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Dr Bart's world of chemical engineering
Великобритания
Добавлен 1 июл 2020
On this channel are selected lecture courses that I gave at the University of Cambridge, UK for the Department of Chemical Engineering & Biotechnology. They include two final year modules on Rheology and Computational Fluid Dynamics, a third-year course on chemical process design and an introductory course about Chemical Engineering.
If you like what you see and find it useful, please let me know by subscribing. Thank you!
If you like what you see and find it useful, please let me know by subscribing. Thank you!
UW-Madison polymer processing (EPD650): lesson 1, part 1.
This introductory video serves two purposes. Firstly, it introduces the course, its learning outcomes, syllabus and assessment. It also describes the two text books that will accompany the course. The second purpose is to give a motivation for the subject. This is done by giving a brief history of some of the key moments in the development of polymer engineering before moving on to identifying the environmental challenges faced by the industry today.
Просмотров: 213
Видео
Take a break from the math and relax :)
Просмотров 962 месяца назад
Vexed by vector calculus? Confused by convection? Despairing with differentiation or indifferent to your integrals? Take five and relax with the adventures of Bertie the cat 😻
UW-Madison polymer processing (EPD650): lesson 7, part 6.
Просмотров 312 месяца назад
The final part of lesson 7 examines how to derive the fully-developed temperature profile for the effect of viscous dissipation in the Poiseuille flow in a slot. The momentum equation is solved initially to yield the velocity profile in the flow, and then the energy transport equation is solved to calculate the effect that viscous dissipation has on the temperature profile within the fluid flow...
UW-Madison polymer processing (EPD650): lesson 7, part 5.
Просмотров 332 месяца назад
The penultimate part of lesson 7 examines the phenomenon of viscous dissipation, or the internal friction that can be present in the flows of viscous liquids. The basic phenomena is discussed, and then its inclusion in the energy transport equation as a heat source term highlighted.
UW-Madison polymer processing (EPD650): lesson 7, part 4.
Просмотров 252 месяца назад
This part of lesson 7 takes a look at Heisler charts. Proposed in 1947, and used for many decades to gain insight into heat transfer problems, they may not receive the attention they deserve today. Not only can they still be used to get the "feel" of a heat transport problem very quickly, but they are also an invaluable source of validation data for numerical simulations.
UW-Madison polymer processing (EPD650): lesson 7, part 3.
Просмотров 182 месяца назад
The third part of lesson 7 examines the cooling of an injection moulded slab of polymer: an example of two dimensional, transient, heat transfer. As before the four-step workflow is followed, the problem understood, the energy transport equation simplified and then the resulting equations solved using Mathematica. Validation is carried out by means of comparing the numerical solution to data ex...
UW-Madison polymer processing (EPD650): lesson 7, part 2.
Просмотров 212 месяца назад
Part 2 of lesson 7 examines a two dimensional heat transfer case. The problem is examined carefully, the energy transport equation simplified to describe the problem and then the resulting equations solved using Mathematica. The answer is then validated against the analytical solution for one dimensional heat transfer.
UW-Madison polymer processing (EPD650): lesson 7, part 1.
Просмотров 262 месяца назад
The introduction to lesson 7 examines the use of twin screw extrusion in applications other than processing of synthetic polymers. Extrusion cooking and food production are alluded to and a case study of flavour burst chewing gum given. Video on twin screw extrusion: ruclips.net/video/N1QSToN7T_E/видео.html
UW-Madison polymer processing (EPD650): lesson 6, part 7.
Просмотров 193 месяца назад
The final part of lesson 6 examines how to solve a radiative heat transfer problem using Mathematica. It also addresses the importance of validating the numerical solution!
UW-Madison polymer processing (EPD650): lesson 6, part 6.
Просмотров 223 месяца назад
The penultimate part of lesson 6 has a very brief look at radiative heat transfer. The basic principles are outlined, along with how to incorporate radiative heat transfer either as flux-based energy transport or as a volumetric heat source term. The concept of effective emissivity is also introduced and discussed for systems that have a view factor of unity.
UW-Madison polymer processing (EPD650): lesson 6, part 5.
Просмотров 283 месяца назад
Part 5 of lesson 6 examines correlations that can be used to estimate the convective heat transfer coefficient for various geometries that are relevant to polymer processing. Both forced and natural convection correlations are discussed.
