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Subject: permaculture
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- From: David <david@h4c.org>
- To: permaculture <permaculture@lists.ibiblio.org>
- Subject: Re: [permaculture] Ferrocement water tank pix
- Date: Wed, 19 Dec 2007 13:42:14 -0800
Charles,
Charles de Matas wrote:
David wrote:<<<<<<<<<<<<<<<<<<<<<<<<<<<<Sorry if my reply was not clear. We're both right, just talking about slightly different things.
Diameter is not a consideration with regard to hydrostatic pressure, only depth.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I know that. But I wasn't referring to hydrostatic pressure, I was refering to the hoop stress produced in the walls of the tank by the hydrostatic pressure. It's the product of the hydrostatic pressure and the tank diameter.
I hope nobody thinks that he or she can build a 30 m. dia tank with the same
wall thickness as a 3 m. dia tank.
Your point rendered mathematically? See http://www.oasisdesign.net/water/storage/extras/TankCalculator.xls
d.
--
David William House
503-678-5162 (home)
503-206-1001 (cell)
"The Complete Biogas Handbook" www.completebiogas.com
"Make no search for water. But find thirst,
And water from the very ground will burst."
(Rumi, a Persian mystic poet, quoted in Delight of Hearts, p. 77)
-
Re: [permaculture] Creek remediation
, (continued)
-
Re: [permaculture] Creek remediation,
Paul Cereghino, 12/18/2007
- Re: [permaculture] Creek remediation, David, 12/18/2007
-
Re: [permaculture] Ferrocement water tank pix,
Robyn Francis, 12/16/2007
-
Re: [permaculture] Ferrocement water tank pix,
Stella, 12/17/2007
- Re: [permaculture] Ferrocement water tank pix, Keith Johnson, 12/17/2007
-
Re: [permaculture] Ferrocement water tank pix,
Stella, 12/17/2007
-
[permaculture] Ferrocement water tank pix,
Charles de Matas, 12/17/2007
-
Re: [permaculture] Ferrocement water tank pix,
Keoni West, 12/17/2007
- [permaculture] Ferrocement water tank, and other, books at PcActivist, Keith Johnson, 12/17/2007
- Re: [permaculture] Ferrocement water tank pix, David, 12/17/2007
-
Re: [permaculture] Ferrocement water tank pix,
Keoni West, 12/17/2007
-
[permaculture] Ferrocement water tank pix,
Charles de Matas, 12/19/2007
- Re: [permaculture] Ferrocement water tank pix, David, 12/19/2007
-
Re: [permaculture] Creek remediation,
Paul Cereghino, 12/18/2007
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