FSC 401

INTRODUCTION TO FUEL TECHNOLOGY

 

 

This course is meant to provide an “introduction to the scientific and engineering principles of fuel technology.” It is a much more ‘technical’ version of EGEE 101, whose objective is to provide an appreciation for the links between energy consumption, environmental quality and socio-economic realities.

 

We shall accomplish this objective in the following way:

(1) Show how simple mass and energy balances, as well as thermodynamic and kinetic analyses, go a long way toward understanding the key energy options (and dilemmas!) of the modern society.

(2) Use the Internet to (a) minimize the transfer of factual information, (b) maximize our ability to find the most relevant and up-to-date information, and (c) maximize our ability to adopt informed and critical views regarding energy and environmental policies.

 

We are interested in knowing the concepts and the important details… Everything else that is relevant, as we shall see, can be found on the Internet, if and when we need it (e.g., using google.com).

 

Fall 2007 syllabus

(Regarding Academic Integrity, we shall follow, if necessary, University Policy 49-20. See also www.ems.psu.edu/students/integrity.)

                                                                                                                                            

Grade scale: A, >93; A-, 90-93; B+, 85-89; B, 80-84; B-, 75-79; C+, 70-74; C, 60-69; D, 50-59; F, <50. (Borderline ‘cases’ are resolved based on extra credit assignments.)

 

 

In lieu of class activity #1: Find the most updated information on the DOE web site (www.eia.doe.gov) regarding the consumption of energy in the USA according to the various sources (coal, oil, natural gas, nuclear, hydro, solar, etc.). Download the relevant table (*.xls) containing data as a function of time (at least the last 30-40 years). Make a graph that clearly illustrates the answer to the following two important questions: (a) Has the relative contribution of natural gas increased or decreased over the past decade? (b) Do the unconventional renewable sources (i.e., solar, wind, geothermal, biomass) represent today more than 5% of the total energy consumption?

Does your graph look similar to this one?

 

In lieu of class activity #2: A May 27 article in The Economist, “Dirty king coal”, summarizes very well some of the most important current dilemmas regarding electricity generation in the 21st century. In order to “digest” it properly, do the following:

(i)                Download it from the PSU library web site (or use the old-fashioned way, by retrieving it from the stacks).

(ii)             Summarize what you believe to be the three most important points that the article makes.

(iii)           Using elementary mass balances and/or thermodynamics, try to explain the argument that “‘ultrasupercritical’ generation [of electricity] can cut CO2 emissions by a fifth”, presumably because “[s]tandard pulverized-coal (PC) generation can be made a bit cleaner by burning the fuel at higher temperatures”.

(iv)           Using elementary mass balances and thermodynamics, show whether the following statement makes sense: “If 60% of the 1.5 billion tonnes of CO2 that America produces every year from coal-fired power stations were liquefied for storage, it would take up the same amount of space as all the oil the country consumes.” [Assume that the USA consumes roughly a billion tons of coal per year and some 20 million barrels of oil per day. (Can you verify these ball-park numbers?)]

 

 

A recent NYT editorial mentioned that some 2 million barrels of oil per day could be saved if U.S. cars had, on average, an efficiency of 35 instead of 25 mpg. As we discussed in class, here is the analysis meant to confirm (or disprove?) this assertion.

 

Another simple mass/energy balance analysis can be carried out to understand the meaning of the European Commission’s goal for CO2 emissions from cars by the year 2012: 130 g/km (“The road ahead”, The Economist, 09/13/2007). How far is this from the current U.S. fuel economy standards of 27.5 mpg?

 

 

 Homework #1. Be sure to start working on the HW asap, in order to get maximum benefit from our discussions in class about it. (I want you all to get 100% on all the HWs... There is no reason not to, since most of the HW answers will essentially be provided in class.)

          -Here is one version of the solution.

 

Note: A HW dropbox has been activated in Angel for your convenience. Please use it to send the electronic version of your HW (now and in the future), if more convenient than submitting the paper version.

 

 

The following report on fuel technologies in the National Geographic of August 2005 is worth reading and analyzing, especially for the numbers it contains: “Future Power: Where will the world get its next energy fix?”.

          Example 1: “Replace one incandescent lightbulb with a compact fluorescent lamp and [over its lifetime] you will save this 500 pound pile of coal.”

                   (Can show?)

          Example 2: “Much of the world’s electricity is produced in coal-fired generators that belch carbon dioxide, mercury, and sulfur into the atmosphere.”

                   (Correct? Precise enough?)

          Example 3: “Panels covering less than a quarter of the roof and pavement space in cities and suburbs could supply the U.S. with all its electricity.”

                   (Can verify? Assumptions reasonable?)

