A heat recovery steam generator (HRSG) is a heat exchanger in a combined-cycle natural gas power plant that captures heat from the gas turbine's exhaust and uses it to generate additional electricity. HRSG performance plays a crucial role in the overall efficiency and output of combined-cycle plants. An important part of maximizing combined-cycle plant performance involves maintaining clean, efficient heat-transfer surfaces in HRSGs.
This article discusses HRSG cleaning methods, the industry trends that are increasing the importance of cleaning strategies, and considerations when selecting a cleaning approach.