COAL CONVERTER ARB↔ADB

DATE 4/19/2023 9:15

ADB Values ARB Values Dry Basis values Dry Ash Free Total Moisture ( %TM ) 39Inherent Moisture (%IM) 16Sulphur (%S) 0.5 0.36 0.60Ash (%A) 8 5.81 9.52Fixed Carbon (% FC) 51.8 37.62 61.67 68.16Volatile Matter (%VM) 38 27.60 45.24 50.00GCV 5300 3848.81 6309.52 6973.68NCV 4000 2904.76 4761.90 5263.16

ARB Values ADB Values Dry Ash Free

Total Moisture ( %TM ) 11Inherent Moisture (%IM) 2Sulphur (%S) 1 1.10 1.12Ash (%A) 12 13.21 13.48Fixed Carbon (% FC) 47 51.75 52.81 61.04Volatile Matter (%VM) 30 33.03 33.71 38.96GCV 4500 4955.06 5056.18 5844.16NCV 4000 4404.49 4494.38 5194.81

ARB Values ADB Values Dry Ash Free

Total Moisture ( %TM ) 11Inherent Moisture (%IM) 2Sulphur (%S) 1.12 1.00 1.10Ash (%A) 13.5 12.02 13.23Fixed Carbon (% FC) 52.8 46.99 51.74 61.04Volatile Matter (%VM) 33.7 29.99 33.03 38.96GCV 4500 4005.00 4410.00 5202.31NCV 4000 3560.00 3920.00 4624.28

DefinitionsAs Received (ar) : includes Total Moisture (TM)Air Dried (ad) : includes Inherent Moisture (IM) onlyDry Basis (db) : excludes all MoistureDry Ash Free (daf) : excludes all Moisture & Ash (All are proximate analysis values)

To Convert ADB Values in to Other Values

To Convert ARB Values in to other ValuesDry Basis

values

To Convert Dry Basis Values in to other ValuesDry Basis

values

COST OF COAL PER UNIT GENERATION

GENERATION CAPACITY (MW) 27.5

AUX. CONSUMPTION (MW) 2.5

85.0

30.0

25.5

4200.0

5135.0

860.4

3374.1

0.657

18.1

75893

2.76

3.04

BOILER EFFICIENCY (%)

TURBINE EFFICIENCY (%)

OVER ALL EFFICIENCY (%)

COAL COST per TON (Rs/Ton)

GCV ARB OF COAL (Kcal/Kg)

HEAT RATE per KWH (Kcal/kwh)

HEAT INPUT PER KWH (Kcal/Kwh)

COAL QTY REQD per KWH (Kg/Kwh)

COAL QTY REQD per TOTAL GEN (TPH)

COAL COST per Hr (Rs/Hr)

Gross COAL COST per KWH (Rs/KWH)

NET COAL COST per KWH ( Rs/KWH)

GROSS CALORIFIC VALUE Kcal/Kg 5100

% MOISTURE 27

% HYDROGEN 3.88

% OXYGEN 15.26

NET CALROIFIC VALUE Kcal/Kg 4742.8

Conversions – Gross/Net (per ISO, for As Received figures)

where M is % Moisture H is % Hydrogen O is % Oxygen

(from ultimate analysis*, also As Received)