          Example 4: “Wind is currently the biggest success story in renewable energy. Europe’s turbines can generate the power of 35 coal-fired plants.”

                   (True? Impressive?)

          Example 5: “Powering all the world’s vehicles with biofuels would mean doubling the amount of land devoted to farming.”

                   (Can verify? Assumptions needed?)

          Example 6: Imagining New York without fossil fuels

                   (Comments?)

          Example 7: “Without a big push from government… we may be condemned to rely on increasingly dirty fossil fuels as cleaner ones like oil and gas run out, with dire consequences for the climate.”

                   (Makes sense? True? Comments?)

 

 

Summary of concepts and important details (to be discussed) regarding the links energy ßà environment and energy supply ßà energy demand and the laws of energy conversion:

          -fossil fuel combustion (almost) inevitably produces air pollution (especially NOx and CO2… Why?)

          -energy supply is of course practically limitless… but certain forms of energy are much less plentiful than others (Which ones?) See www.eia.doe.gov and www.usgs.gov.

          -use of the reserves/consumption index (e.g., X barrels/(Y barrels/yr) = Z yrs) is convenient… But is it realistic? What is it good for?

          -with all the uncertainties involved in estimating reserves, one observation is certain: the Hubbert curve for oil and gas will peak (maybe it already has!?) much earlier than that of coal.

          -energy demand (policies) should reflect these “laws of nature” and not only day-to-day economic realities…

          -2nd law analysis should help us to understand the ‘folly’(and the convenience?) of using electricity to heat our homes, or the inefficiency of an incandescent light bulb: low efficiency for processes with decrease in entropy! It costs $$ to go against nature (air conditioner vs. open windows)…

          -wind (mv2/2) vs. hydro (mgh): example of a law of nature that should keep us optimistic but sober about wind turbines… and explains the hopes for North Dakota!

          -By “air quality” we mean absence of pollutants… Right? But what is a ‘pollutant’? What is the difference between ‘primary’ and ‘secondary’ pollutants?

The most authoritative source of info on air quality: www.epa.gov.

 

These days, the energy-environment link is not so much S à SO2, N or N2 à NOx, C à soot, or C à CO, but C à CO2 (i.e., potentially damaging climate change). The National Geographic summarizes the business-as-usual trends as follows

 

Therefore, the “holy grail” of energy supply for vehicles these days is hydrogen. The National Geographic article summarized two “hydrogen futures” scenarios: Conventional technology                             Zero emissions technology

 

See also the October 2007 issue of National Geographic: “The Carbon Crisis” or “Carbon’s New Math”. Let’s do the math! For example, let’s show that, indeed, one billion metric tons of carbon per year (“one wedge”) can be saved if we “improve fuel economy of the two billion cars expected on the road by 2057 to 60 mpg from 30 mpg”.

 

For our discussion of renewable fuels (during the first week of November), the related article in the same issue of National Geographic, “Green Dreams: making fuel from crops could be good for the planet – after a breakthrough or two”, will be quite useful!

 

 

The bottom line of all discussions about energy conversions: EFFICIENCY (useful energy output divided by total energy input)

          (See Chapters 1-4 in the book-on-the-web… Useful bedtime reading?)

 

 

Here is an example of (a simple but important) exercise in parametric sensitivity analysis.

 

 

We shall have no class meetings on 9/25, 9/27 and 10/2. Instead, we shall have the first exam (see below) and you will have an in-lieu-of-class activity (see below).

 

Exam 1

 

In-lieu-of-class-activity #3 (to be uploaded in Angel dropbox by midnight 10/2): View “The Prize: The Epic Quest for Oil, Money and Power” (a PBS series based on Daniel Yergin’s Pulitzer Prize book). The four VCR tapes (Parts I-VIII) are available (on 2-hour reserve) in the EMS library. Prepare a four-page summary of the main issues discussed in this TV-series, paying special attention to the following questions:

-What happened in Titusville, PA and when?

-What was the first large use for petroleum?

-What was John D. Rockefeller’s claim to fame (and fortune)?

-How did Henry Ford change petroleum’s fate at the turn of the 20th century?

-Who was Ida Tarbell and what was her claim to fame?

-Who was Marcus Samuel and what was his claim to fame?

-Why is (was) oil “a business too important to be left to businessmen”? What happened in Texas in the 1930s?

-What is a ‘gusher’? Who were/are the ‘wildcatters’?

-Give some examples that support the statement that “oil [is] the untold story of World War II.” What was the importance of “100 octane” fuel?

-What part did the “synthetic fuels” play in World War II?

-Who was Walter Teagle and what was his relationship to J. D. Rockefeller?

-Why was Japan interested in the “Dutch Indies”?

