Given et al. used theoretical physical constants to develop an equation to calculate GCV from elemental composition; Mason and Gandhi used ... Maixi Lu, Zhou C (2009) Coal calorific value prediction with linear regression and artificial neural network. Coal Sci Technol 37:117–120. Google Scholar Jiang W, Hongqi W, Qu T (2011) …

The calorific value (CV) as an indicator of the chemically stored energy in coal is a very important parameter in the assessment of its value as a fuel [4], [5], and potentially could be a basis for the purchase of coal [6]. CV (heating value) is the amount of energy per unit mass released upon complete combustion [7]. CV of coal as a rank ...

Article. Development of Multiple Regression Model for Assessment of Coal Calorific Value in Indian Opencast Mines. ORIGINAL CONTRIBUTION. Published: 03 …

The gross calorific value (GCV) of coal is a key. yardstick for many end users purchasing coal from suppliers, as it. pr ovides a clear measure of the useful energy content of a coal. Several ...

This work presents the analysis of combustion characteristics of high ash Indian coal (28%–40%) collected from different mines of Singaurali coalfield, India. All the coal samples were characterized by proximate and gross calorific value analysis. See more

Coal, the most important fossil fuel in India, accounts for 75% of India's total electricity requirement in Dec 2020 and 51.65% of energy requirement overall as on Dec 2021.

Coal is the primary fuel for producing Electricity. Some of the characteristics of coal have profound influence on the day to day working and economics of the power plant. This article discusses Calorific Value and Moisture. Calorific value is the most important parameter that determines the economics of the power plant operation.

The aggregates for hard coal and brown coal are included for years prior to 1978 only. This table provides the calorific values used to convert raw tonnes of coal and coal products into energy for the OECD Coal Balance data. It is shown in megajoules per tonne for OECD countries. Years covered: 1960 onwards.

Calorific value is 2110 Kcal/Kg and maximum International Journal of Engineering Trends and Technology (IJETT) – Volume 30 Number 1 - December 2015 Department of Mining Engineering, IIT (BHU),

contributes ~ 80% of coal production in India. Generally, Indian coals have low calorific value and high levels of inorganic impurities. Also, coal ash is difficult to remove beyond a certain level due to non-homogenously mix nature. The typical characteristics of Indian coal being used for power generation are given in Table 1. Table 1 Typical ...

The calorific value of any fuel is one of the crucial parameters to grade fuel's burning capability. The bomb calorimeter has historically been used to calculate coal's gross calorific value (GCV). However, for many years, engineers and scientists were trying to measure coal's GCV without a bomb cal …

NIRS, XRF and NIRS-XRF fusion spectrum were separately used to establish partial least squares (PLS) regression models for coal calorific value, and better prediction performance was obtained by ...

India, the world's third largest coal producing country, is expected to maintain strong dependency on coal for the coming few decades. The gross calorific value (GCV) of coal is a key yardstick ...

In India utilities usually get coal from multiple sources and coal is priced essentially on the basis of gross calorific value (GCV). During combustion, GCV contributes only to the maximum possible heat release, though heat release rate is mostly controlled by coal proximate parameters i.e. ash, volatile matter, moisture and fixed …

Calorific Value is the heat produced on complete combustion of 1 kg of fuel. Calorific Value is mainly used to determine the efficiency of the fuels. Greater the calorific value, greater is the efficiency of the fuel and better the fuel. The amount of heat generated by different types of fuels varies, depending on the nature of the element and ...

Abstract. The Indian coals are a sub-bituminous variety, high in ash content and low in calorific value. The high ash content in Indian coals makes Indian coals more …

The calorific value of coal has a linear dependence on the ash content in coal. Results of determination of the calorific value by the correlation method fitted well at the medium moisture samples ...

There are also studies using the RF method to predict the calorific value. These studies focused on the calorific value prediction of producer gas from biomass gasification [1], pyrolytic bio-oil from fast pyrolysis of biomass [4], municipal solid waste [13], biomass-biochar-hard coal [24], torrefied biomass [25], coal [26].

Higher the Calorific Value lesser the amount of the coal required per unit of electricity. Higher calorific value also means the cost of the coal is higher but is offset by the lower cost of logistics, storage and ash disposal. The calorific value of coal is the heat liberated by its complete combustion with oxygen. Most applications which

India, the world's third largest coal producing country, is expected to maintain strong dependency on coal for the coming few decades. The gross calorific value (GCV) of coal is a key yardstick for many end users purchasing coal from suppliers, as it provides a clear measure of the useful energy content of a coal. Several methods are …

However, the most important parameter among them is the calorific value of coal. Calorific value is the heat capacity of a unit weight of coal after burning completely [7, 8]. It is usually referred to as gross calorific value (GCV) or higher heating value (HHV). Bomb calorimeter is used to measure the GCV of a coal sample.

The Calorific Value varies on the geographical age, formation, ranking and location of the coal mines. It is expressed as kJ/kg, Kcal/kg or BTU/lb. in the SI unit system. Coal contains moisture ...

Assessments, such as calorific value, ultimate analysis, and proximate analysis determine the energy quality of coal. The weight percentages of ash (C A), moisture (C M), fixed carbon (F C), and volatile matter (V m) are measured by proximate analysis [2]. These four components involve 100 % of all chemical constituents of coal.

The following article will guide you about how to calculate the calorific value of fuels. Learn about:- 1. Meaning of Calorific Value of Fuels 2. Theoretical Determination of Calorific Value of Fuel 3. Experimental Determination of Calorific Value of a Fuel 4. Determination of Calorific Value of Fuels Using Bomb Calorimeter 5. Calorific Value of …

The gross calorific value (GCV), also known as the higher heating value (HHV) of coal is the amount of heat emitted upon complete combus-tion of coal. The GCV of coal is …

For calculation of GCV of fuel, we need to do an analysis of fuel and get the constituent of fuel on a weight basis. Based on the enthalpy of formation we can estimate the calorific value of the fuel. C+ O2 —- CO2 + 8137.5Kcal/kg of carbon. H2 + ½ O22—-H20 + 28905 Kcal/Kg of hydrogen. S +O2—SO2+ 2181 Kcal/kg of Sulphur.

In this study, the gross calorific value (GCV) of coal has been estimated using two types of coal analysis data. These are proximate data and spectral reflectance …

Gross calorific value (GCV) or higher heating value (HHV) is the calorific value under laboratory conditions. The difference is essentially the latent heat of the water vapour produced; ash content can vary from 1% to 50% or even higher. Many standards do not define material with >50% ash as being 'coal'.

The gross calorific value (GCV) of coal is a key yardstick for many end users purchasing coal from suppliers, as it provides a clear measure of the useful energy …

Calorific Value. The calorific value of coal is measured for almost all coal samples. It is a measure of the heating ability of a coal and is needed to estimate the amount of coal needed to produce a desired amount of heat. Calorific values are also used to define coal rank in low- and medium-rank coals below the rank of medium …