Final answer:
14th-stage bleed air is normally used for cabin pressurization in aircraft systems. In the aeronautics industry, a thermodynamics engineer could work on systems like Thermawing, an anti-icing and deicing technology, and Thermacool, an innovative electric air conditioning system for aircraft.
Step-by-step explanation:
The question asks about the normal use for 14th-stage bleed air in aircraft systems. The correct answer is c) Cabin pressurization. Bleed air from the 14th stage of an aircraft's engine compressor is commonly used in various systems on board an aircraft, such as pressurizing the cabin, which is essential for maintaining a comfortable and safe environment for passengers and crew at high altitudes. This air is also used for other functions such as wing anti-ice and engine starting, but in this context, cabin pressurization is the primary purpose mentioned.
In the aeronautics industry, a thermodynamics engineer might be involved in various tasks relevant to the principles of thermodynamics. This could include evaluating the thermodynamic properties of aircraft systems and ensuring they operate efficiently under different conditions. Using the content provided, Thermawing would be an example of such a system that a thermodynamics engineer might work on. It is a DC-powered air conditioner referred to as Thermacool, and a high-output alternator to support it. Thermawing offers anti-icing and deicing capabilities for aircraft, utilizing heated wing technology. Meanwhile, Thermacool refers to an innovative electric air conditioning system that uses an energy-efficient, brushless DC motor, which can be operated before the engine starts.