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Classification Coal

Reference data and engineering information about classification coal for combustion applications.

classificationcoal

Overview

Engineering reference data for Classification Coal in combustion engineering.

Key Formulas

Heat Release

Q=m˙HVQ = \dot{m} \cdot HV

Fuel energy release rate.

Air-Fuel Ratio

AF=mairmfuelAF = \frac{m_{air}}{m_{fuel}}

Mass of air per mass of fuel.

Excess Air

EA=O221O2×100%EA = \frac{O_2}{21 - O_2} \times 100\%

From flue gas oxygen measurement.

Variables

SymbolDescriptionUnit
QQHeat release rateW
m˙\dot{m}Mass flow ratekg/s
HVHVHeating valueJ/kg
AFAFAir-fuel ratio

Data Table

21 rows
Class / Volatile matter1) (weight %) / General description data
col0
101
102
201
202
203
204
206
301
305
306
401
402
501
502
601
602
701
702
801
802
901

Source: engineeringtoolbox.com

References