Fuel - Revision history

Red marquis at 20:58, 22 August 2009

2009-08-22T20:58:14Z

← Older revision		Revision as of 20:58, 22 August 2009
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	Fuel stores energy in its chemical structure. When the chemical structure of the fuel changes, this chemical energy is converted into other forms and released. There are many ways to express and compare the amounts of energy stored in fuel. For example, a fuel value is used to quantify fuel's potential energy.		Fuel stores energy in its chemical structure. When the chemical structure of the fuel changes, this chemical energy is converted into other forms and released. There are many ways to express and compare the amounts of energy stored in fuel. For example, a fuel value is used to quantify fuel's potential energy.

	All carbon-based life forms—from microrganisms to animals and humans—depend on and use fuels as their source of energy. Their bodies posess a natural mechanism called ''metabolism'' to convert energy stored in food. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond energy needs of a human body. The application of energy released from fuels ranges from [[heat]] to cooking and from powering weapons to propulsion and generation of electricity. The method of conversion used for a particular type of fuel depends on the molecular structure of the fuel. For example, the most efficient method for releasing energy from fossil fuels is by burning them in oxygen. In this process known as ''combustion'', fuel reacts with oxygen and releases energy as heat. Humans have also mastered to extract energy from an atom by subjecting fissile materials to nuclear reaction.		All carbon-based life forms—from microrganisms to animals and humans—depend on and use fuels as their source of energy. Their bodies posess a natural mechanism called ''metabolism'' to convert energy stored in food. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond energy needs of a human body. The application of energy released from fuels ranges from heat to cooking and from powering weapons to propulsion and generation of electricity. The method of conversion used for a particular type of fuel depends on the molecular structure of the fuel. For example, the most efficient method for releasing energy from fossil fuels is by burning them in oxygen. In this process known as ''combustion'', fuel reacts with oxygen and releases energy as heat. Humans have also mastered to extract energy from an atom by subjecting fissile materials to nuclear reaction.

	==Types of fuel==		==Types of fuel==
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	====Solid fuels====		====Solid fuels====
	~~[[Image:Coal.jpg\|300px\|thumb\|Lump of coal.]]~~
	Solid fuels include coal, wood and peat. All these types of fuel are combustible (they create fire and heat). Coal was burnt by steam railtrains to heat water into steam to move parts and provide power. Peat and wood are mainly used for domestic and industrial heating, though peat has been used for power generation, and wood-burning steam locomotives were common in times past. Steam power is becoming more and more desirable as oil and gas supplies begin to run out, given the wide number of possible things that can ~~[[combustion\|~~burn]] to heat water.		Solid fuels include coal, wood and peat. All these types of fuel are combustible (they create fire and heat). Coal was burnt by steam railtrains to heat water into steam to move parts and provide power. Peat and wood are mainly used for domestic and industrial heating, though peat has been used for power generation, and wood-burning steam locomotives were common in times past. Steam power is becoming more and more desirable as oil and gas supplies begin to run out, given the wide number of possible things that can burn to heat water.

	====Liquid and gaseous fuels====		====Liquid and gaseous fuels====
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	===Nuclear fuel===		===Nuclear fuel===

	In a ~~nuclear reactor\|~~nuclear reaction a radioactive fuel will undergo ~~[[nuclear fission\|~~fission]]. This provides a useful source of [[energy]] without combustion. Also, in ~~[[star]]s~~ (and our sun), [[hydrogen]] (a gas) is the fuel for the [[nuclear fusion]].		In a nuclear reaction a radioactive fuel will undergo fission. This provides a useful source of energy without combustion. Also, in stars (and our sun), hydrogen (a gas) is the fuel for the nuclear fusion.

	===Other types of fuel===		===Other types of fuel===

	~~[[Image:hydrogengas.jpg\|frame\|Hydrogen Gas in a Flask (it is colourless).]]~~		Hydrogen also features as an upcoming fuel for automobiles with Oxygen in the [[Fuel Cell]]. This involves a reaction where the hydrogen and oxygen react to produce water (H<sub>2</sub>O) and electrical energy, however most of the energy comes from turning hydrogen into electrons which is electricity and protons using platinum as a catalyst, which, then can supply an electrical motor in order to run a car (or a variety of other uses). In this reaction the chemical energy of the chemicals is converted into electrical energy due to redox.
	[[Hydrogen]] also features as an upcoming fuel for automobiles with [[Oxygen]] in the [[Fuel Cell]]. This involves a reaction where the hydrogen and oxygen react to produce water (H<sub>2</sub>O) and electrical energy, however most of the energy comes from turning hydrogen into electrons which is electricity and protons using platinum as a catalyst, which, then can supply an electrical motor in order to run a car (or a variety of other uses). In this reaction the [[chemical energy]] of the chemicals is converted into [[electrical energy]] due to [[redox]].

	[[Biofuel]] can be made from [[Biomass]], and can create [[Alcohol fuel]] and [[Biodiesel]]. The [[biomass]] is plant matter from plants such as [[hemp]], [[maize]], and [[sugarcane]].		[[Biofuel]] can be made from Biomass, and can create [[Alcohol fuel]] and [[Biodiesel]]. The biomass is plant matter from plants such as hemp, maize, and sugarcane.

