Intuition For Reading PV & Ts Diagrams

[@faisalmayanja1]

Great job and thank you - I don't understand why my professor can't understand that we need this type of breakdown BEFORE we get into the really complex equations and theories. Now it all makes so much more sense.!

[@ahmirjaxen9480]

pro tip: watch movies at Flixzone. Been using it for watching loads of movies recently.

[@franklinalonzo3657]

@Ahmir Jaxen Definitely, have been using Flixzone for months myself :)

[@brixtonalijah2952]

@Ahmir Jaxen Yup, been using Flixzone for months myself :D

[@HawkGTboy]

Your professor knows what he’s doing. He wants to weed out the people who can’t conceptualize this stuff on their own.

[@fissilepear7805]

@@HawkGTboy His professor is a dick, professors are paid to TEACH, not weed out

[@aronbriggs7783]

Omg 7 years later. This helped me so much ty 😊

[@maanasmanesh707]

its so clear to me now whilst i'm studying for my thermo exam. Thanks a ton!

[@IvertyNgweshe]

Julia you've helped me couz this wasn't making sense to me but now I will become good at it thanks ❤

[@potatostarch9363]

that "cool" at 4:45 killed me haha thanks for the vid! will definitely help me not die in my thermo exam :D

[@d4gz860]

Thank you!!!!! Don't know where I'd be without this video!

[@ishtiyaqimthiyaz]

Ahh I was looking for more videos on how this like the calculations too. I finally understood through your video. I know 7 years is a long time, but I would definitely watch to learn.

[@maxmorch-monsted2656]

Watching this 5 years later in the UK has actually saved me thank you

[@julialin1231]

Love that this random video is still helping people! Good luck on your exams!

[@joshuacharlery5826]

It makes so much fricking sense now!!! Holy Cow! Somebody please give that girl a sponsor! Geez!

[@adithyasamel]

I have my HVAC test tomorrow and this was a life saver. Thanks a lot🤗🤗

[@Frankline1202]

Kudos for the great job done 👍

[@Limiiit]

Im also studing mechanical engineering and this helped me so much!! thanks from Spain! :D

[@yodartt]

I can confirm, one year after you and the symptoms remain.

[@hisyamhasbi8257]

2024 and still going strong ​@@yodartt

[@meixuanxiao2776]

THANK YOU Lin saved me a lot of time summarising these myself

[@hectorfigs95]

this is going to help me on my Thermo test, thank you

[@jktrader37]

Thank you Julia ! You did a great job ! This is really difficult for me to understand, but your presentation helps a lot ! All the best to you ;-)

[@scott8879]

Wish I knew this when I took Thermo. Great video!

[@karldavid3661]

Thank you so much! This helped a lot I just couldn't focus well because you're so beautiful and I'm just staring at your face most of the time.

[@skylerstevens8887]

Not too shabby. The video wasn't fancy like a full time youtuber but the points that were important were gotten across!

[@abhilashpappachan5186]

I explains lot clearly and give me a exact image . Thanks a lot for the effort taken for making this vedio

[@mertcabilar]

Julia I'm out of your world yet thats good to see such a beautiful soul trying to give out to world what has been learnt. I'm good with philosophie and with your help, better at thermodynamics, thanks a lot :)

[@ScuffedF1]

You're the GOATm exactly what I was looking for !!

[@jarrodsiebert4233]

youre a bit of a legend for this

[@joshua7015]

Adiabatic means that no heat transfer occurs. Entropy is constant ONLY in a reversible, adiabatic process but not in an irreversible one.

[@suheladesilva2933]

Thanks a lot, the video was very helpful.

[@sonulokhandesharingexperie8353]

I liked your T shirt.. Love from india🇮🇳🇮🇳❤️ I m mechanical engineer

[@chinonsooragwam8833]

Thanks Julia, this gonna save me on my midterm 😩😩

[@magnihugemann7699]

0:53 Only reversible! adiabatic processes are isentropic (ΔS=0). In typical adiabatic processes, there is no heat transfer across the system's boundaries (ΔQ=0)

[@borui2104]

Julia, you're awesome :)

[@elvinasgarov9423]

23/6/2022. I have state exam in 4 days and this is so helpful. Thank you Julia Lin for clear explanation :)

[@valmormn]

Very nice indeed! Congrats!

[@chrisdesigner_]

wow! A semester covered simply, very well... Thank you!!!! :)

[@joshuacharlery5826]

OMG Julia! You hit the spot!!!

[@jeremiahbenton7907]

Great explanations!

[@oxycope8821]

Muchs needed informations 4 my brains! Thx!

[@ProsperityDaniels]

Thank you so much. Please keep making more of these.

[@rocker-zi2po]

It really helped me. thnx...from India

[@o_noori1943]

This was a generally good video, and i would especially use this video for revision on key concepts!

[@jimmyjonestodd2556]

Great job

[@oxycope8821]

Gret exxplaniton. I lyke it! Smartness!

[@kayleeb6197]

Thank you so much for this

[@kalahar505]

This helps a lot, thank you sm 🙏🏽

[@crazyguy200705]

Think u can try to add some explanation on the equipment involved in the carnot cycle (compressor, turbine etc.) and try to explain heat pump and refrigerator, and also try explain some concepts like why the curve for adiabatic is steeper than the isothermal line, why adiabatic processes are also isentropic etc, I did spend some time to read it up on the internet just now :) Anyway very good job and clear explanation, pronunciation is nice and clear n u seem very passionate about the subject!

