Advanced solar assisted desiccant and evaporative cooling system equipped with wet heat exchangers

► Indirect evaporative cooling has been optimized in an existing solar DEC-air handling unit. ► The rotative heat exchanger has been replaced with two flat plate cross-flow heat exchangers wetted by spray nozzles. ► Energy performances were notably increased due to the modifications done. ► Thanks to a lower use of auxiliary cooling energy, primary energy consumption has been reduced.