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A soft brown coal with less moisture is called bituminous coal.
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What is the difference between brown and black coal besides their colour?
Black coal is an ideal fuel as it contains less water than brown coal and thus provides more energy than the same amount of brown coal.
What is the difference between brown coal and black coal?
one is brown, and one is black. hahaha nahh, the black coal can produce less water than the brown with the same volume therefore black coal is more efficient.
What is the acceptable Moisture Contents Flow Moisture Point Transportable Moisture Limit of Nickel Ore?
less then 35%
How can you conserve coal?
you can use less of it.
Is coal hard?
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
What is the difference between brown coal and black coal?
one is brown, and one is black. hahaha nahh, the black coal can produce less water than the brown with the same volume therefore black coal is more efficient.
What is the difference between brown and black coal besides their colour?
Black coal is an ideal fuel as it contains less water than brown coal and thus provides more energy than the same amount of brown coal.
Short note on different varieties of coal?
There are four types of coal as under:Lignite coalUsed almost exclusively for electric power generation lignite is a young type of coal. Lignite is brownish black, has a high moisture content (up to 45 %), and a high suphur content. Lignite is more like soil than a rock and tends to disintegrate when exposed to the weather. Lignite is also called brown coal. Lignite has a colorific value of less than 5 kw/kg approximately.Subbituminous coalSubbituminous coal is also called black lignite. Subbituminous coal black and contains 20-30 % moisture. Subbituminous coal is used for generating electricity and space heating. Subbitumnious coal has calorific values ranging from 5 - 6.8 kW/kG approximately.Bituminous coalBituminous coal is a soft, dense, black coal. Bituminous coal often has bands of bright and dull material in it. Bituminous coal is the most common coal and has a moisture content less than 20 %. Bituminous coal is used for generating electricity, making coke, and space heating.Bituminous coal has calorific values ranging from 6.8 - 9 kW/kG approximately.Anthracite coalOften referred to as hard coal, anthracite is hard, black and lustrous. Anthracite is low in suplhur and high in carbon. It is the highest rank of coal. moisture content generally is less than 15 %.Anthracite has a calorfific values of around 9 kW/kG or above.
Why is cool and dry air often called a high?
It is called a "high pressure region". Air that is cool, is dense. Air that has less moisture is more dense than air with more moisture.
How can you conserve coal energy?
Use coal less
What is the acceptable Moisture Contents Flow Moisture Point Transportable Moisture Limit of Nickel Ore?
less then 35%
How can you conserve coal?
you can use less of it.
The cooler the air?
the less moisture it can hold
Is coal hard?
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
Which hydrocarbons are in less demand?
the less good ones
What is hard coal?
2.2
What is the most common type of coal?
Peat is sometimes considered a type of coal-so surely it must be seen as the most common. There is a lot of bituminous ("soft") coal. Anthracite ("hard") coal, which produces less air pollution, is less common.
