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LearnChemE
Добавлен 12 ноя 2011
Developed by faculty in the department of Chemical and Biological Engineering at the University of Colorado Boulder.
Screencasts on topics in chemical engineering courses including courses taken in other engineering disciplines (Thermodynamics, Fluid Mechanics, Materials Science, Engineering Computing).
Sponsored by NSF, Shell, Chevron, and University of Colorado Engineering Excellence Fund.
See www.learncheme.com for more information.
Some videos link to other faculty with permission.
Screencasts on topics in chemical engineering courses including courses taken in other engineering disciplines (Thermodynamics, Fluid Mechanics, Materials Science, Engineering Computing).
Sponsored by NSF, Shell, Chevron, and University of Colorado Engineering Excellence Fund.
See www.learncheme.com for more information.
Some videos link to other faculty with permission.
Lineweaver Burke plots for Michaelis Menten Enzyme Kinetics
Organized by textbook: learncheme.com/ Shows how the Lineweaver-Burke linear plots for Michaelis-Menten kinetics change for different types of inhibition.
Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering.
Check out our Kinetics playlists: www.youtube.com/@LearnChemE/playlists?view=50&sort=dd&shelf_id=7 Are you using a textbook? Check out our website for screencasts organized by popular textbooks: learncheme.com/screencasts/kinetics-reactor-design/ Check out our website for interactive kinetics simulations: learncheme.com/simulations/kinetics-reactor-design/
Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering.
Check out our Kinetics playlists: www.youtube.com/@LearnChemE/playlists?view=50&sort=dd&shelf_id=7 Are you using a textbook? Check out our website for screencasts organized by popular textbooks: learncheme.com/screencasts/kinetics-reactor-design/ Check out our website for interactive kinetics simulations: learncheme.com/simulations/kinetics-reactor-design/
Просмотров: 276
Видео
Thiele Modulus Particle Size Effects (Interactive)
Просмотров 274День назад
Organized by textbook: learncheme.com/ Estimates the effect of effective rate of reaction when the pellet size of a catalyst particle is increased for operation in a differential reactor. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Kinetics/Reactor Design playlists: ruclips.net/user/LearnChemEplaylists?view=50&flow=list&s...
CSTR Material Balance: Effect of Increasing Volume on Yield (Interactive)
Просмотров 311День назад
Organized by textbook: learncheme.com/ An interactive screencast exploring how a change in reactor size translates to a change in yield. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Kinetics/Reactor Design playlists: ruclips.net/user/LearnChemEplaylists?view=50&flow=list&shelf_id=7
Two Reactions in a Two Phase Reactor
Просмотров 59621 день назад
Organized by textbook: learncheme.com/ Based on outlet compositions, determine the flow rates and the selectivity for a two reaction system. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Reviewed by faculty from other academic institutions. Check out our Material & Energy Balances playlists: ruclips.net/user/LearnChemEplaylists?view=50&...
Systems of Units
Просмотров 284Месяц назад
Organized by textbook: learncheme.com/ Compares SI and American units. Discusses base units and derived units. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Material & Energy Balances playlists: ruclips.net/user/LearnChemEplaylists?view=50&flow=list&shelf_id=8 Check out our website for interactive simulations: www.learnchem...
Temperature Scales
Просмотров 254Месяц назад
Organized by textbook: learncheme.com/ Describes the different temperature scales. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Material and Energy Balances playlists: ruclips.net/user/LearnChemEplaylists?view=50&sort=dd&shelf_id=8 Check out our website for screencasts organized by textbook: www.learncheme.com/screencasts/...
Using Extent of Reaction for Multiple Reactions
Просмотров 302Месяц назад
Organized by textbook: learncheme.com/ Uses the extent of reaction method for two reactions. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Material and Energy Balances playlists: ruclips.net/user/LearnChemEplaylists?view=50&sort=dd&shelf_id=8 Check out our website for screencasts organized by textbook: www.learncheme.com/sc...
Chain-Growth Polymerization
Просмотров 3812 месяца назад
Organized by textbook: learncheme.com/ Applies the steady-state approximation to a chain growth polymerization to determine how the rate of reaction depends on initiator and monomer concentrations. Made by faculty at the University of Colorado Boulder, Department of Chemical and Biological Engineering. Check out our Kinetics playlists: www.youtube.com/@LearnChemE/playlists?view=50&sort=dd&shelf...
Step-Growth Polymerization
Просмотров 2292 месяца назад
Organized by textbook: learncheme.com/ An introduction to step growth polymerization. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Check out our Kinetics playlists: www.youtube.com/@LearnChemE/playlists?view=50&sort=dd&shelf_id=7 Are you using a textbook? Check out our website for screencasts organized by popular textbooks: learncheme....
