[Stoves] WorldStove replies to BioFuelWatyche's latestimprecisereporting of facts.

[Steve Taylor]

On 27 July 2011 09:54, George Riegg Gambia <icecool at qanet.gm> wrote:

> **
> Hi Steve / Crispin / Roger of Fireside
>
> I'm another of these guys who just hasn't got the tech. language or
> knowledge so I rely on our experts here and I just try to understand and
> comprehend.
>
> Looking at Crispin's and Steve's posts about 4 hours apart addressing just
> about the same topic explaining to Roger the ins and outs of ...... call it
> energy efficiency / need/ release...... I can understand that Roger is
> getting confused watching this group.
>
> I see 2 explanations using different methods and by having to make
> assumptions I accept that the results may vary to a certain degree. But
> Steve, to say that 5 lb "just about" are 2 kg (it's actually "about" 2.27
> which is a 10 % difference which is when multiplied up ALOT).
>
> I really haven't got the time to do alot copy and pasting here but you both
> use different base figures to calculate the same thing and OF COURSE end up
> with totally different results:
> Crispin 2.68 hrs at 100 % efficiency
> Steve 1.6 hrs (efficiency not declared)
>


George,
I am a professional engineer: My calcs here started as a "wet finger in the
air" , or as we call it in the UK, a "fag packet" calculation.....  ;-)

That I am less than 100% off Crispin's nuanced calcs, based on actual field
measurements I would call bloody nearly miraculous....

The maths scales linearly, for the weight, so my 5kW burn would actually
take 1.76 hours - I hate using two places of decimals for this exercise....

Steve
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