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Wet bulb temperature - why & when is it used? 

Process with Pat
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A wet bulb temperatures is the same as a "regular" temperature, but we wrap a wet rag around the bottom of the thermometer to measure it. But why the heck do we even do this? When is it useful?
Shout out to Themba Khumalo for my awesome artwork.
thembakhumaloart.com/
/ thembakhumalo_art_
/ themba-khumalo-art-540...
00:00 We know HOW, but WHY?
00:43 What we know from just a wet bulb
02:03 Wet bulbs are lower than dry bulbs
04:28 Dry & humid days
06:28 Relative & absolute humidity
07:30 Cooling towers
Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring, at least if you get your perspective from internet forums. These are not lectures. This is a place for you to leave thinking “Oh! That’s why...”
This channel is not only for chemical engineers - anyone who works with processes should be able to find something of value here.
#ProcessEngineering
#ChemicalEngineering
#ProcesswithPat

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31 июл 2024

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Комментарии : 207   
@tajammulkha_n6791
@tajammulkha_n6791 2 года назад
As a chm engg. student m pretty impressed, how he explained it clearly while most books fail to do so.
@ProcesswithPat
@ProcesswithPat 2 года назад
I really appreciate that!
@renungreningtyas3823
@renungreningtyas3823 3 месяца назад
so true, thanks Pat
@klaytonickinson
@klaytonickinson Год назад
I'm a 3rd yr civil engineering student. These youtube videos are more efficient than 90% of my professors! Thanks to talented people running educational channels like this one. Thank you!
@tamjidkabir1543
@tamjidkabir1543 День назад
Best part is the thermocouple demonstration ❤️❤️
@aaaaa1957
@aaaaa1957 2 года назад
Thanks, that’s the best explanation I’ve run across. 45 years ago while serving in the Marines part of my duty would be traveling through the hills in Virginia taking Wet Bulb readings for the base. The stations were near the Harriet Jets landing pads. Thanks again
@yefengli9512
@yefengli9512 18 дней назад
A super clear video explaining the concepts and application of wet bulb temperature. Much appreciated!
@Checkmate_Bro7
@Checkmate_Bro7 2 года назад
You’re the hero we need but don’t deserve
@ProcesswithPat
@ProcesswithPat 2 года назад
Basically a shitty Batman, huh? Pretty useless in a fight, and instead of money I have some knowledge about pumps XD
@Checkmate_Bro7
@Checkmate_Bro7 2 года назад
@@ProcesswithPat Haha! But all jokes aside, as a new engineer, I find your videos incredibly useful. I want you to know that your hard work is greatly appreciated, and I am looking forward to more videos in the future.
@xse345
@xse345 2 года назад
Haha .. The last part is quite accurate. I dont remember how many times I have explained to my non-engineer friends how to differntiate cooling towers and stacks.
@ProcesswithPat
@ProcesswithPat 2 года назад
Just a little joke, but there is truth to it, right!?
@xiaoyingfu6004
@xiaoyingfu6004 2 года назад
HIs last point was interesting!
@snusmumriken232
@snusmumriken232 Год назад
Cooling towers scare me now because of the journalism. They look scary and big and smoky
@dp8178
@dp8178 13 дней назад
Kudos to you, this was the only video that explained it simply enough for me to understand!!!
@cwj9202
@cwj9202 Год назад
Excellent description. Here the dry western part of USA, swamp coolers are utilized to cool houses, but in the humid South with its high humidity, the same swamp coolers don't function as well as on the west coast.
@vladimirm6908
@vladimirm6908 2 года назад
Finally proper explanation! Thank you very much for your time and effort!
@ChemEngWeekly
@ChemEngWeekly 2 года назад
Great concept explanation pat! Technical, yet simple and clear, 10/10 would recommend 👍
@irisforgiarinipasini1753
@irisforgiarinipasini1753 2 года назад
OMG finally someone that could explain the difference between wet bulb and dry bulb temperature clearly! I really really appreciate it. I understand now! Thank you very much.
@razhanmatipano3468
@razhanmatipano3468 Год назад
This is probably the best explanation I've heard for dry & wet bulb and I work in the AC industry as a mechanical engineer.
