Results 21 to 30 of about 121,749 (306)

Assessment of Combustion Modes for Internal Combustion Wave Rotors [PDF]

open access: yes, 1999
Combustion within the channels of a wave rotor is examined as a means of obtaining pressure gain during heat addition in a gas turbine engine. Three modes of combustion are assessed: premixed autoignition (detonation), premixed deflagration, and non ...
Nalim, M. Razi
core   +1 more source

Wave Cycle Design for Wave Rotor Gas Turbine Engines with Low NOx emissions [PDF]

open access: yes, 1995
The wave rotor is a promising means of pressure-gain for gas turbine engines. This paper examines novel wave rotor topping cycles that incorporate low-NOx combustion strategies.
Nalim, M. Razi, Resler, Edwin L.
core   +1 more source

Study on premixed combustion characteristics of co-firing ammonia/methane fuels [PDF]

open access: yes, 2017
Ammonia is believed eventually play an important role in substituting conventional fossil fuels for future energy systems. In this study, to gain a deep insight into the combustion properties of co-firing ammonia/methane fuel blends for the power and ...
Bowen, Philip J.   +2 more
core   +1 more source

Comprehensive Thermodynamic Analysis of the Humphrey Cycle for Gas Turbines with Pressure Gain Combustion

open access: yesEnergies, 2018
Conventional gas turbines are approaching their efficiency limits and performance gains are becoming increasingly difficult to achieve. Pressure Gain Combustion (PGC) has emerged as a very promising technology in this respect, due to the higher thermal ...
Panagiotis Stathopoulos
doaj   +1 more source

The Influence of Unsteadiness on the Analysis of Pressure Gain Combustion Devices [PDF]

open access: yes51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013
Pressure gain combustion has been the subject of scientific study for over a century due to its promise of improved thermodynamic efficiency. In many recent application concepts, pressure gain combustion is used as a component in an otherwise continuous, normally steady flow system, such as a gas turbine or ramjet engine.
Daniel E. Paxson, Tom Kaemming
openaire   +1 more source

Effects of Al/O on pressure properties of confined explosion from aluminized explosives

open access: yesDefence Technology, 2017
Pressure histories were tested in a 500-L chamber to identify the pressure load in confined explosion from aluminized explosives. Different aluminized explosives with Al/O, ranging from 0.25 to 1.23, were used.
Xiao-yu DUAN   +4 more
doaj   +1 more source

Numerical approach to the modelling of transient interaction of prospective combustor concepts and conventional high pressure turbines

open access: yesPropulsion and Power Research, 2019
The Institute of Gas Turbines and Aerospace Propulsion at Technische Universität Darmstadt conducts research projects in the field of “combustor turbine interaction” (CTI). This paper presents numerical studies on the interaction between novel combustion
F. Bakhtiari, H.-P. Schiffer
doaj   +1 more source

The impact of film cooling on the heat release within a rotating detonation combustor

open access: yesApplications in Energy and Combustion Science
Rotating detonation combustors establish a detonation wave that continuously circulates inside a small annulus. The presence of the detonation wave and the downstream oblique shock within the small annulus coupled with high mass flow induces a high heat ...
Shreyas Ramanagar Sridhara   +3 more
doaj   +1 more source

Effects of Key Inlet Design Parameters on the Performance of Supplementary Combustion Nozzle [PDF]

open access: yesJournal of Applied Fluid Mechanics
Solid rocket motors (SRMs) have limited propulsion performance due to their short fuel combustion duration and low specific impulse. The supplementary combustion nozzle (SCN) injects air into the nozzle expansion section to promote secondary combustion ...
W. Lei, Y. Li, Q. Liu, Z. Zhou
doaj   +1 more source

Design and optimization of fuel injection of a 50 kW micro turbogas [PDF]

open access: yes, 2018
The present article deals with the design of a micro turbogas turbine suitable for on board applications, e.g., as a power generator on hybrid transit bus, characterized by a simple constructive approach.
Achille, Manuele, Capata, Roberto
core   +1 more source

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