Next message: Janelle Lavender: "lv-ab: plastic clears"
Due to the efficiency of Aerogel, I think you could get away with
'normal' losses.
I think the best and easiest upgrade would be a single sheet of
Aerogel on the bottom of your top load freezer. No need for 20cm (4
inches) of foam, just use 2mm (1/8th) of Aerogel
On 8/1/06, Norm of Bandersnatch <> wrote:
>
> one problem with this i see is heat bridges through the supports between
> the inner and outer cases of the box needed because the aerogel cannot
> support the inner box.
>
> i have long thought of using an open cell foam with inner and outer boxes
> connected together airtight then sucking a vacuum on the space with the
> foam in it.
>
> some company has made plastic wrapped foam slabs with vaccum inside but i
> would not trust these to last. i would want to be able to refresh the
> vacuum from time to time as needed.
>
> Norm
> S/V Bandersnatch
> Lying 30 07.7N 081 39.6W
> Julington Creek Estuary FL
>
>
> > [Original Message]
> > From: Zed <>
> > To: Jeff Barfett <>
> > Cc: <>
> > Date: 7/31/2006 11:43:07 PM
> > Subject: Re: lv-ab: My ice cream is hard
> >
> > btw, when I get round to living aboard I will use Aerogel to insulate
> > all my cold spaces. Currently, it is almost impossible to buy in any
> > quantity, but in time it will find its way to market, and when it does
> > it will revolutionise refrigeration.
> >
> > Aerogel is a low-density solid-state material derived from gel in
> > which the liquid component of the gel has been replaced with gas. The
> > result is an extremely low density solid with several remarkable
> > properties, most notably its effectiveness as an insulator
> >
> > quote from here: http://en.wikipedia.org/wiki/Aerogel
> >
> >
> >
> >
> > On 8/1/06, Jeff Barfett <> wrote:
> > > Just some trivia....
> > >
> > > The Engels use some type of 'sling' type compressor that doesn't eat
> much
> > > power. I've had my 45 running 24x7x6years- no issues, the 45 uses about
> 2
> > > amps. I've thought many times about getting another, lose the case and
> > > install into the two deep ice boxes, but take a nap and forget the idea
> as I
> > > have a large investment into SeaFrost holding plates, which by the way
> make
> > > a lot of very large ice cubes!
> > >
> > > Just a side note that Engel did at one time offer up the 45 without the
> case
> > > as a 'built-in'. Don't see that it is offered any longer.
> > >
> > > Jeff on Southern Nights
> > >
> > > -----Original Message-----
> > > From:
> > > [mailto:] On Behalf Of
> > >
> > > Sent: Monday, July 31, 2006 11:18 AM
> > > To:
> > > Subject: lv-ab: My ice cream is hard
> > >
> > > > I bought an Engel portable freezer....at 1.5 amp draw it freezes ice
> > > > cream so hard >
> > >
> > > What is it about Engel's that allow them to do that for so little draw?
> > >
> > > I don't have space for an Engel, but I have two deep iceboxes I'd love
> > > to use Engel-type guts to cool.
> > >
> > >
> > >
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