[Steam-engine] Safety valves...now firing

[Jeff Smith]

I was taught how to bank a fire on coal and we never
had any problems with the grates either.

Jeff Smith
--- "Best, Dianne" <dbest at hydro.mb.ca> wrote:

> I will not dispute any "common knowledge" about
> dampering a coal fire
> being hard on grates but simply say I have been
> running my 1/2 scale
> Russell on Pennsylvania "Blacksmiths coal" for 7
> years. When working, it
> provides the whitest, hottest fire I have seen. The
> baby Russell is very
> air tight and if I close the damper, it will put the
> fire out in a very
> few minutes. It seems that being suffocated stops
> the combustion process
> VERY quickly - the white and yellow coals turn black
> within a minute or
> two and I think the only heat left is the heat in
> the unburned coal.
> There is no increase in pressure, which tells me
> there is little heat
> being transferred and the combustion process has
> stopped.
> 
> I am still on the original (cast iron) grates and
> they show no sign of
> abuse or deterioration (except rust). Haven't found
> a good "grate paint"
> yet for a coal-fired engine ;-)
> 
> Dianne
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> 



	
		
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