Centrifugal Compressor Efficiency Improvement Case Study

This case study outlines the collaboration between MAN Energy Solutions and Greene Tweed to enhance the efficiency of centrifugal compressors through the implementation of Arlon® 4020 labyrinth seals. The objective was to reduce internal leakage within compressor stages, which could lead to significant energy and cost savings. The study details the analysis conducted to identify design constraints and the introduction of advanced thermoplastic seals that promise improved performance and durability. Testing confirmed an efficiency gain of approximately 1 to 1.5%, correlating well with theoretical predictions. The long-term performance of the seals was evaluated after eight years of operation, revealing minimal wear and no significant corrosion-related degradation. The findings demonstrate the effectiveness of the Arlon® 4020 labyrinth seals in achieving sustained efficiency improvements, resulting in substantial lifecycle cost savings for MAN Energy Solutions. This case study provides valuable insights into the practical application of innovative sealing solutions in turbomachinery.