Abstract
Jordan is a mechanical engineer with a wide range of domestic and international design, field, and monitoring experience with compressors, pumps, piping, and other production machinery. He has specialized skills in vibration, performance, and troubleshooting in onshore and offshore production facilities. Jordan has been with BETA Machinery Analysis (BETA) for the last 12 years, during which time he has authored and co-authored several papers. He was formerly responsible for BETA's Malaysia partial differential equations (PDEs) in spatial and temporal domain, which describe the true dynamic characteristics of the flow through the various piping elements, the compressor itself, to provide much more accurate predictions of surge control system behavior during fast transient events. Comparisons are made to field measurements to provide model validations, and an example application (Case Study) of three units operating in parallel. The first two (Units 6 and 7) were existing in a compressor station, while the third (Unit 8) was an add-on. The addition of Unit 8 meant a number of station layout modifications, which included: re-wheeling of Units 6 and 7 (i.e., change the compressor impellers); adding after gas cooling; and relocating the anti-surge valves downstream of the coolers to allow for both hot (fast stop) and cold recycle (anti-surge) capabilities. Due to the addition of equipment and significant reconfiguration of station piping and valves, a dynamic surge analysis on Units 6, 7, and 8 was required to determine whether the existing anti-surge and fast stop valves were adequately sized and whether the anti-surge valves could be relocated downstream of the gas coolers. A new fast stop recycle system was added along with Unit 8, which also needed to be adequately sized. Further complications arose from the fact that Unit 6's anti-surge valve configuration differs from that of Unit 7 and that Unit 6 has twin recycle valves jointly serving as anti-surge valves with a single fast stop valve while Unit 7 has a single antisurge valve and a single fast stop valve. -zero flow head coefficient (equal to 1.0 for loss free impeller, and approx. equal to 0.4-0.6 to account for losses).
Showing the abstract — retrieve the full paper via the Exa API.