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LECTURE 1 INTRODUCTION. Dr . Rostamkolai. ECE 371 Sustainable Energy Systems. HUMAN ECOLOGY. There have been 3 constants in recorded history of humans Living together in a clean and safe environment Searching for useful energy

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lecture 1 introduction

LECTURE 1INTRODUCTION

Dr. Rostamkolai

ECE 371

Sustainable Energy Systems

human ecology
HUMAN ECOLOGY
  • There have been 3 constants in recorded history of humans
    • Living together in a clean and safe environment
    • Searching for useful energy
    • Developing better ways to obtain the supply of energy to make life safer and more comfortable (irreversible path)
human ecology1
HUMAN ECOLOGY
  • Therefore
    • For any growth rate, energy consumption will grow at a greater rate
    • Unless a more useful higher-specific-energy source than nuclear fission is discovered, nuclear energy will eventually become the preferred energy source
    • Issues with the dangers of nuclear power has forced humans to search for alternative sources of energy for the time being
human ecology2
HUMAN ECOLOGY
  • United Nations compiled data shows the world population growth from 0 A.D. to 2050
human ecology3
HUMAN ECOLOGY
  • UN projection shows a decline in annual incremental growth
human ecology4
HUMAN ECOLOGY
  • Also, UN compiled data on energy consumption
human ecology5
HUMAN ECOLOGY
  • The following table shows the world’s energy consumption per capita for the past 100 years

Quads = 1 x 1015 BTU BTU = 2.928 x 10-4 kWh

human ecology6
HUMAN ECOLOGY
  • The next table shows the Carbon/Hydrogen (C/H) ratio for rapid changes in preferred fuels
human ecology7
HUMAN ECOLOGY
  • The specific energy of fuel, which is defined as the amount energy available from a fuel per unit amount of mass (e.g., kJ/kg) is an indicator of ease of using a particular fuel

1.0e12

1.0e10

1.0e8

kJ/kg

1.0e6

1.0e4

1.0e2

1.0e0

human ecology8
HUMAN ECOLOGY
  • Where,
    • H2 – Chem: Chemical Hydrogen
    • Uranium: Nuclear Fission
    • (d,t) Nuc: Thermonuclear Fusion

(Hydrogen Bomb – Not civilian power)

human ecology9
HUMAN ECOLOGY
  • The interrelationship between economic development, food and energy resources, and environmental impacts raises the concern about the world survival
human ecology10
HUMAN ECOLOGY
  • Three major problems threatening the world survival are
human ecology11
HUMAN ECOLOGY
  • In conclusion
    • Continued growth in human population with

greater growth in energy demand may not be

sustainable far into the future

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