[RE-wrenches] Fridge recommendations?

[conrad geyser]

Dave,

 

My favorite approach is a Gibson(or similar coil-in-shelves style
<http://www.google.com/imgres?hl=en&sa=X&tbo=d&biw=1241&bih=580&tbm=isch&tbn
id=UW2FlKpAEZ9uJM:&imgrefurl=http://forsale.oodle.com/view/gibson-commercial
-upright-freezer/3089328239-watertown-ny/&docid=zp1bWc9OglDZ2M&imgurl=http:/
/i.oodleimg.com/item/3089328239u_1x424x360f%253F1341103609&w=424&h=360&ei=Jy
XuUMnKFLKu0AHSgoHQBg&zoom=1&iact=hc&vpx=471&vpy=66&dur=803&hovh=208&hovw=244
&tx=119&ty=135&sig=118117522962116310335&page=2&tbnh=142&tbnw=168&start=25&n
dsp=29&ved=1t:429,r:29,s:0,i:179> ) up right freezer.  Section off the top
part where the coils do the most work with some loose foam insulation and
fill that portion of the freezer with 1 gallon water jugs.  Then run it off
the diversion load of the Outback.  I have one of these rigs going on the
construction trailer at one of our jobsites and it's been an icy cold fridge
without fail for the last eight months.  And obviously  it doesn't add any
load to the battery bank.  Once the diversion load comes on, the freezer
goes to work making ice in the jugs.  That ice can carry through five days
of cloudiness.  In colder weather it's necessary to leave it unplugged a
good portion of the time and you have to play around with the parameters on
the diversion load to get them to do what you really want.  The energy
stored in the phase change from water to ice is equivalent to the amount of
energy to change the water temperature from 173°F to 32°F, so it's really
huge.  And water is a lot cheaper than batteries!  I have a design for a
thermostat that turns it off automatically when the jugs are all the way
frozen but I haven't had to build it yet as I've just been unplugging.

 

Conrad

Cotuit Solar

 

From: Dave Palumbo [mailto:dave at independentpowerllc.com] 
Sent: Wednesday, January 09, 2013 4:26 PM
To: conradg at cape.com; 'RE-wrenches'
Subject: RE: [RE-wrenches] Fridge recommendations?

 

Off grid.

 

And good suggestions from Rob and Todd on the cold location.

 

Best,

 

Dave

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of conrad
geyser
Sent: Wednesday, January 09, 2013 3:52 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Fridge recommendations?

 

David,

 

Is this on or off grid?

 

Conrad

Cotuit Solar

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Rob Shappell
Sent: Wednesday, January 09, 2013 3:44 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Fridge recommendations?

 

If possible, locate the refer in a cold room to reduce winter consumption.
We had a Sunfrost RF 12, and a cold room for winter. Brrrrrrr.

 

Rob

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dave Palumbo
Sent: Wednesday, January 09, 2013 2:45 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Fridge recommendations?

 

I’m having difficulty finding a RF in the 16 to 20 cu ft range that uses
less than 350kWh/yr. All of the GE units listed by Energy Star as 300 to
311kWh/yr are no longer being manufactured according to my local appliance
dealers.

 

I see a Fridgidaire 18.2 cu ft that uses 335kWh/yr (reviews that I see on
this unit complained of loud clunky noises). 

 

Sun Frost units are too pricey for this application.

 

Any recommendations?

 

Thanks,

Dave

 

David Palumbo

Independent Power LLC 

462 Solar Way Drive

Hyde Park, VT 05655

www.independentpowerllc.com 

Vermont Solar Partner

25 Years Experience, (802) 888-7194 

 

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