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Energy Recovery Rate from an Electric Air-Cycle System under the Cruising Altitude and Speed
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 16, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Event: AeroTech Europe
A new electric air-cycle system of aircrafts is investigated focusing on energy recovery from the exhaust air. The working fluid of air has the higher energy level in the cabin than in the outside during the cruise because the outside air is at low pressure and low temperature. In the system, by setting a recovery turbine behind the cabin, the discharged energy can be collected, although the working fluid through the system has been only discharged from the cabin into the outside. We perform a thermodynamic cycle-analysis, where the temperature, pressure, entropy, etc. are calculated at each position of the cycle by considering the two pressure ratios of the compressors as variable parameters to show T-s diagram. In addition, we obtain an energy recovery rate of the recovery energy to the necessary power for the electric compressor. The energy recovery rate is roughly estimated 40-80% under the reasonable practical operating conditions.
CitationAdachi, T., Seki, N., Oyori, H., and Muraoka, M., "Energy Recovery Rate from an Electric Air-Cycle System under the Cruising Altitude and Speed," SAE Technical Paper 2019-01-1905, 2019, https://doi.org/10.4271/2019-01-1905.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Santos, A.P.P. et al. , “A Thermodynamic Study of Air Cycle Machine for Aeronautical Applications,” International Journal of Thermodynamics 17:117-125, 2014.
- Yang, H. et al. , “Experimental and Theoretical Study on a Novel Energy-Saving ECS for Commercial Airliners,” Applied Thermal Engineering 127:1372-1381, 2017.
- Yang, H. et al. , “Design Analysis of Power Recovery Systems for Cabin Exhaust Air,” Procedia Engineering 121:248-255, 2015.
- Propath Group, “Propath: A Program Package for Thermophysical Properties of Fluids,” Version 7.1 1990.