RTU 2015 Question Paper Semester VIII Mechanical Engineering Renewable Energy Technology

Total No of Pages: I
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o B. Tech. VIII Sem. (Main / Back) Exam., April, 201,5
stII Mechanical Engineering
€ 8ME1 Renewable Energy Technology

Time: 3 Hours Maximum Marks: 80
Min. Passing Marks: 24
Instructions to Candidates :
Anempt any ft,ve questi.ons, selecting one question from each unit. All questions
carry.equol marks. Schematic diagrams must be shown wherever necessary. Any
datayoufeel missing suitably be assumed and stated clearly.
Units of quantities used/calculated must be stated clear$.
Use of following supporting material is permitted during emmination.
(Mentioned in.form No. 205)
1. NIL 2.NIL

Q.l (a) Classify Renewable and Non-Renewable sources of energy and discuss why
Renewable Energy Technologies are gaining momentum in the current Energy
scenano. t8l

O) Explain the construction and working of a Solar Flat Plate collector with neat
diagrams. t8l

OR

Q.1 (a) Explain the working principle of a Solar Still. Discuss its various types and its
major application areas. t81

(b) Discuss in brief the various photovoltaic applications. t81

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UNIT - II
Q.2 Classify Wind Energy Conversion Systems (WECS) with its characteristics and
applications. t16l

OR

Q.2 (a) What do you understand by Betzlimit? Derive the expression for the same. itl

(b) Desciibe the various factors influencing wind. How is wind shear and turbulence
related to the selection of WECS? t8l

UNIT.III
Q.3 (a) What do you understand by Ocean Energy? What are its resources and routes? [8]

(b) What is the principle of energy oonversion through OTEC system? Explain open
cycle OTEC system. t8l

OR

Q.3 (a) What do you mean by Ocean Wave Energy Conversion. Describe one of the
methods of power generation through ocean wave. t8l

(b) Explain with neat diagram the closed cycle OTEC system t8I

UNIT - IV
Q.4 Write short notes on: [4x4=16)
(a) Nuclear fission and fusion
(b) MHD
(c) Geothermal Energy
(d) Biomass

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OR

Q.4 What are the various considerations for site selection of a Geothermal Power Plant?
Explain the working of a geothermal power plant with neat sketches. tl6l

W.
Q.5 (a) Describe the basic design of a fuel cell. What are the electrochemical principles
and thermodynamics involved in the working of fuel cell? t8l

(b) List the various types of fuel cells and describe any one of them. t8l

OR

Q.5 (a) What are the various hydrogen production methods? Explain one of these
methods. lr2l

O) Discuss the challenges involved in the production of hydrogen. t4l

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