Conference Program




Day 1: Tuesday, May 31

Advancements in hydrogen fuel cell technology
11:30 - 12:30

Moderator

Dr Christoph Gentner
Research group leader
German Aerospace Center (DLR)
Germany

11:30

Design of aircraft fuel cell systems for zero-emission flight

Dr Christoph Gentner
Research group leader
German Aerospace Center (DLR)
Germany
Hydrogen is promising as an energy carrier with fuel cells, since the energy conversion produces only air and water as exhaust gas in addition to electrical power and waste heat. A numerical method for the design of aircraft fuel cell systems has been developed to analyze different aircraft sizes, each with specific mission trajectories. The following aspects are particularly considered: the characteristics of core components of the aircraft fuel cell system are represented via validated physical models; sizing issues are solved, with mission-specific optimal operating parameters; and battery hybridization is considered to identify trade-offs in energy efficiency and system mass.

11:50

Utilizing air cooling in HTPEM hydrogen fuel cell systems

Dr Dietmar Trees
Program manager
HyPoint
USA
The core technical challenge with zero-emission aviation/aeronautics is achieving the necessary specific power and energy density. Current battery and hydrogen fuel cell power systems typically fall short for use cases that involve long ranges, frequent trips or heavy loads. In this session, Dr Ivanenko will outline the technological progress of his team’s NASA award-winning turbo ‘air-cooled’ HTPEM hydrogen fuel cell system. HyPoint’s revolutionary approach utilizes compressed air for both cooling and oxygen supply to deliver a high-temperature fuel cell system that is three times lighter than existing systems – representing a total weight reduction of more than 60%.

12:10

Thermal management challenges and technology to unlock zero-emissions aviation

Dr Kathryn Evans
Aerospace lead - applied technologies
Reaction Engines
UK
Thermal management of hydrogen fuel cells and electric powertrains presents a significant challenge for zero-emissions aviation, with high-power components requiring the rejection of significant quantities of low-grade heat to maintain strict operating temperature limits. Microtube heat exchanger technology and novel form factors developed for spaceflight offer low-weight, low-drag solutions to fuel cell radiator and cathode air cooling applications. Ultra-compact foils enable isothermal operation of battery packs for electric and hybrid vehicles. The combination of advanced heat exchanger technology and overall systems integration has the power to unlock zero-emission aviation.

12:30 - 14:00

Lunch

Advancements in battery technology
14:00 - 15:00

Moderator

Diana Siegel
Director of strategy
Electra.aero
Switzerland

14:00

High-energy aviation battery design considerations

George Cintra
Chief technology officer
EaglePicher Technologies
USA
With the current emphasis on next-generation cell technologies to increase specific energy, there are other significant design elements that can diminish the benefit of the improved cell chemistry when realized at the battery/energy storage system level. This presentation will discuss the impacts of design choices, and highlight considerations necessary to achieve an improved battery implementation that preserves the intent of improved cell technology.

14:20

Thermal management challenges with aerospace batteries

Zi Jian Yeo
Senior battery modeling engineer
Electroflight Ltd
UK
Batteries for aerospace applications typically have higher discharge current and more extreme environmental requirements compared to electric cars. This poses additional thermal management challenges, in terms of both heating and cooling the battery cells. The presentation will cover power demand with different aircraft types or applications, battery temperature conditioning requirements and how to design safe and lightweight batteries for aircraft.

14:40

Mastering the challenges of battery safety in electric aircraft

Sören Reglitz
Strategic product manager, aerospace
dSPACE
Germany
Novel concepts for aircraft electrification are introducing the most profound technological changes in the industry in decades. In this context, lithium-ion batteries are increasingly being used for energy supply on board aircraft. However, using this type of battery requires additional safety considerations that need to be covered by battery management systems. These systems continuously monitor the state of health and control the charging and discharging of the battery to avoid critical failures. Therefore, testing of battery management systems is essential. This presentation will focus on battery safety in electric aircraft and highlight different methods for validation and verification of battery management systems.

15:00 - 15:40

Break

Improving power density, weight and efficiency
15:40 - 17:20

Moderator

Wim Lammen
Senior scientist, modeling and simulation
Royal Netherlands Aerospace Centre (NLR)
Netherlands

15:40

Demand for improved systems performance

Dr Evgeni Ganev
CEO
EMPS Consulting LLC
USA
Various electric and hybrid aircraft classes will be presented in light of the latest business environment. The entry into service of different platforms will be projected; relevant requirements will be identified to satisfy various platforms; architectural, systems and components provisions to achieve these platform goals will be presented; and the level of integration, power distribution buses, partial discharge effects, EMI, power quality, high temperature hardware and thermal management will be discussed. The proposed solutions are supported with quantitative data. Electric engines, power generation and distribution systems will all be covered and the progress of electric rotating machines and power electronics components will be reported.

16:00

Considerations for multi-MW electric drive units

Florian Hilpert
Head of aviation electronics
Fraunhofer Institute for Integrated Systems and Device Technology (IISB)
Germany
Electric drivetrains have been introduced successfully into aviation projects over the last few years in the ‘some-hundred-kW’ power class. With the first projects now aiming at MW drive units, there still remains a major technology gap to realize highly integrated and lightweight multi-MW drive units for aviation applications. The presentation will highlight the special challenges in the motor inverter design, together with possible solutions and advantages to be utilized from advanced motor inverter topologies for multi-MW drive units.

16:20

Adapting airframe design to maximize the benefits of electric propulsion

Derek Jordanou-Bailey
Chief engineer
Integral Powertrain Limited
UK
Running electric motors at a higher speed than the fan or propeller maximizes specific power and efficiency whilst minimizing the overall weight of the machine. As motor and inverter technologies stabilize, the combined benefits of optimizing airframe designs, and utilizing compact, high-specific-power electric propulsion units are essential for commercially viable electric flight. This paper discusses the efficiency benefits of adapting the airframe design, together with optimization of the electric propulsion unit in addition to considering practical airframe design requirements related to the choice of energy store.

16:40

Digital thread for hybrid electric and hydrogen fueled turboprops

Dr Michael Sielemann
Aerospace industry director
Modelon
Germany
The most promising short term opportunity to improve the sustainability of commercial aviation could be on smaller, shorter-range aircraft. These are powered by turboprops and technologically less demanding than ones powered by turbofans. Wondering whether these could offer earlier sustainability improvements as they might present lower technological hurdles? This presentation introduces digital thread as a key enabler in engineering design and development of hybrid electric and hydrogen direct combustion technologies. Join us and find out if everything adds up favorably for turboprops!

17:00

Optimizing the weight and efficiency in distributed electric propulsion

Dr Kaushik Rajashekara
Distinguished professor of engineering
University of Houston
USA
Considering a notional architecture for a distributed prolusion system, various subsystems will be examined for reduction of weight and efficiency. This includes more electrification of the engine driving the generator, circuit breakers for protection, cable sizing, inverter devices and the power conversion topology, and the electric machines including winding configuration. A comparison of weight reduction at two different voltages and the protection schemes will also be presented. The use of wide bandgap devices and cooling methods will also be presented. Finally, the use of fuel cell as a power source will also be briefly discussed.

Day 2: Wednesday, June 1

Developments in hybrid electric propulsion technology
09:00 - 10:00

Moderator

Dr Evgeni Ganev
CEO
EMPS Consulting LLC
USA

09:00

Accelerating the path to net zero

Dr Polina Webb
Senior technologist - propulsion
Aerospace Technology Institute
UK
In early 2020, the UK government updated environmental targets to reach net zero by 2050 and moved the decarbonization of the aerospace industry to the forefront. The Aerospace Technology Institute has responded to this with an update of the UK aerospace technology strategy to achieve these targets, to define critical technology development areas and inform investment decisions. This includes critical technologies in advanced propulsion. The presentation will inform the audience about the focus of technology development in the UK and provide an insight into the key achievements for SME, OEM, RTO and academia toward the goals.

09:20

1MW high-efficiency generator for hybrid electric propulsion

Cristian Anghel
Technology fellow
Honeywell International
USA
This presentation describes the characteristics and testing results of an efficient, high-speed, high power density 1MW generator for hybrid electric propulsion. This generator is one of the key technologies which supports the goals of hybrid electric propulsion, such as driving very high overall system efficiencies while reducing system weight by increasing the power density and system simplicity. Honeywell has an unparalleled range of aerospace generator products, including fixed- and variable-frequency, AC and DC generators, and air- and oil-cooled generators. Building on more than 100 years of innovation and product development, Honeywell has developed, manufactured and tested a 1MW generator.

09:40

Sustainable hybrid-electric and electric aircraft solutions: key considerations

Dr Pascal Thalin
Director, aerospace standards, technology and innovation
SAE International
France
The presentation will discuss electrified propulsion – powertrain architectures and constituents; hybridization of energy sources; the integral role of alternative fuels (SAF, hydrogen); and airworthiness-centric technology maturation.

