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Josua Meyer
Добавлен 10 фев 2013
Professor and Head of the Department of Mechanical and Aeronautical Engineering, University of Pretoria, South Africa
Lecture 08 (2020): Heat Transfer Lectures by Prof Josua Meyer
This lecture is on the fundamentals of convection heat transfer. This lecture (3 March 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Просмотров: 4 290
Видео
Lecture 07 (2020): Heat Transfer Lectures by Prof Josua Meyer
Просмотров 2,1 тыс.4 года назад
This lecture is on the fundamentals of convection heat transfer. This lecture (25 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 06 (2020): Heat Transfer Lectures by Prof Josua Meyer
Просмотров 2,2 тыс.4 года назад
This lecture is on the fundamentals of convection heat transfer. This lecture (24 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 05 (2020): Heat Transfer Lectures by Prof Josua Meyer
Просмотров 2,5 тыс.4 года назад
This lecture is on the fundamentals of convection heat transfer. This lecture (18 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 04 (2020): Heat Transfer Lectures by Prof Josua Meyer
Просмотров 2,3 тыс.4 года назад
This lecture is on transient heat transfer and specifically the one-dimensional exact and approximate solutions for long plane walls, long cylinders and spheres. Two examples were conducted: (a) a steak which has to cool down in a refrigerator and (b) the freezing of oranges by a cold front. This lecture (17 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was pre...
Lecture 03 (2020): Heat Transfer Lectures by Prof Josua Meyer
Просмотров 2,4 тыс.4 года назад
This lecture is on transient heat transfer and specifically the one-dimensional exact and approximate solutions for long plane walls, long cylinders and spheres. This lecture (12 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and A...
Lecture 02 (2020): Heat Transfer by Prof Josua Meyer
Просмотров 4,1 тыс.4 года назад
This lecture is on transient heat transfer and specifically the lumped system method. The lumped system equation is derived and the Biot number is introduced. The limitations of the method is discussed and an example is conducted of time required for a brick to cool down in temperature. This lecture (11 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presente...
Lecture 01 (2020): Heat Transfer by Prof Josua Meyer
Просмотров 14 тыс.4 года назад
This lecture is a revision of heat transfer fundamentals. The three different modes (conduction, convection and radiation) is reviewed. This lecture (04 February 2020) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of...
Lecture 17 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,1 тыс.5 лет назад
This lecture is on the LMTD method used to analyze heat exchangers. This lecture (21 May 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 16 (2019) Heat Transfer by Prof Josua Meyer
Просмотров 2 тыс.5 лет назад
This lecture is an introductory lecture on heat exchangers. This lecture (20 May 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 15 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 3,1 тыс.5 лет назад
This lecture is on internal forced convection and focused on mixed convection. This lecture (7 May 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Aeronautical Engineering of the University of Pretoria, South Africa.
Lecture 14 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,2 тыс.5 лет назад
This lecture is on internal forced convection and focused on the general analysis (constant heat flux and constant wall temperature) of internal forced convection. It also introduced the new turbulent equations of Meyer et al (2019). This lecture (2 May 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year studen...
Lecture 13 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,8 тыс.5 лет назад
This lecture is on internal forced convection and focused on the general analysis (constant heat flux and constant wall temperature) of internal forced convection. It also introduced the new turbulent equations of Meyer et al (2019). This lecture (29 April 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year stu...
Lecture 12 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 3 тыс.5 лет назад
This lecture is on internal forced convection and focused on the general analysis (constant heat flux and constant wall temperature) of internal forced convection. The focus was more on the constant wall temperature. This lecture (25 April 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Jos...
Lecture 11 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,8 тыс.5 лет назад
This lecture is on internal forced convection and focused on the general analysis (constant heat flux and constant wall temperature) of internal forced convection. This lecture (23 April 2019) was based on the textbook of Cengel and Ghajar (5th edition) and was presented as part of a heat transfer class to the fourth-year students by Prof Josua Meyer, Head of the Department of Mechanical and Ae...
