Exponential Growth in Energy Consumption and Production - Prof. Ramak Rajagopalan, Study notes of Environmental Science

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EGEE 101

Energy Supply and

Demand

Objectives  The objectives are  To understand the energy supply and demand patterns  To understand the link between population and energy demand growth  To understand the significance of exponential function  To gain ability to predict energy demand

Total Energy Consumption

World Population Growth

Energy and Population Growth

There are numerous quantities that behave such that the amount of change, or the amount added per unit time, is not constant but proportional to the quantity, N, at that time. Where, (Delta) indicates a change at increment of the Delta) indicates a change at increment of the variable, and r is a growth constant Exponential Growth- function N t N ∝  

Doubling Time

Illustration

World’s Major Energy Producers (2004)

World’s Major Energy Consumers (2004)

Energy overview Source: http://www.eia.doe.gov/emeu/aer/eh/frame.html 16

Energy overview (contd.) Source: http://www.eia.doe.gov/emeu/aer/eh/frame.html

Natural gas Source: http://www.eia.doe.gov/emeu/aer/eh/frame.html

What about coal? Source: http://www.eia.doe.gov/emeu/aer/eh/frame.html 20