## 5 Conclusions
Otherwise, the conditions outside are not desirable. * The maximum \(\dot{W}_{net}\), \(\dot{m}_{fresh}\), \(\dot{Q}_{cooling}\) within the ranges of all studied parameters are 102.3 kW (MGS-I and MGS-II), 141.5 kg/h (MGS-II), and 20.77 kW (MGS-I and MGS-II), respectively. * Charts with limitations of \(\dot{W}_{net}\), \(\dot{Q}_{cooling}\) at any \(\dot{m}_{fresh}\) for studied systems within all studied parameter ranges are presented. * The maximum \(\text{GOR}_{\text{HDH}}\), \(\dot{n}_{\text{ORC}}\), \(\dot{A}_{\text{solar}}\), TGOR, STG, and STGP of the MGS-II system within the ranges of all studied parameters are 0.21, 15.34 %, 1273 m\({}^{2}\), 0.6303, 3.824 kWh/m\({}^{2}\), and 0.149 USD/m\({}^{2}\), respectively. * The current system (MGS-II) has the maximum of the system's performance indicators and productivity (TGOR and \(\dot{m}_{fresh}\)) compared with the related systems
* Finally, we acknowledge that the current work presented in this paper is just a start for poly-generation systems; using different improvements of ORC, types of A/C (adsorption and absorption) and desalination (RO, MED) systems in addition to transient analysis are recommended as a future work for poly-generation systems. H.F.E. : Management and coordination responsibility for the research activity planning and execution, Conceptualization, methodology, Data collection, Writing--Original draft preparation, Manuscript preparation and data analysis, visualization. A.F. : Management and coordination responsibility for the research activity and execution Conceptualization, EES simulation, methodology, Writing--Original draft preparation, Manuscript preparation and data analysis, visualization. F.A.A. : Conceptualization, project administration, funding acquisition, Writing and manuscript editing, S.A.: Conceptualization, Writing and manuscript editing. M.A.A. : Conceptualization, Writing and manuscript editing. H.A.R. : Management and coordination responsibility for the research activity planning, Conceptualization, Data collection, visualization. All authors have read and agreed to the published version of the manuscript. This research was funded by Researchers Supporting Project number (RSP2022R515), King Saud University, Riyadh, Saudi Arabia. Not applicable. **Acknowledgments:** The authors extend their appreciation to the Researchers Supporting Project number (RSP2022R515), King Saud University, Riyadh, Saudi Arabia for funding this research work. **Conflicts of Interest:** The authors declare no conflict of interest. **Nomenclature**  
A Area, m\({}^{2}\)  
Cp Specific heat, kJ/kg K  
F\({}_{1}\), F\({}_{2}\)  
Combined potential, -  
h\({}_{\rm{fg}}\)  
Water latent heat of evaporation, kJ/kg  
h Specific enthalpy, kJ/kg  
I\({}_{\rm{T}}\)  
Total solar intensity, W/m\({}^{2}\)  
m\({}^{\bullet}\)  
Mass flow rate, kg/s  
Q\({}^{\bullet}\)  
Heat transfer rate, kW  
t Temperature, \({}^{\circ}\)C  
W  
Humidity ratio, g\({}_{\rm{v}}\)/kg\({}_{\rm{a}}\)  
W\({}^{\bullet}\)  
Power, kW  
Greek symbols  
\(\eta\)  
Efficiency  
\(\eta_{\rm{F1}}\), \(\eta_{\rm{F2}}\)  
Efficiency of the desiccant wheel  
\(\epsilon\)  
Effectiveness  
\(\Delta\tau\)  
Time, hours  
Subscript  
a Air/dry air/actual  
atm
Atmosphere  
avg
Average  
BS  
Basic system  
cond  
Condenser  
Evap  
Evaporator  
g
Generator  
hum
Humidifier  
HE  
Heat exchanger  
i = 1, 2, 3  
Index referring to various positions of the desiccant system  
imp
Improvement  
in
Input  
ind  
independent  
ma  
Moist air  
v  
Water vapour  
reg
Regeneration
R,a  
Return air  
Pa
Process air  
P Pump  
t  
Turbine  
w
Seawater  
1, 2, 3,....  
State points  
**Abbreviations**  
BS Basic system  
COP  
Coefficient of performance  
DCS  
Deisccant cooling system  
GOR  
Gain output ratio  
HDH  
Humidification dehumidification  
ICE  
Internal combustion engine  
IS-I  
Improved system-I  
IS-II  
Improved system-II  
KSA  
Kingdom of Saudi Arabia