Energy Engineering - Jun 2014

Mechanical Engineering (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) With a neat sketch, explain the working of spreader striker. State the limitations of it.(10 marks) 1 (b) Draw a line diagram of Pneumatic ash handling system and explain its working. Mention its advantages.(10 marks) 2 (a) What are the advantages and disadvantages of high pressure boilers? With a neat sketch,explain the working of Benson boiler.(10 marks) 2 (b) What is draught? Mention types of draught and explain any one type, with neat sketch.(10 marks) 3 (a) Draw a line diagram to shown the layout of diesel power plant. Describe it in brief.(10 marks) 3 (b) State the applications Of diesel engines in power fluid. List the advantages and disadvantages of diesel power plant.(10 marks) 4 (a) How are the hydro-electric power plant classified? With a neat sketch, explain the pumped storage plant.(10 marks) 4 (b) At a particular site, the mean monthly discharges ( in millions of m³) of river in 12 months from January till December are 30,25,20,0,10,50,80,100,110,65,45 and 30 respectively. Draw the hydrograph and flow duration curve and find mean flow. Also find generation is 85%. Assume each month of 30days.(10 marks) 5 (a) Draw a SChematic diagram of a PWR, label all the parts. State the function of each component.(10 marks) 5 (b) Explain the following: i) Reactor shielding ii) Radio active waste disposal.(10 marks) 6 (a) With a neat sketch, explain the working of an instrument used to measure global radiation of Solar Energy.(10 marks) 7 (a) Explain the principle of working of OTEC, explain with a neat sketch, Rankine cycle OTEC plant.(10 marks) 7 (b) i) What are the factors considered for selecting a suitable site for tidal power plant?
ii)With A neat sketch, explain the working of "Hot dry rock" geothermal Plant.(10 marks) 8 (a) What is meant by anaerobic digestion What are the factors which Affect bio digestion? Explain in brief.(10 marks) 8 (b) How are gasifiers classified? With a schematic diagram, explain the working of down draft gasifier.(10 marks)