Wet and dry bulb comfort measurements

[MEXICOWANDERER]

https://en.m.wikipedia.org/wiki/Wet-bulb_temperature


Wet bulb, dry bulb comfort measurement.

Wrap the wet bulb thermometer with cheesecloth.

Blow a fan across the bulb.

This is the lowest temperature that evaporative cooling can achieve at that point in time. A very useful tool.

https://www.ebay.com/itm/Economy-Sling-Psychrometer-Kit-Containing-1-Dry-Bulb-and-1-Wet-Bulb-Thermom...

[C_Schomer]

I used a Bacarach sling psychrometer my whole career. The red reading thermometers can't take the heat in a service truck so I switched to Mercury and it always had dead accurate calibrations. The newer AC charging charts go by inside wet bulb for one of the parameters so I checked indoor WB every job.
I went from Denver to Phx. In 03 and I thought I would literally die or have to change careers before I learned how to regulate water, electrolytes and food. I ached and hurt from head to toe when I got home at night! Still, when all the water I could hold and the right electrolytes didn't work, usually about 2 PM, I had to go indoors.
The company finally gave us heart rate/core temp monitors but learning to read my own body was the best. Craig

[red31]

MEXICOWANDERER wrote:

I read 88, 92, 95, 76, 89...

Am I supposed to see words?

I only see multiples of 10 but read 32C and 18C 😛

[MEXICOWANDERER]

red31 wrote:

MEXICOWANDERER wrote:


https://www.ebay.com/itm/Economy-Sling-Psychrometer-Kit-Containing-1-Dry-Bulb-and-1-Wet-Bulb-Thermom...

That's not digital :B :W

I read 88, 92, 95, 76, 89...

Am I supposed to see words?

[profdant139]

Mex, if it's any consolation, even California has felt like Acapulco for much of August -- high temps, high humidities, and now add in a lot of smoke. I can tell you it's miserable, even without a wet bulb.

[red31]

this one hung at buddies hunting cabin, it relied on mother nature's breeze.



dad used this one, he was left handed!

[mbopp]

I used to work in an airflow lab. We had a battery powered wet-dry bulb psychrometer to measure humidity.

[red31]

MEXICOWANDERER wrote:


https://www.ebay.com/itm/Economy-Sling-Psychrometer-Kit-Containing-1-Dry-Bulb-and-1-Wet-Bulb-Thermom...

That's not digital :B :W

[MEXICOWANDERER]

I found through the school of hard knocks that in dangerously high temperatures that a pure ice slurpee made in a blender can ward off really awful effects. I Make sure I have enough salt in my system then grind ice and stick it in a thermos. I have lowered my body temperature 2+ degrees by eating the ice. I start off slowly but consume a pint or so of shlilusy ice. Too much, too soon may be hard on the body. Alcohol, caffeine or sugar seems to kick my butt. I don't drink but watching other people, beer and booze are both bad for health in broiling temperatures.

[MEXICOWANDERER]

Echo

[Chum_lee]

If you are properly hydrated, in low humidity, you can think of yourself as as cool, wet bulb guy. In high humidity, . . . your're just another sweaty (maybe stinky) guy.

Chum lee

[MEXICOWANDERER]

No batteries no transistors no drift no plus minus percentage errors. And twelve dollars.

[agesilaus]

wa8yxm wrote:
One way. in fact the most accurate way. to measure humidity requires a dual bulb (one wet one dry) thermometer a piece of string and a book.

You start by slinging the thing around for a bit.
Read both thermometers and note the temps
Look the dry temp up in the book then the wet and where the two cross

HUMIDITY.

Just get a sling psychrometer, (Amazon} I used them at work to determine the wet bulb temp. That's what the 'Feels Like' temp comes from. It's done electronically now, my indoor-outdoor thermometer does it with no slinging. This old tech....heh.

[wa8yxm]

One way. in fact the most accurate way. to measure humidity requires a dual bulb (one wet one dry) thermometer a piece of string and a book.

You start by slinging the thing around for a bit.
Read both thermometers and note the temps
Look the dry temp up in the book then the wet and where the two cross

HUMIDITY.

[Lwiddis]

Only way I survived summers at Ft. Irwin was to keep my uniform wet. Didn’t know the science...did know the relief.