So, how hot is boiling??

[Gargamel]

I seriously can't wrap my head around these numbers. These are actual values from my work. It's hot yes, but I just can't wrap my mind around some of these heat index. We get these numbers from standing about 15 feet from a 1000'f (530'c) walk in oven without doors. That is our normal workspace. We get frequent water breaks, but don't have or want heat gear, too heavy.

Here's some pics.


These two are taken from a few weeks ago.
http://i289.photobucket.com/albums/ll203/goestrider/1ec1c3ce.jpg

http://i289.photobucket.com/albums/ll203/goestrider/cb2d62b6.jpg

And here was today's.

http://i289.photobucket.com/albums/ll203/goestrider/fb1c0c11.jpg


I just dont understand this. What does boiling feel like? I stood in this all day and still got my skin. Now I understand when they say it's 92 but it feels like 98. That makes sense. But these numbers are just absurd. Are we that far off the chart??

If anybody cares to check these numbers, it's for Chardon, Ohio. Our work area never drops below 100'.

[Buddahaid]

What's BRB? Boiling point depends on what's boiling and under what pressure. You sir will boil in orbit around Earth.

[Gargamel]

What's BRB? Boiling point depends on what's boiling and under what pressure. You sir will boil in orbit around Earth.

Work In progress, be right back.

If I keep an editor open, unless it's an edit, it tends to crash fairly quickly. So I have to post then edit.

[kraznyi_oktjabr]

You work space temp is around 100 degrees celsius? :hmmm: Sounds like same as Finnish sauna.

Edit: Oops... you mean AFTER you consider humidity?

Edit2: Checked with online calculator and got same numbers as in pics. http://www.hpc.ncep.noaa.gov/html/heatindex.shtml
Edit3: With current relative humidity of 94% + poorly heated sauna of 80 degrees celsius would mean heat index of 659 degrees celsius (1217 fahrenheit) :o

[August]

AFAIK heat index doesn't calculate wind speed. If you have fans or blowers going it'll throw off those numbers by quite a bit i'll bet.

[Platapus]

The problem with heat index is that several assumptions are made in its calculation. The result is supposed to be an equivalent temperature to "how it feels".

How temperature feels differs widely from person to person. To me, 50-60 degrees is wonderful and 70 degrees is a hot room. Other people are shivering at 70 degrees.

So when the heat index states 110, it means that that will feel like 110 degrees to someone, perhaps not you.

Another problem is that perception of temperatures is not linear. As the temperature increases past say 110, it becomes simply frickin hot. Few people can really tell the difference between 110 and 120, it is just frickin hot.

Like August posted, heat index only factors in temperature and relative humidity. Pretty much everything else happening weather-wise will affect the heat index rating. The tricky part is that Relative humidity, itself, is dependent not only on air pressure but on temperature.

So heat index is based on temperature and relative humidity which is in partly dependent on temperature. Hmmm

Stick with dry bulb temperatures.

As my father tells me "It never used to get so hot until they invented heat index." :)

[TLAM Strike]

Yea it was over 125 near the pizza oven at work the other day. :(

You sir will boil in orbit around Earth.

No you would not, the water on your skin might boil off (then freeze solid) but the whole blood boiling out your ears thing is a myth.

http://www.geoffreylandis.com/vacuum.html

[vienna]

No you would not, the water on your skin might boil off (then freeze solid) but the whole blood boiling out your ears thing is a myth.



You obviously have never had bad mescal before... :)

...

[Buddahaid]

I wasn't thinking of an explosive decompression but your fluids boiling off. However, I do stand corrected as to the overall reaction. Interesting that your own blood pressure is enough to prevent boiling.

I was remembering the first chapter of 'Satellites, Rockets and Outer Space' by Willy Ley which describes a pot of water at 100^F boiling at about 12mi in altitude and being the point where body fluids would start boiling.

[Gargamel]

No active blowers, per se, just a few scrubbers (negative suction) at points around the room. No discernable draft really.

@platapus. Ah that makes more sense.

We had a new kid on the line today, when it 102 at 0630, he said "damn it's hot up here!". We all just laughed at him. One guy went a put a jacket on to make fun of him. That only lasted
About 20 minutes though.

[Platapus]

It is quite common for me to be in a meeting, sitting there basting myself with my own juices because of the heat and have someone sitting next to me with a coat on shivering.

I guess my comfort range is about 20 degrees cooler than most other people. It is really inconvenient and uncomfortable though. In fact, it sucks. :down:

[mookiemookie]

Ah, you work in Houston I see. :cool::sunny: