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DEM 203(THERMODYNAMICS 1)

SOLAR THERMAL ENERGY COLLECTOR HEAT

EXCHANGER

DEADLINE :1/03/2011

NAME :V.KATHIRAVAN (092004471)

TAN SHI YO (092004921)

LEE CHAN SIANG (092004504)

SURESH(092004901)

SUBMITTED TO : Mr. ALVIN HAM KAI WEI

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INTRODUCTION

A solar thermal collector is a solar collectordesigned to collect heatby absorbingsunlight. The term is applied to solar hot water panels, but may also be used to

denote more complex installations such as solar parabolic, solar trough and solartowers or simpler installations such as solar air heat. The more complex collectors

are generally used in solar power plants where solar heat is used to generate

electricityby heating water to produce steam which drives a turbine connected toan electrical generator.

The simpler collectors are typically used for supplemental space heating inresidential and commercial buildings. A collector is a device for converting the

energy in solar radiation into a more usable or storable form. The energy insunlight is in the form ofelectromagnetic radiation from the infrared (long) to theultraviolet (short) wavelengths.

The solar energy striking the Earth's surface depends on weather conditions, aswell as location and orientation of the surface, but overall, it averages about 1,000

watts per square meter under clear skies with the surface directly perpendicular tothe sun's rays.

http://en.wikipedia.org/wiki/Solar_collectorhttp://en.wikipedia.org/wiki/Heathttp://en.wikipedia.org/wiki/Absorption_(optics)http://en.wikipedia.org/wiki/Sunlighthttp://en.wikipedia.org/wiki/Solar_hot_water_panelhttp://en.wikipedia.org/wiki/Solar_air_heathttp://en.wikipedia.org/wiki/Solar_power_planthttp://en.wikipedia.org/wiki/Electricityhttp://en.wikipedia.org/wiki/Turbinehttp://en.wikipedia.org/wiki/Electrical_generatorhttp://en.wikipedia.org/wiki/Energyhttp://en.wikipedia.org/wiki/Electromagnetic_radiationhttp://en.wikipedia.org/wiki/Infraredhttp://en.wikipedia.org/wiki/Ultraviolethttp://en.wikipedia.org/wiki/Ultraviolethttp://en.wikipedia.org/wiki/Infraredhttp://en.wikipedia.org/wiki/Electromagnetic_radiationhttp://en.wikipedia.org/wiki/Energyhttp://en.wikipedia.org/wiki/Electrical_generatorhttp://en.wikipedia.org/wiki/Turbinehttp://en.wikipedia.org/wiki/Electricityhttp://en.wikipedia.org/wiki/Solar_power_planthttp://en.wikipedia.org/wiki/Solar_air_heathttp://en.wikipedia.org/wiki/Solar_hot_water_panelhttp://en.wikipedia.org/wiki/Sunlighthttp://en.wikipedia.org/wiki/Absorption_(optics)http://en.wikipedia.org/wiki/Heathttp://en.wikipedia.org/wiki/Solar_collector

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HEAT MOVEMENT

CONDUCTION

Its a transfer of heat through a solid material or from one material to another

where their surfaces are touching.Heat is conducted more easily through a solid

material than through layers of material even when the layers are held together

tightly.

THE MATERIALS WE USE

MATERIALS QUANTITY

Rubber Tube 2m

Copper Tube 3ft

Aluminium Foil 1 roller

Plastic Container 2 unit

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PROCEDURE

1) Firstly,make a hole at the bottom of the container.2) Connect the rubber tube at the containers hole at the bottom for the water to

flow through.

3) Fix in tightly the rubber tube to the copper tube.4) Then,wrap entirely the copper tube with the aluminium foil.5) Put a second container at the end of the copper tube to retain the result.

EXPERIMENTAL TEST

>First at all , place the energy collector under the sunlight.

>Then , have to wait approximately 30 minutes until the copper tube gets

hot.

>The function of the aluminium foil is to collect or absorb heat from the

sunlight and make the cooper tube hotter.

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>After that, have to pour water into the container,than the water flow

through hot copper tube into the second container.

>Finally,have to measure the temperature at the second container to know

the incresment of the temperature .

RESULT OF THE EXPERIMENT

Time Taken (min) Temperature ( C )

0 24.0

15 25.2

30 27.0

45 30.5

60 33.6

75 34.0

90 34.0

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CONCLUSION

Solarthermal energy is a form of energy in which the sun is used to produce heat

which can be utilized in a variety of ways. People have been using solar thermal

energy for thousands of years for a variety of tasks, and modern technology has

considerably expanded the applications for the sun's thermal energy. This form of

energy can also be used for cooking, sometimes in very creative ways. Solar ovens

use solar thermal energy, and solar thermal energy can be used to heat water to

generate steam for cooking.More than that,heat from the sun can be used in

electricity generation. This requires some extensive support technology, but one

advantage is that since heat can be stored, a solar thermal energy plant can operate

24 hours a day to meet power needs. These facilities are typically located in areas

which get a lot of sun, so that the maximum amount of solar thermal energy can be

harnessed.

http://www.wisegeek.com/what-is-thermal-energy.htmhttp://www.wisegeek.com/what-is-thermal-energy.htm