Unit 1: Ch 1 Environmental Problems, Their Causes
advertisement
Unit 8: Ch 18 Energy Efficiency & Renewable Energy Name_____________________________ Read Ch 18 & answer the following – you may attach additional pages if needed Date__________________ Per________ 1. The greater the percentage of energy that is converted to heat the (lower / greater) the energy efficiency. (Incandescent / Compact fluorescent) light bulbs are more efficient than (incandescent / compact fluorescent) light bulbs. Saving energy reduces pollution and saves _____________ on your electric bill. ______ of the commercial energy in the US is wasted. 2. Of the advantages of reducing energy waste listed in Fig 18-2, which 3 do you think are most important?: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 3. Define 'life cycle cost' explain its potential for saving energy and money. _________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 4. What is the relationship between net energy efficiency and the second law of thermodynamics? Explain how they are related – do not just define. ____________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 5. Define 'cogeneration' and describe its potential for saving energy. ______________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 6. Describe how hybrid and fuel cell vehicles work and the advantages and disadvantages of each: Hybrid vehicles Fuel cell vehicles Description Advantages Disadvantages 7. List & describe changes that can be made which would improve energy efficiency in NEW buildings. Provide specific examples when possible: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 8. List & describe changes that can be made which would improve energy efficiency in EXISTING buildings. Provide specific examples when possible: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 9. List 2 reasons why so much energy is wasted in the US: ______________________________________________________________________________ ______________________________________________________________________________ 10. Renewable sources of energy include energy directly from the ___________ or indirectly from ________________________________________________________________________________. Two other forms of renewable energy are ______________________ and using renewable energy to produce ______________________. Renewable energy resources receive much (lower / higher) government tax breaks, subsidies, and research and development funding than _____________________ and _____________________ which are (renewable / nonrenewable) energy resources. 11. Which state gets a large percentage of its electricity from renewable resources? ___________________ 12. Compare and contrast passive and active solar heating. Describe the technology used for each type. Passive solar heating Active solar heating 13. List 7 efficient ways to keep houses cool: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 14. Describe how each of the following work: Description Heliostats Power tower Solar thermal plant Solar cooker Photovoltaic cells 15. Compare & contrast small & large scale dams. Be sure to address major advantages of each over the other: Small scale dams Large scale dams 16. Explain under what conditions hydropower can emit greenhouse gases. ____________________________ ________________________________________________________________________________ ________________________________________________________________________________ 17. The world’s fasted growing energy sources is ________________ 18. Describe wind energy: How it works Where it is used & could be used 3 specific advantages most important to you 3 specific disadvantages most important to you 19. Describe biomass energy: How it works Where it is used & could be used 3 specific advantages most important to you 3 specific disadvantages most important to you 20. Describe 3 ways gaseous biofuels are generated and used. ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 21. Describe gasohol: How is it produced Advantages Disadvantages 22. Describe geothermal energy How it works Where it is used & could be used 3 specific advantages most important to you 3 specific disadvantages most important to you 23. Describe hydrogen based energy: How it works Where it is used & could be used 3 specific advantages most important to you 3 specific disadvantages most important to you 24. Many people think using hydrogen as a fuel is not safe because of its explosive nature. Explain why hydrogen fuel may actually be safer than gasoline. __________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 25. List and describe 5 government initiatives that would reduce emissions of carbon dioxide and other greenhouse gases: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 26. List the 3 advantages of decentralizing power systems that you think are most important: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 27. List and describe 4 specific government initiatives that would promote a sustainable energy policy: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Sign here to acknowledge all of the responses above are your original work: ________________________________
