1. TEAM II Reboiler Energy Performance By: Cortez Rankin & D. Caruthers 11/4/03 ENCH/ENEV 435

2. Objectives To provide Transient Analysis of the Reboiler Energy

3. Distillation Column

4. Q in =2750

5. Distillation Column Q in =2750 Q loss

6. Reboiler M cw = 6.5 kg T reboiler T Room Q in = 2750 W Q loss

7. Reboiler Data dT( o C)/dt(min) = 3.8

8. is calculated data wise and graphically C p is looked up in a handbook M cw and Q in are measured Now we can determine Q loss M cw = 6.5 kg Q in = 2750 W Q loss

9. Reboiler Data Q in = 2750 W

10. Reboiler Data

11. Heat Loss of Reboiler A = 2*π*r*l + 2*π*r 2 Surface Area (A) = 0.44 m 2 found by measuring Reboiler Measure T reboiler and T room (23 o C) Determine U… the heat transfer coefficient

12. T reboiler T Room Q in Q loss Area = 0.44 m 2

13. U mean is 51 W/m 2 - o C Standard deviation with a confidence level of 95% is ± 8 W/m 2 - o C T room = 23 o C A = 0.44 m 2

14. Questions?