Rodger dyson niea biomimicry summit hybrid gas electric propulsion technical lead nasa glenn research center cleveland, oh oct. Conceptual design methods for sizing and performance of hybrid. For hybridelectric1 architectures, generators are required and can be used for additional power as well as range extension for electric aircraft. The efan x is the next step in airbus electrification journey for commercial aircraft, and a giant leap towards achieving zeroemission flight over the next 20 years. We use cookies to improve website performance, facilitate information sharing on social media and offer advertising tailored to your interests. A hybrid electric aircraft is an aircraft with an hybrid electric powertrain, needed for airliners as the energy density of lithiumion batteries is much lower than aviation fuel.
The most advanced are the zunum aero 10seater, the. Propeller theory is added to the presentation of turboprop engines. Evaluating aircraft with electric and hybrid propulsion. Through selective coupling to a dc electric motor that can in turn be connected to a bladed rotor or other liftproducing device, the motive sources. Environmental assessment of hybridelectric propulsion in. The aircraft powertrain classification shown in fig. Hybridelectric propulsion systems can take advantage of the synergy between two technologies by utilizing both internal. Commercial aircraft already generate both mechanical shaft power for propulsion and electrical power for nonpropulsive loads. Aircraft electrical propulsion 4 2017 was a record year with 40 new electricallypropelled aircraft development programmes being an.
Latest news magnetizing the future of aviation as nasa continues to investigate the feasibility of hybrid and allelectric aircraft for future commercialelectrified aircraft propulsion eap is the use of propulsors propellers or fans driven by electric motors to propel aircraft, air taxies, or a wide range of other flying craft. A chapter is now included on general aviation and uninhabited aerial vehicle uav propulsion systems that includes a discussion on electric and hybrid propulsion. Nasa is developing technology, aircraft concepts, test. For siemens eaircraft, hybridelectric propulsion systems are the underlying key technology. Nov 19, 2019 electrified aircraft propulsion eap is the use of propulsors propellers or fans driven by electric motors to propel aircraft ranging from air taxis to subsonic transports. Electric propulsion components with high power densities. Structural batteries for hybrid electric propulsion system.
The hybridelectric aircraft modeled in simcenter amesim is shown below. The system includes a gas turbine engine as a first motive power source, and one or more battery packs as a second motive power source. The third option is allelectrical propulsion, where the sole source is a battery and the gas turbine and asso ciated fuel system present in hybridelectric and tur bo. Robertson, 2015, hybridelectric propulsion for aircraft, aiaa journal of aircraft 521. Aircraft propulsion to provide aircraft suitable for shortdistance travel while reducing emissions, zunum aero is turning to electrification to create hybridelectric systems. This ambitious hybridelectric aircraft demonstrator is expected to embark on its first flight in 2021. Design of a hybrid electric propulsion system within a. Hybrid electric aircraft propulsion case study for.
Powertrain architecture design and power management, control and delivery document url issue date th november 2017. The driver for industry interest has principally been the need to reduce emissions of combustion engine exhaust products and noise, but increasingly. Distributed turboelectric propulsion for hybrid wing body. Turbo and hybridelectrified aircraft propulsion concepts. Hybridelectric propulsion integration in unmanned aircraft jacob sliwinski, alessandro gardi, matthew marino, roberto sabatini rmit univ ersit y, m elbo urne, vic tor ia 30 01, a ustr alia. While electric aircraft are perceived to be futuristic, the first electrically powered flying. The challenge of developing these more electric aircraft requires the deployment of engineering simulation to achieve performance goals and. The energy source is the combustion of a fuel carried onboard with oxygen in the air, but it might also be solar power or nuclear power. Hybrid electric aircraft propulsion case study for skydiving.
Concept of modular architecture for hybrid electric. For hybrid electric1 architectures, generators are required and can be used for additional power as well as range extension for electric aircraft. Evaluating aircraft with electric and hybrid propulsion 08. The leading edge asynchronous propeller technology leaptech project will test the premise that tighter propulsionairframe integration, made possible with electric. Gama publication no 16 hybrid and electric propulsion. Experimental characterization of engine, motor generator, batteries, propeller. Heavier payloads, noise, emission, and operational cost reduction. Battery technology remains a significant limiting factor for electric aircraft.
