The Blower Heat Reactivated Dryer works on the principle of Thermal swing. The desiccant adsorbs moisture from the compressed air to deliver dry air. The desiccant bed saturates over a period of time. The saturated bed is regenerated by heating with hot air generated using a blower. Hence, the dryer is called blower heat reactivated desiccant dryer. The temperature of the bed swings between the compressed air temperature and the regeneration temperature is called Thermal swing type. The hot air from the blower passed through a heater. This makes the air very dry. The hot air then heats up the desiccant bed. When the bed is heated, it gives up the moisture adsorbed and is ready for adsorption. The hot air carries this moisture to the atmosphere. After the regeneration, the heated desiccant bed is cooled by the flow of air to suit the application conditions. Final cooling is achieved by a no loss compressed air cooling method, resulting in a no Dewpoint spike system.  

Trident dryer comes with a dewpoint based control system as a standard. The tower changeover takes place only when the bed is saturated, resulting in energy saving and extended life. The dryer, with its control valves and controller manages the drying, regeneration and repressurisation of the desiccant columns automatically and thereby delivering continuous dry compressed air. Blower Heat Reactivated Dryers are best suited for applications requiring large volume of compressed air at low dewpoint. For the above conditions the dryer works out very economical energy wise. Trident blower heat reactivated dryers are built from the start for customisation. Since the air volume is large cusomisation delivers substantial energy savings.