-What is/was the “tinderbox”?

-What happened in 1973 in the Middle East? Who imposed an oil embargo on whom and why?

-What happened in 1979 in the Persian Gulf? What happened in 1971 in the Persian Gulf?

-What happened in 1991 in the Persian Gulf?

-Which decisions related to the Middle East had been made in Pittsburgh? And why in Pittsburgh?

-Was there a single event that propelled the Japanese automobile industry into world dominance?

-When was Alaskan oil ‘discovered’ and developed, and why?

-Where in the world is the “new Persian Gulf” when it comes to petroleum for the 21st century? Where is Baku and why is it of interest?

-In what context is California mentioned in “The New Order of Oil” segment?

-Why (and when) was the Exxon Valdez accident a “watershed in the history of the oil industry?”

 

 

COAL SCIENCE AND TECHNOLOGY (Chs. 7, 10 and 11 in the book-on-the-web)

 

For a very readable recent account of coal’s importance in the development of modern society, see Barbara Freese’s “Coal: A Human History.” Here is her conclusion:

“If we do trigger drastic climate changes, all of coal’s contributions to the empowerment of humanity will be overshadowed by the enormous price of that power. Our excuses for continuing to burn coal while ignoring the threat of climate change for so many years – our lack of scientific certainty, our desire to keep our electric rates low, our fear of a slowed economy, and our reluctance to make sacrifices others are not forced to make – will ring hollow to those coping with the catastrophic consequences of our actions.

If, on the other hand, we can actually make the transition to a safer energy system before we cause more than mild climate changes, our coal use won’t be strongly condemned by future generations. Some of our descendants may simply see coal as a strangely primitive fuel and wonder how we tolerated it for as long as we did. The more thoughtful among them may recognize it as an important energy source that, for all its faults, brought us through a sort of prolonged industrial childhood and ultimately gave us power to build a world that no longer needed coal.”

 

Another recent analysis of the coal industry was provided by Jeff Goodell: “Big Coal – The Dirty Secret behind America’s Energy Future” (Houghton-Mifflin, 2006, 324 pages). Here are a few excerpts:

          “We may not like to admit it, but our shiny white iPod economy is propped up by dirty black rocks. This was not how things were supposed to go in America. Coal was supposed to be the engine of the industrial revolution, not the Internet revolution. It once powered our steamships and trains; it forged the steel that won the wars and shaped our cars and skyscrapers and airplanes. It kept pioneers warm on the prairie and built fortunes for robber barons such as Henry Frick and Andrew Carnegie. Without coal, the world as we know it today would be impossible to imagine… In the coming decades, the great danger is not that the world will burn more coal – that’s a given – but that we will burn it badly, cheaply, exploitatively. Instead of building modern IGCC plants that at least allow for the possibility of sequestering the CO2 underground, we will throw up another generation of coal burners that will pump millions of tons of CO2 into the atmosphere and accelerate global warming… Instead of helping developing countries leapfrog beyond coal, we will turn them into fossil fuel addicts like ourselves. But it doesn’t have to be this way.

What can we do?

First, we must recognize that the world faces two enormous challenges in the coming years: the end of cheap oil and the arrival of global warming… Second, it is important to see that the barriers to change are not technological but political… Third, we need to find ways to make the invisible visible. I mean this in the broadest possible sense. Big Coal has thrived largely because the costs of air pollution, miners’ safety, devastated mountains, and global warming are invisible to us as consumers of electricity…

Old coal plants are more than just relics of an earlier era; they are giant bulwarks against change, mechanical beasts that are holding back a flood of ideas and innovation. When we muster up the courage to knock them down, the revolution will begin. It’s not that I have blind faith that technology will save us or that I think we can snap our fingers and replace all the coal plants in the world with wind turbines and solar panels; I simply believe that it’s within our grasp to figure out less destructive ways to create and consume the energy we need.”

 

          -coal composition, C/H ratio, S content, ash ‘content’, widely varying heating values

-PCC (C+O2), nice example of Arrhenius-type behavior (high T necessary)

-FBC (AFBC, PFBC), CaO + SO2 + 0.5O2 = CaSO4 (intermediate T OK, so lower NOx as well)

-IGCC (see, for example, http://www.tampaelectric.com/news/powerstation/polk/igcc/), C+H2O, C+O2 (Why? Thermo software: Try StanJan or Chemeq.bas!)

-coal liquefaction (makes sense at >$50/bbl?), C+H2 (OK, but where will the H2 come from?)

 

See National Geographic of March 2006, pp. 96-123.

