Browsing by Author "Ravikovich, Yury"

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    System architectures for thermal management of hybrid-electric aircraft - FutPrInt50
    (IOP, 2022-02-15) Affonso Jr., Walter; Tavares, Renata T.; Barbosa, Felipe R.; Gandolfi, Ricardo; dos Reis, Ricardo J. N.; da Silva, Carlos R. I.; Kipouros, Timoleon; Laskaridis, Panagiotis; Balaghi Enalou, Hossein; Chekin, Andrei; Kukovinets, Aleksey; Gubernatorov, Konstantin; Ravikovich, Yury; Ivanov, Nikolay; Ponyaev, Leonid; Holobtsev, Dmitry
    Electric and Hybrid-Electric Aircraft (HEA) propulsion system designs shall bring challenges at aircraft and systems level, mainly in propulsion, electric and thermal management systems (TMS). The electrification of the propulsion system relies on large and high-power electrical equipment (e.g., electrical motors, converters, power electronics, batteries, and others) that dissipate heat at a rate at least one order of magnitude higher than conventional propulsion aircraft systems. As a result, high impacts on weight, drag and power consumption of the TMS/cooling systems at the aircraft level are expected. This paper proposes potential technologies to perform the thermal management of future electric and HEA, in the context of FUTPRINT50 project. For each technology, relevant aspects such as its integration to aircraft, safety, operational and maintenance impacts, certification, technologies readiness level (TRL) and the latest research works are analysed. A quantitative comparison of the several technologies is also proposed considering weight, volume, electric power consumption, pneumatic air flow and cooling air flow per cooling effect. Lastly, we present a set of potential TMS architectures for HEA.
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    Thermal management challenges for HEA–FUTPRINT 50
    (IOP, 2021-01-22) Affonso Jr., Walter; Gandolfi, Ricardo; Nunes dos Reis, Ricardo Jose; da Silva, Carlos Roberto Ilário; Rodio, Nicolas; Kipouros, Timoleon; Laskaridis, Panagiotis; Chekin, Andrei; Ravikovich, Yury; Ivanov, Nikolay; Ponyaev, Leonid; Holobtsev, Dmitry
    Electric and Hybrid-Electric Aircraft (HEA) incorporate new systems, which demand an integration level higher than classical propulsion architectures systems do. High power electrical motors, converters, batteries or fuel cells, and distributed propulsion, all introduce new kinds of heat sources and dynamics that have to be accounted for and regulated. The latent opportunity to explore synergies among these systems requires the development of new models and their coupling with multi-disciplinary design optimization (MDO) toolchains. Also, an understanding of the implications into aircraft operations and trade-offs are critical to evaluate and validate gains at the aircraft level. This paper provides a definition of thermal management and functions of thermal management system (TMS) in aircraft, HEA thermal management challenges, main opportunities, conclusions and the way forward. A discussion of road ahead, regarding development of capabilities to support the design of TMS will be brought to the fore along the project, showcasing the open approach of FUTPRINT50 to be driven by open collaboration in order to accelerate the entry into service of this type of aircraft.