urban power generation presentation

7/31/2019 Urban Power Generation Presentation

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By

Aveek Saha,

Debraj Saha,Partho Sarathi Ghosh&Pritam Sinha Roy


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0

10

20

30

40

50

60

2007 2008 2009 2010

Mumbai

Kolkata

New Delhi

chennai

X-axis: Time inYearsY-Axis: PowerConsumption inMega Watts


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The conversion of wind energy into a useful

form of energyMost productive in open windy spaces

Neighboring to urban areasRelatively near to an existingpower grid

Climatically stableenvironments


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Positioning the body inthe most optimumlocation

Aligning the generatorwith the body andharnessing the pedals

The internalworking of anordinary

windmill.


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One of the oldest forms of eco-friendly

power generation

Requires the least amount of startupfinances as compared to almost everyother urban power generation method(solar, thermal, hydel)

ideal for generation of power to light a

small town for 4 hours every day


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Depends heavily upon climactic conditions,

too high or too low wind velocities notfeasibleToo low velocities would not producesufficient Voltage;Too high velocities may damage the shaft oreven the stator.

For sufficient urban powergeneration, a considerablylarge number of windmillswould be required.


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Generation of useable power through Sunlight

Ideal for capita level power generation,i.e. per house or per residential locality

A sufficient amount of opensky is required


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How it works

Sunlight is incident on thesemiconductor Silicon Platesor Solar Panels.

The electrons on the surfaceof the plates get extraenergy and jump to higherlevels.

These electrons when connected trough acircuit display a net potential differenceand thus current flows.


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Primary Advantages

Apart from installation costs, solar panelsrequire very little maintenance and arethus very cost-effective on the long run

Can be easily designed to

optimize power generation byvariety of sizes shapes structures.


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Primary disadvantages

Like wind power, forsufficient PowerGeneration, a very largenumber of panels would berequired.

Even today the cost of a single set of solarpanels is equivalent to the price of half aton of coal


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Tidal Power

Generation of power through tidal kinetic

energyMost conveniently used in coastalregions

A few geographic restrictions exist;the turbine cannot be built on a steepcoast

Very effective in areas where power

demand is low but infrastructure ispoor.


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How it works

When the tideenters, thearmaturerotates to asufficientvelocity

generating acurrent

The identicalphenomenon

occurs when thetide goes out.

Commutator rings help maintain polarity


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Primary Advantages

The rise and fall of the tide is consistent,which makes it very predictable andreliable.

Tidal energy does not dependon the weather

The making of electricity inthis way is usually not verycostly, Also tides are active 24hours a day


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Primary disadvantages

Right now tides do not produce alot of electricity so its not very

efficient.

Barrages across river estuaries can

change the flow of the water, andbecause of that it is the place forbirds and other wildlife to live,because of this, there are somewildlife that could be in danger.

These two mackerel had gotten inside the turbineshaft container, as a result the generator wasshut down for 8 eight hours


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Hydel power Generationthe production of electrical powerthrough the use of the gravitationalforce of falling or flowing water.

Once constructed:

the project produces no directwaste

Has a considerably lower output level of

the greenhouse gascarbon dioxide(CO2) than fossil fuel powered energyplants

The Three Gorges Dam in China, the largesthydro-electric power station in the world.
http://en.wikipedia.org/wiki/Greenhouse_gashttp://en.wikipedia.org/wiki/Carbon_dioxidehttp://en.wikipedia.org/wiki/Fossil_fuelhttp://en.wikipedia.org/wiki/Three_Gorges_Damhttp://en.wikipedia.org/wiki/People's_Republic_of_Chinahttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/List_of_the_largest_hydroelectric_power_stationshttp://en.wikipedia.org/wiki/People's_Republic_of_Chinahttp://en.wikipedia.org/wiki/Three_Gorges_Damhttp://en.wikipedia.org/wiki/Fossil_fuelhttp://en.wikipedia.org/wiki/Carbon_dioxidehttp://en.wikipedia.org/wiki/Greenhouse_gas


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How it works

Water is accumulated in a greatreservoir/dam and droppedfrom a great height.

The turbine velocity increaseswith increase in depth ofturbine in reservoir.

The generator power supply cords are thus connectedto the urban main supply units.


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Primary AdvantagesLargest, cheapest renewable source of energy

does not pollute the atmosphere

very low operating costs.

respond to utility load demands


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Primary Disadvantages

Construction of dams is expensive

causes habitats to change, therebyendangering local and surroundingwildlife, earthquakes, landslides etc

produce large amounts of carbon dioxide andmethane from rotting vegetation.

Bhakra NangalDam wasconstructed at acost of Rs 245

Crores in 1948.


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urban power generation presentation

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