PDF Publication Title:
Text from PDF Page: 002
Aerospace 2018, 5, 123 2 of 21 powered by batteries, was selected [4]. The particularity of the system lies in the existence of a gearbox system to couple/de-couple the electrical motor from the output shaft of the turbine, according to the flight phases. Therefore, the electric motor can be used to either add power to, or generate power from, the shaft. The aim of the simulations is to demonstrate that, through the use of a parallel configuration on aircraft, it is possible to obtain a reduction of pollutant emission, especially in the proximity of urban areas. This research is placed in a scientific context that is increasingly of interest in the last years. In fact, many companies and researchers in the scientific community are investigating new configurations of hybrid propulsion for aircraft [5,6]. In the paper [7], the authors examine the state-of-the-art of hybrid electric propulsion system modeling, and suggest new methodologies for sizing such advanced concepts. Many prototypes of hybrid aircrafts have been studied and produced in the last years. The first demonstration of a hybrid electric (ICE and EM) manned aircraft was developed by Robertson from the Engineering Department at the University of Cambridge, in association with Flylight Airsports Ltd. This system utilized a 2.2 kW ICE and 11.2 kW EM in a parallel drive train powered by 16 LiPo cells of 40 Ah capacity, giving an electrical energy storage capacity of 2.4 kWh. A second hybrid electric aircraft was built by the Embry Riddle Eagle Flight Research Center. The team used a parallel hybrid propulsion system, based on a four-cylinder 75 kW Rotax 912 engine, and a 30 kW electric motor powered by lithium polymer batteries. An overrunning clutch system was installed to allow the engine to use the electric motor only during the cruise phase. In 2011, a series hybrid electric prototype aircraft was successfully demonstrated by Siemens AG, Diamond Aircraft, and EADS (European Aeronautic Defence and Space Company) at the Le Bourget air show in Paris. The power-train of the DA36 E-Star consists of a 70 kW EM made by Siemens and 30 kW Wankel ICE made by Austro Engine. The EM is powered by a generator that always runs at a constant power output of 30 kW. The battery system provides the required power during take-off and climb, and the cells are recharged during the cruise phase. A more advanced version of the DA36 E-Star, named DA36 E-Star 2, was presented in June 2013, with a reduction of empty weight of the motor glider by around 100 kg, and so an increase in flight range duration is expected [8]. Pornet, in [9], assess the potential of fuel-battery hybrid narrow-body transport aircraft according to different design ranges for an entry-into-service of 2035. The authors investigate and determine the most suited aircraft market segment for their development and application. In [10], the authors investigate the influence of emission thresholds and retrofit options on airline fleet planning by using an optimization model. The authors in [11] compare the traditional aircraft, more electric aircraft, and liquid hydrogen-fueled aircraft by using a multi-criteria scoring method. In [12], Thauvin et al. assess the benefits of transient energy storage for a hybrid regional aircraft by studying the opportunity of recovering energy in descent and during landing. In [13], the authors consider the design and sizing process of a hybrid electric propulsion system which provides not only a benefit in fuel saving but, also, a reduction in take-off noise and the emission levels. The paper [14] describes the modeling and design of an innovative partially electric distributed propulsive system architecture; for the application, a properly simulation environment is created in order to analyze the best configuration for a partially electric distributed regional jet. In [15], the author analyses a hybrid electric version of a regional propeller aircraft model (ATR72) comparing to baseline conventional system. Electric propulsion creates new design possibilities as distributed propulsion and variable shaft-speed. The main purpose is to gain more insight in modeling an (hybrid) electric aircraft, and the potential improvements with respect to well-to-propeller efficiency. In the paper [16], an electric power plant technology is compared to advanced gas turbine technology, including a variety of technical aspects, such as power plant sizing and performance characteristics, as well as aircraft integration and operation. The progress in electric motor/generator technology, power electronics, and electrical storage, has attracted considerable interest within the aerospace community. Many initial studies on the applicability of such components, as part of electric hybrid propulsion systems for aircraft, have been published [17–19]. A variety of hybrid system options involving battery elements, fuel cells, and gas turbines, and a summary of power densities and efficiencies expected for a potentialPDF Image | Turboprop Hybrid Electric Propulsion System
PDF Search Title:
Turboprop Hybrid Electric Propulsion SystemOriginal File Name Searched:
aerospace-05-00123.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |