Temperature under a hat

[Frunobulax]

That's fine for precision, but few of us know the "thickness" or density of our felts (or have the equipment to measure it accurately) and having at least one of the "standards" being a hat commonly known and owned across most of us hat-o-philes would give us a common point of reference. In addition to a technical standard, I'm also thinking of a "practical" standard most of us can relate to.

But that's how you do it. If you are going to perform testing of this type you need good measuring equipment, test gear, and a decent sampling of materials. Otherwise, the results are useless.

Also note I don't care about individual hats or models. I'm convinced the most useful data will come by determining a heat transfer rate for felt that is dependent on thickness and perhaps color. Once you gave that, you have the answer to the question of which will be cooler. Individual data points for your particular hat would be interesting, but largely anecdotal.

 

[AbbaDatDeHat]

My favorite engineering story:

A guy who lived in my dorm (we'll call him Tito, because that was his name) got a co-op job at GM Lordstown. During his stay, his manager came to him and asked him to design some sort of rack, I forget what, but a lead-bearing structure of some sort.

So Tito sits down at his desk, takes the estimated loads, and calculates the exact diameter of what sort of pipe would be needed to accomplish the job, utilizing all the engineering skills he has to derives such things.

He proudly takes his work to his boss, saying, that they need steel pipes of x diameter, etc, etc. His boss looks at his work and tells Tito, "That wasn't really necessary. Looks like the 3/4" pipe we have in stock will do."

Good story Jim.
Was his manager/boss a Geologist??
B

 

[Frunobulax]

Good story Jim.
Was his manager/boss a Geologist??
B

Did I tell you I always partied with the geology majors? On Saturday nights, all the engineering geeks wanted to go to the computer lab and play games. The geologists wanted to drink beer.

We used to break into the science building at night and drink all the beer in the Women in Engineering Society's fridge. They drank Old Milwaukee most of the time.

 

[AbbaDatDeHat]

Did I tell you I always partied with the geology majors? On Saturday nights, all the engineering geeks wanted to go to the computer lab and play games. The geologists wanted to drink beer.

We used to break into the science building at night and drink all the beer in the Women in Engineering Society's fridge. They drank Old Milwaukee most of the time.

Ha ha
I knew you were an ok guy. Lol
Excellent inter-departmental skills i must say. I missed all that fun stuff being the old guy but i’d a let you hang in a diff time.
Be well and safe in Funkytown.
B

 

[Short Balding Guy]

My favorite engineering story:

A guy who lived in my dorm (we'll call him Tito, because that was his name) got a co-op job at GM Lordstown. During his stay, his manager came to him and asked him to design some sort of rack, I forget what, but a lead-bearing structure of some sort.

So Tito sits down at his desk, takes the estimated loads, and calculates the exact diameter of what sort of pipe would be needed to accomplish the job, utilizing all the engineering skills he has to derives such things.

He proudly takes his work to his boss, saying, that they need steel pipes of x diameter, etc, etc. His boss looks at his work and tells Tito, "That wasn't really necessary. Looks like the 3/4" pipe we have in stock will do."

Good, but real story experienced all the time by engineers. I have 4 brothers and 3 of us studied Engineering. When we get together for home projects we can really make it complicated, detailed and support massive weight. Never fail in our lifetimes.

For me it was frustrating to be detailed, work hard at the variables, calculations and then multiply it by an approved "Safety Factor (some multiplier). Jeepers an engineering SWAG would have hit the target. I recall on some roof structure supports(sports stadium) it took a whole week of calculations and it got a couple of sentences and a safety factor in the huge dollar proposal I was involved in.

As to beer, being a D1 scholar-shipped student athlete no drinking went on in our lodging.

Anywhoo, I am curious. Let see what you folks come up with.

Be safe, be strong and see you on the streets soon, Eric -

 

[Rmccamey]

I'm not suggesting one over the other. I'm just saying it would be helpful to have both because few of us here, even few individuals across the land, have the requisite test gear, measuring equipment, or felt samples to do it themselves.

But that's how you do it. If you are going to perform testing of this type you need good measuring equipment, test gear, and a decent sampling of materials. Otherwise, the results are useless.

Also note I don't care about individual hats or models. I'm convinced the most useful data will come by determining a heat transfer rate for felt that is dependent on thickness and perhaps color. Once you gave that, you have the answer to the question of which will be cooler. Individual data points for your particular hat would be interesting, but largely anecdotal.

 

[scottyrocks]

But that's how you do it. If you are going to perform testing of this type you need good measuring equipment, test gear, and a decent sampling of materials. Otherwise, the results are useless.

Also note I don't care about individual hats or models. I'm convinced the most useful data will come by determining a heat transfer rate for felt that is dependent on thickness and perhaps color. Once you gave that, you have the answer to the question of which will be cooler. Individual data points for your particular hat would be interesting, but largely anecdotal.

