Engineering With Python Rotating Header Image

Posts under ‘numerical integration’

‘Graphical’ Evaluation to Calculate the Number of Transfer Units – Solution

Solve the Problem: Calculate the number of transfer units (Nog) Run the program and let’s see what the output shows.  It will show up in your IPython window. The answer we get is NOG = 3.52 transfer units.  Henley and Seader got 3.44 transfer units (obtained graphically) and Rosen and Adams calculated 3.73 units (with […]

‘Graphical’ Evaluation to Calculate the Number of Transfer Units – Programming Approach

Plan your solution: Draw a picture, in this case, list all of your data Remember the fundamentals and apply Draw your material or energy balance envelope (If necessary, not in this case) Remember [Accumulation = In – Out + Source/Sink] Think about what you need to do and the answer you want You need to […]

‘Graphical’ Evaluation to Calculate the Number of Transfer Units – Problem Description

Reference: This is from E.M. Rosen and R. N. Adams, “A Review of Spreadsheet Usage in Chemical Engineering Calculations”, Computers and Chemical Engineering, Vol. 11, No. 6, pp. 723-736, but they took it from Henley and Seader, “Equilibrium Stage Separation Operations in Chemical Engineering”, Wiley, NY 1981 pg. 653.  I don’t have a copy of […]