Browse Publications Technical Papers 2020-28-0497

Modeling and Simulation of a Fighter Aircraft Cabin Temperature Control System Using AMESim 2020-28-0497

Environmental Control System (ECS) of an aircraft is a complex system which operates classically in an air standard refrigeration cycle. ECS controls the temperature, pressure and flow of supply air to the cockpit, cabin or occupied compartments. The air cycle system of ECS takes engine bleed air as input. Parameters like bleed air pressure and temperature, mass flow, the external factors like ambient temperature, pressure, and aircraft attitude affect the performance of ECS to a large extent especially during transient. So, it is very important to consider the transient characteristics of these parameters in the design stage itself in order to ascertain the dynamic response of the system. This paper explains in detail the importance of transient input characteristics during the detailed design of ECS. A typical temperature control scheme for combat aircraft ECS has been studied and modeled in LMS AMESim. Cases of transient response of temperature control system are simulated and confirmed with actual scenario. The validated model and results can be used in designing a better control on ECS.


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