The operating conditions of an aircraft engine combustor are as follows.
The rate of total enthalpy of air entering the combustor $=28.94 \mathrm{MJ} / \mathrm{s}$.
The rate of total enthalpy of air leaving the combustor $=115.42 \mathrm{MJ} / \mathrm{s}$.
Mass flow rate of air $=32 \mathrm{~kg} / \mathrm{s}$.
Air to fuel mass ratio $=15.6$.
Lower heating value of the fuel $=46 \mathrm{MJ} / \mathrm{kg}$.
The efficiency of the combustor is____________
$\%$ (round off to two decimal places).
The operating conditions of an aircraft engine combustor are as follows.
The rate of total enthalpy of air entering the combustor $=28.94 \mathrm{MJ} / \mathrm{s}$.
The rate of total enthalpy of air leaving the combustor $=115.42 \mathrm{MJ} / \mathrm{s}$.
Mass flow rate of air $=32 \mathrm{~kg} / \mathrm{s}$.
Air to fuel mass ratio $=15.6$.
Lower heating value of the fuel $=46 \mathrm{MJ} / \mathrm{kg}$.
The efficiency of the combustor is____________
$\%$ (round off to two decimal places).