Solve Set of Nonlinear Equations Using Solver
Просмотров 5202 месяца назад
Organized by textbook: learncheme.com/ Demonstrate how to use Excel Solver to solve three nonlinear equations simultaneously. The Excel spreadsheet is available at learncheme.com/student-resources/excel-files/ . Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Material and Energy Balances playlists: ruclips.net/user/LearnChemE...
Self-Study Module for Enzyme Kinetics
Просмотров 2122 месяца назад
Organized by textbook: learncheme.com/ An interactive self-study module is available at learncheme.com/quiz-yourself/interactive-self-study-modules/enzyme-kinetics/enzyme-kinetics-intro . It explains enzyme kinetics (Michaelis-Menten kinetics) and presents kinetic expressions for different types of inhibition. This module contains screencasts, interactive simulations, ConcepTests, spreadsheets,...
Linde Liquefaction Cycle on P-H and T-S Diagrams
Просмотров 5272 месяца назад
Organized by textbook: learncheme.com/ Shows the Linde liquefaction cycle on pressure-enthalpy and temperature-entropy diagrams. See other screencasts on Linde liquefaction: Description of Linde Liquefaction Cycle (ruclips.net/video/YD5fA45xgro/видео.html), Calculate Liquid N2 Yield in Linde Liquefaction (ruclips.net/video/zjpfHa7d0y0/видео.html), and Calculate Compressor Work Required to Form ...
Energy Balance on Tank with Steam Feed Part 2
Просмотров 3902 месяца назад
Organized by textbook: learncheme.com/ Steam with quality is fed to a tank containing a liquid-vapor mixture at lower pressure. An energy balances determines the amount of liquid fed to the tank to increase the tank pressure to the feed pressure. The numerical calculations are shown in part 2. The steam tables used are at learncheme.com/wp-content/uploads/2023/07/Steam_Tables_1.22.xlsx . The sp...
Conservation of Mass Example 2
Просмотров 3022 месяца назад
Organized by textbook: learncheme.com/ Example problem that calculates volumetric flow rates in a porous cylindrical filter. Made by faculty in the Department of Mechanical Engineering and processed by the Department of Chemical & Biological Engineering at the University of Colorado Boulder. Check out our Fluid Mechanics playlists: ruclips.net/user/LearnChemEplaylists?shelf_id=5&sort=dd&view=50...
Calculate Compressor Work Required to Form 1 kg of Liquid N2 in Linde Liquefaction
Просмотров 5682 месяца назад
Organized by textbook: learncheme.com/ For N2 gas fed at 300 K and 1.0-bar pressure to a Linde liquefaction cycle, the gas enters the J-T expansion at 200 bar and 165 K. How much compressor work is required per kg of liquid N2 formed? The feed gas is compressed in 3 stages with cooling to 300 K after each stage. See other screencasts on Linde liquefaction: Description of Linde Liquefaction Cycl...
Calculate Liquid N2 Yield in Linde Liquefaction
Просмотров 3882 месяца назад
Calculate Liquid N2 Yield in Linde Liquefaction
Description of Linde Liquefaction Cycle
Просмотров 3882 месяца назад
Description of Linde Liquefaction Cycle
How Accurate is the Shortcut Van't Hoff Method for Chemical Equilibrium?
Просмотров 4942 месяца назад
How Accurate is the Shortcut Van't Hoff Method for Chemical Equilibrium?
Calculate NH3 Formation Equilibrium using Gibbs Minimization Spreadsheet
Просмотров 3452 месяца назад
Calculate NH3 Formation Equilibrium using Gibbs Minimization Spreadsheet
Why Does Salt Lower the Temperature for Making Ice Cream?
Просмотров 4972 месяца назад
Why Does Salt Lower the Temperature for Making Ice Cream?
Venturi Meter (Interactive Simulation)
Просмотров 6957 месяцев назад
Venturi Meter (Interactive Simulation)
Heating Vapor Liquid Mixtures in Closed Container
Просмотров 2537 месяцев назад
Heating Vapor Liquid Mixtures in Closed Container
Energy Balances on Tank with Steam Feed - Spreadsheet
Просмотров 5607 месяцев назад
Energy Balances on Tank with Steam Feed - Spreadsheet
Energy Balances on Tank with Steam Feed Part 1
Просмотров 5357 месяцев назад
Energy Balances on Tank with Steam Feed Part 1
CACHE Teaching Resources for Thermodynamics
Просмотров 4198 месяцев назад
CACHE Teaching Resources for Thermodynamics
Calculate Water Fugacity from Steam Tables
Просмотров 1,1 тыс.8 месяцев назад
Calculate Water Fugacity from Steam Tables
How do you find delta h1 and delta h3
can you make for h2o2 beacoming h2o and o2?
what is the question fpr this problem? i mean in words of paragraph?
