🔍 Key Concepts

• Gas turbine basic flow: compressor → combustion chamber → turbine → exhaust • What it means to add exhaust heat back into the cycle (heat recovery vs. once‑through flow) • The difference between open, closed, and regenerative gas turbine cycles

💭 Think About

• Which option specifically refers to using the hot exhaust to pre‑heat the compressed air before it enters the combustion chamber? • In a truly closed cycle, does the working fluid (air/gas) leave the system to the atmosphere, or does it stay inside and get reused continuously? How does that compare to most marine gas turbines? • Look at the phrase "between the compressor and combustion chamber" – which cycle type is known for having a heat exchanger in that location?

✅ Before You Answer

• Match the phrase "added to the air charge between the compressor and combustion chamber" to the correct cycle definition in your engineering materials • Verify which cycle uses a heat exchanger/recuperator/regenerator to recover exhaust heat • Confirm whether open and semi-open cycles normally reuse exhaust heat, or simply discharge the exhaust to atmosphere or another sink