Easy and effective1 Compressed air flows through the core tube, and is then diverted to the membrane element in the ground area. The compressed air which is still humid, runs through the highly selevtive hollow fiber membranes of the membrane element inside. 2 Purge air, required for drying, diverges continuously at the outlet area of the membrane element and is decompressed atmospherically using a defined nozzle orifice. Due to decompression, this purge air is considerably dryer, as humidity contained in the compressed air now fills the multiple of the volume. The dry purge air passes the exterior of the membrane fibers. 3 As a result, two air flows with a different moisture content move in reverse flow through the membrane element, separated only by the membrane wall. Inside the membranes, humid compressed air flows and dry purge air passes outside. On account of the varying moisture content, moisture from the compressed air diffuses into the purge air. As regards the drying procedure, use of the TWIST 60 technology results in maximum efficiency. 4 Compressed air is dried when leaving the membrane element. 5 Humid purge air is released into the environment. |
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compressed air purge air |
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TWIST 60 Twist 60 represents the unique arranged winding of the membrane fibers: the fibers build up in layers around the center tube of the membrane element, each layer crosses the one before. The purge air is distributed effectively in the whole membrane element, thus using maximum available contact surface. The result is a highly efficient drying process. The winding significantly reduces space requirements. |