Hybrid aircraft will give rise to a regional air system that is very different from the concentrated hubspoke of the jet engines today. In order to reduce co 2 and other pollutants, the transportation industry needs to move toward hybrid and fully electric vehicles. Guidelines for analysis of hybridelectric aircraft system. Hybrid electric has two meanings in aircraft context one meaning is the use of two power sources, such as turbine engine and electric motor, to drive the fan or propeller on an aircraft hybrid electric powertrain another meaning is the combination of more than one propulsive sources such as. May 24, 2017 electric propulsion will bring airliner competitive economics to midsized aircraft over ranges from 700 miles in the early 2020s to over 1,000 miles by 2030. Overview of nasa electrified aircraft propulsion research. The efan x is a complex hybridelectric aircraft demonstrator. Lithiumion batteries are expected to remain the most attractive for aerospace use due to their relatively higher energy densities and ability to withstand a large number of cycles. Taking advantage of moving within a fluid, aircraft propulsion is achieved by airbreathing engines, i. Aircraft electrical propulsion the next chapter of. Each of these general powertrain classes can be applied in many different. Pdf hybrid electric aircraft propulsion case study for skydiving.
The hypstair hybrid electric motor has the potential to make a breakthrough in emissionfree propulsion in aviation. The leading edge asynchronous propeller technology leaptech project will test the premise that tighter propulsion airframe integration, made possible with electric. Electrified aircraft propulsion eap glenn research. Nasa electric aircraft testbed neat singleaisle transport air vehicle hybrid electric tailcone thruster powertrain configuration and test results rodger w. The future of electric hybrid aviation machine design. Through selective coupling to a dc electric motor that can in turn be connected to a bladed rotor or other liftproducing device, the motive sources provide differing ways in which an aircraft. Turboelectric propulsion concepts create more efficient aircraft by combining turbine. Of the approximately 215 aircraft in development, most are allelectric with only batteries as their power source, though larger developments targeting the regional and large commercial aircraft markets are mainly experimenting with turboelectric hybrid propulsion, with traditional hydrocarbon based fuels for greater range andor power output. Electrified aircraft propulsion eap glenn research center. Siemens, whose highly efficient motor propelled an extra 330le aerobatic electric plane in 2016, is continuing its ascent in the electrified aircraft market. The worlds population growth takes place in megacities. Electric aircraft are transitioning from the experimental stage to market entry, with electric propulsion units currently ranging from 45kw to 260kw 60hp to 350hpadequate for small personal aircraft. Us8727271b2 aircraft using turboelectric hybrid propulsion. Oct 07, 2019 an approach for utilizing power flow modeling for simulations of hybrid electric propulsion systems chapman, litt modeling and control design for a turboelectric single aisle aircraft propulsion system connolly et al.
This research considers the design and sizing process of a hybrid electric propulsion system for a singleseat demonstrator aircraft, the experimental derivation of the internal combustion engine map, and the electric motor parameters. Nasas motivation for electrified aircraft propulsion. Propulsion systems that includes a discussion on electric and hybrid propulsion. New material on dropin biofuels and design for sustainability is added to refl. In parallel with the automotive industry, hybridelectric propulsion is becoming a viable alternative propulsion technology for the aviation sector and reveals potential advantages including fuel savings, lower pollution, and reduced noise emission. Electric propulsion will bring airliner competitive economics to midsized aircraft over ranges from 700 miles in the early 2020s to over 1,000 miles by 2030. The second procedure is the conceptual design study, where a method incorporating hybridelectric propulsion is presented. Cambridge hybridelectric demonstrator project a multidisciplinary project to investigate the theory and practise of hybridelectric aircraft propulsion over a range of aircraft scale. Backed by boeing horizonx and jetblue technology ventures, the company has been working since 20 on a family of hybrid electric regional aircraft up to 50 seats. Nasa is developing technology, aircraft concepts, test aircraft, and ground test facilities to turn this idea from science fiction to reality. Pdf hybridelectric propulsion integration in unmanned. By may 2018, there were over 30 projects, and shorthaul hybrid electric airliners were envisioned from 2032.
Hybrid electric propulsion integration in unmanned aircraft jacob sliwinski, alessandro gardi, matthew marino, roberto sabatini rmit univ ersit y, m elbo urne, vic tor ia 30 01, a ustr alia. Design challenges of fully and hybrid electric aircraft. Review of allelectric and hybridelectric propulsion technology for small vessels march 2015 1 1. Hybrid wing body turboelectric 50 16 aft motordriven fans esaero eco 150 150 0. This research considers the design and sizing process of a hybridelectric propulsion system for a singleseat demonstrator aircraft, the experimental derivation of the internal combustion engine map, and the electric motor parameters. For the largerscale aircraft, nasa is studying the boeing 737size hybrid turboelectric powered airliner. Pdf this paper describes two case studies for applying innovative architectures related to electrified propulsion for aircraft. Review of allelectric and hybridelectric propulsion.
The driver for industry interest has principally been the need to reduce emissions of combustion engine exhaust products and noise, but. Need 750 whkg energy density, at least 600 whkg wh kg cell level present 15 years 30 years lithium ion 80 200 400 450 lithium sulfur 500 650 800 950 lithium air 600 750 1200 1400. Hybrid marine electric propulsion system with supercapacitors energy storage jessie wenjie chen, john olav lindtjorn, frank wendt in order to reduce the effects of system load fluctuations on the power plant, a hybrid converter based on supercapacitors is considered for fastacting energy storage for marine vessels. Hybridelectric propulsion for aircraft journal of aircraft.
