Periodic Reporting for period 2 - EC2S (ENVIRONMENT CONTROL SECONDARY SYSTEM)
Reporting period: 2020-04-01 to 2021-09-30
The main objectives of the project are :
• Objective 1: To define the architecture of the recirculation-air treatment system that regulates air treatment and optimizes the mix of outside and treated recirculated air, based upon airframer requirements.
• Objective 2: To map technologies in term of maturity and commercial availability for choice decision about technologies integration in the demonstrator
• Objective 3: Promote innovative technological bricks for specific air treatment functions.
• Objective 4: Build a demonstrator of an innovative Recirculation-air treating system in the REG Demonstrator.
The design and sizing of the prototypes has been performed by simulations and definition of each technological brick has been based on experimental characterizations at the labscale:
- Innovative technology of PES (Electrostatic precipitation) of Particle matters
- Photocatalytic treatment of VOC
- Dimensioning & optimization of CO2 adsorbing filter & recirculation process.
Additionally, the sensors integration & development for miniaturization and fine tuning of sensitivity to targeted poluttants have been realized and the monitoring preliminary architecture has been validated commonly to the system PDR milestone.
During Period 2, the scale 1 demonstrator has been manufactured, with each techno bricks and ducting, and installed in Lab installation at Tera Environnement. First tests and trials have been performed at Tera Environnement and confirm the validity of the EC2S system.
Test campaign at demonstrator level have not been performed yet due to Cleansky 2 misalignement for REG cabin ground demonstrator availability.
Alternative test campaign at Fraunhofer is planned sept 2022.
Hence, EC2S demonstrate an unprecedented set of technologies in order to reach higher premium level of filtration to improve the recirculation of air in the cabin.
By consequence the EC2S project offers improved monitoring of cabin air quality while opening to fuel consumption & CO2 emissions gains by offering more flexibility on recirculation phases during key energy demanding flight phases.
Performances will be measured at Fraunhofer in the context of REG cabin ground demonstrator (sept 2022)