## 2 Calculate the GCV and NCV of a fuel from the following ...

Analysis of coal – Procedure for proximate analysis 1. Moisture: Weigh coal sample into dry silica crucible.Heat for 1h at 110 0 C. Cool & weigh. Calculate the loss in wt. as percentage. % moisture = Loss in weight × 100 Wt. of coal taken • Less moisture content better quality coal 2. Volatile matter: Cover coal left in step 1. Place in a muffle furnace at 950 0 C for 7 minutes.

## Coal Grades | Ministry of Coal, Government of India

The gradation of non-coking coal is based on Gross Calorific Value (GCV), the gradation of coking coal is based on ash content and for semi coking /weakly coking coal it is based on ash plus moisture content, as in vogue as per notification.

## Calculate H.C.V. and L.C.V. using Dulong formula.

A sample of coal has following composition by mass C = 70 %, O = 8 %, H = 10 %, N = 3 %, S = 2%, Ash = 7 %. Calculate H.C.V. and L.C.V. using Dulong formula[Difficulty level-high]

## Steam Calculator: How To Calculate Steam Consumption ...

Mar 04, 2020· Where: m s: Mean rate of condensation of steam in kg/hr; W: Total weight of pipe plus flanges and fittings in kg; T s: Steam temperature o C; T amb: Ambient temperature; C p: Specific heat of pipe material in kj /kg o C; h fg: Enthalpy of evaporation or saturated enthalpy at operating pressure in kj /kg; t: Time of warming-up in minutes; Note: Suppose if the warm-up/heating time of the system ...

## Coal Marketing International

Units. Total moisture: Inherent Moisture: Ash component: Calorific Value (Gross As Received): Calorific Value (Air Dried Basis): Calorific Value (Dry Basis):

## ncv formula of coal - thebushlodge.co.za

formula for converting coal gcv to ncvBINQ Mining. gcv to nar coal conversion – Gold Ore Crusher. easy chart for coal gcv, gar and ncv . coal gcv adb to arb . gcv arb adb ncv conversion formulagreencast . free coal calculator to convert gcv to ncv online conversion of coal gcv to ncv – SBM Mining . coal calculator to convert gcv (arb .

## Formulas for calculating the calorific value of coal and ...

A new formula for calculating the calorific value of coal from its ultimate analysis has been obtained by regression analysis of a data bank consisting of data on 775 samples of U.S. coals of all ranks. It yielded zero average difference between observed and calculated values and a standard deviation of 129 Btu/lb (300 kJ/kg).

## Calculation of Boiler Efficiency

Average NCV of Coal Kcal/kg 3800 3800 3800 3800 3800 3800 Estimated Boiler Efficiency 76.7% 75.1% 76.6% 74.0% 74.8% 71.4% Calculated Average Boiler Efficiency 75% Formula = Boiler Efficiency (ŋ) = Steam Quantity x ( Steam Enthalpy - Feed Water Temperature) Coal Consumption Quantity x Calorific Value of Coal

## How much coal is required to generate 1 TPH of steam in ...

Jun 01, 2017· It is little bit tough to answer any how i will The factors affecting to calculate the quantity of coal required to produce the 1TPH steam 1. Boiler efficiency 2. GCV ( Gross calorific value ) of the coal 3. Enthalpy of the water and steam . I wil...

## Coal Calculations | Mining | SGS

The following are some of the interesting protocols and calculations regularly used by SGS coal and coke specialists. These calculations are provided for your information, but SGS cannot guarantee that all data or formulas match the most current standards. Clients trading coal must familiarise themselves with the current standards being used in ...

## Boiler Fuel Consumption Calculation--ZBG

Boiler Fuel Consumption Calculation 2017-07-04 15:07:05. Many customers ask us boiler price, the cost of the boiler and how to calculate boiler fuel consumption when they want to purchase a boiler.. For the calculation of boiler fuel consumption, firstly, determine the specifications and boiler steam production, and the actual enthalpy increment of the boiler is calculated from the steam ...

## Coal Net calorific value calculation - Page 1 of 1

Dec 11, 2015· Coal Net calorific value calculation. Dear experts, please send we the formula to calculate Coal calorific value As received from Coal calorifiac value Dry bases. besides, I need the explenation of tesmins in coal: Gross CV dry bases, Gross CV as resieved; Net CV dry bases, Net CV as received. what are the diferenses from each others in details

## What is the exact difference between GCV & NCV? - Quora

Sep 23, 2016· 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 t...

