Thermodynamics - 3-5 Using property tables for pure substances - fill in the blank chart

[@clearflow7925]

19:07 finally.... an explanation...... so just always use pressure table when given both temperature and pressure

[@endergridgaming732]

I’m studying for my thermo midterm and this was revolutionary! Thank you

[@apurvgupta5357]

Best ever playlist for engineering thermodynamics ❤❤

[@ndeath745]

I skip a couple class of my thermofluid lecture and you just save me. Big thank you from my heart.

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[@davidmeadows5447]

Loved the dynamics videos. Made an A with the help of your lectures! You've helped me once again with Thermo! Thank you so much!

[@fadlihafni3109]

thank you sir for the explanation,i got exam tomorrow,and this helps me understand more!

[@sebastianpelle833]

This was a great video! Thanks so much for your help. - A Civil Engineering Student from Australia

[@almost__there4146]

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[@Joe-hp1yb]

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[@nateman_]

Thanks, I have my midterm examination tomorrow :)))

[@aliasfaqaliashfaq763]

There is a level of development yourself in thermodynamic Exccelent to be in this channel

[@wolf.of.scbd14]

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[@gtu.4134]

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[@Abdo-yt5or]

Bro i have a midterm next week and u saved my ass

[@claudehermineakette9222]

A life-saving video. remain blessed sir,🙏🙏🙏

[@zanderlouw595]

Really superb explanations, thanks alot!

[@learnacc]

1, if the quality is given it is a saturated mix of liquid and vapor. 2; Always start at A4 OR A5 - if the substance is water. Thank you.

[@9LimaAlpha7]

17:00 what does quality (x) mean, and what does it refer to??

[@justsally9275]

Hellooo! I love your explanation. Its easier to understand. I wanted to ask.... How do you determine the phase by using the quality? Is there any specific range that we can refer to determine the phase?

[@engineeringdeciphered]

If it has any quality at all between 0 and 1 then the phase is a mixture. Some of my other videos in my thermo playlist might be helpful in looking at other phases.

[@justsally9275]

@@engineeringdeciphered will definitely try to look for that. Thank you!

[@salammuhsein600]

thanks sir, really helped me out

[@1l0vs84]

I might fail this subject Thank god I found your channel I hope i pass 😭😭😭

[@abdelrahmanalmawed7234]

how can u know the phase description from the quality ?

[@pomkarnayak7939]

Can u explain how to approach if h(enthalpy) and u(internal energy) given

[@TheBillyb99]

Hi, great video. at 11.40. you said 1000kPa is 0.1Mpa. Is this correct? I thought it was 1MPa as 1000x10^3 is 1x10^6? I am slightly confused on that matter. Thanks!

[@TheBillyb99]

Don't worry, just watched the rest of the video. Lol

[@engineeringdeciphered]

@@TheBillyb99 I have quite a few mistakes in the videos!

[@shotono3286]

This was so helpful!!! Thank you

[@twumwaabeatrice7513]

Thank you very much, you made it easy for me

[@dimbanimvula3672]

U are amazing sir nice work

[@duakhan5882]

For the refrigerant 134 a- if we have been given both temperature and pressure and we have to find specific volume and description of phase, but at the required temperature say -8 degree celsius, the pressure we have is greater than that on the property table, which would mean that it is a compressed refrigerant. There is no compressed table for refrigerants. What to do in this case? Please explain.

[@engineeringdeciphered]

Take the temperature given (not the pressure) and assume it is a saturated liquid at that temp. You are right it is a compressed liquid but with no compressed liquid tables just estimate its properties as those of a saturated liquid at the given temperature.

[@duakhan5882]

@@engineeringdeciphered that's what I did! That means I did right. Thanks for answering!

[@samkeloinnocent8316]

@@engineeringdeciphered For this case you use Refrigerant saturated liquid table or water saturated liquid table?

[@MOHAMEDMAMDOUHAEE]

that was an amazing video thank you very much for it

[@9LimaAlpha7]

for part (d) why did you assume the 'u' value is the same as the 'uf' ?

