Propulsion Systems Design (cont.) 08:50 - 10:30
Florian Hilpert Manager hybrid electric aircraft, Fraunhofer-Gesellschaft and group leader aviation power electronics Fraunhofer IISB GERMANY
Concept of electrical power transfer for turbofan engine performance enhancement
Serhiy Bozhko Director Institute for Aerospace Technology, University of Nottingham UK
Dr Tao Yang Associate professor of aircraft electrical systems power electronics, machines and control group University of Nottingham UK
Turbofan engines are designed for optimum performance in cruise conditions, with certain operational constraints in other flight scenarios due to thermodynamic coupling between low-pressure (LP) and high-pressure (HP) shafts. Considering that in the more-electric engines (MEE) the power is considered to be extracted by electrical machines that are mounted on both the HP and LP shafts, the study investigates the potential of further engine performance improvements by controlled electrical power transfer between the shafts, seeking for optimized operation depending on engine operating mode (EOM).
ATI next-generation aircraft concept studies based on the Pacelab environment for aircraft and systems architecture design
Alexander Schneegans Managing partner PACE Aerospace Engineering & Information Technology GmbH GERMANY
Mark Scully Head of technology - advanced systems and propulsion Aerospace Technology Institute UK
The ATI is building a future vision for air transport for 2050 and beyond. This includes continuing to build our capabilities and understanding of both conventional and less conventional air vehicles. The ATI has been working closely with PACE to develop the whole-aircraft modeling platforms capability using the Pacelab APD toolset. This will enable the benefits and wider impacts of new technologies to be understood at whole-aircraft level. Complementing this development, the ATI has launched development of a national systems virtual validation platform to enable concept evaluation of new systems technologies to be performed. This is being developed by ATI using the Pacelab SysArc toolset, and the system models can then be deployed with both conventional and non-conventional aircraft models. In response to ATI’s requirements, PACE is further extending the capabilities of its model-based design platforms to address specific technological areas. These include the rapid setup of less conventional airframe configurations and hybrid propulsion systems for application in commercial aviation as well as in the upcoming air mobility market. Key to this is the ability to easily run trades on the degree of hybridization of installed thrust as well as its optimum use during flight. The platform will enable the ATI to model and simulate promising system technologies to help steer the technology roadmap.
Impact of hybrid electric propulsion technologies on aircraft operators
Dr Abhishek Sahai Specialist and technical lead aircraft electrification ADSE Consulting and Engineering NETHERLANDS
The presentation will look at the impact of new aircraft technologies on aircraft operators in terms of cost and revenue potential. It will focus on aircraft equipped with hybrid electric technologies via some case studies including an aircraft employing boundary-layer ingestion using hybrid electric architectures. It will analyze the benefits and drawbacks of such aircraft for operator economics and environmental performance, and which measures would be necessary to yield competitive hybrid electric aircraft.
The boosted turbofan for electrified aircraft: the TRADE perspective
Dr Michael Sielemann Aerospace industry director Modelon GERMANY
The boosted turbofan is a highly relevant concept to achieve improvements in fuel efficiency and emissions, which are required due to the amount of air travel worldwide. Limited detailed results have been reported on the boosted turbofan concept taking constraints from the gas turbine cycle and the electrical system into account (e.g. impact on surge margin, interaction with handling bleed). This presentation summarizes the results of the Turbo electRic Aircraft Design Environment (TRADE) project, which develops a physics-based simulation/optimization platform for such applications. Results are presented and discussed in relation to the (still limited) scientific literature.
10:30 - 11:00
General Aviation Concepts and Technologies 11:00 - 17:00
Dr Martin Nagelsmit Program manager electric flight Royal Netherlands Aerospace Centre NETHERLANDS
Hybrid propulsion airplanes – market and experience
Miguel Angel Suarez Sanchez CEO Axter Aerospace SL SPAIN
The presentation will offer an introduction to parallel, series-hybrid and full-electric propulsion for aviation, and outline the benefits of parallel hybrid for light and general aviation. It will also cover experience with parallel-hybrid configuration with light airplanes (two and four seaters), real test data and customer experience, the hybrid market and society demands, and the next steps in hybrid technology development.
Ampaire: delivering practical, compelling electric aircraft
Kevin Noertker Co-founder and CEO Ampaire Inc USA
Ampaire is test flying the world's largest hybrid electric plane, with plans to conduct demonstration flights on commuter airline routes in the coming months. The company is on the fast track to introducing cleaner, quieter, less costly aircraft to benefit airline and general aviation operators, and improve the passenger experience. The future begins with in-service aircraft adapted for electric propulsion and proceeds to exciting new, clean-sheet, high-performance all-electric aircraft. Hear first hand from Ampaire's co-founder and CEO Kevin Noertker about Ampaire's vision, plans and industry-leading progress toward making a new era of electric aircraft a reality.