And then after all is said and done, everyone's personal tolerances are different, and what may measure X on the RHHTS (Rmcarney Hat Heat Transfer Scale) may enable Person 1 to wear said hat comfortably in Y degrees with Z% humidity while Person 2, under the same hat, will be shvitzing like an open sprinkler head.

 

[1967Cougar390]

Ok, I seem to be the only one taking any kind of measurements. So at least for me, I have some data to go by. I’ve tested (un-scientifically) four Akubras. All Imperial grade felt. The same time of day, same outdoor temperature, my same bald head , and different color felts.

Sydney, Regency Fawn: 83.8 degrees Fahrenheit (exactly the same as my Fed IV, Tawny).

Stylemaster, Carbon Grey: 81.6 degrees Fahrenheit. 0.5 degree difference between my Fed IV Moonstone.

My bald head: 87.2 degrees Fahrenheit

From my perspective I really don’t feel a temperature difference wearing any of the four Akubras even though there is a slight difference in the temperature readings.


Steven

 

[Just Daniel]

Any other Slow and Low BBQ Bretheren out there?

Confirmed 82 degrees F indoors, moderate breeze. Test one 1920s Stetson tight weave Montecristi and various Stetson felts from various decades, on my head, seated without movement for to be determined short set time period, and confirming a constant ambient temperature between measurements. Other than the Monte, all thin ribbon SBs.

Open crowns, working to ensure the thermometer touches neither my hair nor the hat surface. All 7 1/8 (except one fit for me by Ignacio) and same feel on the size. I have not measured crown heights, that is certainly a possible variable to consider.

No sun.

 

[Just Daniel]

Also drinking a Corona “Beer-us”

 

[Just Daniel]

Montecristi. The temp rose to 86 F after about five minutes and stabilized there through seven minutes. I therefore chose seven minutes as my base for time on the others.

 

[Just Daniel]

First up: 1930s 7X CB. In seven minutes it hit 86 F. To my observation the temperature rose with the same acceleration as the straw, although I regret not taking markers at each minute.

 

[Just Daniel]

Second: mid-fifties 7X CB, plastic liner protector. To my unscientific eye, exactly the same as his older brother: 86 F after seven minutes.

 

[Just Daniel]

Third: 3X Beaver, pre-oilskin (no liner), approximately ‘46.

88 F in seven minutes. To my eye the thermometer rose fast like I had the ‘Rona fever. A noticeable difference.

 

[Just Daniel]

Late 50s, early 60s Stetson 100, plastic liner protector. 88 F in seven minutes.

 

[Just Daniel]

Return to the control Montecristi. Same results.

At this point the girlfriend called me away and when I returned the setting sun fell in through the window and the ambient temperature rose to 84 degrees F. Given my results only differed by two degrees, I closed down my little unscientific experiment. Maybe tomorrow I’ll try a relative comparison between two 100s from different decades.

 

[Just Daniel]

I repeated yesterday’s experiment in part: hats on for seven minutes, seated indoors, no sun, five minutes break between hats. Ambient temp 82 F.

Montecristi: 85 F
50s/60s Stetson 100 w/ plastic liner: 86 F
~’46 Stetson 3X, no plastic liner: 87 F
30s Stetson 7X CB: 86 F

Repeat 50s/60s Stetson 100 w/ plastic liner: 86 F
Repeat 30s Stetson 7X CB: 86 F
Repeat Montecristi: 86 F
Repeat ~’46 Stetson 3X, no plastic liner: 87 F

I changed up the order because my last experiment gave the same temp for the 3X as the Stetson 100 and I wondered if wearing the warmer 3X had thrown off the reading for the next in line 100. Given these results that could be the case.

 

[Just Daniel]

From my view on taking actual measurements, the next step is purchasing and using one of the new wireless oven thermometers and then taking sufficiently comparable measurements in the wild. With enough precision I think we can judge differences in hat material temperatures under the influence of environmental factors such as head heat and the sun.

 

[1967Cougar390]

From my view on taking actual measurements, the next step is purchasing and using one of the new wireless oven thermometers and then taking sufficiently comparable measurements in the wild. With enough precision I think we can judge differences in hat material temperatures under the influence of environmental factors such as head heat and the sun.

That’s kind of like what I did. Four different Akubra felt hats, two days, laser thermometer, and I wore each for 10 minutes. I’m not sure what else can really be done further. From my readings the temperature difference is so slight that you would have to always walk around with a thermometer under your hat to know which is actually warmer. Maybe I’m missing something, but I can’t see what more can change.

Steven

 

[AbbaDatDeHat]

Somehow i’m thinkin bout this song but hey, what the heck.
B