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10 Cards in this Set
- Front
- Back
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1. Renewable and nonrenewable energy, their sources. Net energy. |
A) Renewable: wind, water, biomass. Nonrenewable: fossil fuels, uranium. B) Usable amount of high quality energy. It's total amount of energy minus energy needed to get that, like net income (profit after subdtracting expenses) |
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2. Choose one fossil fuelz give pro-argument and another fossil fule against-argument. |
A) Oil: low cost, supply for 100 years, high net energy, technology developed. B) Coal: land disturbance, health threat, co2 |
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3. Electricty get from coal factory. |
Heat produced by burning coal boils water, it produce steam that spin the turbine. Tada! Electricity. |
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4. Electricity get from nuclear plant. |
Water heat up by uranium. Then steam rotate the turbine. Steam condensate and reused again. |
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5. Compare coal and nuclear electricity plants. |
A) coal: low cost, high net energy, high air pollution, land disturbance B) nuclear: high cost, low net energy, low air pollutikn, low land disturb. |
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6. Energy conservation and energy efficiency effects. |
Energy conservation - reducing the unneeded wastes of energy. Energy efficiency (getting more work from each unit of energy) is one way of that. We can save energy in transport, indsutry, buildings. |
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7. Pro and against argument for renewable energy resource. |
A) solar cells: high net energy, quick setup, no emission, land disturb. B) geothermal: scarce, depleted quick, co2, air pollution, noise and odor, high cost. |
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8. Compare buodiesel, hydrogen, ethanol fuels. |
A) Biodiesel: high net energy (palm), reduce co2 BUT high cost, no2 emission, biodiversity threat B) Ethanol: co2 reduction, high net energy (some plants) BUT low drive range, high cost, no2 emission C) Hydrogen: no emmision, safe, easy BUT h2 not found, high cost, no distribution. |
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9. Pros of shifting from macro to micro energy production. |
It would imrove the national and economic security, because country will rely on diversity of small domestic energy resources instead of few large power plants. |
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10. Summary of suggestion of more sustainable energy future. |
More renewable energy; Reduce pollution and health risks; Improve energy effiency. |