More-electric aircraft concept applied to regional jets
Hernane Catanoso Lino de Souza Aircraft system development engineer Delta System Solutions GERMANY
The objective of this work is to understand why the MEA concept is not used for new regional jet development. The goal is to present a parameter to be calculated during the initial development phases, considering the following parameters: MTOW, maximum range and fuel volume. The parameter should be capable of identifying if a new development should be developed by MEA or conventional technologies.
Analysis of a convertible aircraft concept with a hybrid powerplant
Andrey Redkin Lead engineer TsAGI RUSSIA
Research has been carried out to determine the rational concept and operating efficiency of a convertible aircraft with a multirotor lifting system and a hybrid powerplant for passenger transportation to remote settlements without airfields. In this paper, several concepts of convertible aircraft were analyzed. They differ in the following key features: the number and location of the lifting rotors; the method of fixing, folding and retraction for lifting rotors, or the use of tilt rotor groups; the main cruise engines and rotor (propeller) positioning; and the new wing geometry.
12:40 - 14:00
Scylax E10 all-electric aircraft
Rosario De Luca CEO Scylax GmbH / EADCO GmbH GERMANY
Calin Gologan CEO Scylax GmbH / Elektra Solar GmbH GERMANY
With air traffic doubling every 15 years, aviation emissions are increasing by 4.5-6% a year. Governments have called for a 75% reduction in carbon emissions per passenger kilometer by 2050. The current fleet in the category of Scylax E10 is huge and dominated by aircraft that mainly started in the early 1970s with fuel consumption above 35 liters (10-12 gal) per hour per engine. The all-electric aircraft could build a real new market to replace the current old fleet with piston engines and turboprop propulsion.
E-rop – electric and rotary-engined hybrid plane
Stefan Senger CEO AdvanTec GmbH GERMANY
E-rop is a development project of a single-seat plane, equipped with an electric engine in the nose (front electric sustainer) and a Wankel generator combination (REX) in the rear compartment. The main battery is positioned in the wing. With the combination of batteries and the REX, the plane is able to fly more than 2,500km.
Technical challenges in designing electrical machines for eVTOL applications
Dr Mircea Popescu Chief technology officer Motor Design Ltd UK
James Z de Ferranti General manager Denis Ferranti Group UK
Electrical machines for aerospace in general and particularly for eVTOL applications require high power and torque density and safe operation for passengers and/or crew. These requirements can be achieved with specific configurations. This presentation shows potential solutions using rare earth permanent magnets or induction and switched-reluctance technology. State-of-the-art materials and innovative technical ideas are required to ensure safe behavior.
15:15 - 15:45
i-UAM – an option to reinvigorate general aviation
Dr Rene Nardi Business development director Alltec USA
I-UAM or inter-urban air mobility, as addressed by this paper, refers to air transportation activities designed for small groups of two to six passengers traveling relatively short distances between two locations, 200-300 miles apart. Those first few hundred miles is where general aviation can make a big impact on business and tourist travelers, going directly where they want and when they want. This paper describes some of the challenges and opportunities that arise once technology with unprecedented power transforms the small general aviation aircraft. The personal aircraft entering into service by 2025 will be simpler to operate and more capable than today’s aircraft.
Metro Hop – the eSTOL solution to urban air mobility
Bruno Mombrinie Founder/CEO Metro Hop USA
Learn more about the Metro Hop plane, an all-electric, short take-off and landing (STOL) airplane made for parcel transport in metropolitan areas and, when regulations allow, as a two-passenger air taxi. Engineered and built in collaboration with the University of Stuttgart e-Genius team, the active landing gear allows this fast plane – which cruises at 220 knots – to take off and land in 60m, making no more noise than an electric car. The plane has a payload of 450kg and a 200km range. This presentation covers the economic and community acceptance requirements for our vision of UAM.
VOLTS and VTOLS
Norman Wijker Head of research and design Samad Aerospace UK
This presentation describes how technology, strategy and a healthy dose of pragmatism all feature in bringing enhanced capabilities to business aviation. The talk will explain the challenges of conventional aircraft design disciplines such as structures, systems, flight physics and propulsion to meet the new opportunities offered by electric energy and power. The result is the e-Starling hybrid electric VTOL business jet, bringing city-center-to-city-center services at twice the speed of helicopters and a fraction of the cost.
Please note: this conference program may be subject to change