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LECTURE 1 INTRODUCTION

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

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  1. LECTURE 1INTRODUCTION Dr. Rostamkolai ECE 371 Sustainable Energy Systems

  2. 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)

  3. 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

  4. HUMAN ECOLOGY • United Nations compiled data shows the world population growth from 0 A.D. to 2050

  5. HUMAN ECOLOGY • UN projection shows a decline in annual incremental growth

  6. HUMAN ECOLOGY • Also, UN compiled data on energy consumption

  7. 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

  8. HUMAN ECOLOGY • The next table shows the Carbon/Hydrogen (C/H) ratio for rapid changes in preferred fuels

  9. 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

  10. HUMAN ECOLOGY • Where, • H2 – Chem: Chemical Hydrogen • Uranium: Nuclear Fission • (d,t) Nuc: Thermonuclear Fusion (Hydrogen Bomb – Not civilian power)

  11. HUMAN ECOLOGY • The interrelationship between economic development, food and energy resources, and environmental impacts raises the concern about the world survival

  12. HUMAN ECOLOGY • Three major problems threatening the world survival are

  13. 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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