## 2001 wienese BOILERS, BOILER FUEL AND

boiler fuel and discusses the calculation of boiler efficiency. The figures that are used are generic and are not to be taken definitively. Boilers Typical modern boilers in the South African sugar industry pro-duce superheated steam at a pressure of 3100 kPa (abs) and a temperature of 400°C. They are designed to burn bagasse, coal

## calculation of coal on adb and arb basis

coal gcv arb/adb calculation – Crusher South Africa. coal gcv adb to arb conversion formula – Grinding Mill China Indonesian Steam Coal Calculation Based on GCV/NCV …

## Calorific Value of Coal 21092012 - Brijj

Coal is generally analysed to determine its physical, chemical, thermal, mechanical properties like size consist, proximate values, ultimate values, calorific value and HGI. Calorific Value (CV) is an important thermal property of coal which indicates the amount of heat energy that

## Steam Generation Thermodynamics 101 | Power Engineering

If steam is extracted from the turbine at a pressure of 500 psia, energy/mass balance calculations show that the flow rate to the heater should be 20.8 percent of the total steam flow. The ...

## Using Dulong and Vandralek Formulas to Estimate the ...

efficiency calculations. In order to avoid confusion, and in any case the value (HCV or LCV) or convention should be clearly stated. 2.3 Calculation of the CV Below are some formulas that enable one to directly calculate LCV and HCV provided the elemental makeup of the fuel is known. Calculation of the HCV : - Dulong formula:

## Coal Calculations | Mining | SGS South Africa

The following are some of the interesting protocols and calculations regularly used by SGS coal and coke specialists. These calculations are provided for your information, but SGS cannot guarantee that all data or formulas match the most current standards. Clients trading coal must familiarise themselves with the current standards being used in ...

## FOrmula to calculate gcv of coal - Answers

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 ...

## How to Calculate the Coal Quantity Used in a Power Plant ...

The basic function of the power plant is to convert energy in coal to electricity. Therefore, the first thing we should know is how much energy there is in coal. Energy content of coal is given in terms of KiloJoules (kJ) per Kilogram (kg) of coal as the Gross calorific value (GCV) or the Higher Heating value (HHV) of coal. This value can vary ...

## Determining the Gross Calorific Value in Coal

Mar 06, 2015· Coal, as it is commonly known, is a solid fossil hydrocarbon fuel material. The gross calorific value of coal is frequently used when determining the total calorific value for a specific amount of coal for fuel value purposes or when establishing the rank of classification of the coal material.

## Calorific Value of Diesel Petrol & Coal – Fuels Heat Of ...

Aug 01, 2018· NCV=GCV-0.09H*587 where. H-% of Hydrogen in the Fuel. Theoretical Calculation Of Calorific Value – Dulong's Formula. If both hydrogen and oxygen are present, it may be assumed that all the oxygen are already combined with 1/8 of its weight of hydrogen to form water.

## Coal Conversion Facts - Drummond Company

1 MW (thermal power) [MWth] = approx 1000 kg steam/hour 1 MW (electrical power) [MWe] = approx MW(thermal power) 3 A 600 MWe coal-fired power station operating at 38% efficiency and 75% overall availability will consume approximately: – Bituminous coal (CV 6000 kcal/kg NAR*): 1.5 Mt/year

## How do you calculate the net calorific value of steam coal ...

Methane is the answer, By the destructive distillation of coal, we can obtain coal gas, coal tar and ammonia. Coke is left as a residue. Coal gas contains methane, carbon monoxide and hydrogen.

## steam coal ncv calculation formula - BINQ Mining

coal gcv arb/adb calculation – Grinding Mill China. ADB 6300 GCV / ARB 5500 NCV.Commodity : Indonesian Steam Coal ADB 6300 GCV (in bulk) » Free Online Chat. …FOrmula to calculate gcv of coal – The Q&A wiki. »More detailed

## Gross Calorific Value - an overview | ScienceDirect Topics

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. Coal is a porous medium, and these pores ...

## formula of gcv to ncv by steam coal - BINQ Mining

Nov 28, 2012· Aug 06, 2008 · NCV: heat units … less of any steam below 1000 C. for M above 2 % GCV (Kcals/Kg.) … can be obtained from the Proximate analysis of coal by using formula » More detailed BUMI ENERGY COAL : Coal Calculator