Differential expansion in a steam turbine refers to varying rates of thermal expansion among its components.
As steam flows through, different parts heat up and expand at different rates due to material differences. This can stress the turbine’s elements, like the rotor, casing, and blades, risking damage or failure if uncontrolled. To manage this, engineers use monitoring systems and compatible materials to mitigate the risks, ensuring the turbine’s reliability and efficiency in power generation.
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