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