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Date: 08 Nov 2006 13:33:11
From: Ray Porter
Subject: cooling an observatory in summer heat
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Hi everyone,
After many years of planning and hoping, my roll-off roof observatory is
nearly finished. I've heard that it's a good idea to mount a small, solar
powered fan in the eave vents to help regulate the interior temperature
during the summer. Does anyone have a link or a reference for a source of
suitable fans?
Thanks,
=================================
Ray Porter
Information Systems
Applications Development Manager
Division of University Advancement
University of North Carolina at Chapel Hill
Phone: (919) 698-8770
Fax: (91) 843-3314
ray_porter@unc.edu
http://www.unc.edu/~dragon
Meddle not in the affairs of dragons for thou
art crunchy and taste good with ketchup
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Date: 08 Nov 2006 23:31:01
From: JM
Subject: Re: cooling an observatory in summer heat
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Ray,
How about using a solar chimney? A long piece of stovepipe painted black,
mounted vertically and ducted to the observatory? The pipe must be vertical
and exposed to the sun. Heated air will rise and draw cooled air into the
bottom. No moving parts!
Possibly mounted on a pivot so it can be lowered out of the way of the
telescope?
John
"Ray Porter" <ray_porter@unc.edu > wrote in message
news:455222e7$1_2@news.unc.edu...
> Hi everyone,
> After many years of planning and hoping, my roll-off roof observatory is
> nearly finished. I've heard that it's a good idea to mount a small, solar
> powered fan in the eave vents to help regulate the interior temperature
> during the summer. Does anyone have a link or a reference for a source of
> suitable fans?
>
> Thanks,
> =================================
> Ray Porter
> Information Systems
> Applications Development Manager
> Division of University Advancement
> University of North Carolina at Chapel Hill
> Phone: (919) 698-8770
> Fax: (91) 843-3314
>
> ray_porter@unc.edu
> http://www.unc.edu/~dragon
>
> Meddle not in the affairs of dragons for thou
> art crunchy and taste good with ketchup
>
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Date:
From: Martin Brown
Subject: Re: cooling an observatory in summer heat
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Date: 09 Nov 2006 18:08:56
From: Bob G.
Subject: Re: cooling an observatory in summer heat
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On Wed, 8 Nov 2006 13:33:11 -0500, "Ray Porter" <ray_porter@unc.edu >
wrote:
>Hi everyone,
>After many years of planning and hoping, my roll-off roof observatory is
>nearly finished. I've heard that it's a good idea to mount a small, solar
>powered fan in the eave vents to help regulate the interior temperature
>during the summer. Does anyone have a link or a reference for a source of
>suitable fans?
>
>Thanks,
>=================================
>Ray Porter
No direct LINK...but check out the Observatory Forum on Cloudy
Nights..
www.cloudynights.com
Ask your question and I bet you get you get plenty of suggestions...
My Dome was "dropped" on top of my Observatory In Mid September and I
know I will need to cool down the inside next summer...
Your Roll off should however cool down pretty fast if you pop the top
a few hours before you want to use it...how long does it take your
scope to cool down.. ?
Clear Sky's ...
BTW... My observing time has at least trippled since my Dome went up
almost 2 months ago.. it is NOT hard to get used to 10 second set
ups.. and .5 second shut downs, no more lugging out the gear... !
Bob G.
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