Sathyabama University 2008 B.Tech Chemical Engineering Process Equipment Design & Drawing - Question Paper

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

 

Course & Branch: B. Tech Chemical (Part Time)

Title of the paper: Process Equipment Design & Drawing

Semester: III Max. Marks: 80

Sub.Code: 619PT304 (2007 JAN) Time: 3 Hours

 

PART A (10 x 2 = 20)

Answer All the Questions

 

1. What is Elastic reaction?

2. Classify Reaction Vessels?

 

3. Define steam economy, steam Capacity?

 

4. What is the difference between Heater and cooler?

 

5. What are the Advantages of square pitch over triangular pitch?

 

6. What is filtering medium?

 

7. What are different types of adsorption?

 

8. What are all the factors to be considered while designing plates and trays?

 

9. Uses of Reboiler in distillation column?

 

10. Explain cyclone separators, thickner.

 

PART B (5 x 12 = 60)

Answer All the Questions

 

11. What are the general design and drawing consideration of vessel subjected to External pressure?

(or)

12. Explain in detail about the storage of fluid, with neat Sketch.

 

13. Design a cooler for the data mentioned below and find out number of tubes.

Data

Quantity	Shell side (input/output)	Tube side
Temperature (c)	93.35/55.92	30/50
Density(kg/m3)	927.16	1000
Viscosity(cp)	9.026/28.9	831.5x10-6
Specific heat (kcal/kgc)	0.45	0.998
Thermal conductivity (kcal/hrm2c)	0.101/0.106	527 x 10-3
Enthalpy	5643.84/4476.73	-

 

Length of tube = 6m

Total flow rate in the shell side = 68593.37kg/hr

(or)

14. A single effect, vertical short tube evaporator is used to
concentrate syrup from 10% to 40%. Solids at the rate of 2000kg of feed per hour. The feed enters at 30c and a reduced pressure of 0.33kg/cm² is maintained in the vapour space. At this pressure the liquor boils at 75c/ Saturated steam at 115c is supplied to steam chest. No sub cooling of the condensate occurs. Calculate steam requirement and the no of tubes (0.0254m, 16 BWG). If the height of the calandria is 1.5m, the following data are given:

Spacific heat of liquor = 0.946kcal/kgc. Latent heat of steam at 0.33kg/cm² = 556.5k cal/kg. Boiling point of water at this pressure = 345k. The overall heat transfer coefficient=2150k cal/hm²c.

 

15. A mixture of benzene and toluene containing 60 mole % benzene is to be separated to yield a product of 95% mole benzene and bottom product of 10 mole % benzene. Feed enters a column at its bubble point. It is proposed to operate the column with reflux ratio 2.5,

Take min. feed rate at 75% of the maximum.

The max. Feed rate is 10000 kg/hr.

Find out height of column, column diameter.

(or)

16. General design and drawing considerations of distillation columns of valve tray, sieve tray.

 

17. What are the design and drawing consideration of packed bed absorption column?

 

18. What are the different types of adsorption, Explain with neat
sketch.

(or)

19. Explain in detail about continuous type filtration equipment?

 

20. What are the fundamental principle, equation, and general
design of centrifuges?