	==See also==		==See also==
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	*[[Liquid fuels]]		*[[Liquid fuels]]
	*[[Gas fuel]]		*[[Gas fuel]]
	*[[Biomass]]
	*[[Biofuel]]		*[[Biofuel]]
	*[[Fuel oil]]		*[[Fuel oil]]

Mckinneym: /* See also */

2006-07-17T13:00:14Z

Mckinneym: /* See also */

2006-07-17T12:59:48Z

Mckinneym at 12:54, 17 July 2006

2006-07-17T12:54:32Z

New page

'''Fuel''' is any material that is capable of releasing energy when its chemical structure is changed or converted.

In chemistry and the field of fire safety, anything that is capable of combustion is called ''fuel''.

==Extraction of energy from fuel==

Fuel stores energy in its chemical structure. When the chemical structure of the fuel changes, this chemical energy is converted into other forms and released. There are many ways to express and compare the amounts of energy stored in fuel. For example, a fuel value is used to quantify fuel's potential energy.

All carbon-based life forms—from microrganisms to animals and humans—depend on and use fuels as their source of energy. Their bodies posess a natural mechanism called ''metabolism'' to convert energy stored in food. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond energy needs of a human body. The application of energy released from fuels ranges from [[heat]] to cooking and from powering weapons to propulsion and generation of electricity. The method of conversion used for a particular type of fuel depends on the molecular structure of the fuel. For example, the most efficient method for releasing energy from fossil fuels is by burning them in oxygen. In this process known as ''combustion'', fuel reacts with oxygen and releases energy as heat. Humans have also mastered to extract energy from an atom by subjecting fissile materials to nuclear reaction.

==Types of fuel==
Theoretically any fuel can be used as a source of energy. However, it is economically practical to use only those fuels that contain large amounts of easily extractable energy. Luckily, there are many different types of fuel that can be obtained and prepared for consumption relatively inexpensively.

====Solid fuels====
[[Image:Coal.jpg|300px|thumb|Lump of coal.]]
Solid fuels include coal, wood and peat. All these types of fuel are combustible (they create fire and heat). Coal was burnt by steam railtrains to heat water into steam to move parts and provide power. Peat and wood are mainly used for domestic and industrial heating, though peat has been used for power generation, and wood-burning steam locomotives were common in times past. Steam power is becoming more and more desirable as oil and gas supplies begin to run out, given the wide number of possible things that can [[combustion|burn]] to heat water.

====Liquid and gaseous fuels====

Non-solid fuels include alkanes such as petroleum and gasoline (both fuel types have myriad varieties including petrol (gasoline) and natural gas. The former is widely used in the [[internal combustion engine]] while both are used in power generation.

===Nuclear fuel===

In a nuclear reactor|nuclear reaction a radioactive fuel will undergo [[nuclear fission|fission]]. This provides a useful source of [[energy]] without combustion. Also, in [[star]]s (and our sun), [[hydrogen]] (a gas) is the fuel for the [[nuclear fusion]].

===Other types of fuel===

[[Image:hydrogengas.jpg|frame|Hydrogen Gas in a Flask (it is colourless).]]
[[Hydrogen]] also features as an upcoming fuel for automobiles with [[Oxygen]] in the [[Fuel Cell]]. This involves a reaction where the hydrogen and oxygen react to produce water (H<sub>2</sub>O) and electrical energy, however most of the energy comes from turning hydrogen into electrons which is electricity and protons using platinum as a catalyst, which, then can supply an electrical motor in order to run a car (or a variety of other uses). In this reaction the [[chemical energy]] of the chemicals is converted into [[electrical energy]] due to [[redox]].

[[Biofuel]] can be made from [[Biomass]], and can create [[Alcohol fuel]] and [[Biodiesel]]. The [[biomass]] is plant matter from plants such as [[hemp]], [[maize]], and [[sugarcane]].

==See also==
*[[List of energy topics]]
*[[Alternative fuels]]
*[[Solid fuel]]
*[[Liquid fuels]]
*[[Gas fuel]]
*[[Alcohol fuel]]
*[[Biomass]]
*[[Biofuel]]
*[[Fuel oil]]
*[[Fossil fuel]]
*[[Propellant]]
*[[Combustion]]

==External links==
* [http://www.southerngrease.com Alternative Fuels - Beginner's tutorial on using alternative fuels in a diesel engine]

← Older revision		Revision as of 13:00, 17 July 2006
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	==See also==		==See also==
	*[[Alternative ~~fuel vehicles~~]]		*[[Alternative Fuel Vehicles]]
	*[[Flexible ~~fuel vehicles~~]]		*[[Flexible Fuel Vehicles]]
	*[[Liquid fuels]]		*[[Liquid fuels]]
	*[[Gas fuel]]		*[[Gas fuel]]

← Older revision		Revision as of 12:59, 17 July 2006
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	==See also==		==See also==
	*[[List of energy topics]]		*[[Alternative fuel vehicles]]
	*[[Alternative ~~fuels~~]]		*[[Flexible fuel vehicles]]
	*[[~~Solid~~ fuel]]
	*[[Liquid fuels]]		*[[Liquid fuels]]
	*[[Gas fuel]]		*[[Gas fuel]]
	*[[Alcohol fuel]]
	*[[Biomass]]		*[[Biomass]]
	*[[Biofuel]]		*[[Biofuel]]
	*[[Fuel oil]]		*[[Fuel oil]]
	*[[Fossil fuel]]		*[[Fossil fuel]]
	*[[Propellant]]
	*[[Combustion]]

	==External links==		==External links==
	* [http://www.southerngrease.com Alternative Fuels - Beginner's tutorial on using alternative fuels in a diesel engine]		* [http://www.southerngrease.com Alternative Fuels - Beginner's tutorial on using alternative fuels in a diesel engine]