8/10/2019 Aes q Bank Sem Vi 2014

1/2

L.J. Institute of Engineering & Technology Semester: VI (2014)

Subject Name: ALTERNATE ENER! S"#R$ES

Subject $o%e: '()*

+aculty: S,A, -A#NIS,

ALTERNATE ENERGY SOURCES 2014Page

8/10/2019 Aes q Bank Sem Vi 2014

2/2

L.J. Institute of Engineering & Technology Semester: VI (2014)

ALTERNATE ENERGY SOURCES 2014Page

Sr

No

$,A/TER N" 0 : INTR"1#$TI"N -ar2s

Define alternate energy sources. Explain in brief about these energy sources with special

reference to Indian scenario.3Jan )45 6LJIET7

)8

Write short notes on classification of energy resources. Also explain which type of Alternate

Energy Source is the best suitable for rural and agricultural applications and why? 3-ay )5

6LJIET7

)8

4Which are the non- conventional energy sources? State the erits and deerits of Solar

energy.3No9 )5 6LJIET7

)8

* What are the conventional and non-conventional energy sources? Describe briefly.3-ay )5

6LJIET7

)8

$,A/TER N" 0 : S"LAR ENER!

Define the following ters with necessary s!etch.

". Solar declination angle #.$our angle %.solar &enith angle '.Solar incident angle.31ec

)45 6LJIET7

)8

Define Sun rise hour angle( also calculate the day length in Ahedabad )#%* +, on ## nd

Deceber and ##nd arch.31ec )45 6LJIET7)8

4 ist different types of concentrating collector. Explain any one with figure.31ec )45

6LJIET7)8

* Discuss the wor!ing of copound parabolic concentrator )/0/, and state its advantages and

disadvantages.31ec )45 6LJIET7 )8

Explain briefly construction and wor!ing of sun shine recorder.31ec )45 6LJIET7 )8

' Explain construction and wor!ing 0yrhelioeter with diagra.3Jan )45 6LJIET7 )8

8 Write a brief note on effect of various paraeters on perforance of flat plate collectors.3Jan

)4; -ay )5 6LJIET7)8

< Define following ters with necessary figure.

)", Sunrise1Sunset hour angle )#, Solar tilt angle

)%, Solar altitude angle )', Declination Angle

)2, Day length )3, Surface a4iuth angle3Jan )45 6LJIET7

)8

( Describe advantages and drawbac!s of Solar Energy 5tili4ation.3June )45 6LJIET7 )8

) Explain the principle of wor!ing of a 0yrhelioeter with a neat s!etch.3June )45 6LJIET7 )8 Describe the wor!ing of a flat plate collector using air as wor!ing fluid with the help of a neat

s!etch.3June )45 6LJIET7)8

Define the following ters

&enith angle )ii, /oncentration ratio )iii, Instantaneous collector efficiency3June )45

6LJIET7

)8

4 Explain the different heat losses in 6lat plate /ollector.3June )45 6LJIET7 )8

* Explain the concept of 7Solar /onstant8 and 7Air ass8? What is the variation of solar

/onstant with tie and what is the reason for this variation? 3-ay )5 6LJIET7)8

Derive a general e9uation for flux incident on a solar collector in ters of hourly bea and

diffuse radiations( tilt factors( angle of incidence( &enith angle and absorptivity transissivity

products for bea and diffuse radiations.3-ay )5 6LJIET7

)8

' /alculate onthly average of Daily :lobal Solar ;adiation on a $ori4ontal Surface located in

Ahedabad :u+( %*."=>E, for the onth of April. Average Solar day

hours are "= hrs. Angstro>s constants for Ahedabad( a @ =.#( b @ =.' 3-ay )5

6LJIET7

)8

8 Describe with neat diagra the construction and wor!ing of solar pond. 3Jan )45 3No9

)5 6LJIET7)8

< What are solar ponds? Discuss the wor!ing of a solar pond with help of a neat s!etch. 3-ay

)5 6LJIET7)8

( /alculate the solar insolation on the top of the atosphere on #% arch and "B Cune( #="".

a!e Solar constant @ "%2% W1

#

3No9 )5 6LJIET7

)8

) Which instruents are used for Solar radiation easureents? Explain construction and

wor!ing of 0yranoeter.3No9 )5 6LJIET7)8

:ive classification of Solar concentrating collectors. Explain /opound parabolic

concentrator briefly.3No9 )5 6LJIET7)8

/alculate the nuber of daylight hours in Delhi on ## Deceber "BB2.

a!e atitude @ #*%2> +.3No9 )5 6LJIET7)

4 Write nae of solar radiation easurin instruents. Ex lain sun shine recorder with fi ure.