          -“Coal is king again. Oil supplies are tight and natural gas prices are spiking, but coal could light our houses and power our factories for centuries. The price of this energy abundance could be high, however… ”

          -“… the giant Gibson generating station is … gulping 25 tons of coal each minute, sending thousand-degree steam blasting through turbines that churn out more than 3,000 megawatts of electric power… pumping enough power into the grid for three million people.”

          -“The U.S. is the Saudi Arabia of coal. About 40 coal-burning power plants are now being designed or built in the U.S. China, also rich in coal, could build several hundred by 2025.”

          -“Who has coal? The world has more than a trillion tons of readily available coal: 27% in the U.S., 17% in Russia, 13% in China, 10% in India, 9% in Australia, 5% in South Africa…”

          -“Who uses coal now? Global coal consumption is roughly five billion tons a year, with China burning the most, 1,531 million tons, Europe 1,117, U.S. 1,094, India 431, Russia 251…”

          -“A hundred miles up the Wabash River from the Gibson plant is a small power station that looks nothing like Gibson’s mammoth boilers and steam turbines. This one resembles an oil refinery, all tanks and silvery tubes. Instead of burning coal, the Wabash River plant chemically transforms it in a process called coal gasification.”

 

 

THERMODYNAMICS OF FUEL TECHNOLOGY

 

Introductory example: The heat capacity (Cp) of a substance, and the temperature dependence of Cp, is by far one of its MOST important fundamental properties, because many other of its properties as well as its behavior can be predicted from it. Therefore, it is very important to have a reliable Cp=f(T) function for substances of interest. Use at least three different sources to construct a graph of Cp vs. T for carbon and for NO.

 

Once you have reliable Cp vs. T info, you can use readily available software (e.g., Chemeq.bas) to quickly answer some of the fundamental questions about the fuel technologies of interest, many of which are based on relatively straightforward chemical processes.

 

 

PETROLEUM SCIENCE AND TECHNOLOGY (Chs. 8, 10 and 11 in the book-on-the-web)

 

For a Pulitzer prize-winning account of petroleum’s importance in the development of modern society, and especially in the history of the last 150 years, see Daniel Yergin’sThe Prize: The epic quest for oil, money, and power.”

 

For a recent analysis of the potential effect of petroleum on national (and international) politics, as well as society’s goals, see “The Energy Mandate” column by Thomas L. Friedman of The New York Times. For a more recent analysis of a key issue – vehicle efficiency standards – by the same author in the same newspaper, see “Et tu, Toyota!?”

(Can you find these quickly using ProQuest?)

 

          -composition, C/H ratio, S content, relatively constant heating value for a wide variety of products

          -why need ‘refining’ before use?

          -gasoline: SIE (octane number)

          -reformulated gasoline

          -diesel fuel: CIE (cetane number)… Does its composition really vary (significantly) between the products made in Europe and USA?

                   -Chevron1 (www.chevron.com/products/prodserv/fuels/bulletin/diesel/L2_4_fs.htm)

-Chevron2 (www.chevron.com/products/prodserv/fuels/bulletin/diesel/L2_5_fs.htm

          -biodiesel

          -jet fuel: turbines

          -fuel oil #2: home furnaces

          -fuel oil #6: industrial furnaces

          -petrochemistry

 

 

KINETICS OF FUEL TECHNOLOGY

 

Here is a summary of the very instructive analogy between electric circuits (remember Physics 101?) and other (e.g., chemical) rate processes.

 

Let’s show, using elementary chemical kinetics, why particle size is so important in coal combustion and why ‘pulverized’ coal (ca. 0.1 mm) is necessary for combustion in entrained-flow reactors, whereas much larger particles are sufficient (and necessary!) for FBC.

The following equations for characteristic combustion times can be derived. (The complete derivation is outside the scope of our course…) 

 

tdif = (rp Rp2)/(2 M DO2 CO2)

 

trxn = rp Rp/(k CO2)

 

Note in the above expression for trxn that the density of the carbon should be in mol C/cm3 (and not the more common g C/cm3), and the implicit assumption is that the reaction stoichiometry is 1 mol C/1 mol O2 (which of course makes sense). In the attached Mathematica file, ‘play’ with the key parameters to convince yourself that at high temperatures diffusion of O2 is the rate-determining step and that at low temperatures chemical reaction is the RDS. Show also the effects of particle size, as they relate to FBC vs. PCC conditions.

For more exercises on the Arrhenius equation, see this web site.

 

 

NATURAL GAS SCIENCE AND TECHNOLOGY (Chs. 9 and 11 in the book-on-the-web)

 

For a recent analysis of the prospects for greater reliance on natural gas in the coming decades, see Julian Darley’s “High Noon for Natural Gas: The New Energy Crisis.”

 

          -composition, C/H ratio (Why the most convenient and environmentally friendly of all fossil fuels?)

