A Cabin CO2 Adsorption System for a Novel Medium-range Aircraft Concept
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In the ATLAS project, a concept study of a medium-range aircraft was carried out. For this purpose, novel technologies such as the extraction of oxygen, the control of CO2 in the cabin air as well as hybrid laminar flow control were investigated and evaluated with regard to the entire aircraft. CO2 filtering has the potential to save energy in the ECS system and reduce the specific fuel consumption. Different concepts were investigated that use thermal and electrical energy for the operation of the system. By using electrical energy the extraction of bleed air from the engines can be reduced. Thus may create the possibility to renounce the bleed air system in the long run. For the implementation of the CO2 filter system various filter materials such as aerogels and zeolites were investigated. Aerogels offer not only the possibility to adsorb CO2 but also very good insulation properties which makes this material interesting for aircraft construction. Zeolites on the other hand are proven materials which are of interest due to their high adsorption capacity. During the project different system architectures were examined and evaluated with regard to the design driving system parameters. Based on the results and insights gained, a possible system for integration into the concept of a medium-range aircraft will be presented.