Energy Conservation
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15-02-2011, 09:29 AM

presented by:
M.Dhivakar Karthick

.ppt   Energy Conservation 03.ppt (Size: 8.76 MB / Downloads: 308)
Energy Conservation
Energy Sources
Renewable energy sources

 Wind (wind power)
 Water (hydropower)
 Sun (solar)
 Vegetation (biomass)
 Internal heat of the earth (geothermal)
Non-renewable energy sources
 Oil
 Gas
 Coal
 Nuclear power plants
We use energy
 To Light our homes
 To Power machinery in factories
 To Cook our food
 To Play music
 To Operate televisions
In a home
 Air conditioner and heater = 50%
 Water heater = 20%
 Lighting and small appliances = 10%
 Refrigerator = 8%
 Other = 5%
 Ovens and stoves = 4%
 Clothes dryer = 3%
Why is energy conservation important?
 Nonrenewable sources impacts the environment,
 Fossil fuels contributes to air and water pollution,
 Carbon dioxide is produced when oil, coal, and gas combust.
 Carbon dioxide in the atmosphere acts as a transparent blanket-"greenhouse effect.“
 The sulfur dioxide reacts with water and oxygen in the clouds to form precipitation known as "acid rain.“
How can pollution prevention help you?
Changing What You Use…
 Walk, ride a bicycle, or use mass transit instead of driving-60 percent of air pollution in our cities.
 Install compact fluorescent light bulbs-last 10 times longer than incandescent light bulbs.
 Air-dry your clothes
 Install a programmable thermostat-automatically adjusts the temperature
 Buy energy-efficient appliances.
Changing What You Do…
 Set the thermostat to 68 °F in winter, down to 55° F.
 Insulate the ceiling, walls, and floor of your home.
 Plant a tree next to a window
 Recycle items such as newspaper, aluminum cans, and plastic bottles.
 Wash clothes in cold water and only in full loads.
 Use energy-saving settings on washing machines, dishwashers, and clothes dryers.
Improving Your Housekeeping…
 Turn down the water heater thermostat to 120° F.
 Turn off lights when leaving a room.
 Close heating vents and close doors to unused rooms.
 Close drapes and windows during sunny summer days and after sunset in cooler weather.
 Stop air leaks around windows and doors with caulk or weather stripping.
 Clean or change air filters on your air heating system
Saving Energy
 Reduce
 Reuse
 Recycle
 Save Electricity
 Save Gasoline
 Save Heat
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Posts: 10,003
Joined: Apr 2012
26-04-2012, 10:45 AM

Energy Conservation

.ppt   EnergyConservation_by_Dhawal.ppt (Size: 853.5 KB / Downloads: 37)

Types of Energy

Energy can be broadly divided into two categories-
Renewable Energy
Non Renewable Energy

Renewable Energy

Renewable energy can be generated continuously practically without decay of source. E.g.-
Solar Energy
Wind Energy
Geothermal Energy
Hydro Energy

Solar Energy

Solar energy can be converted into electrical energy by using solar panels, or alternatively, be used as thermal energy using solar water heaters, solar cookers etc.

Geothermal Energy

A lot of energy exists inside earth crust. Natural hot water springs are a good source of getting such energy.


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