          -really plentiful (for decades to come)? And affordable? Let’s compare some hard numbers! (For an optimistic view see, for example, C&E News of 10/3/2005.)

          -and what about LNG?

          -why do electric utilities love it (for the moment)?

          -does Detroit love it too?

          -and what about those of us who literally can’t live without it?

          -is it possible (or sustainable?) that both coal- and gas-derived electricity cost the same, ca. 5 cents/kWh, to produce? (See NatGeog, 8/2005, p. 18)

 

 

Homework 2: due 10/18.

          -Here is a template for Problem #1. Be sure to analyze carefully the calculations in each one of the relevant cells, so that you can adapt it confidently to your needs.

          -Here is a template for Problem #2. Let’s modify it to include another one of the RFG additives.

          -Here is the van’t Hoff diagram for lime sulfation (CaO+SO2+0.5O2=CaSO4) and limestone decomposition (CaCO3=CaO+CO2), together with an analysis of the reliability of Cp vs. T polynomials. Can you get the same graph? (Are all the substances needed available in the react.dta database? Do you agree -- based on a comparison with information provided by, for example, Perry (18.52+0.02197T-156800/T2) -- that the following should be used?)

“CaSO4",-1305.,-1417.2,70.2,9.87,0,0,0

 

 

In-lieu-of-class activity #4: A movie “Hot enough for you?” will be available for your viewing in the Music and Media Center at Pattee library (2-h reserve). Prepare a summary of its contents and its main message ( 1-2 pages), and be prepared to discuss it in class next week.

 

In-lieu-of-class activity #5: Take a quick look at the Stern Review on the economics of climate change and construct a graph, either based on a table provided there or based on several of its own graphs, which will illustrate an important technical message to be considered by politicians and decision makers regarding the future of fossil fuel technologies.

 

 

SOx REMOVAL TECHNOLOGIES (see www.epa.gov)

          -before combustion: coal ‘cleaning’, coal conversion (gasification or liquefaction); petroleum refining (HDS); gas separation

          -during combustion (FBC): remember the thermodynamic analysis of S capture?

          -after combustion (FGD: absorption, adsorption, see FSC 430)

                   -solubility of H2S (obtained in fuel gasification) vs. SO2 (obtained in fuel combustion) vs. partial pressure!?

Here the key issue is the required efficiency of the removal device. This is obtained as follows:

          -determine the uncontrolled emissions (from the mass balance; double-check by consulting AP-42): X

          -find out the allowed emissions for your particular case (e.g., NSPS; not to be confused with NAAQS): Y

          -required efficiency, E = (X-Y)/X

          -screen available technologies (e.g., www.epa.gov/ttn/chief/ap42/ch01/final/c01s01.pdf, Table 1-1-1) and eliminate those whose efficiency is lower than E

 

NOx REMOVAL TECHNOLOGIES (see www.epa.gov)

          -during combustion (T control, A/F ratio control)

          -after combustion (adsorption, selective reduction)

Here is an important NOx equilibrium analysis.

Here also the key issue is the required efficiency of the removal device. The procedure is the same as for SOx, except that the mass balance does not help much. (Why?) Be sure to get X from the most authoritative source (Federal Register, e.g., Vol. 63, No. 179, 9/16/1998)!

 

UNBURNED HYDROCARBON (VOC) REMOVAL TECHNOLOGIES

          -VOC’s contribute to smog formation (see FSC 430)

          -‘incineration’ or “thermal oxidation” or “catalytic oxidation” (fancy terms for combustion)

          -the kinetics of the reaction is the key here… See example for benzene vs. toluene destruction.

          -adsorption (but what then…?                   Easier incineration?                 Recovery?)

 

CATALYTIC CONVERTER: Three-way catalyst! (See, for example, http://auto.howstuffworks.com/question66.htm.)

          -CO oxidized to CO2      (Here is a stoichiometric analysis of “fuel-rich combustion”, when not enough O2 is supplied for complete combustion. See a more ‘sophisticated’ version here.)

          -unburned hydrocarbons oxidized to CO2 and H2O

          -NOx reduced to N2

How does it accomplish this ‘miracle’? à “Highly dispersed noble metal on a honeycomb support”

Let’s get a feel for what this means by doing the following back-of-the-envelope calculations (extra credit assignment):

Very small Pt particles (essentially a ‘monolayer’) are deposited on a ceramic substrate such that their surface area is 100 m2/g. (Is this a reasonable number?) Estimate the maximum amount of Pt in the catalytic converter if the converter does not cost more than $500 to produce. (This IS a reasonable number! Right?) With these assumptions (and some others), estimate the fraction of the world’s production of Pt that would be consumed by the automobile industry.

