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E N E R G Y
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E N E R G Y. From of energy. Energy has many interchangeable forms viz. Heat Light Mechanical power electricity. NATURE OF ENERGY SOURCES. Some sources like fossil fuels on which the present they world depends the most are exhaustible. Similar are nuclear and energy . - PowerPoint PPT Presentation
Transcript of E N E R G Y
From of energy
• Energy has many interchangeable forms viz.
• Heat• Light• Mechanical power• electricity
NATURE OF ENERGY NATURE OF ENERGY SOURCESSOURCES Some sources like fossil fuels on which the Some sources like fossil fuels on which the
present they world depends the most are present they world depends the most are exhaustible. Similar are nuclear and energy .exhaustible. Similar are nuclear and energy .
Some sources are renewable-they rebirth Some sources are renewable-they rebirth everyday .everyday .
Solar wind wave .Solar wind wave .
DEVELOMENT VSDEVELOMENT VS CONSUMPTIONCONSUMPTION
Development is direct to the of energy.Development is direct to the of energy. The more you are more is the energy .The more you are more is the energy . World primary energy demand.World primary energy demand. 1972 :270 ej1972 :270 ej (10(101818 j) j) 1985:390 ej 1985:390 ej 2000:590 ej2000:590 ej 2020:840 ej2020:840 ej
SOURCES OF ENERGYSOURCES OF ENERGY
There are many sours of energy There are many sours of energy Fossil fuels coal, oil and Nature gas Fossil fuels coal, oil and Nature gas Biomass Energy ,energy from plantsBiomass Energy ,energy from plantsHydro powerHydro powerNuclear powerNuclear power
Energy consumptionEnergy consumption
• Cave Man (10,00,000)years ago3kWh
• Hunting man (1,00,000 years ago) 7kwh • Agricultural man (5000BC)
13kwh • Industrial man (20th century) 260kwh• advanced Technically man • (21stcentury)
410kwh++
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