Тёмный
Josua Meyer
Josua Meyer
Josua Meyer
Подписаться
Professor and Head of the Department of Mechanical and Aeronautical Engineering, University of Pretoria, South Africa
Комментарии
@Tracks777
@Tracks777 4 года назад
awesome content
@matthewws5694
@matthewws5694 4 года назад
Thanks Prof Meyer. The recording of your lectures is highly appreciated
@maticherzog
@maticherzog 5 лет назад
Great stuff. Thank you for the upload and a very clear and understanding lecture
@shatrughnaprasaddwivedi1231
@shatrughnaprasaddwivedi1231 5 лет назад
During my school days I remembered a simple conversion trick to convert km/h to m/s by multiplying kmph by 5/18 to get mps..Like 7km/h =7×5/18 m/s
@Mare_brewery
@Mare_brewery 5 лет назад
you are #1 professor
@Mare_brewery
@Mare_brewery 5 лет назад
v helpful lecture. thank you for all your effect
@mohammadsofakhodi888
@mohammadsofakhodi888 5 лет назад
Thank you, sir :) Keep it coming..
@HamzaAli-vl7gp
@HamzaAli-vl7gp 5 лет назад
Sir why doubling the mass flow rate halve the temperature
@karthikchowdary7583
@karthikchowdary7583 5 лет назад
Mr.Josua Meyer you are amazing. Please do refer R.C.Sachdeva heat and mass transfer.
@tonile-ol4412
@tonile-ol4412 5 лет назад
Dear Prof. Joshua Meyer, I just started watching your lecture videos. Your lectures are making a lot of impact in my life and teaching skill. I teach Heat and Mass Transfer in department of Mechanical Engineering, Rivers State University, Port Harcourt, Nigeria. In fact my students are really enjoying the lectures. Could you please kindly arrange the whole lectures in a series of chapters (playlists )or topics divided according to the topic because I didnt follow from begining. I will be very grateful because it be of great help to me and the students. I will also be grateful if you can assist me to get the textbook of Cengel and Ghajar. Thank you' my email is tonileo.ust@gmail.com
@tonile-ol4412
@tonile-ol4412 5 лет назад
Dear Prof. Joshua Meyer, I just started watching your lecture videos. Your lectures are making a lot of impact in my life and teaching skill. I teach Heat and Mass Transfer in department of Mechanical Engineering, Rivers State University, Port Harcourt, Nigeria. In fact my students are really enjoying the lectures. Could you please kindly arrange the whole lectures in a series of chapters (playlists )or topics divided according to the topic because I didnt follow from begining. I will be very grateful because it be of great help to me and the students. I will also be grateful if you can assist me to get the textbook of Cengel and Ghajar. Thank you
@HamzaAli-vl7gp
@HamzaAli-vl7gp 5 лет назад
Sir what is the significance of velocity boundary layer in convective heat transfer ?
@user-zv7sh8gd1v
@user-zv7sh8gd1v 5 лет назад
Hello Dr. I am interested in watching your lectures. I wonder if you have conduction lectures.
@indian_scouser_ynwa
@indian_scouser_ynwa 5 лет назад
Sir,@ 45:28 the value of pressure drop comes out to be 3Pa n' pumpin' power comes around 0.4456W
@mekidechea9169
@mekidechea9169 5 лет назад
الف شكر from Algeria
@biswajitswain5303
@biswajitswain5303 5 лет назад
😍 this gv me hope
@ahsansiddiqui271
@ahsansiddiqui271 5 лет назад
Very easy to understand Sir. Thanks.
@kingdhorajiya3683
@kingdhorajiya3683 5 лет назад
THANKS, SIR
@primoperez805
@primoperez805 5 лет назад
Thank you for this upload! Much appreciated
@emmanuelsansusthytardio5835
@emmanuelsansusthytardio5835 5 лет назад
Thank you so much Prof Meyer!!!
@emmanuelsansusthytardio5835
@emmanuelsansusthytardio5835 5 лет назад
Thank you so much Prof. Meyer, for sharing knowledge in such a clear way!!