10:00 - 10:30

Break

Developments in electrified propulsion technology
10:30 - 12:10

Moderator

Florian Hilpert
Head of aviation electronics
Fraunhofer Institute for Integrated Systems and Device Technology (IISB)
Germany

10:30

ASCEND: The first step toward cryogenic electric propulsion

Ludovic Ybanez
Head of ASCEND demonstrator
Airbus UpNext
France
With ASCEND (Advanced Superconducting and Cryogenic Experimental powertraiN Demonstrator), Airbus intends to demonstrate the potential and feasibility of a cryogenic and superconducting powertrain as a breakthrough in aircraft electric propulsion. Cooling at cryogenic temperature, conventional electric technologies and using high-temperature superconductivity technologies promise to significantly increase the performance of electric propulsion systems. In recent years, through several projects, Airbus has evaluated superconducting and cryogenic technologies on electric systems and will use this project to explore their feasibility and accelerate their maturity to optimize propulsion architecture for low-emission and zero-emission flight. Results are expected to show the potential for component weight and electrical losses to be at least halved, as the volume and complexity of systems installation is reduced, as well as a reduction in voltage to below 500V compared with current systems.

10:50

Advanced electrical drive technologies for aircraft electrification

Chris Gerada
Professor of electrical machines
University of Nottingham
UK
This presentation will report on recent research and development work and technology trends for advancing the performance of electrical drives for hybrid electric aircraft. Novel electrical drive structures able to work at high torque density, novel materials enabling improved reliability and advanced control architectures enabling operation at high frequency will be described. The presentation will then cover a number of case studies including the development of a MW-class propulsion motor drive, the development of a MW-class generator and the development of test and validation infrastructure for aircraft hybrid propulsion.

11:10

Strategies and architectures for certified electric propulsive components

Axel Lange
CEO
Lange Aviation
Germany
Vladislav Gribov
Head of software development
Lange Aviation
Germany
As the interest in and demand for electric flight increases, so does the need for certified propulsive drivetrain components. Making these components certifiable requires a unified approach, with certifiability having to be an integral part of the design process from start to finish. In this presentation, Axel Lange, CEO of Lange Aviation, describes how the company is using its two decades of experience in this field to assemble a modular package of certified drivetrain components aimed at both conventional CS 23 class fixed wing aircraft and urban air mobility applications.

11:30

Integrated high-performance electric propulsion systems and components

Dr Peter Glöckner
Director, product development
Schaeffler Aerospace Germany
Germany
Schaeffler will present highly power-dense and efficient propulsion systems for electric aviation. The transfer of automotive technologies into aerospace applications will be demonstrated with the example of an integrated electric motor unit developed for emission-free operation. Furthermore, the presentation will cover how advanced, highly energy-efficient rolling bearing systems will enable next-generation hybrid and fully electric propulsion systems.

11:50

Megawatt Charging System (MCS) up to 4MW

Paul Stith
Associate vice president, global transportation initiatives
Black & Veatch
USA
MCS will allow charging of eVTOL e-planes up to 4MW, while at the same time the ISO15118 Charging Communication Protocols offer encrypted communication, smart charging, V2G, encrypted payment systems, parallel charging, wireless charging, automated charging, etc. MCS is presently going through standardization procedures at EUROCAE & SAE.

12:10 - 13:30

Lunch

Advanced technology solutions – Part 1
13:30 - 15:10

Moderator

Dr Evgeni Ganev
CEO
EMPS Consulting LLC
USA

13:30

Saving weight, space, assembly time and cost by replacing built cables with flexible printed circuits

Philip Johnston
CEO
Trackwise Designs plc
UK
Regardless of the source of propulsion, aircraft need power and data cables. Flexible printed circuits (FPCs) have been used in aerospace applications since the middle of the last century but until now could generally only be manufactured up to 610mm/24in in length, which restricted their use. Trackwise has developed Improved Harness Technology, a patented process that can be used to replace traditional wiring harnesses in a variety of applications. Improved Harness Technology enables FPCs to be manufactured in almost unlimited lengths, resulting in: weight and space savings – reducing the weight of the vehicle interconnects means there is less mass to be transported, increasing battery range and directly contributing to the green agenda of the industry; roll-to-roll manufacturing, enabling cost-effective, machine-intensive manufacture; improved precision, repeatability and reliability – the IHT manufacturing process removes the likelihood of human error; reduced assembly time and cost; roll-to-roll PCBA enables distributed electronics, distributed sensors and becomes a smart interconnect.

13:50

Advanced automotive engineering and manufacturing solutions as enablers for aerospace

Christian Grim
General manager
Bosch General Aviation Technology GmbH
Austria
Zero-emission mobility as a common goal across the industries – whether on the road, in the air or in space – motivates us to develop advanced engineering and manufacturing solutions for the future. We believe that it is vital to utilize synergies across these industries to speed up and enable the technological transition. We will focus on the benefits, potential and hurdles for future aerospace solutions based on our experience in different product areas and projects, such as fuel cell peripheral components, automotive-based high-precision microelectronics, advanced adhesive manufacturing processes and advanced electronic manufacturing solutions.

