Results 11 to 20 of about 151,235 (368)

Influence of Flow Rate Distribution on Combustion Instability of Hypergolic Propellant

open access: yesAerospace, 2022
Combustion instability is the biggest threat to the reliability of liquid rocket engines, whose prediction and suppression are of great significance for engineering applications.
Yushan Gao   +4 more
doaj   +1 more source

Design and development of community incinerators using the CFD method [PDF]

open access: yesBIO Web of Conferences, 2023
The research aims to develop municipal solid waste (MSW) incinerators for higher thermal efficiency and minimal pollution from combustion. The 3D CFD model is developed for incinerators that consist of a combustion chamber and a cyclone.
Aungkurabrut Ratchaneewan   +2 more
doaj   +1 more source

Numerical Investigation of Coaxial GCH4/LOx Combustion at Supercritical Pressures [PDF]

open access: yesCombustion Science and Technology, 2020, 2021
This article aims to numerically investigate the combustion phenomenon of coaxial gaseous CH4 LOx at supercritical pressures. The choice of turbulence model, real gas model, and chemical kinetics model are the critical parameters in numerical simulations of cryogenic combustion at high pressure.
arxiv   +1 more source

Improvements in the turbo-engine by replacement of conventional combustion chamber by a pulse combustion chamber [PDF]

open access: yesArchive of Mechanical Engineering, 2013
Abstract This paper comprises description of the turbo engine and evaluation of its analytical model. The analytical model was created to establish a benchmark for further evaluation of a wave rotor combustor (at constant volume). The wave rotor combustor concept was presented and discussed.
Janusz Piechna, Damian Łapinski
openaire   +2 more sources

Numerical modeling of distributed combustion without air dilution in a novel ultra-low emission turbulent swirl burner [PDF]

open access: yes, 2021
Distributed combustion, often associated with the low-oxygen condition, offers ultra-low NOX emission. However, it was recently achieved without combustion air dilution or internal flue gas recirculation, using a distinct approach called Mixture Temperature-Controlled combustion.
arxiv   +1 more source

A fundamental study of prechamber combustion characteristics in a constant volume combustion chamber

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The prechamber combustion characteristics were studied using a constant volume combustion chamber to improve the efficiency of cogeneration natural gas engines.
Seiya UENO   +5 more
doaj   +1 more source

Numerical investigation of the heterogeneous combustion processes of solid fuels [PDF]

open access: yes, 2015
Two-phase computational modelling based on the Euler–Euler was developed to investigate the heterogeneous combustion processes of biomass, in the solid carbon phase, inside a newly designed combustion chamber (Model 1). A transient simulation was carried
Alganash, Blaid   +2 more
core   +1 more source

Multi-scale Physics of Rotating Detonation Engines: Autosolitons and Modulational Instabilities [PDF]

open access: yesPhys. Rev. E 104, 024210 (2021), 2020
We develop a theoretical framework that predicts and fully characterizes the diverse experimental observations of the nonlinear, combustion wave propagation in a rotating detonation engine (RDE), including the nucleation and formation of combustion pulses, the soliton-like interactions between these combustion fronts, and the fundamental, underlying ...
arxiv   +1 more source

Performance of limestone‐based sorbent for sorption‐enhanced gasification in dual interconnected fluidized bed reactors

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract A possibility to carry out sorption‐enhanced gasification (SEG) is represented by its integration with the calcium looping concept in dual interconnected fluidized beds (DIFB). This article is focused on the sorbent CO2 uptake performance and attrition/fragmentation tendency when operating conditions simulating those of a DIFB‐SEG process are ...
Antonio Coppola   +4 more
wiley   +1 more source

Optimizing the Shape of a Compression-Ignition Engine Combustion Chamber by Using Simulation Tests

open access: yesPolish Maritime Research, 2019
Modern solutions used in compression-ignition internal combustion engines are quite similar to each other. The use of high-pressure, direct fuel injection results in high combustion rates with controlled exhaust emissions.
Pielecha Ireneusz, Merkisz Jerzy
doaj   +1 more source

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