Moisture Correction Calculator
Moisture Correction Calculator: As-Received Fuel Heating Value
Fuel moisture reduces usable heating value twofold: it dilutes the combustible content and consumes energy as latent heat to vaporize. This calculator corrects a dry-basis heating value down to its real as-received value.
The Formula
HV_wet = HV_dry × (1 − Moisture Fraction) − 2.442 × Moisture Fraction
Worked Example
A fuel has a dry-basis heating value of 20 MJ/kg with 30% moisture content.
HV_wet = 20 × 0.70 − 2.442 × 0.30 = 13.27 MJ/kg
How to Use This Calculator
- Enter the dry-basis heating value in MJ/kg.
- Enter the fuel's moisture fraction (0-1).
- Click Calculate to get the as-received heating value.
Related Calculations
Particularly relevant for the Biomass Fuel Consumption Calculator, where moisture content varies widely between batches.