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What is difference between fine coal moisture and inhereent moisture and free moisture?
Fine Coal Moisture: not familiar with this term. I assume it is the Total Moisture in the fine fraction of coal. Fine fraction or "fines" is sometimes defined as the -0.5 mm fraction.
"Inherent Moisture" is a non-preferred term according to Australian Standard 2418-1995: Coal & Coke - Glossary of Terms. It is sometimes used to mean the moisture retained by a coal or coke sample, after it has attained equilibrium with the atmosphere to which it is exposed. "Inherent" is not a good word here because the atmosphere to which the sample is exposed is not normally controlled for temperature or humidity.
Alternatively, "Inherent Moisture" is also used to mean "Equilibrium Moisture" = "Bed Moisture" = "In-situ Moisture", which is an ASTM test for moisture retained after the sample has attained equilibrium with an atmosphere of controlled humidity and temperature.
These two usages of Inherent Moisture are not even approximately the same; the term is therefore ambiguous and should not be used.
"Free Moisture" = "Surface Moisture" is the moisture that is lost by the coal or coke in attaining equilibrium with the air to which it is exposed (AS2418). This air would normally be at ambient temperature and humidity.
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Is coal cheaper than oil?
yes
What did people use to cook in the olden days?
Coal stoves, Wood stoves, Wood fires.
How much coal is mined every year?
10,000 tons every year in your back yard. :[
What does ucg stand for?
The acronym UCG could stand for any number of things, including United Church of God, Ultrasonic Cardiogram, Ultrasonic Cardiology, Unit Cost Goals, Underground Coal Gasification, Unicredit Group, University College Gallway, even used coffee grounds to be used in composting.
What is dimension of isolation stopping in underground coal mines?
the dimension are it will be of full height of the roadway and the width is 1m at the top and increases 15cm gradually below every 3m of the stopping , for an eg: if the height of stopping is 7 m ... the width is 1m for first 1m from top after that 1.15m for 3m in the middle section ... then 1.30m rest width for 3m below till bottom .....
What is total moisture and inherent moisture on coal?
Total moisture in coal refers to the moisture content present in the coal including surface moisture and inherent moisture. Inherent moisture, on the other hand, is the moisture that is chemically bound within the coal structure and cannot be removed by air drying. The difference between total moisture and inherent moisture is the amount of surface moisture in the coal.
What is the difference between ARB and GAR in Coal Analysis?
ARB (as received basis) refers to the analysis of coal as it is received at the power plant, including the moisture content. GAR (gross as received basis) refers to the analysis of coal without adjusting for moisture content. So, GAR will have a higher value compared to ARB because it does not account for the moisture content that is present in the coal.
What is the difference between brown and black coal besides their colour?
One main difference between brown coal (lignite) and black coal (anthracite) is their carbon content. Black coal has a higher carbon content and lower moisture content, making it a more efficient fuel source. Brown coal has a lower carbon content and higher moisture content, making it less energy-dense and less efficient.
What is the difference between peat and brown coal and black coal?
Peat is an early stage of coal formation with low carbon content and high moisture content. Brown coal, also known as lignite, has a higher carbon content and lower moisture content compared to peat. Black coal, including bituminous and anthracite coal, has the highest carbon content and is the most mature form of coal.
What is a soft brown coal with less moisture called?
A soft brown coal with less moisture is typically referred to as sub-bituminous coal. This type of coal contains less moisture and has a higher heating value compared to other types of brown coal.
Which coal has highest moisture content?
as peat(90% moisture) is not regarded a rank of coal so lignite is the lowest grade of coal containing moisture as high as 30%.
What are the types of Moisture content in coals?
There are two main types of moisture content in coal: inherent moisture, which is present within the coal particles themselves, and extraneous moisture, which is moisture that is on the surface of the coal particles. Inherent moisture is more difficult to remove and can impact the heating value of the coal, while extraneous moisture can be more easily removed through drying processes.
What is the difference between GCV and UHV?
Useful heat value(UHV) pricing mechanism of coal deducted ash and moisture content from standard formula and in this coal is categorised into 7 grades. Gross calorific value(GCV) of coal has 17 grades and prices are linked to the actual calorific value/quality of coal-by latika joshi
What is the relation between ADB and AD for coal testing?
ADB (Air-Dried Basis) and AD (As-Delivered Basis) are two different methods of expressing the moisture content of coal. ADB refers to the moisture content of coal after it has been air-dried, while AD includes the moisture present in the coal as it is delivered to the end user. The conversion between ADB and AD allows for accurate comparisons of coal quality for various purposes.
What is the difference between coal mined in the Appalachians and in western states?
coal in the western areas has a lower energy content
What is the difference between coal mined in the Appalachian and in the western states?
coal in the western areas has a lower energy content
What is the difference between coal mined in the appalachians and in the western states?
coal in the western areas has a lower energy content
