Egee 101 Homework 5 Writing
ENERGY AND THE ENVIRONMENT
This is a general education “technical” course designed primarily for “nontechnical” students, freshmen and seniors alike. It is also quite useful as an introductory course for students of science and engineering.
This is also a course that introduces the students to the METHODOLOGY OF LEARNING. The Internet has revolutionized the storage and transfer of information. But it is also revolutionizing the learning process. And it came at just the right time. We increasingly need to acquire “interdisciplinary” knowledge, and yet what we must know within our own disciplines keeps growing and growing and growing... So how do you provide a renaissance-type education in the 21st century? Courtesy of the Internet!! Learning boils down to grasping ONLY THE BOTTOM LINE. This means identifying and understanding the KEY ISSUES, and being able to quickly find and analyze the relevant (and reliable!) information.
In mid-August 2003 a major regional blackout occurred. Electricity, the lifeblood of modern society that too often we take for granted, as well as energy policy, has now taken center stage (again). See, for example, “Backward on Energy,” the NYT editorial of .
Our Fall 2003 class will begin with this issue. We’ll analyze some of the media accounts. For example, Daniel Yergin and Makovich write in the NYT (August 17) that “the country has built more power plants—enough to create a glut of power in most parts of the country.” They also say that our “electricity use increased 8 percent over the past four years, while electric generating capacity expanded by 12 percent.” We’ll use the Internet to quickly verify these statements and then discuss their take-home messages. (See HW1!)
Here is a partial list of recent media reports about energy and the environment. We’ll discuss as many of them in class as possible...
Great care is taken not to teach either chemistry or physics “through the back door.” We only discuss those physical and chemical concepts that are ABSOLUTELY NECESSARY. The central concept is that of energy conversion efficiency. Rudimentary elements of chemical reactions are introduced to understand the use of fossil fuels and its environmental impact. The planetary model of the atom and the venerable E=mc2 equation are introduced to understand nuclear fission and fusion. An analogy is drawn between the heating value of fossil fuels and the binding energy of nuclear fuels. And that's it!
The entire course is structured around the supply/demand energy balances, or lack thereof, in both the United States and the world. It is on these balances that the entire structure of modern civilization depends. In the first part, we make the point that there is an imbalance between the energy forms that are available on our planet essentially for free (e.g., solar energy, gravitational energy) and the energy forms that our industrialized society needs (e.g., electricity, mechanical work). This imbalance requires that we spend some time discussing the laws that govern the conversion of one energy form into another. In the remainder of the course, we make the point that certain energy forms (e.g., chemical energy stored in petroleum) are much less plentiful today than others (e.g., chemical energy stored in coal), especially when considering their geographical distribution.
On the world has changed. The almost faceless high-tech terrorism, which has been plaguing regional conflict areas for decades, has declared global war on “western” civilization. In order to preserve civilized society, we must defeat this (one?) enemy, if we know who it is. But we better also recognize the fact that high-tech terrorism, with all its desperate fanatics, does have an increasing number of highly trained, intelligent and (in their clouded minds) rational recruits. The desperation that has led them to these counterproductive actshas its roots in industrial society’s attitudes toward energy and fuels. This course touches upon these issues as well. For in-depth analysis, the following books are recommended (see www.amazon.com or www.bn.com):
“The Lexus and the Olive Tree,” by Thomas L. Friedman (2000)
“The Prize: The epic quest for oil, money and power,” by Daniel Yergin (1991)
“Natural Capitalism: Creating the next industrial revolution,” by Paul Hawken, Amory Lovins and Hunter Lovins (1999)
“Longitudes and Attitudes: Exploring the world after September 11,” by Thomas L. Friedman (2002)
See also the insightful NYT editorial of , “Not a Fuels Errand,” by Paul Krugman, http://www.nytimes.com/2001/09/26/opinion/26KRUG.html.
See also Selected bibliography. Some of the more recent stimulating books are the following:
“Megawatts and Megatons: A turning point in the nuclear age?” by R. L. Garwin and G. Charpak (2001).
“In this complex world, full of perils and promise, we have pointed to a path that for many centuries can allow the world to profit from the benefits of nuclear energy while minimizing the threat posed by nuclear weaponry. It is well within the ability of governments and industry to achieve these goals. But it will happen only if an informed and concerned public pushes them to recognize and to solve these problems. It is the public that is, after all, likely to pay the price of poorly chosen public policy. It is the public for whom we have written this book and to whom it is dedicated.” [p. 383]
“The Hydrogen Economy: The creation of the worldwide energy web and the redistribution of power on Earth,” by Jeremy Rifkin (2002).
