where Pb is the brake power, kW; qm0d the mass consumption rate of
diesel fuel, kg/s; qm0m the mass consumption rate of methanol, kg/s;
QLHV0d the lower heating value of diesel fuel, kJ/kg; and QLHV0m is the
lower heating value of methanol, kJ/kg.
Methanol substitution percent (MSP):