Analysis of a new rocket-based combined-cycle engine concept at low speed



Publisher: National Aeronautics and Space Administration, Glenn Research Center, Publisher: National Technical Information Service, distributor in [Cleveland, Ohio], [Springfield, Va

Written in English
Published: Downloads: 995
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Subjects:

  • Ramjet engines.,
  • Rocket engines.,
  • Single stage to orbit vehicles.,
  • Propulsion system performance.,
  • Propulsion system configurations.,
  • Spacecraft configurations.

Edition Notes

Other titlesAnalysis of a new rocket based combined cycle engine concept at low speed
StatementS. Yungster, C.J. Trefny.
SeriesNASA/TM -- 1999-209393, NASA technical memorandum -- 209393..
ContributionsTrefny, C. J., NASA Glenn Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL17137045M

Concepts being investigated include rocket-based combined cycle (RBCC), pulse detonation wave, and turbine-based combined cycle (TBCC) engines. nasa glenn research center aero propulsion evolution include rocket based combine turbine cycle engine challenge reduce cost explore program breath air gtx flowpath ramjet scramjet detonation concept. Logic Bomb writes: "Mach 5 -- 5 times the speed of sound, or mph -- is a speed that so far has eluded jet-powered aircraft (the existing record for a production craft is about mach ).NASA, however, has high hopes for its latest attempt, the XA. Using a booster rocket, the prototype will be accelerated to mach 5, at which point its engine will be scooping enough oxygen to power the 2/5(). of a rocket-based combined cycle concept into one framework and used optimization to find the minimum dry weight. The technical disciplines were represented by differ-ent analysis tools but neither reliability nor cost was included. A surrogate for cost, the dry mass, was used as the objective function and the optimization techniques. Turbine Based Combined Cycle: A combined system, which relies on a turbojet or low bypass ratio turbofan at speeds up to about Mach 3, after which a ramjet takes over to provide thrust. One example is the Lockheed Martin SR currently under development. Fig. 15 shows the concept of the combined cycle system of the SR

  Rocket Based Combined Cycle (RBCC) Engine. NASA Technical Reports Server (NTRS) Pictured is an artist's concept of the Rocket Based Combined Cycle (RBCC) launch. The R. For H 2 −air supersonic combustion, the low-temperature range of the combustor entrance conditions, which is most likely encountered as the flight speed decreases and in scramjets with short or no isolators, must involve flame stabilization methods other than lifted autoignition, as discussed in Section Cited by: On J at am the United States Space Shuttle Atlantis touched down ending the final mission of 30 years of Shuttle operations. Praised as the most complex flying machine yet made by man and as the most famous example of American technological prowess, the Shuttle has also been criticized by many as an expensive Cadillac that failed to perform as advertised and shackled the U.S. Apr 9, - Explore lotfimohamad's board "Engine" on Pinterest. See more ideas about Jet engine, Aircraft engine and Engineering pins.

J The EZ-Rocket zips through the cloudy Mojave sky. A Performance Analysis of a Rocket Based Combined Cycle (RBCC) Propulsion System for Single-Stage-To-Orbit Vehicle Applications, Nehemiah Joel Williams. PDF. A Phenomenological Investigation of Creativity in Person Centered Expressive Therapy, Mukti Khanna. PDF. A new section in cycle analysis treats Ultra-High Bypass (UHB) and Geared Turbofan engines. New material on drop-in biofuels and design for sustainability is added to refl ect the FAA’s Vision. In addition, the design guidelines in aircraft engine components are expanded to make the book user friendly for engine designers. NLS American heavy-lift orbital launch vehicle. New (or National) Launch System (NLS) joint NASA/USAF studies began in , following the demise of the ALS. They proposed development of a family of launch vehicles using a new STME engine to replace the existing ‘high cost' boosters derived from 's missile designs.

Analysis of a new rocket-based combined-cycle engine concept at low speed Download PDF EPUB FB2

Get this from a library. Analysis of a new rocket-based combined-cycle engine concept at low speed. [S Yungster; Charles J Trefny; NASA Glenn Research Center.]. A cost and infrastructure-based analysis of lunar and Phobos propellant production to support nuclear propulsion for human exploration missions M.

