🔍 Key Concepts

• Energy conversion stages in a reaction turbine • Difference between thermal energy, kinetic energy, and mechanical energy in steam flow • Role of nozzles versus blades in a turbine stage

💭 Think About

• In a reaction turbine stage, where does the steam experience a pressure drop that turns heat/pressure into high velocity flow? • Which components mainly change the direction of an already fast jet, and which components create that fast jet in the first place? • Think about impulse vs reaction: which part of the stage acts like a nozzle?

✅ Before You Answer

• Identify which component(s) function like a nozzle (accelerating the steam and increasing its velocity). • Separate in your mind the step that creates kinetic energy from the step that extracts it as shaft work. • Check basic diagrams of a reaction turbine stage: where is the largest velocity increase shown?