Steam Use from Energy Use Formula

For the air mass flow, water mass flow, and offsheet methods, steam use is back-calculated from the annual energy use using the enthalpy difference and boiler efficiency.

\begin{equation}\label{eq:steam-reduction-steam-use} \dot{m}_{steam} = \frac{E_{use}}{\Delta h} \cdot \eta_{boiler}\end{equation}

Symbols

\(\dot{m}_{steam}\)	Annual steam use \([\unit{ \kg\per\hour}]\)
\(E_{use}\)	Annual energy use \([\unit{ \kJ\per\year}]\)
\(\Delta h\)	Enthalpy difference between steam and feedwater \([\unit{ \kJ\per\kg}]\)
\(\eta_{boiler}\)	Boiler efficiency \([\unit{ \unitless}]\)