New Developments in the Application of Online Reciprocating Engine & Compressor Pressure Monitoring Systems
Williams Gas Pipeline-Transco System operates 41 compressor stations from South Texas to NewJersey. By the end of 2006, 121 out of a total of 307 reciprocating engine-driven compressors in those stations will be monitored locally and remotely through an advanced continuous pressure monitoring anddiagnostic system. This continuous pressure monitoring (CPM) system utilizes crankshaft-referenceddynamic pressure measurement and advanced automated software analysis of power cylinders and compressor cylinder ends to accurately detect malfunctions, provide easily understood diagnosticmessaging, and enable unit-to-unit economic performance comparisons over the Williams Gas Pipelinewide area network. Since first presented at this conference in 2003, this paper will examine new developments in the applied hardware and software technology enabling analysis of engine/compressordata now on an exception basis or only as required by indication from the systems automated diagnostics. Originally a secondary benefit of high pressure fuel injection retrofits to reduce emissions,CPM systems are now justified and installed for their added value alone in monitoring the mechanical condition, performance and operating costs of units without high pressure fuel injection systems.