If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by Green Xenon [Radium] on July 13, 2008, 12:13 am
show/hide quoted text
> Thats fine, but please consider that if your theoritical cooling device
> worked without having humidity and condensations problems, then everybody
> would already have one. Think radient floor heat, and then what is gonna
> happen if you try reverse it and cool the floor.....its gonna get real wet.
So would this cooling device world best in low humidity -- so that
there is little condensation?
|
|
Posted by .p.jm on July 13, 2008, 12:25 am
On Sat, 12 Jul 2008 21:13:22 -0700 (PDT), "Green Xenon [Radium]"
show/hide quoted text
>> Thats fine, but please consider that if your theoritical cooling device
>> worked without having humidity and condensations problems, then everybody
>> would already have one. Think radient floor heat, and then what is gonna
>> happen if you try reverse it and cool the floor.....its gonna get real wet.
>So would this cooling device world best in low humidity -- so that
>there is little condensation?
The condensation is easily dealt with, every AC and refrigeration unit
unit in existence today does it already, it's not the major issue.
Cost of operation is.
FWIW - LN is typically used when a very fast flash freeze is required.
It's a simple system - one solenoid, feeds a metering device and an
evaporator ( coil, plate, whatever ). It's applicable when a very
fast high-capacity drop is required. Also in cryo work, of course,
but that's a different application entirely, where the subject is
likely to exposed directly to the LN.
--
Click here every day to feed an animal that needs you today !!!
www.theanimalrescuesite.com/
Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo online at www.pmilligan.net/palm/
Free 'People finder' program now at www.pmilligan.net/finder.htm
|
|
Posted by Green Xenon [Radium] on July 13, 2008, 12:31 am
On Jul 12, 9:25 pm, .p.jm@see_my_sig_for_address.com wrote:
show/hide quoted text
> On Sat, 12 Jul 2008 21:13:22 -0700 (PDT), "Green Xenon [Radium]"
> >> Thats fine, but please consider that if your theoritical cooling device
> >> worked without having humidity and condensations problems, then everybody
> >> would already have one. Think radient floor heat, and then what is gonna
> >> happen if you try reverse it and cool the floor.....its gonna get real wet.
> >So would this cooling device world best in low humidity -- so that
> >there is little condensation?
> The condensation is easily dealt with, every AC and refrigeration unit
> unit in existence today does it already, it's not the major issue.
> Cost of operation is.
Okay
show/hide quoted text
> FWIW - LN is typically used when a very fast flash freeze is required.
> It's a simple system - one solenoid, feeds a metering device and an
> evaporator ( coil, plate, whatever ). It's applicable when a very
> fast high-capacity drop is required. Also in cryo work, of course,
> but that's a different application entirely, where the subject is
> likely to exposed directly to the LN.
What does LN stand for?
|
|
Posted by .p.jm on July 13, 2008, 12:50 am
On Sat, 12 Jul 2008 21:31:09 -0700 (PDT), "Green Xenon [Radium]"
show/hide quoted text
>On Jul 12, 9:25 pm, .p.jm@see_my_sig_for_address.com wrote:
>> On Sat, 12 Jul 2008 21:13:22 -0700 (PDT), "Green Xenon [Radium]"
>> >> Thats fine, but please consider that if your theoritical cooling device
>> >> worked without having humidity and condensations problems, then everybody
>> >> would already have one. Think radient floor heat, and then what is gonna
>> >> happen if you try reverse it and cool the floor.....its gonna get real wet.
>> >So would this cooling device world best in low humidity -- so that
>> >there is little condensation?
>> The condensation is easily dealt with, every AC and refrigeration unit
>> unit in existence today does it already, it's not the major issue.
>> Cost of operation is.
>Okay
>> FWIW - LN is typically used when a very fast flash freeze is required.
>> It's a simple system - one solenoid, feeds a metering device and an
>> evaporator ( coil, plate, whatever ). It's applicable when a very
>> fast high-capacity drop is required. Also in cryo work, of course,
>> but that's a different application entirely, where the subject is
>> likely to exposed directly to the LN.
>What does LN stand for?
Pretty much anything, as long as you feed it right :-0
Liquid Nitrogen.
--
Click here every day to feed an animal that needs you today !!!
www.theanimalrescuesite.com/
Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo online at www.pmilligan.net/palm/
Free 'People finder' program now at www.pmilligan.net/finder.htm
|
|
Posted by Jon Elson on July 30, 2008, 1:42 am
Green Xenon [Radium] wrote:
show/hide quoted text
>
>
>
>>Thats fine, but please consider that if your theoritical cooling device
>>worked without having humidity and condensations problems, then everybody
>>would already have one. Think radient floor heat, and then what is gonna
>>happen if you try reverse it and cool the floor.....its gonna get real wet.
>
>
>
> So would this cooling device world best in low humidity -- so that
> there is little condensation?
Why, yes, but you also need low CO2, low oxygen and low nitrogen
in the room "air". What you are descibing, actually, is called
a "cryopump". It will end up condensing not only the water in
the air, but ALL the air! CO2 will freeze onto the coils, and
Oxygen and Nitrogen will condense and drip onto the floor,
thereby making puddles of liquid nitrogen and oxygen on the
floor. Since the nitrogen will just be cooled to saturation, it
will disappear immediately, leaving puddles of liquid Oxygen
behind. If you have anything but ceramic floors, such as
hardwood, vinyl tile, etc. you will likely have a violent
explosion rather quickly. Liquid oxygen is basically gaseous
oxygen compressed 1000 x, and therefore an extremely powerful
oxidizer.
Why cool something to 77 K to cool off a human body at 310 K.
Aside from the safety aspects of having something so dangerously
cold around, it can't be efficient. And, you won't get your
purely "radiant cooling", there will be HUGE sheets of insanely
cold air falling off the cold plates and collecting on the
floor. Within minutes, the room will have a thermal divide,
with totally frigid air from the floor to the bottom of the cold
plate.
Jon
|
Page 2 of 7 < 1 2 3 > last >>
| Similar Threads | Posted | | Convert a cooling thermostat to a cooling | September 29, 2006, 9:00 pm |
| upstiars cooling | August 1, 2006, 8:25 am |
| Window AC unit not cooling | August 1, 2006, 12:48 pm |
| Radiator use as a cooling coil | August 3, 2006, 11:24 pm |
| 13 SEER Splits not cooling!??! | August 8, 2006, 9:40 pm |
| datacenter cooling question.... | October 23, 2006, 3:45 pm |
| Wine Cooling Unit | December 28, 2006, 1:12 pm |
| HVAC Cooling Coil | July 13, 2007, 1:26 pm |
| Re: Adiabitic Cooling Maintenance | February 18, 2008, 1:15 pm |
| Re: Adiabitic Cooling Maintenance | February 19, 2008, 11:35 am |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
> worked without having humidity and condensations problems, then everybody
> would already have one. Think radient floor heat, and then what is gonna
> happen if you try reverse it and cool the floor.....its gonna get real wet.