Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem Old 170502 Process Equipment Design Ii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 170502 Date: 19/11/2018
Subject Name: Process Equipment Design - II
Time: 10:30 AM TO 01:30 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) Discuss Various types of heads used in pressure vessel. Also, explain with
equations about Weight and Volume contained within (i) Elliptical head & (ii)
Conical head.
07
(b) Turbine agitators operating in a vessel of 1600 mm diameters is to be designed
with the following data :
Internal design pressure = 5 kgf/cm
2
Agitator diameter = 500 mm
Max. agitator RPM = 200
Liquid in vessel m = 600 cP
Specific gravity = 1.2
Over hang length of shaft = 1200 mm
No. of agitator blade = 6
Elastic limit = 250 N/mm
2
Permissible shear stress in shaft = 55 N/mm
2
Modulus of Elasticity ?E = 19.5 x 10
4
N/mm
2
Power number = 6 for NRe< 4500
= 4.5 for NRe> 4500
Calculate powers required & suggest suitable motor HP.
07
Q.2 (a) Briefly explain the uses of various types of jackets with a neat figure for reaction
vessel.
07
(b) Discuss about different types of agitators and their selection criteria. 07
OR
(b) State and discuss the various types of flanges used in industries.
07
Q.3 (a) What is gasket? Define gasket seating stress and discuss the various types of
gaskets used in industries.
07
(b) Discuss the design steps for the calculation of tube side heat transfer coefficient
and pressure drop.
07
OR
Q.3 With neat sketch explain the design steps for the conical roof with structural
support.
14
Q.4 (a) Define (i) Elasticity (ii) Toughness (iii) Fatigue (iv) Creep (v) Poisson?s ratio
(vi) Moment of inertia (vii) Welding joint efficiency factor.
07
(b) Discuss about different methods for fabrication of equipment in brief. 07
OR
Q.4 A reactor having an inside diameter of 1 meter with a seamless torispherical head
having a crown radius 1000 mm & a knuckle radius of 100 mm. Inside maximum
14
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 170502 Date: 19/11/2018
Subject Name: Process Equipment Design - II
Time: 10:30 AM TO 01:30 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) Discuss Various types of heads used in pressure vessel. Also, explain with
equations about Weight and Volume contained within (i) Elliptical head & (ii)
Conical head.
07
(b) Turbine agitators operating in a vessel of 1600 mm diameters is to be designed
with the following data :
Internal design pressure = 5 kgf/cm
2
Agitator diameter = 500 mm
Max. agitator RPM = 200
Liquid in vessel m = 600 cP
Specific gravity = 1.2
Over hang length of shaft = 1200 mm
No. of agitator blade = 6
Elastic limit = 250 N/mm
2
Permissible shear stress in shaft = 55 N/mm
2
Modulus of Elasticity ?E = 19.5 x 10
4
N/mm
2
Power number = 6 for NRe< 4500
= 4.5 for NRe> 4500
Calculate powers required & suggest suitable motor HP.
07
Q.2 (a) Briefly explain the uses of various types of jackets with a neat figure for reaction
vessel.
07
(b) Discuss about different types of agitators and their selection criteria. 07
OR
(b) State and discuss the various types of flanges used in industries.
07
Q.3 (a) What is gasket? Define gasket seating stress and discuss the various types of
gaskets used in industries.
07
(b) Discuss the design steps for the calculation of tube side heat transfer coefficient
and pressure drop.
07
OR
Q.3 With neat sketch explain the design steps for the conical roof with structural
support.
14
Q.4 (a) Define (i) Elasticity (ii) Toughness (iii) Fatigue (iv) Creep (v) Poisson?s ratio
(vi) Moment of inertia (vii) Welding joint efficiency factor.
07
(b) Discuss about different methods for fabrication of equipment in brief. 07
OR
Q.4 A reactor having an inside diameter of 1 meter with a seamless torispherical head
having a crown radius 1000 mm & a knuckle radius of 100 mm. Inside maximum
14
2
working pressure is 13 kgf/cm
2
(g) working temperature is 70?C. Cylindrical
vessel is covered with plain jacket such that 75% length of cylindrical shell &
bottom torispherical head are not covered with jacket. Inside the jacket cooling
water is circulated. Cooling water is supplied to reactor jacket by centrifugal
pump, having shut off discharge pressure 6 kgf/cm
2
(g). Calculate weight of
bottom torispherical head of reactor. Torispherical head is fabricated from SA-
516 Gr 70 carbon steel plate having maximum allowable stress 612.40 kgf/cm
2
at design temperature.
Data given: Modulus of Elasticity of plate material E = 19500 kgf/mm
2
Poisson?s ratio ? = 0.3
Sp. Gravity of carbon steel = 7.83
Joint Efficiency for seamless torispherical = 1
Q.5 (a) Explain the function of the following parts for the shell and tube heat exchanger. (i)
Baffles (ii) Tie rods (iii) Spacers (iv) Expansion joint (v) Tube side pass partition
(vi) Tube sheet (vii) Support.
07
(b) Explain Normal and Emergency venting for storage vessel.
OR
07
Q.5 (a) Enlist different types of supports. Outline the stepwise procedure for the design
of bracket support.
07
(b) Discuss various pressure relieving devices. Explain rupture disc and safety valve
with a neat sketch.
07
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This post was last modified on 20 February 2020