Table 3.

Exergoenvironmental evaluation.

Exergoenvironmental impact coefficient (Cei )[ 24 ]	Cei =$\frac{1}{{\eta }_{\mathrm{ex}}}$
Exergoenvironmental impact factor (fei )	$f_{ei}=\frac{{\dot{ED}}_{total}}{{\dot{X}}_{solar}}$
Exergoenvironmental impact improvement (θ eii )	θ eii =$\frac{1}{{\theta }_{ei}}$
Exergy stability factor (fes )	$f_{es}=\frac{{\dot{X}}_{total,out}}{{\dot{ED}}_{total}+{\dot{X}}_{total,out}}$
Exergetic sustainability index (θ est )	θ est = fes   × θ eii
Exergoenvironmental impact index (θ ei )	θ ei = fei   × Cei