UW-Madison polymer processing (EPD650): lesson 6, part 4.
Просмотров 143 месяца назад
This part of lesson 6 solves the energy transport equation for a simple film casting process. Three different heat transfer scenarios are examined that involve combinations of conduction, convection and advection. The resulting temperature profiles are discussed in light of the "mental model" of the heat transfer that is initially developed by just thinking carefully about the problem before do...
UW-Madison polymer processing (EPD650): lesson 6, part 3.
Просмотров 93 месяца назад
The second part of lesson 6 examines some key non-dimensional groups that allow us to gain insight into the dominant modes of heat transfer within a problem. The Biot number, Nusselt number, Reynolds & Prandtl numbers are all discussed along with the Peclet number.
UW-Madison polymer processing (EPD650): lesson 6, part 2.
Просмотров 333 месяца назад
Polymer processes often involve changes of temperature and the transfer of heat. This part of lesson 6 introduces the energy transport equation and discusses each of the terms it contains. Underpinning principles: Scalars and vectors: ruclips.net/video/VbcFLEG5aH0/видео.html Vector calculus: ruclips.net/video/8JZvZpr2ZXc/видео.html
UW-Madison polymer processing (EPD650): lesson 6, part 1.
Просмотров 163 месяца назад
The introduction to lesson 6 features the multi-layer film extrusion process. This is discussed both in the light of multiple functional layers (for example, protective packaging for perishable foods) and a die design that splits and recombines multilayer film to increase the number of layers. A video of multilayer film extrusion can be found here: ruclips.net/video/atdksIv-xWk/видео.html
UW-Madison polymer processing (EPD650): lesson 5, part 5.
Просмотров 493 месяца назад
UW-Madison polymer processing (EPD650): lesson 5, part 5.
UW-Madison polymer processing (EPD650): lesson 5, part 4.
Просмотров 273 месяца назад
UW-Madison polymer processing (EPD650): lesson 5, part 4.
UW-Madison polymer processing (EPD650): lesson 5, part 3.
Просмотров 213 месяца назад
UW-Madison polymer processing (EPD650): lesson 5, part 3.
UW-Madison polymer processing (EPD650): lesson 5, part 2.
Просмотров 293 месяца назад
UW-Madison polymer processing (EPD650): lesson 5, part 2.
UW-Madison polymer processing (EPD650): lesson 5, part 1.
Просмотров 413 месяца назад
UW-Madison polymer processing (EPD650): lesson 5, part 1.
UW-Madison polymer processing (EPD650): lesson 4, part 5.
Просмотров 493 месяца назад
UW-Madison polymer processing (EPD650): lesson 4, part 5.
UW-Madison polymer processing (EPD650): lesson 4, part 4.
Просмотров 333 месяца назад
UW-Madison polymer processing (EPD650): lesson 4, part 4.
UW-Madison polymer processing (EPD650): lesson 4, part 3.
Просмотров 553 месяца назад
UW-Madison polymer processing (EPD650): lesson 4, part 3.
UW-Madison polymer processing (EPD650): lesson 4, part 2.
Просмотров 653 месяца назад
UW-Madison polymer processing (EPD650): lesson 4, part 2.
UW-Madison polymer processing (EPD650): lesson 4, part 1.
Просмотров 413 месяца назад
UW-Madison polymer processing (EPD650): lesson 4, part 1.
UW-Madison polymer processing (EPD650): lesson 3, part 6.
Просмотров 543 месяца назад
UW-Madison polymer processing (EPD650): lesson 3, part 6.
UW-Madison polymer processing (EPD650): lesson 3, part 5.
Просмотров 283 месяца назад
UW-Madison polymer processing (EPD650): lesson 3, part 5.
UW-Madison polymer processing (EPD650): lesson 3, part 4.
Просмотров 303 месяца назад
UW-Madison polymer processing (EPD650): lesson 3, part 4.
UW-Madison polymer processing (EPD650): lesson 3, part 3.
Просмотров 323 месяца назад
UW-Madison polymer processing (EPD650): lesson 3, part 3.
UW-Madison polymer processing (EPD650): lesson 3, part 2.
Просмотров 363 месяца назад
UW-Madison polymer processing (EPD650): lesson 3, part 2.