What is the meaning of GCV in coal?
Gross Calorific Value
Gross calorific value (GCV) of solid fuels or higher heating value (HHV) for fluid fuels, which represents the heat of combustion when all combustion products are brought to the reactants’ (fuel and oxidant) temperature, condensing all water vapor.
What is GCV?
The Gross Calorific Value (GCV) is the heat produced in kCal by complete combustion of one Kg of fuel. The High Heating Value (HHV), or Gross Calorific Value (GCV), assumes that combustion water is entirely condensed.
Which coal has the highest GCV?
Anthracite
Anthracite contains 86%–97% carbon and generally has the highest heating value of all ranks of coal.
What are the 4 ranks of coal?
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite.
What is GCV of fuel?
Gross calorific value (GCV) or Higher Heating Value (HCV) is the amount of heat released by the complete combustion of a unit of fuel. It assumes all water vapour produced during combustion process is fully condensed. Fuel should be purchased based on NCV.
How do you find the GCV of coal?
The best equation has the following form: GCV= 25.284 (M) + 30.572 (Ash) + 62.127 (VM) + 138.117 (FC) – 2890.095. The result is in agree with previous work that equation involving four independent variables i.e. moisture (M), ash, volatile matter (VM) and fixed carbon (FC) provides the most accurate estimation of GCV.
What is NCV and GCV in coal?
GCV, Gross calorific value of fuel, Kcal/Kg. NCV, Net Calorific Value of fuel, Kcal/Kg. H2%, Hydrogen Percentage by Weight in the fuel. M%, Moisture percentage by weight in the fuel. 584,Latent heat corresponding to partial pressure of water vapor, Kcal/kg.
What is GCV formula?
What are the six types of coal?
There are six main types of coal that are regularly used by humans:
- Peat. Peat is formed from decaying vegetation, and is considered to be the precursor of coal.
- Lignite. Lignite is formed from compressed peat, and is often referred to as brown coal.
- Bituminous/Sub Bituminous Coal.
- Anthracite.
- Graphite.
What is GCV of natural gas?
The calorific value of natural gas is expressed in kWh per cubic meter. The higher calorific value or Gross calorific value (GCV) which supposes that the water of combustion is entirely condensed. The heat contained in this water is recovered.
How GCV differ from NCV?
Best Answer: GCV (gross calorific value) is the quantity of heat produced by combustion when the water produced by combustion is allowed to return to the liquid state. NCV (net calorific value) is the quantity of heat produced by combustion when the water produced by combustion remains gaseous.
What is the GCV value of a coal?
Your term GCV refers to a type of calorific value ( The CV ) that applies to that particular coal. 8 clever moves when you have $1,000 in the bank. We’ve put together a list of 8 money apps to get you on the path towards a bright financial future.
What does GCV mean in chemistry?
Gross Calorific Value (GCV means the amount of energy released, as heat, by the complete combustion of a defined air-gas mixture, in constant pressure, and with all combustion products returning to the initial temperature of the reactants, with the water formed in the combustion being in liquid state.
What is the gross calorific value of coal?
Gross calorific value, also known as higher heating value (HHV), is determined by measuring the heat released when coal is burned in a constant-volume calorimeter, with an intitial oxygen pressure of 2 to 4 MPA, and when the combustion products are cooled to a final temperature between 20 and 35°C.
What is the difference between GCV and HHV?
The Gross Calorific Value (GCV) is the heat produced in kCal by complete combustion of one Kg of fuel. The High Heating Value (HHV), or Gross Calorific Value (GCV ), assumes that combustion water is entirely condensed.