Compressed Air Best Practices - October 2008 - (Page 24) | 10/08 Focus Industry AUTOMOTIVE TRANSIT | CLASS ZERO AIR MEASURES RACE CAR PERFORMANCE Left to Right: Clinton Gentz (Atlas Copco), Brian Nelson (Windshear) and Jim Bruce (Atlas Copco) standing underneath the Rolling Road. The Solution The Atlas Copco Z Series is a positive-displacement, oil-free, rotary-screw air compressor. The installation is made up of two ZT250 air-cooled machines which provide the base-load air. Fluctuations in demand are taken care of by a ZT315 VSD (Variable Speed Drive) air compressor. With positive displacement compressors, brake horsepower (bhp) will remain nearly constant summer to winter. Yet, in the winter, the screw compressor will deliver significantly more mass flow while maintaining bhp nearly constant. In other words, being a positive displacement compressor, the rotary screw compressor’s energy is only slightly effected by changes in air temperature. The Variable Speed Drive (with partial load control down to 30% of full load) matched the required demand and efficiently provides constant pressure delivery within ±1 psig. 24 www.airbestpractices.com http://www.airbestpractices.com
For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.