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Articles 1 - 7 of 7
Full-Text Articles in Aerospace Engineering
Concept Evaluation And Development Of A Novel Approach For Integration Of Turbogeneration, Electrification And Supercharging On Heavy Duty Engines, Satyum Joshi
Dissertations, Master's Theses and Master's Reports
While many technologies such as electrically assisted turbocharging, exhaust energy recovery and mild hybridization have already proven to significantly increase heavy-duty engine efficiency, the key challenge to their widespread adoption has been their cost effectiveness and packaging. This research specifically addresses these challenges through evaluation and development of a novel technology concept termed as the Integrated Turbogeneration, Electrification and Supercharging (ITES) system. The concept integrates a secondary compressor, a turbocompound/expander turbine and an electric motor through a planetary gearset into the engine cranktrain. The approach enables a reduced system cost and space-claim, while maximizing the efficiency benefits of independent technologies. …
Feedback Speed Control Of A Small Two-Stroke Internal Combustion Engine That Propels An Unmanned Aerial Vehicle, Paul D. Fjare
Feedback Speed Control Of A Small Two-Stroke Internal Combustion Engine That Propels An Unmanned Aerial Vehicle, Paul D. Fjare
UNLV Theses, Dissertations, Professional Papers, and Capstones
Unmanned aerial vehicles (UAV) require intelligent control of their power source. Small UAV are typically powered by electric motors or small two-stroke internal combustion (IC) engines. Small IC engines allow for longer flight times but are more difficult to control and cause significant ground noise. A hybrid operation that uses the engine at high altitudes and the electric motors at low altitudes is desired. This would allow for extended flight with acceptable ground noise levels. Since the engine can not be restarted in the air it must be able to remain at idle for an extended time without stalling. A …
Erau Spring 2013 Newsletter, Paul Eschenfelder
Erau Spring 2013 Newsletter, Paul Eschenfelder
Paul F. Eschenfelder
No abstract provided.
Fadec Advances Allow Better Engine Performance, Nihad E. Daidzic
Fadec Advances Allow Better Engine Performance, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Birdstrike Mitigation - Beyond The Airport, Paul Eschenfelder, Russ Defusco
Birdstrike Mitigation - Beyond The Airport, Paul Eschenfelder, Russ Defusco
Paul F. Eschenfelder
No abstract provided.
Raising The Dead, Nihad E. Daidzic
Raising The Dead, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Supersonic Combustion And Mixing Characteristics Of Hydrocarbon Fuels In Screamjet Engines, Ahmed A. Taha
Supersonic Combustion And Mixing Characteristics Of Hydrocarbon Fuels In Screamjet Engines, Ahmed A. Taha
Mechanical & Aerospace Engineering Theses & Dissertations
The combustion characteristics of gaseous propane in supersonic airflow using the rearward-facing step that is swept inward from both end sides is studied. The effect of sweeping the step on the flow field features of propane combustion is investigated.
The study of the supersonic combustion of ethylene is carried out using different combustor configurations, different main fuel equivalence ratios, and different pilot fuel equivalence ratios.
The swept step shows the ability to hold the propane flame in the supersonic air stream without extinction. It was found that the side sweeping of the combustor exhibits the high temperature and combustion products …