Energy Engineering SPPU Endsem Question Paper Nov 2023
All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.
- Subject code
- 402049
- Pattern
- 2019 pattern
- Exam
- Endsem
- Session
- Nov 2023
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- VIII
- Paper code
- [6181]-245
Printed for: B.E. (Mechanical)
Instructions to the candidates
- Attempt Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, Q.7 or Q.8.
- Neat diagrams must be drawn wherever necessary.
- Figures to the right indicate full marks.
- Assume suitable data, if necessary.
- Use of steam tables, Mollier chart and calculator is allowed.
Questions
Q1
- a)[6]
What do you mean by Flow Duration Curve? Discuss main functions of the same.
- b)[6]
Describe with simple diagram general layout of diesel power plant indicating all systems used.
Also asked:May 2024
- c)[6]
Discuss working of Boiling Water Reactor with its diagram and limitations.
OR- a)
Q2
- a)[6]
What do you mean by Hydrograph? Discuss main functions of the same.
- b)[6]
Describe with simple diagram Plant Layout of Low Capacity Diesel Engine Power Plant.
- c)[6]
Discuss working of Pressurized Water Reactor with its diagram and advantages.
- a)
Q3
- a)[9]
The air enters the compressor of gas-turbine power plant at 1 bar, 27 degrees Celsius. The pressure ratio is 6:1. The air after compression is passed through heat exchanger with effectiveness 0.65. Then air is passed to combustion chamber and heated to 870 degrees Celsius Then gases are expanded up to 1 bar in turbine then to heat exchanger and finally to the exhaust. The isentropic efficiency of compressor, gas turbine is 80%, 85% respectively. Take adiabatic index for air gas as 1.4. Take specific heat for air, gas as 1 KJ/Kg-K. Neglect mass flow rate of fuel and air mass as 5 kg/sec. Draw cycle arrangement and T-s diagram and determine. 2 i) The thermal efficiency of cycle ii) Heat carried away by exhaust gases on per minute basis.
- b)[8]
Define Tri-generation. Describe Tri-generation cycle with block diagram, advantages and applications.
Also asked:May 2024
OR- a)
Q4
- a)[9]
The air enters the compressor of 5 MW capacity gas-turbine power plant at 1 bar, 30 degrees Celsius. The maximum cycle temperature, pressure is 550 degrees Celsius, 5 bar respectively. The two stage expansion with reheating pressure of 2.24 bar is used in the plant. In the reheater gas is heated up to maximum cycle temperature. The gases are expanded up to 1 bar in second turbine. The isentropic efficiency of compressor, both turbines is 80%, 85% respectively. Take adiabatic index for air gas as 1.4,1.33 respectively. Take specific heat for air, gas as 1 KJ/Kg-K, 1.15 KJ/Kg-K respectively. Neglect mass flow rate of fuel. Draw cycle arrangement and T-s diagram and determine. i) The thermal efficiency of cycle ii) Mass flow rate of air
- b)[8]
How Kalina (Cheng) Cycle works? Describe with cycle arrangement, advantages and disadvantages.
Also asked:May 2024
- a)
Q5
- a)[6]
A power generation station with maximum demand as 30 MW having following annual data. Capacity factor = 0.4, Load factor = 0.5 and use factor = 0.5. Determine i) Annual energy produced ii) Reserve capacity over and above peak load iii) Number of hours during which plant is not working
- b)[6]
State main functions of circuit breaker. Describe working of anyone circuit breaker with diagram.
- c)[5]
OR- a)
Q6
- a)[6]
This part has equations that don’t show as text. Open the PDF to read it.
- b)[6]
List out various methods of thermal energy storage. Describe anyone method with simple diagram.
- c)[5]
Why relays are used in power stations? Discuss working of any one relay with diagram.
Also asked:May 2024
- a)
Q7
- a)[6]
Elaborate dolphin type wave machines with diagram and advantages.
Also asked:May 2024
- b)[6]
Discuss the working of Claude’s Ocean Thermal Energy system with simple diagram and advantages.
- c)[6]
Discuss the working of superheated steam geothermal energy system with diagram and advantages.
OR- a)
Q8