What is a device that generates energy by way of chemical reaction? Or how about a device that can generate or produce a tiny amount of direct current electricity? Better yet a device that produces this tiny amount of DC electricity with creating little to no pollution? That one simple device is referring to a fuel cell.
The book definition of a fuel cell is a “device that generates electricity by a chemical reaction”(#1). The purpose of using a fuel cell is to create an electrical current that can be directed outside the cell to do various types of work. Some examples of work that a fuel cell may be used for may include; powering an electric motor or lighting up a light bulb. In order for a fuel cell to complete these tasks, each fuel cell needs two electrodes known as an anode and a cathode. These electrodes are important to the fuel cells because this is where the chemical reaction takes place to produce the electricity. In addition to the electrodes, each fuel cell contains electrolyte. The electrolyte “carries electrically charged particles from one electrode to the other, and a catalyst, which speeds the reactions at the electrodes.”(#1) Even though the anode, cathode, and electrolyte are all an important part of a fuel cell, a fuel cell needs some type of fuel to operate. There are many various types of fuels that can run or power a fuel cell. There are basically four primary fuel types that a fuel cell may use. The primary fuel types include; “Hydrogen, carbon monoxide, methanol, and dilute light hydrocarbons like methane, depending upon the fuel cell type.” (#3) For example, in an Alkali fuel cell it requires the use of pure hydrogen fuel. (#1) An example where you may see carbon monoxide operating a fuel cell may be in a high temperature fuel cells, such as a Solid Oxide Fuel cells (SOFC) or Molten Carbonate Fuel cells (MCFC)(#3). The use of methanol fuel would be found in a direct methanol fuel cell (DMFC)(#3). However even though there are a variety of fuel cells, there are many conflicts that are involved within holding back the usage of fuel cells. A big issue is the flexibility of fuels that can operate fuel cells. Take hydrogen for instance, even though it’s “ the most abundant element in the universe” (#2) it “must be cultivated from other molecules”(#2). In addition, “free hydrogen is volatile and
Research & Technology GE 2021 *01 Professor Jesus Diaz Thursday, May 2nd, 2013 The Greatest NBA player of all time By: Christen Lamb It quite possibly may be the greatest controversy/ discussion in sports history. Many have their sole opinions, some may share statistics as facts. Who's the greatest? Magic Johnson or Larry Bird? Wilt or Kareem? Kobe Bryant vs. Michael Jordan, the debate will forever be discussed; even years after our days are numbered…
fossil fuels such as coal, oil and natural gas. Normally electricity is converted through a two step process. Fuels are burnt converting chemical energy to heat. The heat is then transformed into electricity by generating steam to turn turbines. This is a highly inefficient method which requires a development of another more efficient method of producing electricity. In addition, fossil fuels are non – renewable energy resources. They are limited and will eventually run out. Fossil fuel cells produce…
Hydrogen Fuel Cell Energy Hydrogen fuel cell energy is a form of energy that has great potential, but is more or less of a running joke to the science community. Practical applications like a hydrogen fuel cell car will always be the marvel of the next decade, or maybe the decade after that... Hydrogen fuel cell cars are no emissions vehicles. But it is tricky to harvest the energy of hydrogen fuel cell vehicles. Hydrogen is an energy carrier, not a source. The energy has to harvested by adding…
Advantages of a Hydrogen Fuel Cell 1. It can be a renewable source of electricity if the hydrogen comes from a renewable resource. See the advantages of hydrogen as a fuel. 2. It does not produce pollution or contribute to global warming because the only product is water. Advantages of a Hydrogen Fuel Cell 1. It can be a renewable source of electricity if the hydrogen comes from a renewable resource. See the advantages of hydrogen as a fuel. 2. It does not produce pollution or contribute…
22 February 2013 Hydrogen Fuel Cells: Impacting More Than Just Cars Gas prices continue to increase and current alternatives are either ineffective or more costly; however, hydrogen fuel cells, when used in vehicles, have the potential to replace gasoline as a fuel source. One of the main benefits of vehicles powered by hydrogen fuel cells is that they would bolster the United States economy. As well as strengthening the economy, hydrogen fuel cell vehicles would greatly reduce the amount of pollution…
It can be stationary power or a portable power. 2.4 Challenges Following are the challenges that a fuel cell faces today: Cost: Cost of a fuel cell is a major concern right now. Due to expensive materials like platinum is used as a catalyst, the cost of fuel cell shoots up. but the research is on and it is most likely that the cost of a fuel cell will come down to $30 - $50/KW for transportation and $1500/KW for stationery power. Storage: Storage of hydrogen is again…
hydrogen is that its highly flamable. Hydrogen itself is a very powerful source of fuel. we all jnow the effects of hydrogen bomb that was dropped on hiroshima and nagasaki in japan. its highly flamable and always in news for the risks associated with it. Finally, there can be some challenges using hydrogen as an Alternative Fuel. Some examples are: this fuel is only available in some locations (mostly California). Fuel cell vehicles, which run on hydrogen, are currently more expensive than conventional…
Bio- diesel is another potential fuel replacement for our oil dependency. This alternative has proven to be efficient and replaceable to gas but lakes the sponsorship and publicity it needs to take off within our American culture. "Biodiesel is a domestically produced, renewable fuel that can be manufactured from vegetable oils, animal fats, or recycled restaurant greases. Biodiesel is safe, biodegradable…
Cho Oyu (8201m) in the Himalayas when he become 85. He has always tried to push the boundaries himself. Japan record highest Carbon dioxide emission The last year, Japanese carbon dioxide emission record high. One of the reason is depend on fossil fuels following the nuclear power plant in Fukushima prefecture was damaged with the earthquake that happened on March 2011. Japanese carbon dioxide emissions reached 1224 million tons. It means that increased to 9% in compare with 2010 which is before…
PESTEL Analysis PESTEL analysis stands for "Political, Economic, Social, Technological, Environmental, and Legal analysis" and describes a framework of macro-environmental factors used in the environmental scanning component of strategic management. Political The mobile phone industry used to be a monopoly held by BT; however this was de-regulated in 1984 due to the telecommunications act. The current industry regulator is the telecomm regulator Ofcom. This was created to allow there to…