KendomBlog
Tuesday, March 29, 2011
Nuclear Power Planning
I have a lot of personal experience with making presentations on the computer and powerpoints.
Project Four Planning
As for teams we could form groups for each location researched that uses nuclear power. That way each group contributes to research, writing, and formatting and not one group does more work than another. Making a full-length, quality video that encompasses everything we find through our research takes a long time and limits the amount of people that can contribute to the video-making process, so I feel a PowerPoint would be more reachable. Each group would compose their own set of slides to put into the PowerPoint, which would make presenting the slides easier since each person would already have a part that they created to present. The PowerPoint could be supplemented by smaller video clips and voice-overs to keep the presentation interesting.
Project Four Planning
Monday, March 28, 2011
Project Four
As for the form our presentation should take, a powerpoint would probably be easier to construct. The only problem faced with this avenue though is how un-personable it is. Nuclear Power is a problem (or solution) that affects the lives of millions of people, whether directly or indirectly, and should be addressed as much a "human" issue as an "economic" one. A powerpoint may be a good base for our presentation, but the incorporation of either video or recorded voice would put that "human" touch on the issue, and help us better connect with the audience. I'm sure everyone here has had to sit through a long powerpoint, you lose interest rather quickly, especially with topics so involved as Nuclear Power. The incorporation of visuals and different human voices would mix up the presentation, keeping the pace moving and the audience attent to what will happen next. We should even consider including a few surprises for the audience, little tidbits that aren't normally seen in such a presentation. Leaving a mark in their minds and letting the issue really penetrate their thoughts, even if briefly.
Those are just my thoughts on the topic. What will really emerge is yet to be perceived, but will be organic indeed, as is the nature of a group project. Which is ironic considering how un-natural nuclear power can be perceived, the un-obtainable attempt to control (and manipulate) an ever-changing planet.
Project Four - Planning
Given the complexity of the chosen subject, it could be beneficial to have certain teams focusing on different parts of the discussion. One of these teams could be focusing on explaining and finding videos and diagrams explaining in a comprehensive, yet concise manner how a nuclear power plant works and how the fission occurs. Providing a good background to the subject helps the presenters, the class, to better understand the topic. It also helps the audience forming a more knowledgeable view of what nuclear power is. Without fully grasping the methodology of nuclear power, one cannot form good arguments for or against this energy form. By studying how nuclear power works one can examine both the benefits, seeing the enormous amount of energy released by the fission, and the negative consequences of maintaining the reaction and treating the fission products.
Other teams that would be beneficial to discussing the topic of nuclear power is to have one group researching arguments for and another team researching arguments against nuclear power. The team investigating benefits could examine in greater detail how much energy potential there is and the improvements in security standards for the reaction facility and the storage space for the radioactive material. The team could also be addressing the renewability and recyclability of nuclear power in comparison to other energy sources such as oil. Furthermore, the reliability is another aspect to consider in contrast to wind- or solar power.
The team examining the hazardous consequences of nuclear power could be focusing on the danger in treating and storing the radioactive fission products following the reaction. There is much risk involved in working with nuclear power, arguably a too great risk. One must consider both internal and external threats concerning this type of energy. The internal risks are for instance safety issues and machinery malfunctions. An example of this is the case of Chernobyl. The external risks associated with nuclear power regard the environment, where hurricanes and earthquakes might impact the safety of the facility. An example of this is the recent occurrence in Japan. Other arguments against nuclear power could be human safety and how the location of nuclear power plants may affect surrounding cities and biological habitats.
With teams focusing on these areas, the class can form good arguments, being aware of the counterarguments, and showing ethos by having substantial knowledge of the subject. This could also help the professor distinguish the participation of the students on the project.
By Emilia Gyoerk
Sunday, March 27, 2011
Project Four Research
Project 4 Research
The big scare that comes with Nuclear Power is the business with radioactive materials being produced. Everyone knows that radiation is bad, but what does anyone really know about it? For instance, the typical person is exposed to 15,000 particles of radiation every second from natural sources. Now think about a medical X-ray; just one involves striking the user with about 100 billion. This number seems like quite a jump, which means that it's dangerous, right? To some extent, yes, but one must consider that the probability of one particle of radiation to cause cancer or a genetic disease is one in 30 million billion (that's 18 zeros).
