Depth filters used in multistage filter systems adeptly clean the intake air of gas turbines, preventing damage and increasing performance. However, estimation of their service life is based on empirical data and/or standardized testing procedures, e.g., ISO 16890. By applying standardized synthetic test dusts at constant reference humidity, these testing procedures do not reflect application-typical loading conditions. Based on a direct comparison with field data, the influence of temporary exposure to high relative humidity on differential pressure and particle deposit structure is investigated. The results indicate that simulating humidity variations of the ambient atmosphere during filter tests leads to particle deposits, which more accurately reflect the actual behavior during operation.

中文翻译：

---

基于燃气轮机应用过滤器分析的过滤器测试中的湿度考虑

多级过滤系统中使用的深度过滤器可以巧妙地清洁燃气轮机的进气，防止损坏并提高性能。然而，其使用寿命的估计基于经验数据和/或标准化测试程序，例如 ISO 16890。通过在恒定参考湿度下应用标准化合成测试粉尘，这些测试程序不反映应用的典型负载条件。基于与现场数据的直接比较，研究了暂时暴露于高相对湿度对压差和颗粒沉积结构的影响。结果表明，在过滤器测试期间模拟环境大气的湿度变化会导致颗粒沉积，这更准确地反映了操作期间的实际行为。