What is an important quality of air used for cooling in a gas turbine system?

For efficient cooling in a gas turbine system, it is crucial that the air used is dry. Moist air contains water vapor, which can lead to various issues such as corrosion, inefficiencies in the cooling process, and potential damage to components. Dry air helps ensure optimal heat transfer and prevents the formation of ice or condensation, which could obstruct airflow and reduce system performance.

Using dry air also contributes to maintaining the necessary temperature and pressure conditions within the turbine, thereby enhancing its operational efficiency and longevity. In contrast, heating the air, compressing it, or introducing moisture can create problems that detract from the performance of the gas turbine system. Hence, maintaining a dry air quality is fundamental to the proper functioning and reliability of gas turbine operations.