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USN

Non * Gonvrentional Energy Sources o tr

Time: 3 hrs.

|"{ax" Marks:100

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Note: Amswer any FIVE full questions, selecting atleast TWO questions froan each parL

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a. Explain Tar sands and oil shale as energy soLrrces and also rnention their limittrions"

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(10 Marks)

What is the need for altemate energy sources? Explain by considering solar enorgy.

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(05 Marks) (05 Marks)

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b.

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b.

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c.

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Surface azimuth angle (tr0 h'Xarks)

With a neat sketch, explain the working ofpyranometer. Write short notes on spectral distribution of extra terrestrial radiation.

({15

Marks)

([t5 Marks]

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c. Discuss the limitations ofnon - conventional sources of ereergy. i r a. Define the following : i) Latitude ii) Declination angle iii)

a. Calcuiate the monthly aveaage hourly radiation failing on a flat plate collecior facing south (y: 00) with a slope of i50. given the following data Locatiorr : Chennai (130 00'N) ; Monrh : October ; Time : 1100 to 1200 (LAT) ; 1, : 24O8kJlm2 -h i In : 10'13 klln:2 -b.

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b.


c.

c.

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(05 &€arks)

PART - B 5a. Describethe main considerations in r.t..'lilgth. uite for wind generatoffi. (88 Marks) b. Explail with a neat sketch, the working of a photo - voltaic cell. Dravv I - V characteristics. (CI6

Marks)

c. With a neat sketch, explain the horizontal axis wind machine. (06 Marks) a. With a neat sketch and T- S diagram, explain the concept of liquid dorninated total flow

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two media. Write shoft notes on collector efficiency factor and collector heat removal fact,cr

(86 Marks) interface of (08 Marks)

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(04 Ftarks)

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(06 Marks)

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=v (H >'

(10 N{arks)

a. Explain briefly the parameters affecting the performance of flat p,late collecton;. b. Derive the expression for transmissivity based on reflection - refraction at ttLe

.9.) c-x

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AssLlme ground reflectivity to be 0.2.

Deseribe solar pond for solar energy collection and storage" Explain how solar energy can be used for drying, with a neat sketch.

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b.

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c.

6

tr

system of generating geothennal energy. Explain with a neat sketch, the working principle of ctrosed cycle OTEC Sketch and expiain single basin type tidal power plant operation.

plant.

(SB Wfarks)

(s6 Marks)

(sf

Mae"ks)

a. Expiain the process of photosyhthesis. What are the conditir:ns which are ftecessary for it?

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pla::lt). 8a.

(S6

Marks)

(1{}

Marks)

List the factors affecting bio gas generation. (04 Marks) Sketch and explain the working of floating gas holder type biogas plant used in lndia (KVIC

Explain the process of electrolytic production of hydrogen, with a neat sketch. b. Explain briefly the different rnethods of hydrogen storage. Describe how hydrogen can be used as an alternative fuel for motor vehicles. gg&J-&

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Marks) Marks) (06 Marks) (CIE

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