My question is aimed at using a solar kiln to dry chip for use in a
biochar system or gasifier/combustion bioenergy system, Doug. This would
use material from waste woody biomass streams in regional Australia.
Likely to be a mix of eucalypt, conifers, acacias and exotics. I don't
have a feel for the size of electric drive required for a tumbler
handling perhaps several cubic metres hence my question. And I suspect a
blower would also be necessary but again I don't have a feel for what
size of fan would be suitable for this scale. Hence my query.
If you're interested in drying timber in a solar kiln there's a
reasonable amount of literature I can point you at but that's perhaps a
bit off-topic for discussion on this list.
Cheers
David
On 3/02/2014 6:00 AM, [email protected] wrote:
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Today's Topics:
1. Re: Size of blower and tumbler required to dry chip in a
solar kiln (Doug)
----------------------------------------------------------------------
Message: 1
Date: Sun, 2 Feb 2014 17:16:18 +1300
From: Doug<[email protected]>
To: Discussion of biomass pyrolysis and gasification
<[email protected]>
Cc: David Coote<[email protected]>
Subject: Re: [Gasification] Size of blower and tumbler required to dry
chip in a solar kiln
Message-ID:<[email protected]>
Content-Type: text/plain; charset=US-ASCII
Hi
David,
Can you clarify a couple of points please?
We're looking at several days around 40C in Melbourne this week after a
record-breaking period two weeks ago with 4 consecutive days over 41C.
Solar kilns can get very hot with this much insolation although this
can, of course, be managed with airflow. Managing timber drying in a
solar kiln requires some care to reduce checking etc but drying chip
would be less sensitive.
Are you operating solar kilns in Melbourne or out in the Bush?
When you say checking, are these splits in the timber, also known as shakes?
I'm guessing you are drying Eucalyptus timber?
Are you using solar power at the kilns location?
Once I get my head around the the kiln application, I might be able to offer
more comment.
Doug Williams,
Fluidyne Gasification.
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