Aircraft propulsion to provide aircraft suitable for shortdistance travel while reducing emissions, zunum aero is turning to electrification to create hybrid electric systems. This paper describes a case study for applying innovative architectures related to electrified propulsion for aircraft. Felder nasa glenn research center cleveland, ohio, usa abstract meeting future goals for aircraft and air traffic system performance will require new airframes with more highly integrated propulsion. An air vehicle incorporating a hybrid propulsion system. The hybrid electric aircraft modeled in simcenter amesim is shown below. Electric aircraft investigates electrolyte engineering concepts to enables li air batteries with high practical energy densities, rechargeability and safety converges advances in predictive computation, material science, and fundamental chemistry hvhep high voltage hybrid electric propulsion. This paper draws parallels between the synergy of hybrid electric propulsion for automotive and aviation. All electric systems would use electrochemical energy storage, typically batteries, for propulsive power.
Airports at megacities are scheduleconstrained already today more so in the future. Hybrid aircraft will give rise to a regional air system that is very different from the concentrated hubspoke of. This paper draws parallels between the synergy of hybridelectric propulsion for automotive and aviation. Electric and hybrid electric propulsion for aircraft has gained widespread and significant attention over the past decade. Latest news magnetizing the future of aviation as nasa continues to investigate the feasibility of hybrid and all electric aircraft for future commercialelectrified aircraft propulsion eap is the use of propulsors propellers or fans driven by electric motors to propel aircraft, air taxies, or a wide range of other flying craft. A combustionenginedriven generator and a battery deliver power to the propulsion unit. Aircraft electrical propulsion onwards and upwards. Of the approximately 215 aircraft in development, most are all electric with only batteries as their power source, though larger developments targeting the regional and large commercial aircraft markets are mainly experimenting with turbo electric hybrid propulsion, with traditional hydrocarbon based fuels for greater range andor power output.
An approach for utilizing power flow modeling for simulations of hybrid electric propulsion systems chapman, litt modeling and control design for a turboelectric single aisle aircraft propulsion system connolly et al. Distributed turboelectric propulsion for hybrid wing body aircraft hyun dae kim, gerald v. The arrival of a unique experimental demonstrator at nasa armstrong flight research center on february 26 may herald a future in which many aircraft are powered by electric motors. This new edition has been extensively updated to include a number of new and important topics. The overall aircraft design space could also be radically opened up but there are challenges too raw aviation consulting ltd has developed a whole aircraft capability to model electric and hybridelectric aircraft deployed on customer studies to evaluate system level attributes and sensitivities to design assumptions richard wilson. Armed with a digital twin model of the electric propulsion unit epu and flight test data, the company set out to design a powertrain with even better performance, reliability and costeffectiveness. Gaston tissandier, chemist and early aviation pioneer. Zunum aero mayan for hummingbird is an aircraft manufacturer startup based in kirkland, washington. Electric propulsion components with high power densities for. The aepp working group identified the need for standardization of parameters and metrics for electric and hybrid electric aircraft system studies.
In the paper 7, the authors examine the stateoftheart of hybrid electric propulsion system modeling, and suggest new methodologies for sizing such advanced concepts. Pdf hybridelectric propulsion integration in unmanned aircraft. Cambridge hybrid electric demonstrator project a multidisciplinary project to investigate the theory and practise of hybrid electric aircraft propulsion over a range of aircraft scale. A new section in cycle analysis treats ultrahigh bypass uhb and geared turbofan engines. Concept of modular architecture for hybrid electric propulsion of aircraft work package wp1. Hybrid electric has two meanings in aircraft context one meaning is the use of two power sources, such as turbine engine and electric motor, to drive the fan or propeller on an aircrafthybrid electric powertrain another meaning is the combination of more than one propulsive sources such as. Guidelines for analysis of hybridelectric aircraft system studies. Hybrid electric aircraft propulsion case study for skydiving mission article pdf available august 2017 with 1,538 reads how we measure reads. Turboelectric aircraft would use onboard electric generation by the fuelpowered turbine for propulsive power. Hybrid electric powertrains can be implemented in several ways. The future of aircraft propulsion is electric nasa. The world is becoming electric in aviation as well we develop serial hybrid electric propulsion systems for aircraft the technology is scalable and will soon be making its way into small aircraft and, in the future, into commercial aircraft with 60 to 100 passengers, making aviation greener. Project full title modular approach to hybrid electric propulsion architecture project url. Electric and hybrid electric propulsion for aircraft has gained.