Gas turbine degradation

Abstract

In this study the gas turbine compressor fouling mechanism and Online/ Offline cleaning have been investigated. Gas turbine compressor fouling is a serious issue that can reduce the efficiency and performance of gas turbine engines. The problem occurs when foreign particles, such as dust, dirt, and debris, accumulate on the blades of the compressor, causing a reduction in airflow and an increase in compressor outlet temperature. This can lead to decreased output power, increased fuel consumption, and shortened component life. To mitigate the effects of compressor fouling, regular maintenance and cleaning of the compressor blades is required. Additionally, filtration systems can be installed to prevent foreign particles from entering the engine in the first place. Research is ongoing to develop new technologies and methods for detecting and preventing compressor fouling in gas turbine engines. This study examined the economic impact of compressor fouling on operating costs, as well as the effectiveness of various compressor washing techniques. Through the analysis of real engine data from a gas turbine over a four-month period, it was found that compressor fouling led to a 2.5% decrease in efficiency, a 7% increase in heat rate, and a 10% decrease in power output. The study also includes an analysis of the economic impact of compressor fouling on operating costs, as well as the effectiveness of various compressor washing techniques.