[Gasification] wood energy content

[Greg Manning]

Greetings Mario and list,

First off.
NO QUESION IS STUPID... these forums are here for that exact reason.. the
sharing of information.

As far as your answer... I'd Say your Off just a wee bit, if you are ONLY
looking at energy balance.

In Energy Balance factors only, 16Kg of wood at 15% Mc would have 81 Kw/th
or so...

However, your numbers, would be very close, if you factor other losses to
things like "real world" though.. :)

Greg Manning

Brandon, Manitoba, Canada



-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org]On Behalf Of Mariodg77
Sent: Friday, May 12, 2006 10:12 AM
To: gasification at listserv.repp.org
Subject: [Gasification] wood energy content



Dear forum,

I thank to all who answered me ,i've got another questions for you, maybe
stupid one but i must bu sure of it....

reading  the engine tables on fluidyne  archive, i can see that :

Based on wood moisture content of 15% wet basis
Woods gross heat energy content: 15,490kJ per kg
or 3.165kW heat from burning gas direct
or 0.837kW of shaft power i.e engine
or 0.754kW of electric power generated
1 litre of diesel has a heat energy content of 9.630 kW heat (or 32,895 BTU)



so what's the inlet flowsheet, for example , of a 70kWth gasifier working
with woodchips?

in theory if 1kg of wood contains 15500 kJ = 14700 BTU
70 kWth are more or less 239050 BTU or 255211 kJ or 16 kg of wood

is it right?

thanks

mario
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