Toprated ScreenCasts
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01.5 Real Fluids and Tabulated Properties  Click here.  100  2 
Double interpolation (uakron, 8min) is exactly what it sounds like: to find a steam property when neither the pressure nor temperature are among the tabulated values, you need to interpolate twice. We interpolate first on pressure, then on temperature. It is a bit tedious, but straightforward. Comprehension Questions: 
10.08  Concepts for Generalized Phase Equilibria  Click here.  100  1 
Concepts for General Phase Equilibria (12:33) (msu.edu) The calculus used in Chapter 6 needs to be generalized to add composition dependence. Also, we introduce partial molar properties and composition derivatives that are not partial molar properties. We introduce chemical potential These concepts are used to show that the chemical potentials and component fugacities are used as criteria for phase equilibria. 
14.10 Solidliquid Equilibria  Click here.  100  2 
Solidliquid Equilibria using Excel (7:38min, msu) The strategy for solving SLE is discussed and an example generating a couple points from Figure 14.12 of the text are performed. Most of the concepts are not unique to UNIFAC or Excel. This screeencast shows how to use the solver tool to find solubility at at given temperature. 
12.04  The FloryHuggins Model  Click here.  100  2 
The Flory and FloryHuggins Models (7:05) (msu.edu) Flory recognized the importance of molecular size on entropy, and the Flory equation is an important building block for many equations in Chapter 13. Flory introduced the importance of free volume. The FloryHuggins model combines the Flory equation with the ScatchardHildebrand model using the degree of polymerization and the parameter χ. The FloryHuggins model is used widely in the polymer industry. Comprehension Questions: Assume δ_{P}=δ_{S} for polystyrene, where δ_{S} is the solubility parameter for styrene. Also, polystyrene typically has a molecular weight of about 15,000. Room temperature is 25°C. 1. Estimate the infinite dilution activity coefficient of styrene in polystyrene. 
14.09  Numerical procedures for binary, ternary LLE  Click here.  100  1 
LLE Calculations: UNIFAC from Actcoeff.xlsx Calculation of LLE. (5 min) (LearnChemE.com)

17.07  Temperature Dependence of Ka  Click here.  100  2 
Example 17.4 and 17.5 solved using Kcalc.xlsx (6:01) (msu.edu) The full form of the temperature dependence of Ka is implemented in Kcalc.xlsx and Kcalc.m. This screecast covers the use of Kcalc.xlsx for Example 17.4 and Example 17.5 of the textbook. Comprehension Questions: 1. CO and H2 are fed in a 2:1 ratio to a reactor at 500K and 20 bars with a catalyst that favors only CH3OH as its product. Calculate ΔG_{R}º and ΔH_{R}º. 
10.02  VaporLiquid Equilibrium (VLE) Calculations  Click here.  100  2 
VLE Routines  General Strategies (4:49) (msu.edu) Deciding which routine to use is more challenging than it appears. Also understanding the strategy used to solve the problems is extremely helpful in being able to develop the equations to solve instead of trying to memorize them. 
08.07  Implementation of Departure Functions  Click here.  100  1 
Derive the internal energy departure function (uakron.edu, 20min) for the following EOS: Comprehension: Given (AA^{ig})_{TV}/RT = 2ln(1η_{P})  16.49η_{P}βε/[1βε(12η_{P})/(1+2η_{P})^2 ] 1. Derive the internal energy departure function. 2. Derive the expression for the compressibility factor. 3. Solve the EOS for Zc. 
04.09 Turbine calculations  Click here.  100  2 
Entropy Balances: Solving for Turbine Efficiency Sample Calculation. (uakron.edu, 10min) Steam turbines are very common in power generation cycles. Knowing how to compute the actual work, reversible work, and compare them is an elementary part of any engineering thermodynamics course. Comprehension Questions: 1. An adiabatic turbine is supplied with steam at 2.0 MPa and 600°C and it exhausts at 98% quality and 24°C. (a) Compute the work output per kg of steam.(b) Compute the efficiency of the turbine. 2. A Rankine cycle operates on steam exiting the boiler at 7 MPa and 550°C and expanding to 60°C and 98% quality. Compute the efficiency of the turbine. 
14.09  Numerical procedures for binary, ternary LLE  Click here.  100  1 
LLE flash using Matlab/Chap14/LLEflash.m (5:54) (msu.edu) An overview of the LLE flash routine in Matlab, including an overview of the program logic and then an example of how to run the program. See also  Supplement on Iteration of LLE with Excel and Matlab. 