@pwrofmusic
@pwrofmusic 11 месяцев назад
Im an oil tanker captain. This was the basics of what i had to do. During my training many years ago. Well explained.
@user-dd2rb6mt9w
@user-dd2rb6mt9w 9 месяцев назад
Finally I found RU-vid useful and productive
@billigerfusel
@billigerfusel Год назад
First video that provides the explanation why not just what it is. Hats off to you, sir.
@hassangoudarzifgf931
@hassangoudarzifgf931 Год назад
Amazing expression. Thx. English is my third language but I understand it 100% .
@jbragg33
@jbragg33 23 дня назад
Cool I finally understood this wet bulb nonsense lol
@Mikeofindy
@Mikeofindy 9 месяцев назад
Explained far easier to understand compared to what was taught to me in my HVAC schooling.
@Springer5
@Springer5 2 года назад
If you're not a professional educator, you should be. Easily the clearest, most effectively presented lesson on WBTs I've ever seen. Thank you.
@akshaiambro702
@akshaiambro702 2 года назад
Conceptual Clarity in your explanation is outstanding...patience is a virtue
@tunaman2200
@tunaman2200 Год назад
Great job explaining wet bulb! Thank you very much for this!
@lendssadiasa4814
@lendssadiasa4814 10 месяцев назад
im glad you exist in YT. you really explained it well
@Krizbonz
@Krizbonz 4 месяца назад
The 'Wet Bulb" just turned on in my brain, finally I understand!!! Thank you (and thanks for the American translations hehe)
@chaitanyadesai1101
@chaitanyadesai1101 2 года назад
An absolute genius....Great job Pat.
@ibrahimal-saif9322
@ibrahimal-saif9322 2 года назад
This video is just perfect, now I understand the difference
@prasadadavi6618
@prasadadavi6618 Год назад
Thank you very much.... 🙏.... I will never and ever forget the concept. ❤️
@mxcollin95
@mxcollin95 8 дней назад
Excellent, excellent video! 🤙
@classycashew
@classycashew Год назад
THANK YOU finally an explanation that makes sense. Thank you so much 😭
@mushfiqurrahman8659
@mushfiqurrahman8659 2 года назад
perfectly explained ..after going through multiple youtube videoa. I finally found a perfect explanation
@Aatir361
@Aatir361 5 месяцев назад
One of the best explanation. a use of Whyyyyyy whyyyyy 👌👌👌👌
@stevenphiri8041
@stevenphiri8041 11 месяцев назад
I love this channel man. Keep up the good work
@panoskb9405
@panoskb9405 Год назад
What an amazing video one more time! :) We are looking forward to your next videos! :)
@zeyadib1211
@zeyadib1211 11 месяцев назад
This is the best explanation ever for wbt! you should return to making these awesome videos.
@michaelbruwer4156
@michaelbruwer4156 Год назад
Thank you. Very helpful. Excellently done. Graciously presented.
@ryaneads6271
@ryaneads6271 2 года назад
This was a great video and was exactly what I was looking for. Thank you!
@keithlynch3169
@keithlynch3169 6 месяцев назад
Great, thanks very much for increasing my understanding!
@hasir_dh
@hasir_dh 25 дней назад
amazing video for an HVAC engineer as well
@conniecombs5428
@conniecombs5428 2 года назад
Thank you. I never make RU-vid comments, but this was so helpful and well explained.
@subomile
@subomile Год назад
Amazing video Pat!
@meetshah2365
@meetshah2365 Год назад
Thank you!! Concept got clear.
@shantasubedi2636
@shantasubedi2636 Год назад
Thank you very much ,you really cleared my doubt.
@okjuuuuuudy
@okjuuuuuudy Год назад
the part about the pictures of cooling towers being used in news about pollution is so true
@mikailali5888
@mikailali5888 Год назад
Sir! God bless you. You have done a better job explaining than my PHD professor.
@suemiller9506
@suemiller9506 Год назад
This was a great explanation and I liked the simple but clear sketches - you made it easy to understand and remember the concept. Also, I enjoyed your final 'trigger' comment - I always wondered about those climate change images of towers spewing something - now I know, they're just cooling towers 'spewing' water vapour.
@chavsny1578
@chavsny1578 Год назад
Wow this was very well explained thank you.
