gross calorific value
Quantity required to produce 1 unit of energy. It may be calculated for thermal power plant by dividing Plant Heat Rate by GCV of Coal.
Coal is a form of energy created by burning the coal that is mined. Coal is part of the problem because of the greenhouse ases created by burning it. If we continue using coal at the current rate we will soon run ot.
what is the full form of GAL
what is the full form of UKG ,LKG class
just somedisadvantagesof coal power .It takes YEARS for debrie to form into coal (debrie=grass dead animals etc.) .It is NON renewable .It is NOT an eco friendly energy source
to produce 1 ton of steam how many GCV of coal is required?
Gross calorific value of coal
By Dulong formula
Net calorific value (NCV) can be calculated from gross calorific value (GCV) of coal using the formula: NCV = GCV - (0.09 * moisture content) for lignite and sub-bituminous coals, or NCV = GCV - (0.07 * moisture content) for bituminous and anthracite coals. The moisture content is usually provided on the coal analysis sheet.
Weighted average of oil consumed:(rate of oil A * quantity of oil A) + (rate of oil B * quantity of oil B)Quantity of oil (A+B)GCV of oil consumed:(GCV * quantity of oil A) + (GCV * quantity of oil B)Quantity of oil (A+B)
The Gross Calorific Value (GCV) of coal with 30% Fixed Carbon (FC) would depend on other components present in the coal, such as volatile matter, moisture, and ash. Typically, coal with higher fixed carbon content tends to have a higher calorific value due to its increased energy density. Testing the specific coal sample in a laboratory using standardized methods would provide an accurate GCV measurement.
(uhv + 3645 -75.4 m)/1.466
GCV (Gross Calorific Value) measures the total energy content in coal, while UHV (Useful Heat Value) considers only the heat value that can be practically utilized. UHV takes into account factors such as moisture and ash content that can impact the efficiency of energy conversion processes. Overall, UHV provides a more realistic indication of the usable energy in coal compared to GCV.
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
I do not think that there can be a way to calculate GCV from the UHV. UHV is calculated by taking into account the percentage of two Proximate components of coal i.e. Ash and Moisture. But GCV is calculated using the percentage of ultimate components such as C, H, O, S. UHV(Kcal/Kg) = 8900-138(A+M) GCV is calculated using Dulong's Formula GCV(KJouls/kg) = 333xC + 1442(H -O/ 8) + 93 x S (GCV and all components in dry basis) {| style="width: 81pt; border-collapse: collapse" width="108" |- style="height: 28.5pt; mso-height-source: userset" | class="xl64" style="border: 0px black; width: 81pt; height: 28.5pt; background-color: transparent" width="108" height="38" | |}
Theorotical value can be calculated using the results of ultimate analysis of coal . Based on the GCV of combustible value of coal.
Coal If we know the ultimate analysis of fuel, we can easily calculate its GCV. The basic principle is that there are only 3 components in a fuel which generate heat. These are: Carbon, Hydrogen and Sulphur. According to Dulong's formula gross calorific value of a fuel is; GCV = ((35.5 x C + 114.8 x H + 9.5 x S - 14.5 x O) x 1000) / (100 x 4.1868) Each multiple of carbon, hydrogen and sulphur represents heat generated by its one mole. The formula gives GCV in kcal/kg. Simple isnt it !