Download GTU B.Tech 2020 Winter 7th Sem 2173515 Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2173515 Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2173515 Date:30/01/2021
Subject Name:Design Of Air Pollution Control System And Air Quality
Modeling
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1 (a) Write a note on Gravity settler.
03

(b) Write main design equations of Electrostatic Precipitator and explain their
04
significance

(c) Derive performance equation (Design Equation) for gravity settling
07
chamber.


Q.2 (a) Explain multiple tray settlers.
03

(b) Write a note on Scrubber.
04

(c) Explain various natural mechanisms for removal of gaseous component and
07
particulate matter.




Q.3 (a) Explain Activated Carbon technique for SOx removal.
03

(b) How many type of air cyclones are there? Explain briefly each type.
04

(c) Write a note on Seaboard process, Girbotol process, Claus process for
07
sulphur removal during combustion.




Q.4 (a) Explain Jet injects Scrubber with neat diagram
03

(b) Explain hydrodesulphurization of coal.
04

(c) What do you understand by Dispersion Modeling? Explain in detail
07
Q.5 (a) Define: ESP, stability classes, air quality model
03

(b) What are Atkin particles? Explain.
04

(c) Write short notes: (i) ISCST3 (ii) CALINE4
07



Q.6 (a) Explain Plume rise, migration velocity, air pollution.
03

(b) Explain Extraction of Sulphur from fuel. (Sweetening Process and
04
hydrodesulphurization of Coal).

(c) Explain Gaussian Plume model in detail with its limitation
07

Q.7 (a) What do you mean by Receptor Modeling?
03

(b) Draw a figure with nomenclature and explain mechanism and working of
04
cyclone separator.

(c) Discuss "Control of oxides of Nitrogen by Modification of Operating
07
Conditions and Modification of Design Condition".



Q.8 (a) Enlist control technologies for Hydrocarbons.
03
(b) Write short note on AERMOD
04
(c) Explain "DCDA (Double Contact Double Absorption) Process" for
07
production of sulphuric acid from sulphur dioxide.

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