Stancati, A. Friedlander. Rocket-based combined-cycle (RBCC) engines are known as the most promising type of engine with the potential to realize ‘single stage to orbit’ (SSTO).

The rocket-based combined cycle (RBCC) engine is believed to be an ideal propulsion system for the space round trip mission in the future.

The mission planning process is limited because there is. [93]Yungster S, Trefny CJ, Analysis of a new rocket-based combined-cycle engine concept at low speed. Proceedings of the 35th Joint Propulsion Conference and Exhibit, Article No.

[94]Zhan H, Sun DC, Deng YP, Study on dynamic system scheme of launch vehicle based on RBCC. Journal of Solid Rocket Technology, 31(4) (in. Pursuing the combined-cycle PDTE concept only makes sense if the comparison demonstrates comparative propulsive performance benefits.

The present study provides a method for comparison of the performance of combined-cycle PDTE concept with conventional ramjet-based combined-cycle concept, i.e., the combined-cycle turbo-ramjet by: 8. Efficient high speed propulsion requires exploiting the cooling capability of the cryogenic fuel in the propulsion cycle.

This paper presents the numerical model of a combined cycle engine while in air turbo-rocket configuration. Specific models of the various heat exchanger modules and the turbomachinery elements were developed to represent the physical behavior at off-design by: The combined cycle engine is composed of a turbine engine that operates from take-off to Mach 3 and a ramjet engine for operation from over Mach up to Mach 5.

The design point is Mach 5 with six compressive shock waves (five oblique shock waves and a terminal normal shock wave), seen in Fig. Cited by: 1. Those systems were turbine-based combined cycle engine and rocket-based airbreathing combined cycle engine with ram/scram jet engine Since the fully reusable all-rocket SSTO (e.g.

VentureStar) had failed because of the composite cryogenic tank of the NASA X, TSTO has been newly studied in. Studies of an extensively axisymmetric rocket based combined cycle (RBCC) engine powered single-stage-to-orbit (SSTO) vehicle.

RICHARD FOSTER, The common engine concept for ALS application - A cost reduction approach. BAIR and; Low-speed wind tunnel performance of high-speed counterrotation propellers at angle-of-attack.

Czysz, P.A. and Little M. () “Rocket-Based Combined Cycle Engine (RBCC) - A Propulsion System for the 21st Century”, AIAA Paperpresented at the 5th International Aerospace Planes and Hypersonics Technologies Conference, 03 December Google ScholarAuthor: Paul A.

Czysz, Claudio Bruno, Bernd Chudoba. With these objectives in minds, we had proposed the novel concept on the propulsion system, continuous. from low flight speed to the high flight speed regime based on the non-Brayton cycle. As compared to the Rocket-Based Combined Cycle (RBCC) propulsion system, ARCC’s unique features.

are on minimizing the variable geometries as possible. Developments in several parts of the world are described by those intimately involved in the main stream of SCRJ activities. It is clear that fresh opportunities exist to improve the robustness of high-speed-fight propulsion, and this book offers a timely lead to a new entrant to this technology as well as new.

Washington, DC: The National Academies Press. doi: / To accelerate the development of new engine technologies, DoD and the Air Force should increase funding for Air Force gas turbine S&T funding significantly, from approximately $ million annually to a level that reflects the buying power that prevailed when the F and F.

Czysz, P.A. (a) ‘Rocket Based Combined Cycle (RBCC) Propulsion Systems Offer Additional Options’, Proceedings of the XI ISABE, Tokyo, Published by AIAA, New.

A Design Methodology of a High Hub-to-Tip Ratio Compressor for Low Speed Research Using CFD Analysis Keripale, U. / Nimje, S. / Pradeep, A.M. / Roy, B. | print version. The focus is on the phenomena that dictate the thermo-aerodynamic processes encountered in the scramjet engine, including component analyses and flowpath considerations; fundamental theoretical topics related to internal flow with chemical reactions and non-equilibrium effects, high-temperature gas dynamics, and hypersonic effects are included.

Many options exist for low-speed accelerator engines, but lately the bulk of the activity has focused on high-speed turbine engines and rocket-based combined cycle (RBCC) engines (Hueter and Turner, ), the latter being essentially a scramjet with rocket motors in the flow path for generating static and low-speed thrust.

