RE: GAS-L: RE:1 kw St.Engine drawings sought.

[Ken Boak <Ken.Boak@dataflex.co.uk>]

Graeme and list,

Small Stirlings tend to come in at 10 to 15% efficient - that's wood in to
watts out.

This becomes perfectly viable when you require hot water and power and there
is no other simple solution. 

This may seem low - but show me a similar sized IC engine, which offers low
noise, low emissions, long life - with next to no maintenance, no need for
constant supervision like steam plant, and will run on any fuel directly
from biodiesel to buffalo dung.

You need to look at the whole picture, from having a ready supply of waste,
being able to use the waste heat, and having a requirement for electricity.

The Stirling has niche applications, and should not be dismissed on cost
alone.

Small Stirling combined heat a power systems have just come onto the market,
using natural gas. The unit produces no more noise that a domestic
refrigerator, and produces 16% electricity.  The heat output is well matched
to the typical European domestic heating load.

As an aside,

100kW Stirlings are used in banks of 4, to recharge the batteries of Swedish
submarines, low acoustic trail, you can burn diesel in a pressurised burner
such that the exhaust can be vented through a port hole at the same pressure
to match the depth of submersion - low bubble trail.



Ken

 

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