A linear control variable yields a uniform surge margin across the full operating range and simplifies both closed-loop and ...
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 ...
A shift to angular and polar coordinates offers control engineers a more physically rigorous, PID-friendly approach ...