type of relationship do these variables have with each other? The variable that we manipulated was the fuel to oxygen ratio and the variable that we observed was how efficiently the fuel burned in each of the mixtures. The efficiency of the combustion depended on the fuel to oxygen ratio. If mixture was fuel lean the combustion reaction would produce less soot and smoke. If the mixture was fuel rich‚ an incomplete combustion reaction occurred and it produced plenty of soot and smoke. The controlled
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developments in polymer electrolyte fuel cells for vehicle applications Kassim Jama* Afiq Latip Erwan Firdaus Kranthi K. Kumpatla Mohamud Mohamed 5 Department of Chemical and Process Engineering‚ University College London Torrington Place‚ London WC1E 7JE‚ United Kingdom 10 Abstract The study of fuel cell systems promise to be a very important topic in the present day as we prepare ourselves in the energy challenges that lay ahead of us in the near future. Fuel cell system is an advanced
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capitalized as Diesel engine) is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel‚ which is injected into the combustion chamber. This is in contrast to spark-ignition engines such as a petrol engine (gasoline engine) or gas engine (using a gaseous fuel as opposed to gasoline)‚ which uses a spark plug to ignite an air-fuel mixture. The engine was developed by Rudolf Diesel in 1893. The diesel engine has the highest thermal efficiency of any regular
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(What will it cost to purchase‚ re-fuel‚ launch‚ educate and distribute?) Benefits. No pollution: A great benefit of using Hydrogen fuel cells is that they give off no pollution‚ and in fact produce pure water as a byproduct. Even though currently engineers are concentrating on producing hydrogen from natural gas‚ it will be for a short-term. Scientists are planning to have renewable environmentally-friendly ways of producing hydrogen in the future. Efficiency: Fuel cells generate electrical power
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Fossil Fuels: Our Society’s Dependency Natural Resources Report by Sean Falconer Chemistry 122 Mr. Hart 1997-02-07 Our society has become dependent on fossil fuels for energy. That seems fine for now considering the fact that everyone is generally happy in the present situation. Fossil fuels are relatively inexpensive and seem to be doing the trick right now. Using fossil fuels arise such issues as global warming‚ rising costs of scarce resources‚ and shortages of raw materials. None
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America runs on fossil fuels. Automobiles‚ trains‚ airplanes and most‚ or all‚ transportation methods depend on these fossil fuels. Electric power is also derived‚ primarily‚ from fossil fuels. Americans derive 39% of their power from coal‚ 27% from natural gas and 19% from nuclear power (“U.S. Energy Information Administration - EIA - Independent Statistics and Analysis”). However‚ fossil fuels are quickly running out‚ as they are a nonrenewable resource. Scientists predict coal resources will run
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Throughout most of history‚ the amount of waste generated by humans was insignificant due to low population density and low societal levels of the exploitation of natural resources. Common waste produced during premodern times was mainly ashes and human biodegradable waste‚ and these were released back into the ground locally‚ with minimum environmental impact. Tools made out of wood or metal were generally reused or passed down through the generations. However‚ some civilizations do seem to have
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Impact of Fuel Price Deregulation in India Introduction Empowered group of Ministers on Friday‚ 25th June 2010‚ took a decision to decontrol the petrol prices increasing it by 3.50 per litre & that of kerosene by Rs 3 a litre. While petrol is mainly used by the middle class for cars‚ kerosene is used by the poor for power. Diesel prices rose by Rs 2 per litre and might be freed up in the future. Cooking gas prices were raised by Rs 35 a cylinder. Govt. has indeed taken a bold step by deciding
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Essay: Role of youth in promoting oil conservation Youths are the people who are most flexible and able to learn. Young people can learn habits that are less dependent on fuel than the habits we older people have. Young people‚ then‚ can grow up with better habits and make conservation of oil something that is just normal for everyone. This is why youth has a major role in promoting oil conservation. The first rule of fuel conservation would be to travel judiciously and curtail wasteful driving
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Oil And Gas Conservation Oil and gas conservation effects your daily life in several ways: 1) As you conserve you own consumption of oil and gas‚ your fuel bills are reduced 2) Oil and gas conservation tends to reduce demand for oil and gas and this‚ in turn‚ tends to lower the price of fuels and products made from oil and gas (like plastics) to the consumer. 3) Conservation of oil and gas usually also means less burning of them as fuels‚ which‚ in turn reduces the amount of pollutants
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