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Fossil fuel alternative
Eassy on alternatives of fuel
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Hydrogen Fuel Cells Vs. Gasoline: Who’s Down With HFC?
ABSTRACT:
The world’s oil supply is a diminishing nonrenewable resource. Soon, a new fuel for
automobiles will be needed. Hydrogen fuel cells may very well become the chief replacement for
gasoline in our society.
INTRODUCTION:
In our busy world today, we often find ourselves surrounded by vehicles. But how often
do we ponder about by which means these vehicles are running? Vehicles are fueled by gasoline,
a gradually diminishing resource. As a replacement for this fuel, scientists have been
experimenting with a new technology called hydrogen fuel cells.
Swiss scientist Christian Friedrich Schönbein developed the principle behind the fuel cell
in 1838. Then in 1932, the first successful fuel cells were engineered by Francis Thomas Bacon
of Britain. The main type of hydrogen fuel cell is the Polymer Electrolyte Membrane, or Proton
Exchange Membrane (PEM). In a PEM, electrons are separated from hydrogen atoms (at the
anode), forming positively charged hydrogen atoms, or protons, and single electrons. Then the
protons are drawn toward the oxygen atoms (at the cathode) on the other side of the membrane,
where the electrons are forced to travel an alternate route to reach the hydrogen and oxygen. By
traveling this alternate route, the electrons form a current, ergo energy. Once the protons and
electrons meet with the oxygen, the byproducts created are water, heat, and some impurities
(depending on the purity of the applied hydrogen). See Diagram 1 below (How PEM Fuel Cells
Work).
HFC 2
Which fuel supply is more efficient: hydrogen fuel cells or gasoline? To help reach a
verdict, we will be comparing their availability, cost and efficiency, and pollution pot...
... middle of paper ...
...en Fuel: a Clean and Secure Energy Future, The White House,
Retrieved August 2, 2005, from
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2. Fuel Cell, July 31, 2005, Wikipedia: The Free Encyclopedia, Retrieved August 2, 2005,
from http://en.wikipedia.org/wiki/Fuel_cell
3. How PEM Fuel Cells Work, Retrieved July 21, 2005, from
http://www.fueleconomy.gov/feg/fcv_PEM.shtml
4. Hydrogen, Fuel Cells and Infrastructure Technologies Program, U.S. Department of
Energy: Energy Efficiency and Renewable Energy, Retrieved July 21, 2005, from
http://www.eere.energy.gov/hydrogenandfuelcells/
5. Hydrogen Production and Delivery, National Renewable Energy Laboratory, Retrieved
July 21, 2005, from http://www.nrel.gov/hydrogen/proj_production_delivery.html
6. Tokyo Gas, Retrieved August 2, 2005, from http://www.tokyogas.
co.jp/pefc_e/image_add/wh-46_01.gif
The pump exchanges three sodium molecules for two potassium molecules. In doing so an electrical gradient is formed across the basolateral membrane of the cell due to the imbalance of charge generated. The interior of the cell is negative by about 80mV in relation to the outside...
U.S. energy dependence is higher today than it was during the oil shock of the 1970's, and oil imports are projected to increase. Passenger vehicles alone consume 6 million barrels of oil every single day. If just 20 percent of cars used full cells, we could cut oil imports by 1.5 million barrels every day. 10,000 fuel cell vehicles running on non-petroleum fuel would reduce oil consumption by 6.98 million gallons a year.
The energy for passive transport comes entirely from the kinetic energy that the molecules have. The simplest type of passive transport is diffusion, which is the movement of molecules from an area of high concentration to an area of lower concentration. Diffusion moves down the concentration gradient, which is the difference in the concentration of molecules across a space. The direction of osmosis depends on the relative concentration of the solutes on the two sides.
Automobiles play an essential role in American society. As if being the major means of transportation was not impressive enough, automotives can be seen on T.V., in movies, in magazines, and can sometimes be indicative of a person’s wealth and social status. On average, Americans drive nearly 40 miles and drive for just over 50 minutes driving per person per day (http://www.bts.gov). That means a person spends roughly one-sixteenth of a day driving. It would make sense, then, to make such an essential part of society as efficient, cost effective, and clean as possible. However, that is not the case. As the years have passed cars have actually begun to move away from efficiency. Hawken writes, “[The automobile] design process has made cars ever heavier, more complex, and usually costlier. These are all unmistakable signs that automaking has beco...
Hydrogen lies in one of the copious replacements for gasoline. It is not an energy source such as oil, but an energy carrier that is produced instead of digging and finding it underground. Though replacing fossil fuels by hydrogen fuel cell is very hard and costs a great deal, for the most part, hydrogen fuel cell is a zero carbon emission fuel which highly reduces the carbon emissions that causes pandemic global warming. Hydrogen is very helpful for nature by cause of replacing fossil fuels with hydrogen fuel cells might end global warming once and for all.
When a positive and a negative electrode are placed in a solution containing ions, and an electric potential is applied to the electrodes, the positively charged ions move towards the negative electrode, and the negatively charged ions to the positive electrode. As a result, an electric current flows between the electrodes. The strength of the current depends on the electric potential between the electrodes and the concentration of ions in the solution. Ionization is the formation of electrically charges atoms or molecules.
B: Economic , Planning & Policy, 2(3), 287-295. Eisenstien, P. (2000). Fuel cells get h2
In the article,"Energy Story", it tells you all about basic energy and how scientists found out how it works. It tells you about each part of an electron and what part is what. The center is called the Nucleus. Electrons and atoms move together to create what is known as electricity. Atoms and electrons flow through an object
Cars are a fantastic invention. They make our lives even more carefree by getting us from place to place quickly while eradicating the need for legs altogether. There is no doubt that the benefits of driving from place to place are numerous. However, driving takes a whole lot of fuel, and everyone knows that fuel for cars isn’t the most plentiful (or cheapest!) of resources.
Early electric vehicles may have appeared as early as 1830. Scottish inventor Robert Davidson constructed the world's first prototype electric vehicle in 1837, but historians generally credit J.K. Starley, an English inventor, and Fred M. Kimball of Boston with building the first practical electric cars in 1888. Later in the in the decade, William Morrison of Des Moines, Iowa, constructed his version of the electric vehicle in 1891. His vehicle required 24 storage battery cells, took 10 hours to charge, and could run for 13 hours. It could carry up to 12 people and had a 4-horsepower motor. His car could reach speeds up to 14 miles per hour. Morrison, however, never mass-produced his vehicle. The first commercially produced electric vehicle was the Electrobat. It was manufactured by Philadelphia-based Morris and Salom Company. In 1896, the Woods Motor Vehicle Company of Chicago became the first American manufacturer of electric cars.
. Also, high temperature prevents the electrodes from reacting with carbon monoxide which eventually could lead to corrosion [Fuel Cell ...
people find noisy vehicles a great disturbance to have around the streets. If there is something
In an age where our dependence on fossil fuels and other expendable resources is dramatically increasing as our supply is decreasing, it is imperative that new forms of energy arise. Although it is still in very early stages, it is fundamentally plausible that hydrogen could become a major fuel source in cars. For example, Honda has already released five hydrogen fuel cell cars.
Hydrogen would be one of the easiest sources of renewable energy to incorporate into our current energy infrastructure. Since hydrogen is a gas of normal temperature, it is possible to have it be used as a fuel in vehicles similar to current ones. For example, Hydrogen could be introduced into the vehicle as a gas, stored...
Hart, David. " Hydrogen: A Truly Sustainable Transport Fuel?" Frontiers in Ecology and the Environment 1.3 (2003): 138-45. Web. Kühne, Reinhart. "