Case Study: HEPA knocks out need for water washing in air inlet filters of gas turbines

Alliance Pipeline tested hydrophobic (High-Efficiency Particulate Air) HEPA filters on two of its pipeline compressors. In a year of field testing, Alliance found that these filters had the same pressure drop as existing, lower efficiency filters, and that they eliminated the need to shut down compressors for off-line water washing (OLWW).