@nathandaubis819
@nathandaubis819 2 года назад
ANOTHER SOLID MOMENT IN HISTORY
@ProcesswithPat
@ProcesswithPat 2 года назад
Seems pretty epic!
@muhammadadilabbasi6741
@muhammadadilabbasi6741 Год назад
Super Awesome...elegantly explained
@galaxymist7396
@galaxymist7396 2 года назад
The shower analogy was SO informative, great video.
@manaseetelaang328
@manaseetelaang328 Год назад
Thank you for this explanation, this concept is a part of my course but I struggled to understand the purpose and this video helped a LOT!
@waqasahmadabasi8693
@waqasahmadabasi8693 Год назад
Fantastic way of explaining . Got it
@dscottn1016
@dscottn1016 11 месяцев назад
Awesome video. You should be a teacher. Great video. I'm an hvac technician. I love your explanation.
@mohamedelbohy8507
@mohamedelbohy8507 Год назад
Many Thanks for you detailed explanation
@Smthe-ib3sz
@Smthe-ib3sz Год назад
Absolutely brilliant explanation Sir
@richardkwamenkrumah313
@richardkwamenkrumah313 2 года назад
Great explanation Pat! Very well explained
@esanariam
@esanariam 2 года назад
Excellent Explanation, Thanks a Lot!!
@franciscojaviervelasco5601
@franciscojaviervelasco5601 9 месяцев назад
Really good video. Thank you!
@MrUbiquitousTech
@MrUbiquitousTech 2 года назад
Great video, thank you for sharing.
@snusmumriken232
@snusmumriken232 Год назад
This is a goated explanation of this concept thanks bruh
@kshitijmishra9100
@kshitijmishra9100 3 месяца назад
That is really a fantastic explainaition..... kudos!!!!!!!
@salimakallel6092
@salimakallel6092 Год назад
Great explanation Thank you very much it helps a lot !!!!!!!
@IrishSnwbrdr
@IrishSnwbrdr 2 года назад
Studying for my prelim and I just did not understand my professors explanation in class, this totally cleared it up, thank you
@ProcesswithPat
@ProcesswithPat 2 года назад
Awesome! That’s why I did it. Best of luck for the prelim Kevin!
@wantedkiller23
@wantedkiller23 2 года назад
GREAT EXPLNATION! THANKS!
@trishachokshi8414
@trishachokshi8414 2 года назад
I finally get it! Thank you so much for this.
@ProcesswithPat
@ProcesswithPat 2 года назад
Awesome! That’s why it’s there…
@akshaykumardayma4951
@akshaykumardayma4951 2 года назад
Lovely bro...You are the best teacher.....
@lovelymaheh5105
@lovelymaheh5105 10 месяцев назад
Hats off to u sir....great explanation...
@affanbhaijaan65
@affanbhaijaan65 2 года назад
You deserve more subs😎
@ProcesswithPat
@ProcesswithPat 2 года назад
If that is so then I will get them eventually. Thanks for the nice comment!
@OsmacksO
@OsmacksO 2 года назад
Thanks, very helpful.
@rev.shannonkimbell-auth6995
Aha! I get it now. THANK YOU!
@seekingrafael5630
@seekingrafael5630 Год назад
Cheers! Very useful. Much better than just reading the words in my book. :)
@saadqadeer7807
@saadqadeer7807 2 года назад
Epic Explanation. Your channel is really underrated!
@ProcesswithPat
@ProcesswithPat 2 года назад
Thanks man! I’ll keep at it!
@wilnum1
@wilnum1 2 года назад
This was a great video … on point with the information very well understood
@girishmhatre483
@girishmhatre483 2 года назад
Most of my concepts related to wet bulb temperature are cleared with this video. Thank you so much sir.
@ProcesswithPat
@ProcesswithPat 2 года назад
Nice! Make sure to check out the difference between wet bulb and dew point too!
@sharayu3410
@sharayu3410 2 года назад
Thank you so much for explaining the why thing
@ProcesswithPat
@ProcesswithPat 2 года назад
Trust me, it wasn’t obvious to me when I was studying… It only came afterwards!