(Note: A similar calculation is also important to assess the impact of fuel-cell-based cars on the precious metals market.)

 

ACID RAIN and SMOG

          -SOx and NOx à H2SO4 and HNO3

          -What is smoke and what is fog? (soot particles, H2O and other droplets)

          -beneficial vs. detrimental ozone

          -Technology exists, but who is going to pay… (see FSC 430)

 

GREENHOUSE GASES

          -The Kyoto Protocol went into effect... and Al Gore and IPCC won the 2007 Nobel Peace Prize... So, what do we do now?

          -Science just plain “makes sense”, so it’s better to be safe than sorry OR cause-effect relationship established (unequivocally), so we MUST act?

          -CO2, CH4, N2O, CFCs

          -For one (feasible?), conveniently graphical proposal toward a solution, see http://www.princeton.edu/~cmi/resources/CMI_Resources_new_files/CMI_Stab_Wedges_Movie.swf.

 

Here is an example of a detailed analysis of a CO2 “stabilization wedge” (Socolow and coworkers, CMI, Princeton). Be sure to study it carefully.

 

Note: Be sure to also review the relevant web pages on the “Fuel Technology for Poets” web site!

 

Not surprisingly, the Stern Report, published recently, is also gaining lots of publicity. Its bottom line is perhaps surprising: Even though the global temperatures are predicted to increase as much as 5-6 oC by 2100, the world apparently could stabilise CO2 concentrations at a reasonable level at a cost of 1% of GDP by 2050. As The Economist put it (“Stern warning”, 11/02/06), “[j]ust as people spend a small slice of their incomes on buying insurance on the off-chance that their house might burn down…, so the world should invest a small proportion of its resources in trying to avert the risk of boiling the planet.”

         

How well have we been doing in removing air pollutants?     (Any updates? Extra credit assignment!)

 

And what about the CO2 emissions in developing countries, such as China? (What are the key issues here?)

 

 

Exam 2 (to be posted by midnight Tuesday (10/30), due in Angel dropbox by midnight Thursday (11/1).

 

 

NUCLEAR ENERGY

         

For a summary of the bottom-line issues (sufficient for our purposes), see Chs. 12-15 in the book-on-the-web…

 

Use the Internet to explore the Yucca Mountain issue to see how close we are to solving one of the three big problems associated with the (eagerly?) anticipated “nuclear industry comeback”. (See, for example, National Geographic, April 2006: “The long shadow of Chernobyl” & “Nuclear power risking a comeback: it’s scary; it’s expensive; it could save the earth”.) Which one is this? (And which ones are the other two?)

 

Extra credit assignment: A bizarre new, hypothetical and “surprising weapon” is described by D.G. McNeil, Jr. in the NYT of 11/25/2006: “If substantial amounts of polonium 210 were used to poison Alexander V. Litvinenko, whoever did it presumably had access to a high-level nuclear laboratory… Polonium 210 does its damage by emitting alpha particles, which have enough energy to tear apart the genetic machinery of cells, killing them outright or causing them to mutate into tumor-producing forms. It gives off 5,000 times more alpha particles than does the same amount of radium.” Show where this number comes from! (The half-lives of Po-210, Ra-223, Ra-224, Ra-226 and Ra-228 are, respectively, 138.4 d, 11.43 d, 3.66 d, 1600 y and 5.76 y. (Note that 1 becquerel = 1 nuclear disintegration per second, and that 1 curie = 3.7x1010 disintegrations/s, equivalent to the decay of 1 g of Ra-226.)

          A follow up: The NYT of 12/03/2006 (“Polonium, $22.50 Plus Tax”, by W. J. Broad) reports that ingestion of 3000 microcuries of Po-210 is a lethal dose. If all of this energy is absorbed in human tissue, how many rems does this correspond to? Does this information agree with that provided in Table 15-5? (For additional information, see this “spec sheet” from the hps.org web site.)

          Any updates on this 21st century James-Bond-type (but non-fictional!) story? (And what does this have to do with the future of nuclear energy in the USA and the world?)

 

Summarize briefly what we mean by nuclear ‘proliferation’ and explore the importance (and the list of signatories) of the nuclear non-proliferation treaty. (And what does this have to do with the future of nuclear energy in the USA and the world?)

 

What is IAEA?

 

Extra credit assignment: How much uranium is available in the world and for how many 1000 MW(e) reactors would that be enough?

