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Joined: Feb 2011
15-02-2011, 09:29 AM
Energy Conservation 03.ppt (Size: 8.76 MB / Downloads: 308)
Renewable energy sources
Wind (wind power)
Internal heat of the earth (geothermal)
Non-renewable energy sources
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
Joined: Apr 2012
26-04-2012, 10:45 AM
EnergyConservation_by_Dhawal.ppt (Size: 853.5 KB / Downloads: 37)
Types of Energy
Energy can be broadly divided into two categories-
Non Renewable Energy
Renewable energy can be generated continuously practically without decay of source. E.g.-
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.
A lot of energy exists inside earth crust. Natural hot water springs are a good source of getting such energy.