PDF Publication Title:
Text from PDF Page: 029
2.1 Hybrid-Electric Propulsion System Topology 7 The role of distributing the electrical power is realized by the power management and dis- tribution (PMAD) which conveys and monitors the electrical energy from the energy sources to the consumers (see Section 2.2.2). The PMAD is typically composed of controllers, con- verters, rectifiers, inverters, cables, electrical buses and circuit breakers. Optimum layout of the PMAD system results from the analysis of level of working voltage, system efficiency, mass, bill-of-material, reliability and maintenance under constraints of abnormal mode of operation. Another important aspect related to the electrical system layout is the integra- tion of the thermal control and regulation system to provide for every operating condition an appropriate thermal environment to the electrical and power electronics components. It is essential to consider thermal management in the early design phase of the integrated electric drive as it has strong implications to the design of the propulsion and power systems [18, 19]. Finally, the useful electrical power needs to be converted into shaft power in order to drive the propulsive device. In electrical system architectures, this role is adopted by an electric motor (see Section 2.2.1). It can drive by itself the propulsor device directly or through a gear-box. As illustrated in Figure 2.1 it can also be mounted to the shaft of a combustion engine to support its operations. Due to the nature of the electric energy which can be easily partitioned, the field of distributed propulsion aiming at improving structural-aero-propulsive integration, is often considered with hybrid-electric and universally-electric approaches (see Section 2.3.2). 2.1.1 Serial Hybrid System In a serial hybrid, only the electric motor is combined to the shaft of the propulsive device [20]. The different power chains are combined together to an electric power node. The main power chains considered in a serial propulsion system for transport aircraft are represented in the region entitled “Generation of electrical power” in Figure 2.1. The most common serial arrangement is known as full turboelectric [6, 21–23]. In a pure turboelectric system, the electric power is produced by a generator driven by a combustion engine commonly a gas- turbine. The main advantage claimed is the improvement of the propulsion system efficiency. As the generation of power and the consumption of power are decoupled in a turboelectric system, the gas-turbine operation is now independent of the operational constraints of the propulsor [21, 24]. Enhancement in propulsion system efficiency results from the separate optimization of the gas-turbine core efficiency and the propulsor efficiency. However the transmission efficiency is penalized due to the accounting of the efficiency of the additional electric components composing the propulsion system architecture. Because of the greater bill-of-material related to the additional electrical components in the propulsion chain, the weight of the system is expected to increase compared to a conventional propulsion system [21]. An improvement in overall aircraft efficiency can only be achieved if the increase in propulsion system efficiency and the enhancement in aero-structural-propulsive integration through the integration of turboelectric propulsion systems compensate the afore- mentioned negative effects. In a serial system, fuel-cells and batteries are considered as means for generating electrical energy. Serial arrangements combining combustion engines, batteries and fuel-cells are alsoPDF Image | Conceptual Design Methods Hybrid-Electric Transport Aircraft
PDF Search Title:
Conceptual Design Methods Hybrid-Electric Transport AircraftOriginal File Name Searched:
1399547.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 |