ECS Schemes for All Electric Airliners

This paper introduces the concepts and state-of-the-art advances on which the All-Electric Airliners will be based, discusses present practice and experience in the design of ECS and derives some ground rules and guidelines for generating new ECS schemes. Based on these, two examples of system schematic layout (Vapor Cycle and Recircair) are presented. Innovative development needed for execution of the systems is highlighted. The conclusion is that the systems are feasible and advantageous, but work on translating into practice should be started as soon as possible.