renewable energy12

8/3/2019 Renewable Energy12

1/22

RENEWABLE ENERGY

RESOURCES: ROLE OF AN

INDIVIDUAL


2/22


3/22

TYPES OF RENEWABLE

ENERGY

SOLAR ENERGY

BIOMASS

BIOFUEL

GEOTHERMAL ENERGY

WIND ENERGY

HYDROELECTRICITY

TIDAL ENERGY

WAVE ENEGY


4/22

BIOFUEL

Biofuel is a type of fuel whose energy is derivedfrom biological carbon fixation.

BIOALCOHOLS Bioalcohols,are produced by the action of

microorganisms and enzymes through thefermentation of sugars or starches,or cellulose.

Ethanol fuel is the most common biofuel worldwide.

Alcohol fuels are produced by fermentation ofsugars derived from wheat, corn, sugar beets,sugar cane, molasses and any sugar or starchmade from (like potato and fruit waste, etc.).

The ethanol production methods used are enzymedigestion (to release sugars from stored starches),fermentation of the sugars, distillation and drying.

Ethanol can be used in petrol engines as areplacement for gasoline.

Ethanol Fuel Power Plant inNorway


5/22

BIOFUEL

Biodiesel Biodiesel is the most common biofuel in Europe. It is produced from oils or fats using transesterification and is a liquid similar in

composition to fossil/mineral diesel. Chemically, it consists mostly of fatty acidmethyl (or ethyl) esters (FAMEs).

Biodiesel can be used in any diesel engine when mixed with mineral diesel.

Biodiesel is an effective solvent and cleans residues deposited by mineral diesel,engine filters may need to be replaced more often, as the biofuel dissolves olddeposits in the fuel tank and pipes.

GREEN DIESEL Green diesel, also known as renewable diesel, is a form of diesel fuel which is

derived from renewable feedstock rather than the fossil feedstock used in most

diesel fuels.


6/22

BIOFUEL

Biogas Biogas is methane produced by the process of anaerobic digestion of

organic material by anaerobes.

It can be produced either from biodegradable waste materials or by the useof energy crops fed into anaerobic digesters to supplement gas yields.

The solid byproduct, digestate, can be used as a biofuel or a fertilizer.
http://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpg


7/22

GEOTHERMAL ENERGY

Geo thermal energy is theenergy which is extractedfrom the heat of the sun

This energy is present intothe earth due to the decayof minerals and absorptionof sunlight by earth

Geothermal heatingapplication was limitedearlier near to the tectonic

plates only. However, nowthis viable energy source isexpanded over largegeographical area.

Steam rising from the Nesjavellir

Geothermal Power Station in Iceland.
http://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpghttp://en.wikipedia.org/wiki/File:NesjavellirPowerPlant_edit2.jpg


8/22

GEOTHERMAL HEATING

Geothermal heating is the direct use of geothermalenergy for heating applications.

WORKING Closed loop geothermal heat pumps circulate a carrier

fluid (usually a water/antifreeze mix) through pipes buriedin. As the fluid circulates underground it absorbs heat the

ground The heat extracted and that generated by the heat pump

appliance as a byproduct is used to heat the house. Switching the direction of heat flow, the same system

can be used to circulate the cooled water through thehouse for cooling in the summer months.

The heat is exhausted to the relatively cooler ground (orgroundwater) rather than delivering it to the hot outsideair as an air conditioner does.


9/22

BIOMASS

Biomass sources:

Definition : Biomass is the common name for organic materials used asrenewable energy sources such as wood, crops and waste.

garbage, wastewoodlandfill gasesalcohol fuels

municipal solid waste (MSW)

manufacturing waste


10/22

Types of Biomass:

1. Wood and Agricultural Products

generate electricitypulp and paper industries

2. Landfill Gas

methane gas

biogas digesters

3. Solid Wastegarbage

Wood is a typical source of biomass


11/22

Advantages of Biomass

inexpensive way of producing electricity

exhaustible natural resource

produces oxygen and utilize more carbon dioxide

lower the pressure of buying foreign oil


12/22

Solar energy

Application of Solar energy

Solar energy is the energy received by the earth from the

sun. This energy is in the form of solar radiation, whichmakes the production of solar electricity possible.

4. Solar Power Tower

3.Solar water heater

1. Solar Chemical

2.Solar Pond


13/22


14/22

HYDRO ENERGY

DEFINATION:Hydro-electric power

means getting energy from flowing

water

WORKING: Usually we build a dam,and let the water turn turbines &

generators as it goes through pipes

in the dam

ADVANTAGES: No pollution, nofuel needed, no waste, Electricity

can be generated constantly.


15/22

WIND ENERGY

DEFINATION: Wind energy means

getting energy from winds.

WORKING: The wind blows the

propeller round, which turns agenerator to produce electricity.

ADVANTAGES: Doesn't cause

pollution, doesn't need fuel, Wind

farms can be tourist attractions.


16/22

WAVES ENERGY

DEFINATION: Waves are used forgenerating the energy.

WORKING: Waves can make

something bob up and down, and that

can drive a generator. A wave powerstation needs to be able to stand really

rough weather, and yet still be able to

generate power from small waves.

ADVANTAGES: Not expensive tooperate and maintain, the energy is

free - no fuel needed, generates great

amount of energy.
http://en.wikipedia.org/wiki/File:WaveDragon.JPG


17/22

TIDES ENERGY

DEFINATION:Tidal Power is obtain from

tides going in or out.

WORKING: A huge dam called a

"barrage "is built across a river estuary.

When the tide goes in and out, the water

flows through tunnels in the dam.

ADVANTAGES: Doesn't cause pollution,

doesn't need fuel.

.

S t bl
http://www.swanturbines.co.uk/


18/22

et Blueprints For A Green House

hange Your Light Bulbs

ight Up Your City

Some ways to use renewableenergy


19/22

Pay your bills online

Turn up the geothermalheat

Wear a green eye-

shadow


20/22

Check the label

Shut off your computer

Make your garden grow


21/22

CONCLUSION

Advantages

Awareness

There is a sufficiency in the worldfor man's need but not for man's

greed.~Mohandas

K. Gandhi


22/22

renewable energy12

Documents