The present work describes a silica gel + water adsorption-based desalination and chiller system, an emerging low cost process of integrating thermal desalination and cooling by utilizing low-grade heat. The cycle employs a combination of flash evaporation and thermal compression of steam in single/two stage to generate the dual effect. The current study aims at simulating a four-bed/stage adsorption system using energy and mass balance along with kinetics of adsorption. The performance of single- and two-stage adsorption systems is compared for ambient temperatures in the range of 25–45 °C and a constant heat source temperature of 85 °C.

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