Patent ID: 8580010

Claim:
A desiccant air-conditioning system comprising a regenerating side fan for forming a regenerating side air flow, a processing side fan for forming a processing side air flow, a first desiccant rotor that is disposed bridging a downstream side of a regenerating side air flow path and an upstream side of a processing side air flow path, for continuously adsorbing moisture from the processing side and desorbing moisture to the regenerating side while rotating, a second desiccant rotor that is disposed bridging an upstream side of a regenerating side air flow path and a downstream side of a processing side air flow path, for continuously adsorbing moisture from the processing side and desorbing moisture to the regenerating side while rotating, a first pre-cooling device for cooling air on the processing side prior to adsorption of moisture by the first desiccant rotor, a second pre-cooling device for cooling air on the processing side prior to adsorption of moisture by the second desiccant rotor, a first heating device for heating air on the regenerating side prior to desorption of moisture by the first desiccant rotor, a second heating device for heating air on the regenerating side prior to desorption of moisture by the second desiccant rotor, and an air-conditioned space for receiving supply of air that has been dried of the processing side, for which moisture has been absorbed by the second desiccant rotor, comprising: a water content amount detector detecting the water content amount at a specific location that has been determined in a flow path where in dried air flows on the processing side; a control value determining device determining the flow rate of air on the regenerating side, the speed of rotation of the desiccant rotors, and/or the exit temperature of the air heated by the heating devices, as that which is controlled, and for determining a control value for that which is controlled to cause the water content amount, detected by the water content amount detecting means, to go to a target water content amount; and a second pre-cooling device exit temperature setting device determining a setting value for the exit temperature of the air that is cooled by the second pre-cooling device in accordance with the control value determined by the control value determining device.