What is the main purpose of the stationary interchange seals?

The main purpose of stationary interchange seals is to maintain low leakage between stages within a gas turbine. These seals work effectively to limit the flow of gases between different sections of the turbine, helping to preserve pressure differences that are essential for optimal performance. By minimizing leakage, these seals enhance the overall efficiency of the turbine, ensuring that the energy from the high-pressure gas is effectively utilized as it passes through various stages of the turbine.

This function is critical, as high leakage would lead to a loss of efficiency, resulting in decreased power output and increased fuel consumption. Therefore, the design and implementation of these seals are vital for the proper operation and performance of gas turbine systems.