1. TEAM X Steady State Data Analysis Distillation Column
By: Dr. Jim Henry
7 Oct 2003

2. Objectives
Energy Equation Analysis
Steady-state analysis

3. Distillation Column

4. Distillation Column
Heat IN

5. Distillation Column
Heat Loss, reboiler
Heat IN

6. Distillation Column Vacuum insulated, NO Heat loss Heat Loss, reboiler
Heat IN

7. Distillation Column Heat Loss, feed area Vacuum insulated,
NO Heat loss
Heat Loss, reboiler
Heat IN

8. Distillation Column Vacuum insulated, NO Heat loss
Heat Loss, feed area
Vacuum
insulated,
NO Heat loss
Heat Loss, reboiler
Heat IN

9. Distillation Column Heat Loss, reflux area Vacuum insulated,
NO Heat loss
Heat Loss, feed area
Vacuum
insulated,
NO Heat loss
Heat Loss, reboiler
Heat IN

10. Distillation Column Heat out, condenser Heat Loss, reflux area Vacuum
insulated,
NO Heat loss
Heat Loss, feed area
Vacuum
insulated,
NO Heat loss
Heat Loss, reboiler
Heat IN

11. Some Data

12. Energy Equation Data
Qin is measured
Now we can determine Qloss

13. Some Data Reboiler, at 75oC has heat loss Trays 12 & higher,
insulated and cool,
have no heat loss.
So Qin = Qloss
200 W = U A DT

14. Heat Loss A = 2* p *r*l + 2* p *r2
Surface Area (A) = 0.44 m2 found by measuring Reboiler
Measure Tboiler and Troom (23 oC)
Determine U… the heat transfer coefficient

15. So Qin = Qloss 200 W = U 0.44 50 = U 22 U = 400/22 = 18 W/m2 oC
Some Calcs
So Qin = Qloss
200 W = U
= U 22
U = 400/22 = 18 W/m2 oC

16. Some Data

17. Some Data Reboiler, at 75oC has heat loss Trays 12 & higher,
insulated and cool,
have no heat loss.
So same as before

18. Some Data
Zoom In

19. Some Data

20. Some Data Reboiler, at 85oC has heat loss Feed area, at 68oC
Trays higher,
insulated,
have no heat loss.
So Qin = Qloss
400 W = U AB DTB
+ U AF DTF

21. Some Calcs
So Qin = Qloss
400 W = U
+ U .1 45
= U 31
U = 400/31 = 13 W/m2 oC