 

 

HW3 (due 11/13) : A (the?) major obstacle to the ‘renaissance’ of nuclear energy in the USA is the accumulation of high-level nuclear waste (i.e., spent fuel rods) in places not designed for its storage. With the help of the Internet -- and its powerful search engines and reliable sources of information -- write a well-documented two-page summary of the specific nature and the magnitude of this problem. Attach as many tables and/or graphs as necessary to construct a convincing story, including its relationship to, and attitude toward, the Yucca Mountain project. As a culmination of this “research project”, make a comment about its relationship to the following situation regarding the nation’s coal-fired power plants (see NYT of 10/19/2007).

          -See, for example, “Spent fuel pool” in Wikipedia.

          -Can you find (and can you verify?!) the NRC statement that, “if all the 160,000 spent fuel assemblies currently in storage were assembled in one place, they would only cover a football field about 51/2 yards high”?

          -The readily available graph provided by the NRC on its web site is not really very informative... Is it? In contrast, some years ago USA Today published a detailed inventory of spent fuel rods in EACH one of the hundred or so power plants. Can you find it?

 

 

RENEWABLE ENERGY

          -for a summary of the bottom-line issues, see Chs. 16 and 17 in the book-on-the-web…

          -see also the most recent media reports, e.g., August 2005 and October 2007 issue of National Geographic… In the latter, let’s focus on understanding (and agreeing with?) the key numbers shown for corn ethanol, cane ethanol, biodiesel and cellulosic ethanol.

          -from the more recent media reports, it seems that wind energy has been making important progress… Let’s find out the maximum power of a modern, commercially available wind turbine… And also let’s scrutinize its contribution to the energy supply of the U.S. and the world.

          -How are solar energy companies doing these days? What products are they offering? Can we buy these at Home Depot or Lowes? Is NREL helping?

          -Extra credit: provide an update for Figure 16-9 and comment on the recent hydroelectricity trends in the USA.

 

 

Residential comfort

          -Read Ch. 19 in the book-on-the-web

          -Let’s analyze the consumption in an all-electric home in State College, PA, and use it to understand why a home in Phoenix needs 62 kWh of heat on a typical winter day (see Ch. 17, p. 318, book-on-the-web).

 

 

ELECTRICITY DEMAND

          -Read Ch. 18 in the book-on-the-web, and skim through Chs. 12-15 in preparation for a discussion of nuclear energy issues

          -Be sure to analyze a graph that shows the historical and most recent trends in the use of various energy sources for electricity generation

          -Is IGCC already important? What are its virtues? Any liabilities?

          -Is the use of natural gas important? Is it sustainable?

          -Be sure to understand the difference between capacity (kW) and generation (kWh)

          -Check on the recent status of “demand-side management” of electricity

          -Check on the (increasing?) importance of IPP’s

          -Is deregulation working? Is it progressing (smoothly)?

 

 

HW4 (due 12/6):

(1)   Complete as much as possible the Excel spreadsheet on the virtues and liabilities of the four alternative transportation fuels discussed in the recent National Geographic article.

(2)   Answer the following review questions or investigations in the book-on-the-web:  RQ16-2, RQ16-4, RQ16-5, RQ17-2, RQ17-3, RQ17-4, RQ18-2, RQ18-5, I18-6, I18-11, RQ19-6, RQ19-12, RQ20-1, RQ20-3, RQ21-1, RQ21-2, RQ21-3. 

 

 

In-lieu-of-class activity for 12/4: Watch the movie “The Inconvenient Truth” (on reserve in Pattee Library), prepare a summary of its main arguments and be prepared to discuss it during the last week of class.

 

 

HW5 (due 12/11): See syllabus... If you need help or advice in the selection of ‘appropriate’ or ‘suitable’ media reports, contact me asap!

 

          Group 1: Michael Allegro (msa5029), Ali Ausat (ara154), Gregory Babe (gbb5000), Craig Blowers (cmb5002)

Oral presentation on fossil fuel supply issue(s), including non-fossil alternatives

 

          Group 2: Trinh Desa (tcd5005), Michael Giangiordano (mfg149), Eltahir Gotar (eeg5001), Christopher Justin (cjj5015)

Oral presentation on conventional air pollution issue(s)

 

          Group 3:  Brenton Kemp (bak5024), James Reilly (jrr225), Francis Richey (fwr5002), Amanda Shoup (ars5059)

                   Oral presentation on fossil fuel demand issue(s), including non-fossil alternatives

 

          Group 4: Matthew Simon (mds5101), Ryan Smith (rms5023), Terry White (tkw122), Joseph Zimmerman (jrz5001)

                   Oral presentation on non-conventional air pollution issue (global warming)

 

 

transportation sector

          -Our pride or our “Achilles heel”? Your reactions to “Driving Passion”? (Extra credit essay… on reserve in EMS library.)

          -How is ‘Detroit’ doing these days?

          -Improve (drastically?) CAFE standards?

