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Julia Lin
Приєднався 21 вер 2013
Intuition for Aerodynamics (Basic Math Only)
Excuse how tired I look. Mechanical Engineering, Aerodynamics
Переглядів: 954
Відео
Intuition For Reading PV & Ts Diagrams
Переглядів 54 тис.8 років тому
For Khan Academy Talent Search 2016. Mechanical Engineering, Thermodynamics Basics
Chinese Yoyo
Переглядів 41911 років тому
About two years in, this is a quick montage of tricks from one take, and attempts at double and vertical.
Thank you so much for this
Kudos for the great job done 👍
💯
Hii julia
Thank you very much <3
NICE
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)
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.
Nooo i just saw this video after my exams 😭
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 ;-)
Julia you've helped me couz this wasn't making sense to me but now I will become good at it thanks ❤
👇if you’re a chemical engineer student
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.
Omg 7 years later. This helped me so much ty 😊
thank youuuuuu
I have my HVAC test tomorrow and this was a life saver. Thanks a lot🤗🤗
THANK YOU Lin saved me a lot of time summarising these myself
Thank you!!!!! Don't know where I'd be without this video!
Julia, you're awesome :)
slay Queen!!!
Awesome! Thanks!!
Thanks a lot, the video was very helpful.
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!
Thank you so much. Please keep making more of these.
btr den my swedish lecturer LOL
This was a generally good video, and i would especially use this video for revision on key concepts!
Muchs needed informations 4 my brains! Thx!
Gret exxplaniton. I lyke it! Smartness!
You're the GOATm exactly what I was looking for !!
that "cool" at 4:45 killed me haha thanks for the vid! will definitely help me not die in my thermo exam :D
Watching this 20 mins before my exam 😂
Great job
Wish I knew this when I took Thermo. Great video!
Great explanations!
Bravo Bravo Bravo !
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.
I explains lot clearly and give me a exact image . Thanks a lot for the effort taken for making this vedio
youre a bit of a legend for this
Thank you!
Very informative
Isotherms on T-S diagram are Parallelogram to S or T?
23/6/2022. I have state exam in 4 days and this is so helpful. Thank you Julia Lin for clear explanation :)
trust me im an engineer
Not too shabby. The video wasn't fancy like a full time youtuber but the points that were important were gotten across!
Thank you. I’m having a hard time with entropy. Can anyone tell me what constant entropy means? Thanks
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
@@carultch thank you. That’s a lot to think about. I appreciate it!
Love you mam 😍❤️
thanks!
Thanks Julia, this gonna save me on my midterm 😩😩
Hey, your videos are helpful.
Thank you so much for the explanation!!! It was really helpful in making my understanding clear!!!!