Aerospace

Aircraft Electric Environmental Control System (eECS)

Models an electric Environmental Control System (eECS) for a commercial passenger aircraft. Unlike traditional pneumatic systems that bleed hot air from the engines, this architecture uses electrically driven turbochargers to compress fresh ram air, improving engine efficiency and reducing fuel consumption. The model simulates a complete air conditioning pack including an electric turbocharger (ETC), a fuel-cooled heat exchanger, an air cycle machine (ACM), a thermal management system with primary and secondary heat exchangers, and cabin thermodynamics with passenger thermal and moisture loads. A hybrid control strategy combines open-loop feedforward commands based on the stages of the flight cycle with closed-loop PI regulation of cabin pressure, temperature, and air flow. The simulation covers a full flight cycle from ground taxi through climb, cruise, descent, and landing.