          -Develop better public transportation? (The Shinkansen solution?)

          -Alternative fuels ‘good’ enough? (Which ones? Short term vs. medium term vs. long term… At $3/gallon of gasoline and $13.90/10^6 BTU of natural gas, which is ‘cheaper’? Is this the only relevant consideration?)

          -How does one find statistical information? (Note that www.aama.com is NOT what it used to be… See p. 423 in the book-on-the-web.)

http://www.bts.gov/publications/national_transportation_statistics/2005/index.html, e.g., Table 1-16… Let’s make a quick graph and analyze its explicit and implicit messages!

          -In its 12/01/2006 issue, the PSU’s Daily Collegian discusses “hydrogen fuel use” for one of State College’s CATA buses. Leslie Small writes that “one kilogram of hydrogen [is] equivalent to 100 gallons of gasoline”. Show that this is true (or untrue?)… If it is true, what are its implications?

 

Top-selling cars in the USA since 1990 (Source: Ward’s Automotive Yearbook and Automotive News):

          1991: Honda Accord (400,000)

          1992: Ford Taurus (410,000)

          1993: Ford Taurus (360,000)

          1994: Ford Taurus (400,000)

          1995: Ford Taurus (370,000)

          1996: Ford Taurus (400,000)

          1997: Toyota Camry (400,000)

          1998: Toyota Camry (430,000)

          1999:

          2000:

          2001:

          2002:

          2003: Toyota Camry (410,000)

          2004:

          2005:

          2006: Toyota Camry (381,570 thru November)

For earlier years see updated Tables 20-1 and 20-2 in the book-on-the-web

 

Top ten U.S. passenger car assembly plants (Source: Ward’s Automotive Yearbook)… See also NYT of 12/05/2006, “As Auto Prosperity Shifts South, Two Towns Offer a Study in Contrasts”.

 

Update for Figures 20-9 and 20-10 in the book-on-the-web (Source: 2005 Ward’s Motor Vehicle Facts & Figures). Are we really importing less Japanese cars? See this graph for a clarification…

 

Update for Figure 20-2...

 

Have diesel-engine cars become more popular in the U.S.? Should they? See these trends

 

What do all these stats tell you (e.g., about the future of U.S. auto industry, the effects of globalization, the future of fuel consumption, the environmental impact)?

 

 

Example of CRITICAL analysis of a media report:

(a)   Select a recent report that expresses a point of view (e.g., advocates some fuel technology ‘policy’).

-“Bringing an energy bill home”, NYT, 12/4/07, p. A34: “... [the] country ... badly needs a rational energy strategy” and “Mr. Bush and Mr. Domenici shoud not stand in the way.”

          (b) Summarize the stated (and the non-stated) PRO’s.

                   -“reduce both America’s dependence on foreign oil and its emissions of the greenhouse gases.”

                   -“first meaningful increase in fuel efficiency standards for cars and light trucks, including SUV’s, in more than 30 years.”

                   -“[t]he bill includes ... a big increase in the production and distribution of advanced forms of ethanol from sources other than corn.”

                   -“[a]nother critical provision ... would require utilities to generate 15 percent of their power by 2020 from a combination of improved efficiency and renewable energy sources.”

          (c) Summarize any (stated?) CON’s.

                   -none stated...

                   -Will incentives for non-corn-based ethanol be designed properly, such that this option will be feasible beyond the lifetime of, say, tax credits?

                   -Will the efficiency increase be sufficient to make a meaningful difference?

                   -etc.

          (d) Express your OWN point of view, based on agreement(s) or disagreement(s) with the authors’ point of view.

Note: In doing (b)-(d), be sure to verify as many stated ‘facts’ and, especially, as many quoted numbers as you can.

          -Can show whether the bill would REALLY “save about 1.1. million barrels of oil per day”?

 

 

ENERGY POLICIES

          -‘micro’ level: What are individuals, households and businesses doing to “save the Planet”?

          -‘macro’-level: What is the nation doing? (See, for example, Energy Policy Act of 2005.) And the world?

Lovins’s Soft Path update (from “Natural Capitalism,” 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)?

Some 10 years ago, my recommendations for the use of fuel technologies were the following (http://www.ems.psu.edu/~radovic/Chapter1.pdf):

 

Should today’s recommendations (wish lists?!) be different? Drastically so?

 

 

Be sure to verify all the posted grades (and absence of grades!)... If you think that in some cases you deserved more (or less?), let’s go over them and discuss them in detail asap!

 

 

Exam 3: 12/18, 8:00-9:50 AM, 167 Willard... practice exam to be posted here.

 

 

LRR3@psu.edu (updated 12/11/2007, 12:30 pm)