Friam

evaporative cooling

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thompnickson2

evaporative cooling

A technical question for you high-desert scientists:

How far can one take evaporative cooling? With dewpoint temperatures in the teens, how far down can the output of a swamp cooler be. This relates to a question I asked you all in the dead of winter: given a dewpoint temperature way below freezing, what is the warmest shade temperature at which an icicle can form.

This is the kind of question that a Massachusetts resident would never think of, let alone ponder on.

Nicholas Thompson

Emeritus Professor of Ethology and Psychology

Clark University

[hidden email]

https://wordpress.clarku.edu/nthompson/

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Gary Schiltz-4

Re: evaporative cooling

No scientific results here, but some anecdotal experience from about 40 years ago. I spent two summers in west Texas (near Wink, birthplace of Roy Orbison). I was a field tech on a project studying Desert Side-blotched Lizards. Temperatures were often over 110 F in the early afternoon, with humidity dropping to single digits. We all lived in small sheet metal-sided cabins with metal roofs (it was an abandoned Air National Guard base). With no cooling, the internal temperature would have been totally unbearable, but they had evaporative coolers. The air from them was quite chilly, at times I would have to turn mine off or put on a sweater. Of course, at night, the desert cooled substantially.

On Tue, May 19, 2020 at 2:59 PM <[hidden email]> wrote:

A technical question for you high-desert scientists:

How far can one take evaporative cooling? With dewpoint temperatures in the teens, how far down can the output of a swamp cooler be. This relates to a question I asked you all in the dead of winter: given a dewpoint temperature way below freezing, what is the warmest shade temperature at which an icicle can form.

This is the kind of question that a Massachusetts resident would never think of, let alone ponder on.
N

Nicholas Thompson
Emeritus Professor of Ethology and Psychology
Clark University
[hidden email]
https://wordpress.clarku.edu/nthompson/

-- --- .-. . .-.. --- -.-. -.- ... -..-. .- .-. . -..-. - .... . -..-. . ... ... . -. - .. .- .-.. -..-. .-- --- .-. -.- . .-. ...
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
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Sarbajit Roy (testing)

Re: evaporative cooling

You need a psychometric chart for this. Here's one off the internet
https://www.researchgate.net/figure/Evaporative-Cooler-Process-on-Psychometric-Chart-where-e-Efficiency-in-percent-T-DBE_fig5_271288974

On Wed, May 20, 2020 at 2:10 AM Gary Schiltz <[hidden email]> wrote:

No scientific results here, but some anecdotal experience from about 40 years ago. I spent two summers in west Texas (near Wink, birthplace of Roy Orbison). I was a field tech on a project studying Desert Side-blotched Lizards. Temperatures were often over 110 F in the early afternoon, with humidity dropping to single digits. We all lived in small sheet metal-sided cabins with metal roofs (it was an abandoned Air National Guard base). With no cooling, the internal temperature would have been totally unbearable, but they had evaporative coolers. The air from them was quite chilly, at times I would have to turn mine off or put on a sweater. Of course, at night, the desert cooled substantially.

On Tue, May 19, 2020 at 2:59 PM <[hidden email]> wrote:
A technical question for you high-desert scientists:

How far can one take evaporative cooling? With dewpoint temperatures in the teens, how far down can the output of a swamp cooler be. This relates to a question I asked you all in the dead of winter: given a dewpoint temperature way below freezing, what is the warmest shade temperature at which an icicle can form.

This is the kind of question that a Massachusetts resident would never think of, let alone ponder on.
N

Nicholas Thompson
Emeritus Professor of Ethology and Psychology
Clark University
[hidden email]
https://wordpress.clarku.edu/nthompson/

-- --- .-. . .-.. --- -.-. -.- ... -..-. .- .-. . -..-. - .... . -..-. . ... ... . -. - .. .- .-.. -..-. .-- --- .-. -.- . .-. ...
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
FRIAM-COMIC http://friam-comic.blogspot.com/

-- --- .-. . .-.. --- -.-. -.- ... -..-. .- .-. . -..-. - .... . -..-. . ... ... . -. - .. .- .-.. -..-. .-- --- .-. -.- . .-. ...
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
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Edward Angel

Re: evaporative cooling

In reply to this post by thompnickson2

https://www.fieldstudyoftheworld.com/persian-ice-house-how-make-ice-desert/

_______________________

Ed Angel

Founding Director, Art, Research, Technology and Science Laboratory (ARTS Lab)
Professor Emeritus of Computer Science, University of New Mexico

1017 Sierra Pinon

Santa Fe, NM 87501
505-984-0136 (home) [hidden email]

505-453-4944 (cell) http://www.cs.unm.edu/~angel

On May 19, 2020, at 1:59 PM, [hidden email] wrote:

A technical question for you high-desert scientists:

How far can one take evaporative cooling? With dewpoint temperatures in the teens, how far down can the output of a swamp cooler be. This relates to a question I asked you all in the dead of winter: given a dewpoint temperature way below freezing, what is the warmest shade temperature at which an icicle can form.

This is the kind of question that a Massachusetts resident would never think of, let alone ponder on.
N

Nicholas Thompson
Emeritus Professor of Ethology and Psychology
Clark University
[hidden email]
https://wordpress.clarku.edu/nthompson/

-- --- .-. . .-.. --- -.-. -.- ... -..-. .- .-. . -..-. - .... . -..-. . ... ... . -. - .. .- .-.. -..-. .-- --- .-. -.- . .-. ...
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
FRIAM-COMIC http://friam-comic.blogspot.com/

thompnickson2

Re: evaporative cooling

Nifty, Ed. Nifty.

Nicholas Thompson

Emeritus Professor of Ethology and Psychology

Clark University

[hidden email]

https://wordpress.clarku.edu/nthompson/

From: Friam <[hidden email]> On Behalf Of Edward Angel
Sent: Tuesday, May 19, 2020 3:05 PM
To: The Friday Morning Applied Complexity Coffee Group <[hidden email]>
Subject: Re: [FRIAM] evaporative cooling

https://www.fieldstudyoftheworld.com/persian-ice-house-how-make-ice-desert/

_______________________

Ed Angel

Founding Director, Art, Research, Technology and Science Laboratory (ARTS Lab)
Professor Emeritus of Computer Science, University of New Mexico

1017 Sierra Pinon

Santa Fe, NM 87501
505-984-0136 (home) [hidden email]

505-453-4944 (cell) http://www.cs.unm.edu/~angel

On May 19, 2020, at 1:59 PM, [hidden email] wrote:

A technical question for you high-desert scientists:

How far can one take evaporative cooling? With dewpoint temperatures in the teens, how far down can the output of a swamp cooler be. This relates to a question I asked you all in the dead of winter: given a dewpoint temperature way below freezing, what is the warmest shade temperature at which an icicle can form.

This is the kind of question that a Massachusetts resident would never think of, let alone ponder on.
N

Nicholas Thompson
Emeritus Professor of Ethology and Psychology
Clark University
[hidden email]
https://wordpress.clarku.edu/nthompson/

-- --- .-. . .-.. --- -.-. -.- ... -..-. .- .-. . -..-. - .... . -..-. . ... ... . -. - .. .- .-.. -..-. .-- --- .-. -.- . .-. ...
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
FRIAM-COMIC http://friam-comic.blogspot.com/