When fuel enters at a temperature above ambient, it contributes additional sensible heat to the system. This heat is calculated using the flue gas specific heat and temperature difference.

\begin{equation}\label{eq:gas-flue-gas-material-sensible-heat-cpp} Q_{sens} = Cp_{fg} \cdot (T_{fuel} - T_{amb})\end{equation}

Symbols

\(Q_{sens}\)	Sensible heat of fuel \([\unit{ \btu\per\hour}]\)
\(Cp_{fg}\)	Specific heat of flue gas \([\unit{ \btu\per\pound\degreeFahrenheit}]\)
\(T_{fuel}\)	Fuel temperature \([\unit{ \degreeFahrenheit}]\)
\(T_{amb}\)	Ambient temperature \([\unit{ \degreeFahrenheit}]\)