Question 168Gas Turbine - Assistant Engineer

The correct answer is D) Minimal pressure drop of the gases between the compressor outlet and the flame area. The short length of the can-annular combustion chamber helps to minimize the pressure drop of the gases as they flow from the compressor outlet to the flame area. This is because the shorter distance the gases need to travel reduces the amount of friction and resistance, resulting in a lower overall pressure drop. This is a desirable condition as it allows the engine to operate more efficiently and extract more power from the combustion process. The other answer choices are incorrect because a short combustion chamber would not necessarily provide maximum pressure drop (A), decreased combustor temperature (B), or increased combustor temperature (C). The key benefit of the short chamber design is the reduced pressure drop, which is the correct explanation.