A linear control variable yields a uniform surge margin across the full operating range and simplifies both closed-loop and ...

A shift to angular and polar coordinates offers control engineers a more physically rigorous, PID-friendly approach ...

The capacity of a compressor is measured in Btu per hour (Btuh) or Btu per minute (Btu/min). Remember, there are 12,000 Btuh or 200 Btu/min in one ton of refrigeration. The capacity of a piston-type ...

The APR control provides full-capacity modulation for direct-expansion a/c systems of all sizes. Responding to changing conditions, the unit controls temperature and humidity to maximize comfort and ...

At the heart of a commercial vehicle’s air brake system is its air compressor, which pressurizes air in the primary and secondary tanks to provide power for the air brakes and other pneumatic systems.