Performance evaluation and cost analysis of MOF-303-based adsorption desalination and cooling systems using experimental dynamic data

Climate change and population growth intensify the challenges of limited energy and water resources. Desalination, while providing fresh water from seawater, is energy-intensive and resource-demanding. Therefore, this study is the first to investigate the feasibility of MOF-303 as an adsorbent in a two-bed adsorption cooling desalination system (ACDS). Based on the literature, a series of dynamic experiments was conducted to evaluate the performance of MOF-303 across regeneration temperatures ranging from 40 °C to 80 °C, revealing its high kinetic responsiveness and superior thermal behavior. Moreover, Detailed analyses of heat capacity and effective diffusion coefficients across different cycle times and operating conditions provide new insights into the thermal and mass transfer dynamics of the ACDS system. A thermodynamic model of the system (ACDS) using MOF-303 measured properties was developed, validated, and used to investigate its performance under various operating conditions. The results of the parametric study and the radar charts indicated that the optimal conditions are a 700-s cycle time and regeneration temperature of 85 °C, yielding a coefficient of performance (COP) of 0.584, more 13 % than silica gel, specific daily water productivity (SDWP) of 13.02 m3/ton.day, and a water production cost of 0.0909 $/kg. Further, the techno-economic feasibility of the ACDS using MOF-303 has the potential to enhance the water productivity and cooling performance while reducing energy and economic costs. MOF-303 shows potential as a key material in the development of eco-friendly cooling and desalination systems.