Lecture 10 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,9 тыс.5 лет назад
Lecture 10 (2019): Heat Transfer by Prof Josua Meyer
Lecture 09 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,2 тыс.5 лет назад
Lecture 09 (2019): Heat Transfer by Prof Josua Meyer
Lecture 08 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 2,4 тыс.5 лет назад
Lecture 08 (2019): Heat Transfer by Prof Josua Meyer
Lecture 07 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 1,7 тыс.5 лет назад
Lecture 07 (2019): Heat Transfer by Prof Josua Meyer
Lecture 06 (2019) Heat Transfer by Prof Josua Meyer
Просмотров 1,5 тыс.5 лет назад
Lecture 06 (2019) Heat Transfer by Prof Josua Meyer
Lecture 05 (2019) Heat Transfer by Prof Josua Meyer
Просмотров 1,6 тыс.5 лет назад
Lecture 05 (2019) Heat Transfer by Prof Josua Meyer
Lecture 04 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 1,5 тыс.5 лет назад
Lecture 04 (2019): Heat Transfer by Prof Josua Meyer
Lecture 03 (2019) Heat Transfer by Prof Josua Meyer
Просмотров 1,8 тыс.5 лет назад
Lecture 03 (2019) Heat Transfer by Prof Josua Meyer
Lecture 02 (2019) Heat Transfer by Prof Josua Meyer
Просмотров 1,9 тыс.5 лет назад
Lecture 02 (2019) Heat Transfer by Prof Josua Meyer
Lecture 01 (2019): Heat Transfer by Prof Josua Meyer
Просмотров 7 тыс.5 лет назад
Lecture 01 (2019): Heat Transfer by Prof Josua Meyer
Lecture 20 (2018) SD: Heat Transfer by Prof Josua Meyer
Просмотров 1,2 тыс.6 лет назад
Lecture 20 (2018) SD: Heat Transfer by Prof Josua Meyer
Lecture 20 (2018) HD: Heat Transfer by Prof Josua Meyer
Просмотров 1,6 тыс.6 лет назад
Lecture 20 (2018) HD: Heat Transfer by Prof Josua Meyer
Lecture 19 (2018) SD: Heat Transfer by Prof Josua Meyer
Просмотров 9386 лет назад
Lecture 19 (2018) SD: Heat Transfer by Prof Josua Meyer
Lecture 19 (2018) HD: Heat Transfer by Prof Josua Meyer
Просмотров 1,4 тыс.6 лет назад
Lecture 19 (2018) HD: Heat Transfer by Prof Josua Meyer
Lecture 18 (2018) SD: Heat Transfer by Prof Josua Meyer
Просмотров 9446 лет назад
Lecture 18 (2018) SD: Heat Transfer by Prof Josua Meyer
awesome content
Thanks Prof Meyer. The recording of your lectures is highly appreciated
Great stuff. Thank you for the upload and a very clear and understanding lecture
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
you are #1 professor
v helpful lecture. thank you for all your effect
Thank you, sir :) Keep it coming..
Sir why doubling the mass flow rate halve the temperature
Mr.Josua Meyer you are amazing. Please do refer R.C.Sachdeva heat and mass transfer.
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
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
Sir what is the significance of velocity boundary layer in convective heat transfer ?
Hello Dr. I am interested in watching your lectures. I wonder if you have conduction lectures.
Sir,@ 45:28 the value of pressure drop comes out to be 3Pa n' pumpin' power comes around 0.4456W
الف شكر from Algeria
😍 this gv me hope
Very easy to understand Sir. Thanks.
THANKS, SIR
Thank you for this upload! Much appreciated
Thank you so much Prof Meyer!!!
Thank you so much Prof. Meyer, for sharing knowledge in such a clear way!!
Sir excellent
Nice presentation
hello. I can't find his videos for chap 1,2 and 3. Can someone please give me the link. Thank you
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,
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??
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) :)
God bless you Doctor. I am taking the course now in summer semester. Thank you doctor.
Hats off sir! You're teaching is worth gold!
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?
Really a beautiful derivation amidst a shaky pronunciation.
Excellent explanation, thank you very much. Greetings from Portugal
Do you have any videos starting from chapter 1?
Thank you Prof. Meyer from Brazil!
hi , prof >>> can ypu tell me about any source of fins
Dear Professor Meyer, Can you please tell a name of text book that you follow for heat exchanger design?
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!
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?
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
+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
Thx for sharing.
see you on monday professor
can you give us lectures about mass transfer convection
great work!
how about bank tubes
thanks
Thank you so much :)
Sir.... This is d most exciting subject I found in my B. TECH just bcoz of U...... Tnxxxxxx a lot sir....
I wish I could do My Masters in your university
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.
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).
thank u sir. :) it would be helpful if the Conduction part be available also.