Temp/Humidity control systems?
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
Can anyone point me to purveyors of the hardware to do something like
this? Because I'll have a limited time to build this, I'm looking for
something that uses more-or-less off the shelf gear, and not a whole lot
of custom engineering.
Thanks!
John
John, this is what I bought for the Orlando VA Medical Center when I was
setting up the research lab there.
Not cheap, though. 🤑
https://www.thermalproductsolutions.com/products/walk-in-temperature-humidity-test-rooms
On Wed, Oct 26, 2016 at 11:59 AM, John Ackermann N8UR jra@febo.com wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one outside
wall.
Can anyone point me to purveyors of the hardware to do something like
this? Because I'll have a limited time to build this, I'm looking for
something that uses more-or-less off the shelf gear, and not a whole lot of
custom engineering.
Thanks!
John
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ailman/listinfo/time-nuts
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Hi Bill --
That's a bit more than I had in mind, but very cool. :-) What I really
meant was a heat pump or other unit with good control loop that I could
use in a standard insulated space, just to keep "nominal" conditions
(ie, not wide-range testing).
Thanks,
John
On 10/26/2016 12:09 PM, William H. Fite wrote:
John, this is what I bought for the Orlando VA Medical Center when I was
setting up the research lab there.
Not cheap, though. 🤑
https://www.thermalproductsolutions.com/products/walk-in-temperature-humidity-test-rooms
On Wed, Oct 26, 2016 at 11:59 AM, John Ackermann N8UR jra@febo.com wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one outside
wall.
Can anyone point me to purveyors of the hardware to do something like
this? Because I'll have a limited time to build this, I'm looking for
something that uses more-or-less off the shelf gear, and not a whole lot of
custom engineering.
Thanks!
John
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.
Hoi John,
On Wed, 26 Oct 2016 11:59:14 -0400
John Ackermann N8UR jra@febo.com wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
What is the available budget for time and money?
Attila Kinali
--
It is upon moral qualities that a society is ultimately founded. All
the prosperity and technological sophistication in the world is of no
use without that foundation.
-- Miss Matheson, The Diamond Age, Neil Stephenson
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
Can anyone point me to purveyors of the hardware to do something like
this? Because I'll have a limited time to build this, I'm looking for
something that uses more-or-less off the shelf gear, and not a whole lot
of custom engineering.
Thanks!
John
John,
My most stable systems are in an upstairs, walk-in cupboard with two outside
walls. If the space is normally unoccupied, you may find it stable enough.
Can you put a temperature recorder in the space to check? I've used a
Raspberry Pi and "single wire" sensor for this.
http://www.satsignal.eu/raspberry-pi/monitoring.html#ambient
Cheers,
David
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv
On 10/26/2016 8:59 AM, John Ackermann N8UR wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
I'm lost with the basic concept here. Help me understand this.
If you go in and out of this room through a door, I don't
know how you prevent large fluctuations in temp/humidity.
You would probably need an air lock.
Is it a "room" where humans go, or just a "chamber" that is
locked up most of the time?
Rick N6RK
I have always wondered how large the market for those hydroponic/indoor
gardening stores really is, maybe they have something to fit the bill.
On Wed, Oct 26, 2016 at 11:59 AM, John Ackermann N8UR jra@febo.com wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one outside
wall.
Can anyone point me to purveyors of the hardware to do something like
this? Because I'll have a limited time to build this, I'm looking for
something that uses more-or-less off the shelf gear, and not a whole lot of
custom engineering.
Thanks!
John
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.
On 10/26/2016 1:00 PM, Richard (Rick) Karlquist wrote:
On 10/26/2016 8:59 AM, John Ackermann N8UR wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
I'm lost with the basic concept here. Help me understand this.
This room would be a large closet in my basement where two racks of
various OCXO, Rb, Cs live. There wouldn't be a lot of in-and-out
traffic. I'm not looking for 0.01 degree regulation -- <1 degree C and a
few percent humidity throughout the year seems a reasonable goal.
What I envisioned was a very small heat pump or other heating/air-con
unit coupled with some sort of proportional control. I just don't know
where to start looking for that, or what other issues to be thinking about.
(I know the way time-nuts think, and I recall the great ideas posted
here in the past about using an old refrigerator, or burying standards
in a deep hole -- but this would be wrapped into a bigger construction
project that I'm going to be managing from a distance, so I need to keep
it fairly straight-forward.)
Thanks, all!
John
I would start looking at the ductless heat pump systems that are becoming
popular now they don't take up much space, have pretty good capacity and
are efficient. I have no idea if they can be proportionally controlled or
what the temperature hysteresis on them are though, which might be an issue
in a room the size of a sheet of plywood.
On Wed, Oct 26, 2016 at 10:58 AM, John Ackermann N8UR jra@febo.com wrote:
On 10/26/2016 1:00 PM, Richard (Rick) Karlquist wrote:
On 10/26/2016 8:59 AM, John Ackermann N8UR wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
I'm lost with the basic concept here. Help me understand this.
This room would be a large closet in my basement where two racks of
various OCXO, Rb, Cs live. There wouldn't be a lot of in-and-out traffic.
I'm not looking for 0.01 degree regulation -- <1 degree C and a few percent
humidity throughout the year seems a reasonable goal.
What I envisioned was a very small heat pump or other heating/air-con unit
coupled with some sort of proportional control. I just don't know where to
start looking for that, or what other issues to be thinking about.
(I know the way time-nuts think, and I recall the great ideas posted here
in the past about using an old refrigerator, or burying standards in a deep
hole -- but this would be wrapped into a bigger construction project that
I'm going to be managing from a distance, so I need to keep it fairly
straight-forward.)
Thanks, all!
John
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
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--
--Eric
Eric Garner
Hi John,
Have you looked into walk-in humidors to see if there are any ideas there that you could use? Yeah, those use high levels of humidity, but there might be something in common with your needs.
Bob
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From: John Ackermann N8UR <jra@febo.com>
To: time-nuts@febo.com
Sent: Wednesday, October 26, 2016 12:58 PM
Subject: Re: [time-nuts] Temp/Humidity control systems?
On 10/26/2016 1:00 PM, Richard (Rick) Karlquist wrote:
On 10/26/2016 8:59 AM, John Ackermann N8UR wrote:
I may have the opportunity to build a small "clock room" and am
considering whether I could make it an environmentally controlled space.
 I'd like to learn about the options for doing this.
The space would probably be 6x8 feet or so, in a basement with one
outside wall.
I'm lost with the basic concept here. Help me understand this.
This room would be a large closet in my basement where two racks of
various OCXO, Rb, Cs live. There wouldn't be a lot of in-and-out
traffic. I'm not looking for 0.01 degree regulation -- <1 degree C and a
few percent humidity throughout the year seems a reasonable goal.
What I envisioned was a very small heat pump or other heating/air-con
unit coupled with some sort of proportional control. I just don't know
where to start looking for that, or what other issues to be thinking about.
(I know the way time-nuts think, and I recall the great ideas posted
here in the past about using an old refrigerator, or burying standards
in a deep hole -- but this would be wrapped into a bigger construction
project that I'm going to be managing from a distance, so I need to keep
it fairly straight-forward.)
Thanks, all!
John
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.