The gas turbine inlet and outlet temperatures are 800 K and 300 K. What is the turbine efficiency?

The efficiency of a gas turbine can be calculated using the formula:
η = ((T1 – T2) / T1) * 100%, where T1 is the temperature at the gas turbine inlet (T1 = 800 K), T2 is the temperature difference at the inlet and outlet of the gas turbine (T2 = 800 – 300 = 500 K) …
Let’s calculate the efficiency of the gas turbine:
η = ((T1 – T2) / T1) * 100% = (800 – 300) / 800) * 100% = (500/800) * 100% = 0.625 * 100% = 62.5%.
Answer: The gas turbine efficiency is 62.5%.