[@HALEdigitalARTS]

Huge help. Thank you so much for making the video!

[@mariogiraldo2533]

Thanks!!! It was really useful

[@roronoa_zoro911]

At 5:54 I think your air standard cycle represents the T-S cycle in wrong way because the T3 is the maximum temperature where as T4 is temperature less than T3 but greater than T2. By the way I like the line "Believe me I am Engineer😂😂" I know every engineer's hardships. And love your content ❤❤. And can we join in insta.

[@subhankapadi6263]

Thank you so much for the explanation!!! It was really helpful in making my understanding clear!!!!

[@escaleetor]

Thank you for making it extra simple!

[@AN-bw7im]

I am majoring in biological engineering but this is still really helpful. So thanks!

[@octopilabs]

So helpful!! Thank you!

[@e.m.1766]

Awesome! Thanks!!

[@vidzofivi]

Thank you very much

[@abmoustafa1]

Very informative

[@Indianshortsrj02]

Love you mam 😍❤️

[@katherinebeltran2704]

slay Queen!!!

[@eheheheheheh6924]

Oh my god thank you u like a angel 😘😄

[@FulvioGaggioli]

You are good!

[@ravipartapsinghrandhawa446]

thx so much loved the video!! #youmademepassthiscourse

[@hectornonayurbusiness2631]

Great video

[@FrengkyManurungparmedan]

I like the explanation of video..trust me I'm not engineer...😂😂😂

[@mr.mindstorm8096]

Isotherms on T-S diagram are Parallelogram to S or T?

[@SideswiperRocket]

hello Julia... it really helped... may u help me with some more topics...

[@abdelrahman5326]

Bravo Bravo Bravo !

[@josefbokedal497]

thank youuuuuu

[@maxmai33]

谢谢小林同学

[@Elman219]

Watching this 20 mins before my exam 😂

[@maartenmtr3022]

thank you

[@Яна-п8л]

Женщина просто лучшая, если б не она, я бы этого гребаного Романюка и ТТД учила бы полтора года. Так же хочу сказать спасибо тиндеру за то, что я выучила английский

[@norwaydude96]

thanks!

[@kyledonald6007]

sweet vid !

[@naodtesfalem6758]

I trust her, she is an engineer...

[@JohnnyJr396]

Thank you. I’m having a hard time with entropy. Can anyone tell me what constant entropy means? Thanks

[@carultch]

The short answer is that entropy is a measure of the disorder in a system. A process happening with constant entropy, means a reversible process with no heat transfer. Idealized processes that expand and compress fluids, are examples of constant entropy processes. That is an oversimplified explanation, but the idea is that time's arrow always points to either an increase in entropy, or constant entropy. You cannot destroy entropy; you can generate it, keep it the same, discard it to your surroundings, or bring it in from your surroundings, but you cannot destroy it without time running backwards. Entropy enters a system with heat transfer, and the amount of entropy is proportional to the heat transferred and inversely proportional to the Kelvin temperature at which it transfers. The formula is delta S = delta Q/T, for a constant temperature heat addition process. So an adiabatic and reversible process will have no change in entropy. A reversible process, is an idealized version of a process that doesn't destroy any entropy. The process is possible in both directions. Examples of such processes that could be reversible in the upper limit of perfection are: Motors and generators Turbines and compressors Compression and expansion of a gas in a cylinder with no heat transfer at the same time Heat transfer across an infinitesimal temperature difference Electric current through superconductors The following processes are inherently irreversible: Throttling valves Sudden expansion of a gas Heat transfer across a finite temperature difference Mixing Any process involving frictional heating or ohmic heating

[@JohnnyJr396]

@@carultch thank you. That’s a lot to think about. I appreciate it!

[@vishnuvnair5088]

Thank you so much. You are such a wonderful teacher❤️ Lots of love from INDIA

[@kushagrak960]

Haha her t-shirt 😂

[@msrazaguru2235]

hi where do you belong to

[@ivansostarec6793]

Thank you!

[@soumenmandal4760]

In middle of pv diagram there will be mixture of liquid and vapour not (liquid and gas). But I like your explanation 👍

[@philmybutup4759]

Got 20 minutes before my exam wish me luck

[@kabbirhossain7816]

It would be more helpfull if you included the P-h diagrams too. Btw, it was helpful.

[@danemarkabad2494]

Isn't it mass of vapor over mass of liquid minus the mass of vapor?

[@carultch]

Quality is mass of vapor, over total mass of liquid plus vapor. We define it this way, because we want high quality steam (i.e. mostly vapor) to exit a turbine.

[@tomylim6022]

AWESOME!!! Btw did you win? lol

[@mikegroger6708]

yes indeed

[@tariqueanwar2732]

can u plz use whiteboard so that the diagram would be clear to see!

[@rashedkhan6766]

trust me im an engineer

[@rawizulkefli]

Nooo i just saw this video after my exams 😭

[@kennethlimjianhon2956]

btr den my swedish lecturer LOL

[@manarbuqai7231]

Adiabatic is not certainly isoentropic!

[@carultch]

Idealized adiabatic processes are isentropic. Some adiabatic processes are not, such as a throttling valve.

[@Liam23333-f]

👇if you’re a chemical engineer student

[@stargrimm]

Great video

[@claramelb7476]

Thank you!

[@jamesmarvingatdula1304]

thanks!

[@harmannd7270]

Thank you!