Download GTU BE/B.Tech 2019 Summer 8th Sem New 2180508 Solid Fluid Operations Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2180508 Solid Fluid Operations Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2180508 Date:13/05/2019

Subject Name:SoliD-Fluid Operations

Time:10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Define agitation and mixing. State various purposes of agitation. 03
(b) What are conveyors? Describe the transportation of material through belt
conveyor.
04
(c) Classify solid fluid operations. Explain various solid fluid operations with
suitable example.
07
Q.2 (a) Define fluidization and explain minimum fluidization velocity. 03
(b) Describe the term crystallization. State various applications of Crystallization. 04
(c) Explain construction and working of plate and frame filter press with its
advantages and limitations.
07
OR
(c) Explain in detail: Slurry bed reactor 07
Q.3 (a) Write in brief about types of nucleation in crystallization. 03
(b) Enlist various types of conveyors. Explain screw conveyor for transportation
of pasty materials.
04
(c) Describe flow of fluid through porous solid beds and derive Ergun equation. 07
OR
Q.3 (a) Explain the phenomenon of crystals growth in brief. 03
(b) A disc turbine with six flat blades is installed centrally in a vertical baffled tank
2.0 m in diameter. The turbine is 0.67 m in diameter and is positioned 0.67 m
above the bottom of the tank. The turbine blades are 134 mm wide. The tank is
filled to a depth of 2.0 m with an aqueous solution of 50 percent NaOH at 65?C,
which has a viscosity of 12 cP and a density of 1500 kg/m
3
. The turbine impeller
turns at 90 r/min. What power will be required? If NRe < 10,000 take Np=65 and
If NRe > 10,000 take Np= 5.8
04
(c) Explain in detail about conditions for fluidization. 07
Q.4 (a) Explain in brief: Static Mixers 03
(b) Write short note on ?Slurry transport?. 04
(c) Explain in detail: Moving bed reactor 07
OR
Q.4 (a) Explain in brief: Heating and cooling mixers 03
(b) Write short note on pneumatic conveying system. 04
(c) Explain in detail: Fixed bed reactor 07
Q.5 (a) List out various industrial applications of Fluidization. 03
(b) Define Drying. Classify various dryers used in drying process. 04
(c) Enlist various types of centrifuge. Explain in detail suspended batch centrifuge
with neat sketch.
07
OR

Q.5 (a) Describe particulate fluidization in brief. 03
(b) Explain the term Leaching. State various applications of Leaching. 04
(c) Define sorting classifiers. Explain ?sink and float? method for sorting classifiers. 07

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