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| Stoves Archive for October 2002 |
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| 236 messages, last added Tue Nov 26 17:31:57 2002 |
[Date Index][Thread Index]
Re: Biodiesel
<<<<SNIP>>>
>
> I have often wondered at how we by fuel by volume whether liquid or
> wood, coal was always sold by weight. Wood fuel is interesting in that
> the moisture content varies the weight but not the volume (until you
> get below the fiber saturation point), yet is has a marked effect on
> calorific value. So in the case of a stack of wood the weight is no
> good indication without knowledge of the moisture content.
>
> AJH
I believe the reason that various fuels are sold by different methods of
measurement, is simply for the convenience of the transaction. Liquid fuels
are sold by volume, as that is the easiest method to measure a liquid fuel.
Coal is simply easier to weigh, than to figure out what cubic volume you are
purchasing. Coal is purchased from a commercial enterprise that would be
more likely have a facility to weigh the amounts. Efficiency is a guideline.
No haggling over differences in meauring the volume for each customer.
Firewood is more likely to be bought by volume, at a personal consumer
level, than by weight. Commercial entities that buy firewood are more
likely, at least locally, to buy by a weight converted to volume ie. a cord
of Oak firewood is assumed to weigh 5000 pounds, therefore 50,000 pounds of
wood would be paid as 10 cords. Any difference in weight because of high
moisture content would be reflected in the price paid. 'Green' wood brings a
lesser price than 'seasoned' wood.
Some local Entrepreneurs are selling firewood by a set price for a 'pickup
load'. Seasoned wood is $60/pickup load. 'Green' wood is $40/pickup load.
Buyers use their own pickup, and are free to overload to whatever extent
their greed overcomes their financial common sense as applied to vehicle
repairs.
Motie
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