First Time I watched this when I was in the second year of my graduation. The second time, When I was preparing for Interviews. 3Rd time for GATE preparation. 4th time Again for Hvac Interviews. Now I am Pursuing MS in Mech and again I am watching this for HVAC coursework. Thanks, NPTEL.
Generally sir have a good knowledge but due limitations of subject RAC he isn't provide the more core knowledge BUT WHATEVER RESPECTED SIR TEACH IS GOOD AND SUFFICIENT FOR RAC VIEWERS ........ THANK'S A LOT SIR G .......
Sir, @49.18 as the diagram shows, the cold air entering the cabin has temperature greater than ambient temperature... (as you said that aircraft fly at very high altitude then this system is ok), but what if the ambient temperature is very high in case of low altitude or if aircraft is flying over deserts ..
![Jack Harlow - Hello Miss Johnson [Official Music Video]](http://i.ytimg.com/vi/Q86_nlRoIGw/mqdefault.jpg)
First Time I watched this when I was in the second year of my graduation. The second time, When I was preparing for Interviews. 3Rd time for GATE preparation. 4th time Again for Hvac Interviews. Now I am Pursuing MS in Mech and again I am watching this for HVAC coursework. Thanks, NPTEL.
Did you only watch or do you have some notes regarding the same !
If you have kindly send it .
TIA
Job well done! All of these videos - from nptelhrd - are very beneficial. Free refreshers and reinforcement!
welcome to refrigeration & air conditioning learning at a speed of a light.
this professor is just Awesome!!! Hatsoff!!👐👐
Thanks u very much sir for such a beautiful and in depth knowledge of RAC and thanks to nptel also.
Generally sir have a good knowledge but due limitations of subject RAC he isn't provide the more core knowledge BUT WHATEVER RESPECTED SIR TEACH IS GOOD AND SUFFICIENT FOR RAC VIEWERS ........ THANK'S A LOT SIR G .......
SIR YOU LOOK DESI BUT YOU ARE TRUELY THE ENGLISHMEN OF THE WORLD OF RAC. THANKS..
Kartik Ahlawat lol sir doesn't look desi at all.
sir your teching process is excellent.......
great efforts by hrd...............very helpful........
Great
thnx a lot for this beautiful lecture
Coooool lecture thnks;-)
best teacher
Sir,
@49.18 as the diagram shows, the cold air entering the cabin has temperature greater than ambient temperature... (as you said that aircraft fly at very high altitude then this system is ok), but what if the ambient temperature is very high in case of low altitude or if aircraft is flying over deserts ..
ambient temp. effects the c.o.p of the system only it doesnt effect the cabin temperature
very good
Why don't we use expansion valve in air refrigeration system?
Sarthak Thakar
air is assumed to be ideal in nature ..
isenthalpic process ie throttling mu=o
only pressure drop ,no temperature drop
guys! in simple cooling system of aircraft, dotted lines represent isentropic processes?
bro. , dotted lines shows irreversible path but isentropic process is shown by dark lines not dotted .....
Yes
Sir how do I get the PDF of your class
nptel.ac.in/content/storage2/courses/112105129/pdf/RAC%20Lecture%209.pdf
Only 240p ? upload in hd plz
lol Mohit Mishra 😂😂😂
mohit mishra : HAHAHAHAHAHAHAHAHAHAHHAAAHHAHAHAHAHAHAAHAAAA .......
where have explained what is ram effect?