14:10

Comprehensive testing of electric aircraft systems with real-time simulation

Raffaele Colasacco
Sales engineer
Opal-RT Germany GmbH
Germany
Efficient and reliable testing of the controllers and systems that power electric aircraft is a critical step in them taking flight. Controller and power hardware-in-the-loop (C/PHIL) testing of battery management systems, electric drive systems, battery chargers and autonomous flight control systems are critical to de-risking and accelerating flight tests. Simulating these systems, which have fast and complex dynamics, in real time, requires specialized technology. This presentation provides an overview of the latest technologies for C/PHIL testing of electric aircraft, including eVTOLs, with specific examples of test platforms developed for technology leaders such ZeroAvia, NASA and MagniX, among others.

14:30

From simulation to real-time testing – the integrated workflow for development and certification

Yves Gerster
Aerospace industry manager
Speedgoat
Switzerland
Discover next-generation aerospace design and testing workflows. Learn how hardware-in-the-loop testing accelerates testing and certification of more electric or vertical take-off and landing (VTOL) aircraft. We will provide examples of actual certification processes and an overview of the tools and methods used to save time during the design verification phase. In addition, you will learn more about battery testing, cell emulation and powertrain development using Simulink Real-Time and Speedgoat real-time target machines.

14:50

Energy saving power supply for testing batteries and powertrain

Michael Ferrano
Senior account manager
Gustav Klein GmbH & Co.KG
Germany
The intelligent multi-channel system from Gustav Klein enables test and simulation of up to 1 MW per channel with only small grid power supply. With the multi-channel test and simulation system for DC applications (MI-TS), GUSTAV KLEIN can put the energy of the DC power train into a circle. The same effect is possible when making long time charging and discharging test of battery packs. Energy is transferred from one battery pack to another with little losses, only the difference in power must be obtained from the grid

15:10 - 15:40

Break

Advanced technology solutions – Part 2
15:40 - 17:00

Moderator

Dr Evgeni Ganev
CEO
EMPS Consulting LLC
USA

15:40

Characterization of magnetic materials used in electric aerospace applications

Dr Lukasz Mierczak
Principal engineer
Brockhaus Measurements
Germany
Residual stress significantly influences the magnetic properties of cobalt-iron sheets used in aerospace applications. The stress remaining in the motor laminations after manufacturing processes, such as stamping, stacking and housing shrink fitting, has a detrimental effect on power loss and permeability of stator and rotor cores, resulting in reduced efficiency and impaired performance. Brockhaus Measurements has developed a wide range of measurement technologies for the comprehensive characterization of the magnetic properties of electric motor sheets. This presentation will discuss the experimental data obtained with Brockhaus measurement systems to demonstrate the impact of manufacturing on the properties of stator cores and cobalt-iron laminations.

16:00

Snakeline magnets for e-motors

Dr Richard Arlot
Sales manager
Bomatec AG
Switzerland
With new regulation and climate change issues, electrification is becoming a major topic for all transportation systems, from bicycles, cars, bikes and trucks to buses, drones, off-roaders, tractors, boats, ferries and airplanes. A point of commonality in these systems is that they need the best materials to achieve the maximum performance. No compromise here. Bomatec has developed and patented high-performance ‘snakeline’ magnets that deliver extreme performance with reduced losses, offering an easy way to improve e-motor performance at a very good cost. E-mobility needs high-performance magnets: Bomatec has developed Snakeline.

16:20

Expecting the unexpected: rethinking ice protection for UAMs

Alex Baty
VP engineering
CAV Systems Limited
UK
eVTOL/UAM aircraft present significant new challenges when designing an in-flight ice protection system (IPS). Although there is a wide variety of vehicle designs currently in development, many of them share common themes relevant to an IPS, such as multiple rotors with low rotational speeds and limited energy available for supplementary systems. This presentation will provide an overview of an exercise conducted by CAV to compare multiple ice protection systems designed for a notional eVTOL aircraft in terms of their weight, energy requirements and impact on aircraft performance.

16:40

The importance of green hydrogen infrastructure for cleaner aviation

Julian Hoelzen
Senior researcher
Leibniz University Hannover
Germany
There is no silver bullet to reduce climate impact from air travel. Next to synthetic fuels and battery- & hybrid-electric propulsion also hydrogen-powered aircraft are seen as an option to decarbonize aircraft. While Airbus, startups such as ZeroAvia, Universal Hydrogen and many more are already working on realizing H2 propulsion systems in an aircraft, the development of a green H2 fuel infrastructure could become a bottleneck for this movement. In this presentation, the economic importance of such an infrastructure for the aviation use case is highlighted, technological feasibility is discussed and first success factors in the deployment are shown.
Please note: this conference program may be subject to change