Quote from the cover: “Hydrogen has the potential to end the world’s reliance on imported oil and help defuse the dangerous geopolitical game being played out between Muslim militants and Western nations. It will dramatically cut down on carbon-dioxide emissions and mitigate the effects of global warming. And because hydrogen is so plentiful [Is it, really?] and exists everywhere on earth [Does it, really?], every human being could be ‘empowered’, creating the first truly democratic energy regime in history.”
When will this be available at your local Wal-Mart or Lowes? In my lifetime? In your lifetime? (Is this visionary leadership or simply misleading optimism?)
“Energy, the Environment, and Public Opinion,” by Eric R. A. N. Smith (2002).
“[The] vote ending local oil development and the public demand for government action to cut gasoline prices illustrate a critical aspect of the politics of the energy situation facing the . On the one hand, the public generally opposes new energy development. No energy source is popular. Nuclear power may be the least-liked form of energy production, but oil, coal, and hydroelectric power are hardly popular either. On the other hand, the public does not want to go without cheap, plentiful energy, nor does it fondly view the prospect of taking further action to conserve the nonrenewable energy sources we have. In short, the public wants to consume its energy cake and keep it undeveloped at the same time.” [p. 2]
“Power to the People: How the Coming Energy Revolution Will Transform an Industry, Change Our Lives, and Maybe Even Save the Planet,” by Vijay V. Vaitheeswaran (2003).
A very readable, if somewhat overly optimistic prediction about the future of energy and the environment. The author is The Economist’s Environment and Energy correspondent, holds a degree in mechanical engineering, and thus writes with both authority and great skill. In particular, he discusses California’s energy deregulation fiasco, not only in terms of the NIMBY, but also the BANANA syndrome (build absolutely nothing anywhere near anybody), and makes a renewed case, like Amory Lovins almost thirty years ago, for the virtues of ‘micropower’.
In a very recent book, entitled “Galileo’s Finger: The Ten Great Ideas of Science” (Oxford University Press, 2003), Peter Atkins devotes two lucid and very readable chapters to the ideas of energy and entropy. He cites C. P. Snow’s “The Two Cultures” -- very appropriately for our general education class -- to conclude that “[n]ot knowing the Second Law of thermodynamics is like never having read a work of Shakespeare.”
The general outline of the course is the following:
How to Balance Energy Supply and Demand?
For a quick closer look, see the overview or the Fall 2003 syllabus.
Here is Homework 1.
Review questions: 6-5, 7-2, 7-6, 8-1, 8-6, 9-4, 11-2, 11-4
Investigations: 7-8 (see also The Economist of ), 8-10, 11-20. (Extra credit: Find, attach and briefly discuss some more recent media reports about the issues discused in these Investigations.)
Another way to search for relevant articles is the following: Say, you want to find a more recent article on global warming (for Investigation 11-20). Go to PSU -> Libraries -> Research Tools -> E-Resources -> Web of Science (Note that Proquest Direct is there as well) -> Web of Science, 1986-date -> ISI Web of Science -> Full Search -> Deselect SI-Expanded (you don’t want articles that are too ‘technical’) -> General Search -> Topic: global warming -> Search -> Results p. 2 (scroll down): Verweij M, “Curbing global warming the easy way: An alternative to the Kyoto Protocol” (Sounds promising!)…
Note that this article appeared in “Government nd Opposition”, Vol. 38, pp. 139-161, published by Blackwell. You can access it on-line as follows:
Go back to E-Resources List -> Blackwell Science/Blackwell Publishing Journals -> Government and Opposition, etc… Fascinating! Right? (It sure beats the microfilms experience, doesn’t it!?)
Practice Exam #4 (same format as previous tests):
1. Indicate whether the statements in Review Questions 15-6, 16-6 and 17-5 are true or false. (Sorry for the typo in 17-5a…)
If you have not done well on the exams so far and need some extra credit, here is the opportunity:
(a) Do Investigation11-10 and provide an update on the PM10 vs. PM2.5 issueby summarizing and analyzing one or two more recent media reports.
(b) Do Investigation 13-5 and provide an update on the decommissioning of nuclear reactors by finding at least one more recent media report.
(c) Do Investigation 17-6 and provide an update on the prospects for a “hydrogen economy” within the next decade or two.
Homework 4 (due December 2)
Homework 5 (due December 11)
Here is a comparison of U.S. electricity generation efficiencies in 1994 vs. 2000 (we discussed this in class)…
Participate in the discussion about the class (get help on homework, make suggestions, etc.): CourseTalk (your chat room)
The final grade (FG) formula is as follows:
FG = 0.6*(average of best four tests) + 0.07*HW1 + 0.07*HW2 + 0.08*HW3 + 0.08*HW4 + 0.10*HW5 + EC
(Note: Borderline cases, such as 93.5 or 84.5, will be decided based on attendance and/or additional extra credit.)
Grade Statistics: 1987-2003
Here is the preface of the textbook that is available for this course (in pdf format).
