CE 408: Chemical Engineering Plant Design
Homework #07 Solution
Part A
1.)
2.)
Only mass balances enter this problem. Although UniSim requires conditions of temperature and pressure for each
stream, you can literally pick ANY values, because they do not a
CE 408: Chemical Engineering Plant Design
Homework #02 Solution
Part A
1.)
Part B
2.)
3.)
UniSim gives 26.04 C for the temperature of the mixture leaving the heat exchanger. Requested printouts follow.
Part C
4.) (by Towler & Sinnott)
Solution 2.5
5.) (by
CE 408: Chemical Engineering Plant Design
Homework #05 Solution
1.)
Answers:
Elroy-maticTM UniSim flow sheet:
Conditions of T and P do not affect mass balance calculations and may be set arbitrarily. The actual air flow rate was
set at 1.2 x (minimum air
CE 408: Chemical Engineering Plant Design
Homework #03 Solution
1.)
Graphical (McCabe-Thiele diagram) + analytical (Kremser eq.) solution to Homework #2 problem 1 is essentially right
on. Converged Unisim custom column based on parameters from this by-han
CE 408: Chemical Engineering Plant Design
Homework #05 Solution
1.)
Results based on shortcut distillation column are as follows.
(i) Need 15.128 stages, feed enters on stage 7.114, as shown below.
(ii) D = 146.2 kgmole/h, TD = 82.13 C (by clicking on D s
CE 408: Chemical Engineering Plant Design
Homework #04 Solution
Part A
1.)
Methanol = component 1, water = component 2 throughout.
Use equations and calculation procedure for the UNIFAC method as given in Appendix G of Smith et al. (1996). These
equations
CE 408: Chemical Engineering Plant Design
Homework #10 Solution
Part A
1.)
2.)
Pinch analysis
Heat exchanger network
3.)
(a) Pinch analysis
Interval pinch temperature is 160 C
Minimum hot utility is 700 kW.
Minimum cold utility is 400 kW.
actual pinch tem
CE 408: Chemical Engineering Plant Design
Homework #09 Solution
Part A
1.)
2.)
3)
(Book problem 7-10; solution by Peters, Timmerhaus and West)
Part B
Fixed charges + plant overhead + general expenses = $450,000 + $400,000 + $150,000 = $1,000,000
4.)
Net p
CE 408: Chemical Engineering Plant Design
Homework #01 Solution
1.)
2.)
3.)
Part B
4.)
5.)
6.)
makeup
makeup
Part C
7.) (by Towler & Sinnott)
Solution 2.4