A bit of overkill indeed, but it did get me thinking if the principle may be
used more simply, e.g. with ducting instead of a complete annular space? Also,
it would be better if solar penetration were not required at the bottom of the
house, especially in winter when the angle of attack is low and the lower
floors are likely to be shaded by other buildings. This makes it unsuitable for
urban environments, which ought to encourage walking and discourage driving and
therefore need to minimize travel distances and maintain pedestrian
stimulation. I wonder if one can make it work using roof exposure only.
It also got me to thinking about another approach which dispenses with
convection but uses the greenhouse principle, and was not uncommon during the
Middle Ages. In another sense it has come to be known as "micro-architecture",
the term being used for anything from choirs and screens and reliquaries in
cathedrals in the form of miniature buildings, to the medieval cupboard-bed.
The idea in the present sense is that of a room within a room: a piece of
furniture that is well sunned through the windows during a winter day, which is
snug and enclosable, well insulated with rugs, and small enough to capitalize
on body heat, so that it remains warm while the annular space cools down
towards morning. In summer the rugs may be removed and the sides opened and the
cupboard-bedroom becomes part of the now-well-ventilated outer room.
It does rather appropriately add another meaning to the word "solar" in the
sense of a medieval upper chamber where one might expect to find a
cupboard-bed, even though the term is derived from the Old French for "floor",
"beam", "floor joist", and hence "upstairs".
-Dawie
----- Original Message ----
From: Fritz Friesinger <[EMAIL PROTECTED]>
To: biofuel@sustainablelists.org
Sent: Monday, 28 May, 2007 5:31:09 PM
Subject: Re: [Biofuel] Hybrid Solar House
Hi Mike & all,
i had a quick look at the Website of enertia,there are some very good aspects
in their aproach,but i think this is a kind of overkill!
We talking here of basically two Housshells wich are probably very costly and
not ment for everybodys means!
A significant aspect of full Woodhouses is not even mentionned in this website<
the ability of wood to even out differences of humidity and therefore act as a
catalizer.
Everone owns a Loghome would be able to tell that the Klimate in a Loghome is
much more natural and better than in conventional built studdwallstructure with
all kind of windbarriers and vaporbarriers!
The only disadventage,Loghomes are very labourintensive and therefore expensive.
I am working since a while on a constructionmethod with double Woodwalls
insulated with natural fiber insulation,not using vaporbarriers at all,so the
whole wall is considered as a full Logwall.
This method is costefficient, easy to assemble for homebuyers and
ecological,since the protection of the wood is mainly to constructiv means!
My Modelhome should be up by the end of this summer!
Fritz
----- Original Message -----
From: Mike Weaver
To: biofuel@sustainablelists.org
Sent: Monday, May 28, 2007 10:25 AM
Subject: [Biofuel] Hybrid Solar House
http://enertia.com/Science/HowItWorks/tabid/68/Default.aspx
Swiped from Digg
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