EXTRA CREDIT ASSIGNMENT: In his above cited book, Jeremy Rifkin states the following (p. 189): “In an area where average wind speed is 7.5 meters per second, the propellers [of a wind turbine, approximately fifty meters in diameter] will generate about 250 kilowatts of electricity.” Using the knowledge gained in HW #1, verify this conclusion. (Hint: See also Illustration 16-2 in the textbook.)
Here is a clarification about “mtoe” (million tons of oil EQUIVALENT) as units of energy.
Here is a relevant recent cartoon. For extra credit, write a one-page essay about its relationship to energy and/or environmental issues. Be sure to use as many FACTS as necessary to justify your opinions.
Here is a typical (and misleading?) newspaper quote… (This one is from USA Today of 9/25/2002.) We must be a bit MORE PRECISE than this!
Here is another relevant cartoon… Do the same as above!
The entire textbook is now available on-line. Like a good web site, it is updated as frequently as necessary (or possible).
Chapter 1: Overview (pdf format).
Insert p. 2
Chapter 2: Concept of Energy (pdf format).
Chapter 3: Laws of Energy Conversion (pdf format).
Chapter 4: Efficiency of Energy Conversion (pdf format).
Chapter 5: Energy Supply and Demand (pdf format).
Figure 5-6 (new)
What do these oil-reserves “rankings” really mean? (See The Economist of 6/29/2002.)
Dejà vu all over again? (See The Economist of 4/13/2002.)
Chapter 6: Fossil Fuels: Overview (pdf format).
Chapter 7: Coal (pdf format).
Figure 7-2 (updated)
Is coal REALLY the “environmental enemy No. 1”? (See also Chapter 11 below...)
The Economist of 8/17/2002 says this about China: “It is also concerned about air pollution, particularly in the run up to the 2008 Beijing Olympics, and is enforcing a switch from coal to natural gas in its big cities. Closing small mines is part of an effort to show that the country is cutting down on greenhouse-gas emissions and supports the aims of the Kyoto treaty. Such gestures notwithstanding, coal remains king. China is its largest producer and consumer. Its mines employ millions of its people, and coal provides around 75% of its energy. With the demand for energy growing by about 3.5% a year and expected to double over the next 20 years [Understand this?], and despite strenuous efforts to provide other sources of energy, the International Energy Agency believes that coal will remain the country’s dominant energy source for the foreseeable future.”
Chapter 8: Petroleum (pdf format).
Figure 8-3 (updated)
Where to drill now? (From ENI commercial.)
No matter how you look at it, the Persian Gulf oil will be the bloodstream of the industrialized world for many years to come (from The Economist of 3/23/2002).
And what about Saddam Hussein? (See, for example, The Economist of 10/12/02.)
Now that Sadam is gone, do we need to drill in the Arctic National Wildlife Refuge? (See also National Geographic of August 2001.)
Chapter 9: Natural Gas (pdf format).
Figure 9-3 (updated)
Figure 9-4 (updated)
Chapter 10: 'Synthetic' Fuels, Oil Shale and Tar Sands (pdf format).
Chapter 11: Fossil Fuels: Environmental effects (pdf format).
Updated Review Questions/Investigations
Updated CO emissions trends (Excel for Windows)
Updated CO emissions trends (web page)
Comparison of CO and CO2 emissions
Is the cup half-full or half-empty? (See The Economist of 2/2/2002 and 2/16/2002.)
Can you confirm that Lomborg’s data on sulfur oxides emissions (he is a statistician, after all!) are reliable? And on nitrogen oxides and ozone?
For info on long-term trends in air quality (1900-1998), see http://www.epa.gov/ttn/chief/trends/trends98/trendcharts.pdf.
Smog is a local problem, acid rain is a regional problem, global warming (if indeed a long-term problem) is indeed a global issue, and an equivalent of the Montreal Protocol is needed for CO2 emissions… It hasn’t been as easy to come up with it… For a bottom-line understanding of the reasons, remember the back-of-the-envelope calculation done in class!!
For up-to-date info on the protocol, see http://unfccc.int. In order to appreciate what “7% reduction w/r toChapter11.pdf">Table 11-3.) What did they ‘want’ to say? (Of course, for journalists the difference between ‘monoxide’ and ‘dioxide’ may sound trivial…)
Chapter 12: Nuclear Energy: Introduction (pdf format).
Chapter 13: Nuclear Fission (pdf format).
Are pebble-bed modular reactors the impending saviors of the nuclear energy industry? (See, for example, The Economist of 6/29/2002.)
Chapter 14: Nuclear Fusion (pdf format).
Is it impossible (or just improbable)? (See The Economist of 7/20/2002.)
Chapter 15: Nuclear Energy: Environmental issues (pdf format).
Here is a recently published table that summarizes the status of nuclear power in industrialized nations.
