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Previous Year Exam Questions for Renewable Energy Resources - RER of 2019 - BPUT by Suman Kumar Acharya

  • Renewable Energy Resources - RER
  • 2019
  • PYQ
  • Biju Patnaik University of Technology Rourkela Odisha - BPUT
  • Electrical and Electronics Engineering
  • B.Tech
  • 6 Topic/Links
  • Uploaded 5 months ago
Suman Kumar Acharya
Suman Kumar Acharya
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Registration no: Total Number of Pages: 02 B.TECH PEEL5302 5TH Semester Regular / Back Examination 2015-16 RENEWABLE ENERGY SYSTEMS BRANCH: EE,EEE Time: 3 Hours Max marks: 70 Q.CODE: T607 Answer Question No.1 which is compulsory and any five from the rest. The figures in the right hand margin indicate marks. Q1 Answer the following questions: What do you mean by Energy yield ratio? What do you mean by Toppling cycle and Bottoming cycle ? Define the term graded function. What are the basic levels of solar spectrum? Mention the advantages of vertical axis wind turbine over horizontal axis wind turbine. f) Find out the solidity of a 3 meter radius rotor which has 24 blades of 0.25m wide. g) What are the advantages and disadvantages of floating drum plant? h) Explain pyrolysis process. i) Comment on use of Hydrogen as energy carrier. j) State four advantages of fossil fuel based systems. (2 x 10) Q2 a) Explain briefly Savonius type and Darrieus type wind mill. b) Explain briefly the effect of Tip Speed Ratio on torque and solidity. (5) (5) Q3 a) Derive the expression to obtain maximum torque on Turbine rotor. b) A wind energy generates 2000W at arated speed of 10 m/s at 1 atm pressure and 300c.Calculate power generated and change in output if the wind generator operates at an altitude of 1750m ,temp of 180c,speed of 15 m/s and pressure of 0.6atm. (5) What are the various Biomass conversion technologies presently used? (10) a) b) c) d) e) Q4 Q5 a) What are the environmental impacts of geothermal energy? b) Explain the factors affecting collector system’s efficiency? (5) (5) (5)

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Q6 Q7 Q8 a) Find the angle subtended by beam radiation with the normal to a flat plate collector at 9 a.m. for the day on Dec 8 2015.The collector is in Bhubaneswar , ( 28035,N ; 77012 E )inclined at an angle of 520 with the horizontal facing south. b) Explain the current voltage characteristics of a solar cell.Also define Fill factor. (5) a) Explain the details about Double output system and single output system with suitable sketch. b) Explain advantages, disadvantages and applications of Hybrid Power Systems. (5) Write short notes on any two: a) History of fossil fuels. b) Difference between fixed dome type plant and moveable drum type plant. c) Reactive power compensation. d) Distributed generation and Dispersal generation. (5 x 2) (5) (5)

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