Without radical technological advancements, the global aviation industry will continue to be a major carbon emitter. To reduce aviation's emissions, innovative aircraft technology, including electrified propulsion, is under development. However, current sizing tools require detailed design information that may not available early in development process, particularly for novel technologies. This can yield suboptimal designs and inhibits innovation. A computational tool needed easily rapidly...

The purpose of this paper is to generate specific power and efficiency projections through the year 2050 for electric machines aircraft applications. A general literature review was performed identify types that are commonly used which have biggest potential future applications due their high efficiency. database with historical data built include parameters such as weight [kg], rated [kW], [kW/kg], RPM, efficiency, year, motor cooling type, application type allow trend identification...

This paper explores the design spaces of a thin-haul and regional aircraft with parallel hybrid-electric propulsion architectures for 2030 entry into service date. Notional technology reference models were developed 19- 50-passenger based on publicly available data Beechcraft 1900D ATR 42-600, respectively. A set airframe system technologies projected to reach maturity by was infused models. Parametric, physics-based created charge-depleting hybrid architecture. Different modes operation...

This paper presents a methodology for the sizing and synthesis of power generation distribution (PG&D) subsystems.The PG&D subsystem models developed in previous work done by authors were applied within parallel hybrid electric propulsion architecture using Dornier 328 as baseline aircraft.The hybridization took place only during cruise segment.Analyses performed Pacelab SysArc, system design tool, to assess impact different architectures changing characteristics at aircraft mission...

Purpose The purpose of this paper was to create a generic and flexible framework for the exploration, evaluation side-by-side comparison novel propulsion architectures. intent these evaluations account varying operation strategies support architectural design space decisions, at conceptual stages, rather than single-point solutions. Design/methodology/approach To end, main subsystems were categorized into energy, power thrust sources. Two types matrices, namely, property interdependency...

A team of researchers from multiple universities are collaborating on the demonstration a hybrid turboelectric regional jet for 2030 under NASA ULI Program. The thermal management is one major challenges development such an electric propulsion concept. Existing studies hardly modeled systems with nor integrated it to aircraft system- and mission-level analyses. Therefore, very difficult verify whether design system feasible optimal based current literature. To fill this gap, paper presents...

This paper explores the design spaces of a thin-haul and regional aircraft with parallel hybrid electric propulsion architectures an entry into service date 2030. Notional technology reference models were developed for 19- 50-passenger based on publicly available data Beechcraft 1900D ATR 42-600, respectively. Advanced by infusing set selected airframe system technologies projected to reach maturity by2030. Matlab NPSS-based parametric, physics-based created charge depleting architecture....

This paper presents a parametric modeling and integrated sizing approach for charge-depleting parallel hybrid electric aircraft. The powertrain model is within regional aircraft with an entry-into-service of 2030-2035. In addition to the physical architecture, different operational modes enabled by hybridization propulsion system are modeled parametrically. operation presented in this peak power shaving, climb boost, in-flight battery recharging, taxi. performed multidisciplinary analysis...

Traditionally, interactions between aircraft and their subsystems are estimated by empirical relationships based on historical data. However, in the case of unconventional designs or implementation recent technologies, these estimations cannot fully capture system subsystem levels. This paper lays out a methodology for evaluating level effects electric propulsion technology design metrics an unmanned aerial vehicle (UAV). The proposed approach relies parametric models to estimate mission...

The ongoing efforts to reduce aviation related greenhouse gas emissions and fuel burn have led advancements in power generation distribution (PG&D) subsystem technology.Due the absence of historical data, PG&D models must be created from first-order analysis without compromising crucial information on their characteristics.This paper demonstrates development parametric, physics-based such as battery, electric motor, management system, propeller speed reduction unit for rapid low-cost sizing,...

Under the NASA University Leadership Initiative (ULI) program, a team of universities are collaborating on advancement technologies hybrid turboelectric regional jet, with an intent to enter service in 2030 timeframe. In previous studies ULI in-service benefits under development were analyzed by integrating interest jet turbo-electric distributed propulsion system. As program has progressed, projected performances for each technology and subsystem have been updated. This paper presents...

Electrified aircraft propulsion concepts are rapidly emerging due to their huge potential in fuel saving and mitigating negative environmental impact. In order perform a linear technology progression fairly assess the impacts of powertrain electrification, it is important first establish parametric state-of-the-art baseline vehicle models with advanced technologies matured by 2030. For thin haul (19-passenger) turboprop size class regional (50-passenger) class, current reference (TRA)...

View Video Presentation: https://doi.org/10.2514/6.2022-3290.vid Abstract – This paper will be exploring different hybrid configurations and comparing their fuel burn benefits in an attempt to identify whether electric, with hydrogen cells or a combination of the two bring aviation sector closer towards decarbonization. A notional turboprop regional aircraft based on DeHaviland Dash 8 Q 400 was modeled using public domain data create baseline for present day. Then, technologies were infused...

The growth in hydrocarbon emissions and greenhouse gases, created by the aviation industry, has led to demand of multilateral efforts investigate ways reduce aviation's effect on environment. One these explores electrification propulsion systems as a means decrease fuel consumption thus emissions. In this report, hybridization regional turboprops is investigated. Here, it argued that class will enhance technology readiness levels enable single-aisle market, which represents substantial...

The drive for more efficient flying vehicles in all categories may necessitate a significant departure from the tube-and-wing or rotary-wing norms that have been mainstay of aviation many decades.This poses challenges predicting aerodynamic characteristics and weight build-up such unconventional early design phases.Additionally, assessment advanced/unconventional all-electric hybridelectric propulsion system architectures require consideration degrees-of-freedom trade-offs do not arise...

Electrified propulsion systems can provide potential environmental and performance benefits for future aircraft. The choice of the right architecture power management strategy depends on a number factors, airframe, electrification objectives metrics interest being most critical ones. Therefore, generic advantages disadvantages various electrified architectures must be quantified to assess feasibility any possible benefits. Moreover, different military applications than commercial This...