[@Violet-qn7db]

Because we already found that it’s a saturated liquid, so we only need the uf ( which is for the saturated liquid). I know it’s too late😭🙏🏻

[@Catno0-j5k]

Hello sir Thank you so much for your simple explanation❤. Just a question for the last part (e) why didn't we consider it compressed liquid what did the x = 0 let us think? because solving it as compressed liquid then making interpolation in the sat liquid table we could get a very close answer.

[@haziqhakimi4642]

THE GOAT !!

[@ezwanezreenebinmohamadstud7716]

Determine the amount of heat needed to completely transform 1 g of water at 15°C to steam at 115°C. Can someone solve this question as specific heat of water and steam are not given. Should we refer steam tables??

[@marcbrandonpoligrates7079]

i can still do interpolatiion to find the value of u. though it would be a long process

[@funwatchtv763]

Hi, why is it that for c) it's a superheated vapor and not liquid I am having trouble understanding the phases when it comes to knowing if it's a liquid or a vapor.

[@ameribrahim8997]

thanks. this helped a lot😁

[@tsuuuper]

e phase is sub-cooled liquid not saturated

[@fatihsevinc8626]

amazing work thank you

[@darshiniikrishnan615]

Thank you so much for the great lesson, sir. I now have a better understanding of the topic. I do have a doubt though. In the case of question (d), because we could not find the pressure in the compressed liquid table, we assumed that u is approximately u of liquid at the given temperature. So, we go to the saturated water table showing the list of temperatures and look for the corresponding u. What do we do if we cannot find the temperature in that list? I.e. the temperature given is a negative temperature which is not available in that table.

[@darshiniikrishnan615]

Also...this question is not related to the one above. What do I do if the temperature given in the question is too high, that is...it's not listed in the water table. only the high temperature and v are given.

[@HabteBayu-du7cw]

Very helpful

[@ralphdiab850]

In part b my table does not have 125. It goes from 120 to 130 directly, so what i did is that i found 1600 to be in range in the 120 and in the 130 so i knew it was a mixture. Then i did interpolation 3 times to find Uf and Ug and pressure for 125. Is that correct. Than you.

[@LukeJacobson-uky]

Hey thanks for the great explanation. I do have a question though. Does the quality equation (u = uf+x*ufg) still work for enthalpy and entropy?

[@engineeringdeciphered]

Yes!!! And specific volume as well

[@siyumdineththika6624]

Nice! Thank You!

[@sunmichoi6888]

Thank you so much!!

[@mehmetcelik3977]

Sir, we are waiting for Fluid Dynamics. I hope you will prepare this course lectures.

[@engineeringdeciphered]

Sorry, I don’t have time to do that in the near future.

[@HUSSEINAHMED-e6s]

Please sir I want to get all the TABLE can you send it or send a link to get it with many thanks

[@ibraheemmuslih4389]

بعدك محتاجهم أخي؟

[@kinfengwong9780]

if given T = 124 C how we find the Vg and Pressure ?

[@engineeringdeciphered]

To find Vg you would interpolate between the Vg value at 120 and the Vg value at 125. You need more info to find pressure - if it is a sat liq, sat vap, or sat mix then the pressure would be Psat. So you’d interpolate between the Psat at 120 and the Psat at 125. Does that help?

[@gamingclips1901]

Thanks man

[@AdewuyiAbdulquddus]

But why don’t you calculate for you u in number e

[@saminlabib7448]

I think it’s cause the X is 0 so the ufg becomes 0 and we left with uf only so no point in doing all that

[@sacrificemylifeforjuraku2279]

@@saminlabib7448 but how de know its liquid it could be vapor too

[@johndavecusi3897]

Can you send here your steam table? Thankyou

[@engineeringdeciphered]

Try this... www.dropbox.com/s/tuqy5e8657ysoda/Property%20Tables%20-%20Appendices%201%20and%202.pdf?dl=0

[@johndavecusi3897]

@@engineeringdeciphered thankyou so mucuhh. Big help

[@shehryarbhatti9516]

Bhai acha parhata ho..OHT pass karwa doga hamara ❤️🌅

[@معاذ_الجمَّال]

THANK YOUUU

[@greenfuture2640]

Really that was helpful. Thank you if you are not gay

[@aliozaltn5928]

I coughed watching this video

[@iwonderwhatisit]

y u look like ur tired