The automobile industry has been finding ways to increase gas mileage.
-Choosing a more fuel efficient vehicle will help the fuel economy.
-Keeping your car in shape will help as well. Fixing up the car can improve its gas mileage by an average of 4 percent and fixing a major maintenance problem can improve your mileage up to 40 percent.
-Keeping tires inflated at the right pressure also improves gas mileage by 3.3 percent.
-Aggressive braking and accelerating can lower the gas mileage by 33 percent at highway speeds and by 5 percent around town.

There are some ways for drivers to increase their gas mileage:

1. Installing new spark plugs – can make your vehicle perform better.
2. Choosing your routes – avoid traffic lights if possible and shortest routes does not mean more fuel efficient if many traffic lights are around it.
3. Drive smoothly – sudden starts and stops hinder fuel economy.

Sources:

1. http://www.belmondnews.com/ara/automotive/a65572c0-a079-5df0-ac02-a29afd2915ca.txt
2. http://www.fueleconomy.gov/feg/drive.shtml
3. http://www.nytimes.com/2011/07/29/business/carmakers-back-strict-new-rules-for-gas-mileage.html?pagewanted=all&_r=0

Objective: The objective of this lab is to compare the distance traveled  between using a ruler and using the LearnSmart program on the computer.

Measurements:
Diameter = .055 m
Circumference = 0.1728 m

Questions:
a) The wheel rotation (in degrees and in number of turns). How are the degrees that the wheel rotated related to the number of turns of the wheel?
b) The time it took for the wheels to turn (in seconds and milliseconds).  How are seconds related to milliseconds?
c) The distance the car moved.  How is the distance related to the number of turns?

Answers:
a) When the wheel rotates 360°, the wheel will rotate 1 time.
b) In 1 second or 1000 millisecond, the wheel rotated 546° or 1.516 times at a power level of 75, 75. At a power level of 50, 50, the wheel rotated .966 times in 1 second and at 25, 25, the wheel rotated .377 times in 1 second.
c) The circumference is the distance when the wheel turns once. C = .1728 m = 1 wheel turn.

The nuclear incident in Fukushima has led the Germans to reconsider their nuclear-generated energy. Their decision is to phase out nuclear-generated energy by the end of 2022 and increase the use of renewable energy.

Since 2010, Germany is aiming to increase the use of renewable energy:

• 2010 – 17 percent
• 2011 – 20 percent
• 2020 – at least 35 percent
• 2030 – at least 50 percent
• 2040 – at least 60 percent
• 2050 – at least 80 percent

This plan will reduce the greenhouse gas emissions by 40 percent in 2020 and about 95 percent in 2050.

The German Federal Parliament has revised the Renewable Energy Sources Act (EEG) in order for the Germans to start their plan. The revised act is scheduled to come into action on January 1, 2012.

Hydropower renewable energy resources:

• Wave power
• Tidal power
• Salt gradient and flow energy
• Wind energy
• Solar radiation
• Biomass

The major renewable energy of the future is the offshore winds but could have a large demand for onshore wind parks.

The EEG promises that the renewable sources will be fed to the public grids at a reasonable price.

Tariff Comparison For Selected Renewable Energy Sources

of EEG 2009 and EEG 2012

Sources:

http://www.mayerbrown.com/publications/detail.aspx?publication=4738

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