Energy Engineering - Dec 2016

Mechanical Engg. (Semester 5)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1(a) Explain Cyclone burner, along with proper sketch.(6 marks) 1(b) Explain various coal handling techniques.(8 marks) 1(c) Prepare a neat sketch for hydraulic ash handling systm and explain.(6 marks) 2(a) Give a neat sketch for Benson boiler and write the operating principle.(8 marks) 2(b) Explain briefly about i) Economiser ii) Air preheater.(6 marks) 2(c) Derive an expression for chimney height.(6 marks) 3(a) Write the advantages and disadvantages of diesel power plant.(6 marks) 3(b) Explain with neat sketch, Individual pump injection system and common rail injection system in diesel power plant.(8 marks) 3(c) What is menat by thermostat cooling in diesel power plants?(6 marks) 4(a) Give a brief note on i) Hydrograph ii) Flow duration curve.(6 marks) 4(b) Draw a general layout of hydro-electric power plant and explain the functions of each part.(8 marks) 4(c) Explain briefly about: i) Water hammer effect ii) Surge tank.(6 marks) 5(a) Explain with neat sketch, the layout of nuclear powerplant.(8 marks) 5(b) State the functions of moderator, control rods and reflector.(6 marks) 5(c) Explain with neat sketch, the working of pressurized water reactor.(6 marks) 6(a) Explain with proper sketch, about solar P-V conversion system.(6 marks) 6(b) Give a brief note on horiziontal and vertical axis wind mill system.(6 marks) 6(c) The incident beam of sunlight has a power density of 1k/W/m² in the direction of beam. The angle of inclination is 60°. Calculate the power collected by the surface, having a total flat area of 120m².(8 marks) 7(a) Give a short note on tidal powerplant.(6 marks) 7(b) Explain briefly about OTEC plants.(8 marks) 7(c) What is meant by Geothermal energy coversion?(6 marks) 8(a) What are the stages in anacrobic digestion process? Explain.(6 marks) 8(b) With neat sketch, explain the working of floating type digester.(8 marks) 8(c) What are the factors affecting the generation of biogas in a digester?(6 marks)