Chapter 16: Water, Wind, Biomass and Geothermal Energy (pdf format).
Updated Figure 16-3
Updated Figure 16-5
There ARE controversies about the now famous Three Gorges Dam project... See, for example, The Economist of 7/6/2002. But the alternatives are often not discussed... Why? Even a dam in a “small place [can cause] big waves” (see The Economist of 9/21/2002).
There is much (unfounded?) optimism (among “enviromentalists” and energy independence hopefuls) that wind energy is ready and able to take a big chunk of the energy supply (see Flavin and Lenssen, “Power Surge,” W. W. Norton, 1994). See updated Figure 16-5 above. Here is a graph that illustrates the bottom-line virtues and liabilities of a wind turbine (see Manwell et al., “Wind Energy Explained,” Wiley, 2002). To understand (or verify the validity of) this graph, use Illustration 16-2. For an upbeat outlook, see the web site of the American Wind Energy Association.
Renewable energy consumption in the U.S. 1949-2000
The bottom line for future prospects of renewable energy: comparison of costs, in cents/kWh(e)!
Chapter 17: Solar Energy (pdf format).
Updated Figure 17-1
Updated Figure 17-10
Whether or not the Archimedes story (see p. 315) – that he was able to use the sun’s rays in Syracuse to burn the invading Roman fleet ships -- is reality or legend has been discussed recently by Frank Kryza in his book “The Power of Light: The Epic Story of Man’s Quest to Harness the Sun” (McGraw-Hill, 2003, pp. 37-48). There is no doubt, however, that played an important role in the early development of solar energy in the , when at the dawn of the 20th century, in , Frank Shuman demonstrated a solar-energy-powered steam engine. And here we are at the dawn of the 21st century, still trying (and failing once again?) to make it happen…
Chapter 18: Electricity (pdf format).
Updated Figure 18-3
Updated Figure 18-5 (Note the increasing use of natural gas, as well as coal and nuclear energy, for electricity generation!?)
Cumulative Figure 18-5 (updated)
Are more blackouts inevitable in a deregulated electricity market?
A solid future for lighting? (see The Economist of October 5, 2002.) Did the journalist forget something on this (semilogarithmic) graph? Here is a relevant quote that we should be able to understand, because it boils down to “our friends,” the concepts of efficiency (see, for example, RQ#4-2) and exponential growth: “A light is judged by the number of lumens it throws… The number of lumens per watt (lm/w) measures a light’s efficiency… The best white LEDs on the market emit 25 lm/w, which is almost twice as efficient as an equivalent tungsten-filament light bulb, but barely a third as good as a fluorescent tube. To become competitive, the devices need to reach 80 lm/w. To rule the world, 150 lm/w is probably required. If progress continues at the rate of the past 30 years, this will be reached by 2010.” Analyze this (and comment!) for extra credit…
The emergence of electric energy at the turn of the 20th century has transformed the world, of course. For a social history of energy technology and culture, including electricity, see “Consuming Power,” by David E. Nye, MIT Press, 1999.
Does it make sense to do the laundry, start the dishwasher, etc. at 3 am? Find out more about demand-side management in the consumption of electricity.
Chapter 19: Residential Comfort (pdf format).
Residential energy consumption statistics… For an example how to use this information, click here.
Chapter 20: Transportation (pdf format).
How many more cars can there be? (See The Economist of 4/13/2002.)
And the consequences for California (from The Economist of 7/27/2002)...
Are hybrids really “the next real thing”? (See The Economist of 9/28/2002.)
Updates for Tables 20-1 and 20-2: Top-selling cars in the … What is the message that these stats convey, regarding fuel consumption and environmental impact?
1991 1992 1993 1994 1995 1996 1997 1998 2003 [Source: Automotive News and Ward’s Automotive Yearbooks]
Updated Figure 20-10
Chapter 21: Energy Economics, Politics and Policies (pdf format).
G. W. Bush and global warming (from The Economist of 2/16/2002 and 6/8/2002).
Lovins’s Soft Path update (from “Natural Capitalism,” op. cit., p. 252): “[T]he half-century transition along a ‘soft energy path’ outlined in 1976 is already well under way… [E]fficiently used fossil fuels would bridge to appropriate renewable sources – ‘soft technologies’ – that would gradually take over. That’s roughly what happened.”
Is it really? Do you agree that (1) Amory Lovins was remarkably right regarding the TOTAL energy consumption trends, but (2) he grossly overestimated the contribution of renewables and underestimated the staying power of the “hard path” options (fossil fuels and nuclear energy)?
(last revised 12/06/2006)
- Поэтому все его последователи, достойные этого названия, соорудили себе точно такие. Беккер долго молчал. Медленно, словно после укола транквилизатора, он поднял голову и начал внимательно рассматривать пассажиров.