## 5 Conclusions  
Thermodynamics analysis of a more efficient novel solar-driven multi-generation system (MGS-II) combined with ORC, HDH, and DCS with heat recovery systems have  
Figure 11: System assessment and evaluation: (**a**) Space-supplied air conditions versus produced fresh water rate, (**b**) power output and space cooling capacity versus produced fresh water rate. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Refs** & **System Type** & **System Productivities** & **Prime Mover** & **Application** & \begin{tabular}{c} **Study** \\ **Description** \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Max. Fresh** \\ **Water** \\ **P****max** \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **T****GOR\_max/** \\ **P****max** \\ **(kg/h)** \\ \end{tabular}  \\ \hline [PERSON] et al. [31] & co-generation & Heating/Power & Gas turbine & Industrial & Modeling & — & 99.96\% \\ [PERSON] et al. [32] & tri-generation & Cooling/Heating/Power & gas turbine & Commercial & Modeling & — & 53.3\% \\ [PERSON] et al. [33] & co-generation & Cooling/Fresh water & compression & Residential & Modeling & 21.5 & — \\  & & & & \begin{tabular}{c} cycle \\ Internal \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  \\ \[PERSON] et al. [31] & co-generation & Heating/Power & Gas turbine & Industrial & Modeling & — & 59.96\% \\ [PERSON] et al. [32] & tri-generation & Cooling/Heating/Power & gas turbine & Commercial & Modeling & — & 53.3\% \\ [PERSON] et al. [33] & co-generation & Cooling/Fresh water & compression & Residential & Modeling & 21.5 & — \\  & & & & \begin{tabular}{c} cycle \\ Internal \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  & \ \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  & \begin{tabular}{c} **Total** \\ **(kg/h)** \\ \end{tabular}  \\ \hline [PERSON] et al. [31] & co-generation & Heating/Power & Gas turbine & Industrial & Modeling & — & 59.96\% \\ [PERSON] et al. [32] & tri-generation & Cooling/Heating/Power & gas turbine & Commercial & Modeling & — & 53.3\% \\ [PERSON] et al. [33] & co-generation & Cooling/Fresh water & compression & Residential & Modeling & 21.5 & — \\  & &been investigated and presented for producing electricity, space cooling/domestic heating, and freshwater production. The effect of different system operating and design parameters on the systems' productivities and performance indicators was studied. In addition, a comparison study with the basic multi-generation system (MGS-I) is performed. Moreover, the validated system models have been applied to the performance evaluation when operating conditions are varied. Consequently, the following conclusions can be drawn:  
* The proposed multi-generation systems can produce electricity, fresh water, and cooling/domestic heating while maintaining human thermal comfort conditions inside the buildings. * The \(\dot{W}_{net}\), \(\dot{m}_{fresh}\) and \(\dot{Q}_{cooling}\) for all systems improve with increasing \(\Delta\)tsup and decrease with increasing ORC condensing temperature, while tw1 has an adverse, positive, and negligible effect on \(\dot{m}_{fresh}\), \(\dot{Q}_{cooling}\), and \(\dot{W}_{net}\), respectively. * The \(\dot{m}_{fresh}\) drops with increasing MR, while \(\dot{Q}_{cooling}\) improves with increasing MR until it reaches a maximum value and decreases with increasing MR.
* MGS-II system has higher \(\text{GOR}_{\text{HDH}}\), TGOR, STG, and STGP than the MGS-I system. * \(\dot{Q}_{cooling}\) improves with an increase in MR until they reach peak values, decreasing considerably. * The accepted ranges of systems input studied parameter were determine based on the accepted ranges comfortable space-supplied air conditions (temperature and humidity) at t\({}_{\text{44}}\) = 15.5-18.2 \({}^{\circ}\)C and w\({}_{\text{94}}\) = 9.2-12.00 gv/kga for systems MGS-I and MGS-II.