What's the reason for changing curve concavity by changing fluid? Does it depend on varying K or Cp values by temperature along the heat exchanger?
I DO NOT agree that there is no work in this problem, the volume is increasing 4 fold for christ sakes!! Plus, the piston is being moved for crying out loud!! Total Bull on this one Falconer!!!
Awesome! a very clear explination.
I guess this formula is for UA clean & in case of UA dirty we have to add the fouling factor contributions on the inner & outer of the surface as well. What is the equation for that? Will the fouling factors be assumed from literature or calculated?
Indeed a picture is worth thousand words.
Thanks for the explanation in detail. In case of the reboiler using heat transfer fluid other steam which does not change phase i.e. hot oil, will the heat transfer coefficient of the reboiler be the same as that of the condenser?
Using userform with checkbox in WORD?
Could you explain why in the eq 7 there is + in front of the x1*W, when I found its originally - there
1:02 I have been unable to put/spin the turbun onto my head using this system, any ideas?
So helpful, thanks
Why is there a coefficient of "2" in the mass balance for A? I thought that was already accounted for with the Ca^2
May I know which simulator are you using?
What is x? And what is the purpose of solving x=0.91?
You multiply the H values (BTU per lb) by the total pounds of each stream in your energy balance. Are the units of H in "BTU per lb of total mixture" or "BTU per lb of H2SO4"? If you think about it, the enthalpy of mixing arises from mixing the H2SO4, not the other stuff in solution (which should be arbitrary to the total heat). So accounting for only the masses of H2SO4 from in and out of the mixer in the energy balance makes most sense to me. Is this logic flawed?
We are taking the differential element, then why rdθ why not ∆rdθ?
Great Video. Just to mention, your link doesnt work for the calculator.
Thanks for the note. RUclips stopped allowing annotations, but the link is in the description and now on a card (the information button on the top right).
Also, keep in mind that this video uses the Darcy friction factor (64/Re = f for laminar flow) as opposed to the Fanning friction factor (16/Re = f for laminar flow). Therefore, (7:32) h_L = f(L/D)*v^2/(2*g) is correct for Darcy friction factors, but h_L = 2f(L/D)*v^2/g for fanning friction factors. The friction factors are essentially different by a factor of 4 (therefore f_f * 4 = f_d).
(4:46) The exact numbers are debated, but generally Re<2100 is laminar, 2100<Re<4000 is transitional, and 4000<Re is turbulent. In engineering practice, 10,000 < Re is fully turbulent (this is for internal flow through pipe).
For anyone who was wondering, I think the friction factor used in this video is the Darcy friction factor (64/Re = f) as opposed to the typical Fanning friction factor used by Chemical Engineers (16/Re = f). Both are equally valid, but it should always be specified which is being used. To get from Fanning to Darcy friction factors multiply the fanning friction factor by 4 (f_F * 4 = f_D)
thank you this video is really amazing
Good video mate
12yr later u r a life saver m gonna younk this derivation nd write it in my Master degree exam Ps-studying this 3 hr befor exam u r life saver 😢
I love this guy
thank you so much. I read many and many explaination but I cannot understand until saw yours
Thanks
Great illustration
Excellent video thx
Thanks
Thank you
C is the correct answer
You are a wonderful teacher. Please make videos on thermodynamics. You explain all little steps . Thank you very much .
Well, i did the calculations and got -39.1Kj for one mole total of condensing the mentioned gas mixture of CH3OH and H2O.
You need to put a compressor/limiter on your vocals
How are you getting Z value???
I have never understood the actual meaning of DOF.
Thank you for helping the automation industry, we all have to do our part to help the growth
See the running carnot engine. ruclips.net/video/CpsgxnJgepE/видео.html&pp=ygUUUm90YXJ5IENhcm5vdCBFbmdpbmU%3D
2:49 where is the notation for partial derivative w.r.t. Y
Good stuff
How pressure remains constant in condenser despite the temperature drop from superheat rejection after compressor & sub-cooling heat rejection before expansion valve? Thank u How pressure remains constant in evaporator despite temperature rise from superheat gain before compressor?
Hi ,@3:54, T is indepent of density, which I don't understand , could you explain??
Ok, I see, calculating departure function @constant Temperature. Add that maybe clearer. Just my 2 cents
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I have some questions I want discussion with who have experenice with membrane , if have email ,u can tell me it i will message u
This was very helpful, thanks to you❤️🙏🏾
there is a trick in Question 4 for me. So in this case, the kinematic viscosity of air > water, so the critical point of air is further (according to the formula). But in reality, the fluid with smaller kinematic viscosity, its critical point will be further! This means water will have the further point! Can you help me to explain, thank you so much!
How to graph it using equilateral? Its so confusing…