Table 22.

Summary for the existing and modified PV enhancer assessment methods.

Method	Equation	Is the PV enhancer's lifespan included in the analysis?
Existing methods [52]	$\text{YPA}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Area}\left({\mathrm{m}}^2\right)}$ $\text{YPV}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Volume}\left({\mathrm{m}}^3\right)}$ $\text{YPW}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Weight}\left(\text{kg}\right)}$	No
Existing methods [53]	${\mathrm{F}}_{\text{YPAC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Area}\left({\mathrm{m}}^2\right)\times \text{Manufacturing}\text{cost}(\$)}$ ${\mathrm{F}}_{\text{YPVC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Volume}\left({\mathrm{m}}^3\right)\times \text{Manufacturing}\text{cost}(\$)}$ ${\mathrm{F}}_{\text{YPWC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)}{\text{Weight}\left(\text{kg}\right)\times \text{Manufacturing}\text{cost}(\$)}$	No
Modified methods (current study)	${\mathrm{F}}_{\text{YLPAC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)\times \text{Lifespan}\left(\text{Year}\right)}{\text{Area}\left({\mathrm{m}}^2\right)\times \text{Manufacturing}\text{cost}(\$)}$ ${\mathrm{F}}_{\text{YLPVC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)\times \text{Lifespan}\left(\text{Year}\right)}{\text{Volume}\left({\mathrm{m}}^3\right)\times \text{Manufacturing}\text{cost}(\$)}$ ${\mathrm{F}}_{\text{YLPWC}}=\frac{\text{Total}\text{exergy}\text{or}\text{energy}\left(\mathrm{J}\right)\times \text{Lifespan}\left(\text{Year}\right)}{\text{Weight}\left(\text{kg}\right)\times \text{Manufacturing}\text{cost}(\$)}$	Yes