spontaneous combustion coal

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• Spontaneous combustion — is a type of combustion which occurs without an external ignition source. How spontaneous combustion occurs # A substance with a relatively low ignition temperature begins to release heat, which may occur in several ways, such as oxidation or… …   Wikipedia

• spontaneous combustion — the ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source. [1800 10] * * *       the outbreak of fire without application of heat from an external source. Spontaneous combustion may …   Universalium

• Spontaneous combustion, or self-heating, of coal —   A naturally occurring process caused by the oxidation of coal. It is most common in low rank coals and is a potential problem in storing and transporting coal for extended periods. Factors involved in spontaneous combustion include the size of… …   Energy terms

• Spontaneous human combustion — (SHC) refers to the belief that the human body sometimes burns without an external source of ignition. There is much speculation and controversy regarding SHC, for it is an unproven natural phenomenon.Possible explanationsMany theories and… …   Wikipedia

• Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• Coal dust — is a fine powdered form of coal, which is created by the crushing, grinding, or pulverizing of coal. Because of the brittle nature of coal, coal dust can be created during mining, transportation, or by mechanically handling coal. Contents 1 Risks …   Wikipedia

• Coal seam fire — A coal seam fire near Denniston, New Zealand A coal seam fire or mine fire is the underground smouldering of a coal deposit, often in a coal mine. Such fires have economic, social and ecological impacts. They are often started by lightning, grass …   Wikipedia

• Combustion — This article is about the process of burning. For combustion without external ignition, see spontaneous combustion. For the engine used in mobile propulsion, see internal combustion engine. For the visible part of a fire, see flame. Burning… …   Wikipedia

• Coal preparation plant — A coal washer in Eastern Kentucky A coal preparation plant (CPP) is a facility that washes coal of soil and rock, preparing it for transport to market. A CPP may also be called a coal handling and preparation plant (CHPP), prep plant, tipple, or… …   Wikipedia

• spontaneous — adj. 1 acting or done or occurring without external cause. 2 voluntary, without external incitement (made a spontaneous offer of his services). 3 Biol. (of structural changes in plants and muscular activity esp. in young animals) instinctive,… …   Useful english dictionary