TERMS RELATED TO COAL
- COVENANT COAL: Tüvenan coal is a raw coal which is naturally extracted from a coal
mine and not processed.
- CRIBLE COAL: Charcoal is a charcoal that has been subjected to extraction and
screening.
- SCREENED COAL: Sieved coal is sieved from certain screen sieves and classified among
certain size limits.
- CLEANED COAL: Cleaned coal is a coal treated with a wet or dry system.
- WASHED COAL: Washed coal is a coal that has undergone a wet cleaning process.
- TOTAL HUMIDITY (HUMIDITY): It is the amount of moisture that can be disposed of
under the standard conditions in the coal taken as a sample.
- BODY HUMIDITY (Humidity Moisture - Hygroscopic Moisture): It is the moisture that
the dry coal sample in the air loses at 105 C in an oxygen-free environment until it
reaches a constant weight.
- FREE HUMIDITY (Surface Moisture - Rough Moisture): Moisture is the moisture that the
coal loses in the air until it becomes dry coal..
- HUMIDITY IN AIR Dried COAL (HUMIDITY): Moisture in the sample of coal that reaches
an equilibrium in the air it is exposed to.
- TOTAL ASH: It is expressed as% of the total weight of the mineral materials that are
left as a result of the complete combustion of a coal sample.
- RELATIVE ASH: They are minerals that cannot be removed from coal by physical means.
- GAS: It is the mass lost during heating and distillation of coal in an airless
(oxygen-free) environment. It is the sum of volatile matter and moisture.
- Volatile matter: It is the value obtained by subtracting the amount of moisture from
the amount of gas in the coal.
- FIXED CARBON: Coal; Moisture, Ash and Volatile Substance Sum.
- ELEMENTAL CARBON: It is the value of the sum of fixed and free carbon in the
composition of coal.
- PURE COAL: It is the part used in coal and consists of volatile matter and fixed
carbon.
- POPs: It is the sum of constant carbon and ash in coal.
- COC PRECISION: It is the expression of the shape and color of the remaining coal as
a result of gas determination.
- TOTAL SULFUR: It is also expressed as% of sulfur contained in all sulfur compounds
(sulphate, organic, free, pyrite, chalcopyrite etc.) in the coal sample.
- Sulfur Remaining in Ash: (Fireproof Sulfur) It is also expressed as% of sulfur
remaining as sulphate compounds in ash obtained as a result of complete combustion
of coal sample at maximum 850 ° C.
- BURN SULFUR: It is the expression of sulfur as a sulfur compound in combustion gases
as a result of complete combustion of coal sample at maximum 850 ° C.
- UP (HIGH) HEAT VALUE: (Calorie Value) The calorimeter bomb of the coal sample as a
result of the complete combustion of heat released Kcal / Kg. as the expression.
- LOWER (DOWN) HEAT VALUE: (Calorie Value) The calorimeter bomb of the coal sample as
a result of the full combustion of the upper temperature value of the humidity of
the coal and the result of the combustion of hydrogen in the coal formed by the sum
of condensation heat Kcal / Kg. as the expression.
