Results 1 to 10 of about 512 (187)

Quasi-One-Dimensional Model of Hydrocarbon-Fueled Scramjet Combustor Coupled with Regenerative Cooling

open access: yesInternational Journal of Aerospace Engineering, 2022
In order to rapidly predict the performance of hydrocarbon-fueled regeneratively cooled scramjet engine in system design, a quasi-one-dimensional model has been developed.
Yuefei Xiong   +4 more
doaj   +1 more source

Liquid ammonia spray combustion in two-stage micro gas turbine combustors at 0.25 MPa; Relevance of combustion enhancement to flame stability and NOx control

open access: yesApplications in Energy and Combustion Science, 2021
The development of liquid ammonia spray combustion technology is expected to reduce the cost and size of gas turbines otherwise fueled with gaseous ammonia. However, successful studies on this topic are scarce due to the difficulty in flame stabilization.
Ekenechukwu C. Okafor   +9 more
doaj   +1 more source

Experimental study of the effect of swirling inflow on film cooling effectiveness

open access: yesCase Studies in Thermal Engineering, 2022
Lean burn combustor can save fuel and reduce pollutant emissions. The exit of the lean burn combustor generates strong swirling flow, which has a significant influence on the heat transfer performance of the downstream turbine.
Zhuang Wu   +4 more
doaj   +1 more source

Evaluation of Cooling Requirements for Rotating Detonation Combustors

open access: yesVolume 7A: Heat Transfer — Combustors; Film Cooling, 2023
Abstract In the last decade, the Rotating Detonation Combustor (RDC) has received growing attention among the different Pressure Gain Combustion concepts due to the simplicity of the design and the potential ease of integration in gas turbines.
Sandri U.   +5 more
openaire   +2 more sources

Improved Wall Temperature Prediction for the LUMEN Rocket Combustion Chamber with Neural Networks

open access: yesAerospace, 2023
Accurate calculations of the heat transfer and the resulting maximum wall temperature are essential for the optimal design of reliable and efficient regenerative cooling systems.
Kai Dresia   +3 more
doaj   +1 more source

Studies on the performance of distributed combined cooling, heat and power system under off-design conditions based on exergy analysis

open access: yesEnergy Reports, 2022
This paper adopts the exergy analysis method of second law of thermodynamics to analyze the characteristics of off-design conditions of distributed combined cooling, heat and power system (CCHP).
Youyuan Shao   +4 more
doaj   +1 more source

Experimental Investigation of a Fuel Cooled Combustor: Cooling Efficiency and Coke Formation [PDF]

open access: yes21st AIAA International Space Planes and Hypersonics Technologies Conference, 2017
Scramjet is an air-breathing engine designed to propel advanced aircrafts in the atmosphere, suitable, according to various studies, to thrust high-speed hypersonic flights (over Mach 5). The thermal protection of vehicles flying at hypersonic velocities is a critical problem; as at supersonic speeds the incoming air is at too high temperature to be ...
Taddeo, L.   +6 more
openaire   +2 more sources

Investigation of the acoustics of full-scale perforated liners in gas turbine combustors

open access: yesFuel Communications, 2022
In conventional gas turbine combustors, the combustion chamber linings are perforated and used for cooling. To cool the liner evenly, bias flows are introduced into the combustor at rates that depend on the operating condition.
Abdullah Shahjalal, Lam Hak-Keung
doaj   +1 more source

Computational investigation of film cooling from cylindrical and row trenched cooling holes near the combustor endwall

open access: yesCase Studies in Thermal Engineering, 2014
This study was performed to investigate the effects of cylindrical and row trenched cooling holes with alignment angles of 0° and 90° at blowing ratio of 3.18 on the film cooling performance adjacent to the endwall surface of a combustor simulator.
Ehsan Kianpour, Nor Azwadi Che Sidik
doaj   +1 more source

Heat Pipe Combustor Cooling [PDF]

open access: yesVolume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, 1998
The general approach which has been taken toward cooling aircraft turbine combustor liners is to utilize a portion of incoming combustor air for film-cooling. In this paper an alternate cooling method is considered, which is referred to as Heat Pipe Combustor Cooling.
openaire   +1 more source

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