Information systems provide pivotal visualizations of performance for machinery in varied conditions. Being able to see how operations change over time can improve future plans and efficiency, but how the data is presented is often challenging to understand. Most of the difficulty comes from the deviations between expected values and actual field values. These discrepancies can come about because of inlet gas contaminations, or changing environment conditions.
Adjusting the expected performance values of centrifugal compressors to more accurately reflect the field values requires constant monitoring of field conditions and analyzing the differences. The methodology in place to accomplish this task is to monitor both the design conditions and the field conditions, but to manipulate design conditions until expected performance matches field performance as closely as possible.
Software is available to crunch the numbers in real-time to provide expected performance figures based on the field conditions. Field conditions such as pressure, tempreature, and relevant gas mixture composition are input through sensors and automated calculations are performed to result in expected compressor performance curves. Other features allow storage of the data in databases for historical trends and later analysis by engineers for future designs.
Click here for the full article by Massimiliano Di Febo and Pasquale Paganini.