@vloggie4u
@vloggie4u 5 лет назад
Sir excellent
@ro60319
@ro60319 8 лет назад
Nice presentation
@muhammadhasantariq8992
@muhammadhasantariq8992 8 лет назад
hello. I can't find his videos for chap 1,2 and 3. Can someone please give me the link. Thank you
@glicerialipura1961
@glicerialipura1961 8 лет назад
in the Nusselt number sample problem, the unit of k value of the air is watt,/ m K . while the unit of h is watt/sq m C, d o we have to convert K to C,
@asher5003
@asher5003 8 лет назад
so means that, we need two temperature which hot and cold in order to use heat exchangers. is it possible to use pvc or silicon material for heat exchangers??
@josesousa3288
@josesousa3288 8 лет назад
Thank you Mr. Josua Meyer... Keep explaining and making the future engineers dreaming and helping us improving the world... You sir are a MVP (Most Valuable Player) :)
@Kor88Di
@Kor88Di 8 лет назад
God bless you Doctor. I am taking the course now in summer semester. Thank you doctor.
@thinkingtank1027
@thinkingtank1027 8 лет назад
Hats off sir! You're teaching is worth gold!
@thinkingtank1027
@thinkingtank1027 8 лет назад
Sir, I'm confused with one concept of thermal resistance where you've taken the resistance due to convection and radiation parallel to the resistance due to conduction. Can you help me out with this doubt?
@RenormalizedAdvait
@RenormalizedAdvait 8 лет назад
Really a beautiful derivation amidst a shaky pronunciation.
@eugeniofernandes9963
@eugeniofernandes9963 8 лет назад
Excellent explanation, thank you very much. Greetings from Portugal
@GomaaFilms
@GomaaFilms 8 лет назад
Do you have any videos starting from chapter 1?
@RonisonSouza
@RonisonSouza 8 лет назад
Thank you Prof. Meyer from Brazil!
@abdelhalimsakr7251
@abdelhalimsakr7251 8 лет назад
hi , prof >>> can ypu tell me about any source of fins
@maurvinpatel5378
@maurvinpatel5378 8 лет назад
Dear Professor Meyer, Can you please tell a name of text book that you follow for heat exchanger design?
@guiguspi
@guiguspi 8 лет назад
Professor, I think you may have meant semi infinite bodies instead of lumped ones at 1:48 seconds, right? Thank you very much for your content here in youtube!
@ghismani555
@ghismani555 8 лет назад
Thanks professor for the video. I just have a question about tube shell heat exchanger. Is there any formula which links the dew pression within the condenser (hot fluid) and the temperature of the cooling fluid?
@sstavrin
@sstavrin 8 лет назад
What will happen if the same pipe as described in the example is in a room which has walls with a different temperature from the air. What does it change in the radiation? Thanks
@sstavrin
@sstavrin 8 лет назад
+Stephanos Stavrinides i think the radiation in this case will be from the pipe to the wall temp and room temperature will be irrelevant to the radiation, we will just consider it for the convective heat transfer
@fuxkin_handle
@fuxkin_handle 8 лет назад
Thx for sharing.
@adibasdas
@adibasdas 8 лет назад
see you on monday professor
@mjz7111
@mjz7111 8 лет назад
can you give us lectures about mass transfer convection
@cpromerov
@cpromerov 8 лет назад
great work!
@mjz7111
@mjz7111 8 лет назад
how about bank tubes
@mjz7111
@mjz7111 8 лет назад
thanks
@mertcang9180
@mertcang9180 8 лет назад
Thank you so much :)
@krishnabhagavan9621
@krishnabhagavan9621 8 лет назад
Sir.... This is d most exciting subject I found in my B. TECH just bcoz of U...... Tnxxxxxx a lot sir....
@krishnabhagavan9621
@krishnabhagavan9621 8 лет назад
I wish I could do My Masters in your university
@shahidkhon3725
@shahidkhon3725 8 лет назад
i think assumption of taking the wall temperature is constant is false. it cant be. becz the in order to maintain constant rise in fluid temperature the delta T should decrease.
@guiguspi
@guiguspi 8 лет назад
I think you got confused there. The assumption was Delta T = constant. You need a constant Delta T to get a constant Q (assuming a constant H).
@iman5496
@iman5496 8 лет назад
thank u sir. :) it would be helpful if the Conduction part be available also.