Lecture Series on Heat and Mass Transfer by Prof. S.P.Sukhatme and Prof. U.N.Gaitonde, Department of Mechanical Engineering, IIT Bombay. For more details on NPTEL visit nptel.iitm.ac.in
*Summary of Video* 0:00 = countinution on last session i.e solar radiation 7:55 = laws of heat transfer 8:05 = types of laws 9:45 = Fundamental laws 10:15 = subsidiary laws 11:10 = Closed & Open System 16:15 = Law of Conservation of Mass 28:00 = One dimensional flow 38:39 = Forces acting on fluid inside control volume 43:34 = First law of thermodynamics Have a beautiful day...keep studying... Leave a like ❤️❤️
In this video he said that accumulation is zero for both steady and unsteady states as well for incompressible fluids. How is that possible?? Unsteady in the sense there will be an accumulation right. Can anyone explain plz!
In simple terms.. Heat q is an inexact differential. It means there is no such function Q which can be written as Q=∫đq.No such function of Q exists. If you need a complete detailed explanation, I suggest you to check this link farside.ph.utexas.edu/teaching/sm1/lectures/node36.html
I see that the term "control volume" and an "open system" are the same, but is there not also a different name for a closed system? I read that it is also known as a control mass.
lol, he cannot draw a proper horizontal line. That apart, what an amazing professor. IIT is known because of its standard of teaching. Thank you for all the uploads
Fixed amount of matter: fixed amount of mass [kg]. The size of the system can change, but the mass is the same. Fixed size: fixed amount of volume [m^3]. The mass inside the fixed volume can change. Like putting more stuff into a box, where the box is your fixed volume. Examples: Fixed amount of matter: Think of a closed balloon. If the air inside the balloon heats up, it expands (energy flow + change of boundary) but there is still the same amount of matter inside the balloon, because mass doesn't flow in or out of the closed balloon. Fixed size: you choose your control volume, for example the room you are in. You can open a door and windows, and air, insects and other stuff can flow through the room (boundaries of your control volume).
A control volume system is the system in which only volume of the system is fixed so mass can come and go out of the system it may be case for steady state that mass flow in and out are same but mass will flow out of the system so there is mass continuous mass and energy interaction for control volume and hence it is called the Open System.
*Summary of Video*
0:00 = countinution on last session i.e solar radiation
7:55 = laws of heat transfer
8:05 = types of laws
9:45 = Fundamental laws
10:15 = subsidiary laws
11:10 = Closed & Open System
16:15 = Law of Conservation of Mass
28:00 = One dimensional flow
38:39 = Forces acting on fluid inside control volume
43:34 = First law of thermodynamics
Have a beautiful day...keep studying... Leave a like ❤️❤️
Thank you so much Ravi😇
Best lecture on HMT , i am seeing in 2024.... Who is with me in 2024
Awesome explanations. Much better than my college professor. Learned a lot extra from his lectures.
For University exam ,this lecture 2 is not as such important for exam so if you are in hurry then you may jump to next lecture lecture number 3.
Excellent lecture by Prof.S.P. Sukhatme, thank you very much sir
36:47 : By elementary area he means elementary volume.
Amazing !! ..these concepts are so important to understand computational fluid dynamics as well ....
One of the hidden gems in the internet
In this video he said that accumulation is zero for both steady and unsteady states as well for incompressible fluids. How is that possible?? Unsteady in the sense there will be an accumulation right. Can anyone explain plz!
Listen carefully
its because he assumed that his CONTROL VOLUME has constant volume. so when density is invariable for the fluid, the mass inside is fixed.
simply superb!!!!!!!!!
Wonderful teaching..Thank you very much..
We cannot use differential notation for Work as it is a path function.Any way, awesome explanation.Thank you Sir.
why??
In simple terms..
Heat q is an inexact differential.
It means there is no such function Q which can be written as
Q=∫đq.No such function of Q exists.
If you need a complete detailed explanation, I suggest you to check this link
farside.ph.utexas.edu/teaching/sm1/lectures/node36.html
please,how i can download the book of this prof .God bless him
Unforgettable sir
Great teaching no doubt! bt wats tat song in the beginning of the video???
I see that the term "control volume" and an "open system" are the same, but is there not also a different name for a closed system? I read that it is also known as a control mass.
a late reply from a present college student but yes you're right
more effectively lechers than my clz pro. n i learn it.
excellent
Excellent sir...
Wonderful presentation
awesome lecture!! learing alot more than i do in my actual heat and mass transfer class
Excellent teaching by Prof SPS!!!!
.
Excellent Explanation Sir
God bless you
I don't see any reason for disliking the video some people just find time to do so. Kon hai ye log? Kahaan se aate hain?
ये लोग चुतिया होते है. फुकट का ज्ञान लेने की भी औकात नही होती है ऐसों की. फुकट का ज्ञानसागर बह रहा है, किंमत नही है.
lol, he cannot draw a proper horizontal line. That apart, what an amazing professor. IIT is known because of its standard of teaching. Thank you for all the uploads
nice teaching of equations and laws
what is the difference between having fixed amount of matter and volume of fixed size as stated in close and open system ?
Fixed amount of matter: fixed amount of mass [kg]. The size of the system can change, but the mass is the same.
Fixed size: fixed amount of volume [m^3]. The mass inside the fixed volume can change. Like putting more stuff into a box, where the box is your fixed volume.
Examples:
Fixed amount of matter: Think of a closed balloon. If the air inside the balloon heats up, it expands (energy flow + change of boundary) but there is still the same amount of matter inside the balloon, because mass doesn't flow in or out of the closed balloon.
Fixed size: you choose your control volume, for example the room you are in. You can open a door and windows, and air, insects and other stuff can flow through the room (boundaries of your control volume).
awsom sir
really asum
Great sir ji
Why we have taken Vn only in integration?
Why the open system is called control volume?
A control volume system is the system in which only volume of the system is fixed so mass can come and go out of the system it may be case for steady state that mass flow in and out are same but mass will flow out of the system so there is mass continuous mass and energy interaction for control volume and hence it is called the Open System.
sunita kumari Its a system of fixed mass with fixed identity.
did not understand why two terms came in newton's second law of motion in control volume.
Closed system is a control volume
Gud
Ila chepte apudkavtay sir 30 videos 30 hours only 24 hours left for exam
😂
why did we add shear force in 1st law of thermodynamics. didnt understand! will some1 hwlp me out
*Viscosity
He was summing up all the work done on C.V, C.S included
what is the difference between this Vn and Vy ......somebody please reply
Vy is the velocity component of vn in y direction
goood
HERE IN 2021 :)
Thanks sir
what is Shaft work and Shear work !!
Sir
I will request to you explain in hindi and numerical also...plz
1.5x Xd