@davidecasella_
@davidecasella_ 2 месяца назад
fire background setup man, fr
@MuhammadRahatLatifTousif
@MuhammadRahatLatifTousif 3 месяца назад
outstanding explanation
@malikhassamzahid6301
@malikhassamzahid6301 Год назад
simply.. legend❤
@chandansangi06
@chandansangi06 Год назад
Cleared my basic concept
@gelomelo3426
@gelomelo3426 Год назад
Super excellent 👏
@saradiadas141
@saradiadas141 Год назад
crystal clear explanation ☺
@anshadmnassar
@anshadmnassar 8 дней назад
Discovered your channel nearly. Awesome content and quality. Please do more videos.
@pravinsamgir964
@pravinsamgir964 2 года назад
Thank you. Very well explain....
@DreamLand20
@DreamLand20 2 года назад
Great explanation. Really appreciated for useful video.
@gypsyinabout
@gypsyinabout Год назад
I finally understood. Thank you for the visual input, the practical examples and the clear explanation. If I might, I suggest you to change the title. This video wasn't my first choice because I was looking for an explanation for dry and wet temperature. Thank you again :)
@wowmath5691
@wowmath5691 2 года назад
Thank you so much you made it so crystal clear
@ProcesswithPat
@ProcesswithPat 2 года назад
Awesome, that’s why it’s there! Out of interest, was there something you didn’t get before watching? And if so, what was the confusion?
@lakshandissanayake4348
@lakshandissanayake4348 2 года назад
simple explanations! excellent
@taxfree4603
@taxfree4603 Год назад
excellent explanation
@amiralifouladimehr8144
@amiralifouladimehr8144 2 года назад
I really enjoyed ,it was awesome!
@ProcesswithPat
@ProcesswithPat 2 года назад
Nice! That’s what it’s there for!
@HaythamSAtia
@HaythamSAtia Год назад
Thank you so much.
@jayshridesai6471
@jayshridesai6471 2 года назад
Great explaination.... Please keep going.... A lot more better than the bookish explaination.
@sumitrai9370
@sumitrai9370 5 месяцев назад
Cool video..... very helpful thank you...😊
@chisehwechalamba666
@chisehwechalamba666 2 месяца назад
Great video
@unimoanacats989
@unimoanacats989 2 года назад
Excellent
@clementasare5781
@clementasare5781 2 года назад
Thank you so much. Great explanation.
@ProcesswithPat
@ProcesswithPat 2 года назад
Thanks, glad you thought so!
@lekhrajdewangan8491
@lekhrajdewangan8491 Год назад
That is exactly what I wanted to know. Thankyou so much sir. I am final year mechanical engineering student and I really want to understand its physical significance.
@Alpen_Blitz
@Alpen_Blitz 2 года назад
Well done sir! Please keep up the good work sir. Thnk u!!!
@SuperLions7
@SuperLions7 2 года назад
Great video! I can't understand things well if I'm not able to understand/visualize the mechanism by which a said thing works. You helped me get that understanding in this video! Thanks
@ProcesswithPat
@ProcesswithPat 2 года назад
You bet! That’s why it’s there…
@alpuysal8567
@alpuysal8567 2 года назад
Very informative and well prepared! Thanks
@ProcesswithPat
@ProcesswithPat 2 года назад
You’re welcome! Thanks for the nice comment.
@niceguy4801
@niceguy4801 9 месяцев назад
Thankyou so much sir!
@Bump2310
@Bump2310 2 года назад
Really nice and easy to understand explanation - thank you! I'd only add that the process doesn't start with water insisting on evaporating on its own. Heat energy moves from our skin or the thermometer bulb to the relatively cooler layer of water (which in turn is cooled quickly by the air temperature which is cooler than skin most of the time) because it has no choice about it (it has to follow the temperature gradient) and that's what makes us feel cooler (heat is being sapped from your skin). Then the increased heat content of that water causes it to evaporate which adds to the cooling effect as the warmed water doesn't stick around to create a new, insulative watery skin at the same temperature as your body.
@ProcesswithPat
@ProcesswithPat 2 года назад
Hey there! I’ve been thinking about this one for a few days… I’m considering the scenario where you have a bunch of water on a plate with air above it all at the exact same temperature… if you introduce bone dry air, also at the same temperature, the the water will evaporate and cool down the plate, even thought the initiating event wasn’t heat transfer from a hot surface to the cooler water. Bit of a chicken and egg scenario? Not sure…
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