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The Computer Controlled Adsorptive Air Drying Unit, "QSAC", unit consists of a damp air drying plant by adsorption through a process of continuous regeneration of the adsorbent with transparent columns. It is formed by two different circuits, each powered by its own compressor and heated by its own heat exchanger, and each one has a column that can be used for both adsorption and desorption. For the adsorption process, a compressor, controlled by the computer, is used to transport ambient air from the environment to the process inlet. This flow can also be controlled by means of a valve. The air is directed towards a humidifier to reach its maximum relative humidity. The humidifier consists of a water bath, which is cooled by a refrigerating unit and a pump, to drive the cooled fluid to the water bath to maintain the temperature stable. This temperature is controlled by means of a PID control. At the outlet of the humidifier, the air reaches a heat exchanger where it is heated to regulate the temperature and the relative humidity of the air, which is controlled by means of a PID control. The wet air enters the adsorption column through the bottom and passes through the adsorben