Ivor and Olive Lewis on thu 21 sep 06
Dear Wayne,
Thanks for the benefit of your experience. I appreciate such concrete =
evidence.
In effect it would seem that the volumetric quantity of gas might be =
about equal to the volume of clay that you processed. Do you have a =
record of the ambient temperature for that day?
Best regards,
Ivor
Ivor Lewis.
Redhill,
South Australia.
W J Seidl on thu 21 sep 06
Dear Ivor:
Temperatures here during that time period averaged 87F (32C), so it =
should
be about that. The gas I got from that batch is roughly 1/3 the volume =
of
the pugging chamber, as one does not completely fill the pugger when in =
use.
I'm sure that most of that was regular old atmosphere trapped when the =
lid
was closed.
A simple test not requiring the use of a pug mill would be to put a =
known
quantity (pounds, kilos, weight or volume) of clay in a plastic garbage =
bag
(or equivalent) leaving room for movement and handling. Then hand pug =
the
clay with a stick or by foot and see if the gas within the bag afterward =
is
appreciably different than that of regular "air", though it would still
require the use of sophisticated air testing equipment to be sure.
Best,
Wayne Seidl
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Ivor and =
Olive
Lewis
Sent: Thursday, September 21, 2006 2:07 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: De-airing Pugmill Effluent Gas
Dear Wayne,
Thanks for the benefit of your experience. I appreciate such concrete
evidence.
In effect it would seem that the volumetric quantity of gas might be =
about
equal to the volume of clay that you processed. Do you have a record of =
the
ambient temperature for that day?
Best regards,
Ivor
Ivor Lewis.
Redhill,
South Australia.
Ivor and Olive Lewis on fri 22 sep 06
Dear Bonnie Staffel,=20
Our other ozzie friend from the Great Dividing Range has done that and =
gets good results with that test. But Marsh Gas is not produced in well =
aerated conditions, only when there is a deficiency of Oxygen.
Good thinking there.
Best regards,
Ivor
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