Experimental investigation on the performance of radial flow desiccant bed using activated alumina

► We carried out an experimental investigation on the performance of radial flow desiccant bed. ► Activated alumina was applied as the working desiccant. ► Temperature and humidity of air at inlet and exit of the bed were measured. ► Transient variation of air conditions and the bed performance is presented. ► The effect of bed pre-cooling on the system performance was highlighted.