Category Title
Accurate cylinder pressure measurements for either compressor performance determination or diagnostic purposes from high speed/high ratio reciprocating compressors has been severely restricted due to the large distortions in the data as measured at the end of the pressure port. This has led to a situation where new units are being designed and installed, and both the performance of these units and the acoustic design procedures used in installation can neither be verified nor improved. The GMRC has recognized the potential problems associated with this situation and has funded a two-year research effort to provide for methods that will accurately resolve the cylinder pressure from high ratio/high speed units. Ultimately, resolution of the performance measurement restrictions will improve the piping design capabilities to ensure problem free operation and adequate compressor performance. This paper presents the results of this effort. Specifically, a modeling and data correction algorithm is discussed which has shown significant capability in producing accurate cylinder pressure records from data acquired at the end of the pressure port. The capabilities of the approach are presented for both CO2 and natural gas for a speed range of 750 rpm to 1200 rpm, with ratios in excess of 3.5.
Your Price $195.00
List Price $195.00