A Nuclear Power Plant produces "radioactive" materials which are products that actively emit radiation. Humans may come into contact with this radiation through small energy releases during routine operation, accidents in plants, accidents transporting, and from waste systems. Now consider taking all of the radiation from every nuclear power plant accident, release, or other problem. This accounts for only 0.2% of the natural radiation that a human will be exposed to in his lifetime. Since natural radiation causes about 1% of all cancer, nuclear radiation only raises a person's risk of developing cancer by 0.002%, reducing a life expectancy by less than one hour.
(The above information is a summary of what is found at http://www.physics.isu.edu/radinf/np-risk.htm)
Next, let's consider the radiation that other sources of power emit, for instance: coal. Coal plants have been used in America since the 1880s, when workers had to shovel wood and coal into furnaces by hand to produce steam energy. New technologies have built upon a pulverized coal firing system in order to keep a more uniform temperature and efficient energy production. However, coal plants are responsible for emitting carbon dioxide (greenhouse emissions), sulfur, and nitrogen oxides (which both cause acid rain). A study in 1978 by J.P. McBride tested the amount of uranium and thorium content from Tennessee and Alabama coal plants and compared it to the exposure levels around boiling-water reactor and pressurized-water nuclear power plants. The results showed that the amount of radiation ingested in people living near coal plants was higher than those living around nuclear power plants. (http://www.scientificamerican.com/article.cfm?id=coal-ash-is-more-radioactive-than-nuclear-waste)
But everyone knows coal is dirty, and it's going out of fashion anyway; what about gasoline? Simply put, the amount of power generated from a nuclear power plant is equal to that of 150 billion gallons of gasoline. Also, fossil fuels are becoming more and more expensive as their supply gradually dwindles. Fossil fuels cannot be created. They are formed from organic waste stored for over millions of years very far underground. Countries in the Middle East are known for their oil resources, but recent unrest has driven up prices. Then comes in the topic of off-shore drilling so that the rest of the world can break the monopoly in the Middle East, but with accidents such as the BP oil spill, not many people are in favor of this option.
So what’s the fuss with Nuclear Power? Why are so many people scared of it? Oh, they probably heard about Three Mile Island, Chernobyl, and most recently the meltdown in Japan. But how many fatalities does that leave on the Nuclear side of the energy debate? Here is a graph from world-nuclear.org summarizing the severe accidents in energy chains for electricity:
Summary of severe* accidents in energy chains for electricity 1969-2000
| OECD |
| Non-OECD |
|
Energy chain | Fatalities | Fatalities/TWy | Fatalities | Fatalities/TWy |
| Coal | 2259 | 157 | 18,000 | 597 |
| Natural gas | 1043 | 85 | 1000 | 111 |
| Hydro | 14 | 3 | 30,000 | 10,285 |
| Nuclear | 0 | 0 | 31 | 48 |
Data from Paul Scherrer Institut, in OECD 2010. * severe = more than 5 fatalities
And a chart comparing the accident statistics in primary energy production:
Comparison of accident statistics in primary energy production
(Electricity generation accounts for about 40% of total primary energy)
Fuel | Immediate fatalities 1970-92 | Who? | Normalised to deaths per TWy* electricity |
| Coal | 6400 | workers | 342 |
| Natural gas | 1200 | workers & public | 85 |
| Hydro | 4000 | public | 883 |
| Nuclear | 31 | workers | 8 |
* Basis: per million MWe operating for one year, not including plant construction, based on historic data which is unlikely to represent current safety levels in any of the industries concerned.
“Japan depends on nuclear power for about 30 percent of its electricity, second only to the United States and France. Until now, the threat of a nuclear reactor meltdown has been an abstract gamble that most Japanese citizens, politicians and business leaders have been willing to take.”
As with every new technology, there are risks along with the benefits. The crisis in Japan has done well in reminding the world of this and one can only hope for the safety of that country. But to deny them the right to nuclear power simply because the country is known for earthquakes is essentially calling the Japanese people stupid. Technology is growing and it’s every country’s right to decide on which utilities to make use of. I suppose it’s up to every individual to develop his own opinions on the situation.
