Energy Engineering SPPU Endsem Question Paper Nov 2025
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 2025
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- VIII
- Paper code
- [6584]-204
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 and Q.7 or Q.8.
- Neat diagrams must be drawn wherever necessary.
- Figures to the right of each question indicate full marks.
- Assume suitable data wherever necessary and mention the same clearly.
- Use of steam tables, Mollier chart and calculator is allowed.
Questions
Q1
- a)[8]
Discuss with neat sketch Plant Layout of High Capacity Diesel Engine Power Plant. Enlist the applications of the same.
- b)[9]
Draw the hydrograph and flow duration curve for the following data: Month Inflow(m 3 /s) Month Inflow(m 3 /s) Jan. 1600 July 3000 Feb. 1200 Aug. 3000 March 800 Sept. 1600 April 800 Oct. 800 May 800 Nov. 800 June 1200 Dec. 1000 Determine: i) Storage capacity for a constant demand of 1100 m 3 /s ii) Number of additional months this storage capacity can be utilized if there is no rain fall.
Also asked:Nov 2024
OR- a)
Q2
- a)[8]
What do you mean by nuclear fission? Discuss in brief. Elaborate functions of following elements of nuclear reactor. i) Coolants ii) Control Rods
Also asked:Nov 2024
- b)[9]
Describe the Sodium Graphite Reactor with following points. i) Labelled Diagram ii) Construction and working iii) Material for different elements of reactor iv) Limitations 2
Also asked:Nov 2024
- a)
Q3
- a)[9]
Discuss concept of thermal efficiency and work ratio of Gas Turbine cycle. How Regeneration technique helps to improve thermal efficiency of Gas Turbine cycle? Elaborate with neat schematic and T-s diagram.
Also asked:Nov 2024
- b)[9]
The air enters the compressor of a gas-turbine power plant at 1 bar, 30 degrees Celsius and 162 tons per hour. The maximum cycle temperature, pressure is 650 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 isentropic efficiency of compressor, first turbine, and second turbine is 80%, 85%, 90% 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) Power output of plant in MW
OR- a)
Q4
Q5
- a)[9]
State the main functions of the relays. What are different types of the same? Discuss working of any one relay with a neat sketch.
- b)[8]
What are different methods thermal energy storage? Explain anyone with simple diagram. Discuss the principles of energy management with storage systems.
OR- a)
Q6
- a)[9]
A hydro-electric plant costs Rs 3000 per kW of installed capacity. The total annual charges consist of 5% as interest; depreciation at 2%, operation and maintenance at 2% and insurance, rent etc. 1.5%. Determine a suitable two-part tariff if the losses in transmission and distribution are 12.5% and diversity of load is 1.25. Assume installed capacity of the station be 100 kW & maximum demand on the station is 80% of the capacity and annual load factor is 40%. What is the overall cost of generation per kWh?
- b)[8]
Discuss the performance and operating characteristics of power plant using: i) Input-output curve ii) Plant Efficiency curve iii) Heat rate curve iv) Incremental heat rate curve 3
- a)
Q7
- a)[9]
Explain following terms in brief related to wind power systems. i) Cut-in Speed ii) Cut-out Speed iii) Rated Speed iv) Betz Limit v) Co-efficient of power vi) Blade Tip ratio
Also asked:May 2023
- b)[9]
Which type of turbines are used in Tidal power plants? Explain single basin and double basin tidal power plants with a neat sketch.
OR- a)
Q8
- a)[9]
Discuss open type MHD based power generation system with following points. i) Labelled Diagram ii) Construction and working iii) Advantages iv) Limitations
- b)[9]
Explain Hydrogen Energy systems with following points. i) Working principle of hydrogen production, ii) Methods of hydrogen storage iii) Applications eeee
- a)