A Ride on the The second big challenge is building engines that function at hypersonic speed. A new generation of engines combining rocket and air-breathing technology could solve this problem.

The so-called Rocket-Based Combined-Cycle engine is a hollow tube that sucks in air and contains mechanisms that can burn fuel at different speeds.

() A New Differentiable Parameterization Based on Principal Component Analysis for the Low-Dimensional Representation of Complex Geological Models. Mathematical Geosciences() A parallel finite-element framework for large-scale gradient-based design optimization of high-performance by: The rocket-based combined cycle with conventional subsonic-combustion ramjet is also known as the ejector ramjet.

This one hides a rocket engine within the ramjet engine, in an effort to provide meaningful static thrust for takeoff. It actually can work, but the performance levels are abysmally low. It’s just not worth the losses.

Combined-cycle engine is a potential propulsion system for hypersonic aircraft. To ensure long-term, normal operation of combined-cycle engine under the harsh environment of high thermal load, it is of great significance to study the thermal protection and management of the propulsion system.

In this study, the objective and development status of thermal protection and thermal management Author: Yiwei Dong, Ertai Wang, Yancheng You, Chunping Yin, Zongpu Wu. That is why in the low-speed regime (M = ) the vehicle may utilize one of several possible propulsion cycles such as a Turbine Based Combined Cycle (TBCC) with a bank of gas turbine engines in the vehicle, or Rocket Based Combined Cycle (RBCC), with integrated rockets, internal or external to the engine, to accelerate the vehicle from Cited by: A new generation of engines combining rocket and air-breathing technology could solve this problem.

The so-called Rocket-Based Combined-Cycle engine is a hollow tube that sucks in air and contains mechanisms that can burn fuel at different speeds.

Modular Ignition System Based on Resonance Igniter (English) SCCREAM: A Conceptual Rocket-Based Combined-Cycle Engine Performance Analysis Tool. John R. Olds / John E. Bradford | SYSTEM PERFORMANCE ANALYSIS AND CONCEPT STUDIES - Upper Bounds on the Flight Speed of Hydrocarbon-Fueled Scramjet-Powered Vehicles.

The U.S. Department of Energy's Office of Scientific and Technical InformationCited by: 3. Combined -Cycle Rocket Engine Analysis Module (SCCREAM) [6], an RBCC/ramjet/scramjet conceptual design tool developed at Georgia Tech, was used to generate the high -speed air-breathing performance data used in the study.

The engine setup parameters used in SCCREAM were chosen to try to closely match the ASPEN performance. Turbojet. () A New Differentiable Parameterization Based on Principal Component Analysis for the Low-Dimensional Representation of Complex Geological Models.

Mathematical Geosciences() A parallel fuzzy GMM-algorithm for approximate VGARCH-modeling with a multi-modal discontinuous merit by: A scramjet (supersonic combustion ramjet) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic in ramjets, a scramjet relies on high vehicle speed to compress the incoming air forcefully before combustion (hence ramjet), but whereas a ramjet decelerates the air to subsonic velocities before combustion, the airflow in a scramjet is supersonic.

I expect that the revolutionary engine (probably a Rocket Based Combined Cycle Engine, RBCC, for those interested.) will be developed at NASA or some similar public or non business organization.

The worst thing for that organization to do would to license that engine technology to a single company will do more damage than good.1/5(). NASA is developing both rocket-based and turbine-based engine options for the XB, which is planned to fly in The rocket-based combined cycle (RBCC) engine is being developed by RBC3 -- a consortium of Aerojet, Boeing Rocketdyne and Pratt & Whitney -- under NASA's Integrated Systems Test of an Airbreathing Rocket (ISTAR) programme.Effect of taper ratio on low-speed static and yawing stability derivatives of 45 degree sweptback wings with aspect ratio of program.

Future directions in propulsion test are also introduced including the development of a large-scale Rocket Based Combined Cycle (RBCC) test facility. Topics: COATINGS, CORROSION PREVENTION, METALS. The engine would be based on the engine for SR Blackbird, able to take off and fly a maximum of mach That engine had multiple modes of operation, changing air flow as speed increased, but it did not have full-bypass to convert the turbojet engine into a full ram-jet.

I suggest a new engine that would.