1–50 von 149 Ergebnissen
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    Collision consequence estimation model for chemical tankers

    Sormunen, Otto-Ville E / Ehlers, Sören / Kujala, Pentti | SAGE Publications | 2013
    Chemical tanker traffic constitutes a hazard for the environment; large chemical spills caused by, for example, ship–tanker collisions can ...
    Schlagwörter: Chemical tankers , chemical spill model

    Uncertainty in maritime risk analysis: Extended case study on chemical tanker collisions

    Sormunen, Otto-Ville E / Goerlandt, Floris / Häkkinen, Jani et al. | SAGE Publications | 2015
    article discusses a case study dealing with risk analysis for a chemical spill in the Gulf of Finland and analyses the related uncertainties by ...
    Schlagwörter: Chemical tankers , Gulf of Finland

    Design and performance evaluation of a novel H2/O2 electro-chemical hybrid thruster

    Wang, Xiaoshun / Zhao, Chengren / Huang, Huijun et al. | SAGE Publications | 2023
    A H2/O2 electro-chemical hybrid thruster with a novel design for efficient coupling of hydrogen–oxygen detonation ...
    Schlagwörter: electro-chemical hybrid thruster

    Influence of chemical models on heat flux for EXPERT and Orion capsules

    Morsa, Luigi / Zuppardi, Gennaro / Votta, Raffaele et al. | SAGE Publications | 2014
    flux predicted by DS2V is always higher than that predicted by H3NS. Therefore, a sensitivity analysis of the chemical models on the heat flux ...
    Schlagwörter: Park chemical model , Gupta chemical model

    Thermo-chemical and structural analysis of integrated thermal protection system for a space vehicle

    Murtuzapurwala, Najeeba / G, Malaikannan | SAGE Publications | 2023
    protection as well as structural load-bearing capability. Thermo-chemical simulations are carried out with the help of the Fully Implicit Ablation ...

    Simulations of gasoline engine combustion and emissions using a chemical-kinetics-based turbulent premixed combustion modeling approach

    Yang, Shiyou / Pomraning, Eric / Jia, Ming | SAGE Publications | 2017
    This work presents a turbulent premixed combustion modeling approach which is based on chemical kinetics. In this approach, the smallest ...
    Schlagwörter: chemical kinetics

    Method for determining gasoline surrogate component proportions and development of reduced chemical kinetics model of the determined surrogate fuel

    Kong, Jun / Qin, Yanxin / Zheng, Zhaolei | SAGE Publications | 2019
    Response surface method is used to build models for predicting an octane number and determining the component proportions of a gasoline ...
    Schlagwörter: chemical kinetics

    The modelling of direct chemical kinetic effects in turbulent flames

    Lindstedt, R P | SAGE Publications | 2000
    need to deal with issues such as flame stability, relight and pollutant emissions has served to bring chemical kinetics and the coupling of ...
    Schlagwörter: chemical kinetic effects

    Influence of chemical models on the computation of thermo-fluid-dynamic parameters in hypersonic, rarefied flows

    Zuppardi, G / Morsa, L / Romano, F | SAGE Publications | 2010
    Four different chemical models (Bird, Fan and Shen, ‘classic’, and ‘new’ quantic) have been implemented in a direct simulation Monte Carlo ...
    Schlagwörter: chemical models

    Effect of heat transfer on the reduction of the detailed chemical kinetics mechanism in a homogeneous charge compression ignition combustion engine

    Bahlouli, Keyvan / Saray, R Khoshbakhti / Atikol, Ugur | SAGE Publications | 2015
    cylinder to deteriorate. These conditions are governed by the interaction of the chemical processes with the temperature and pressure changes in ...

    Modelling the impacts of aircraft traffic on the chemical composition of the upper troposphere

    Giannakopoulos, C / Good, P / Law, K S et al. | SAGE Publications | 2003
    A three-dimensional chemistry-transport model has been used to assess the impacts of aircraft traffic in the upper troposphere. Aircraft ...
    Schlagwörter: chemical perturbations

    An Investigation on a New Reduced Chemical Kinetic Model of n-heptane for HCCI Combustion

    Yao, Mingfa / Zheng, Zhaolei | SAGE Publications | 2006
    Detailed chemical kinetic calculations coupled with computational fluid dynamics simulations of chemically reacting flows are still ...
    Schlagwörter: reduced chemical kinetic model

    Catalyst regeneration via chemical treatment and emission tests at idle speeds

    Arapatsakos, C. I. / Sparis, P. D. | SAGE Publications | 1999
    The present paper examines the possibility of chemical treatment of used catalysts for the purpose of improving catalytic efficiency. The ...
    Schlagwörter: chemical treatment

    A diesel particulate filter regeneration model with a multi-step chemical reaction scheme

    Law, M C / Clarke, A / Garner, C P | SAGE Publications | 2005
    important to understand the fundamentals of the regeneration process. Previous soot oxidation regeneration models relied on tunable chemical kinetic ...
    Schlagwörter: chemical

    Identification of chemical and vibrational relaxation regimes in rocket nozzle flow via a quasi-linear formulation

    Lentini, D | SAGE Publications | 2001
    A quasi-linear formulation is proposed for high-speed finite-rate chemically reacting mixtures of imperfect gases, i.e. thermally perfect ...

    Improved combustion submodels for modelling gasoline engines with the level set G equation and detailed chemical kinetics

    Yang, S / Reitz, R D | SAGE Publications | 2009
    chemical kinetics. These combustion submodels include a transport equation residual model, the introduction of a Damkohler criterion model for ...
    Schlagwörter: detailed chemical kinetics

    Development of an optimized chemical kinetic mechanism for homogeneous charge compression ignition combustion of a fuel blend of n-heptane and natural gas using a genetic algorithm

    Rahimi, A / Fatehifar, E / Saray, R Khoshbakhti | SAGE Publications | 2010
    high fuel conversion efficiency and low nitrogen oxide and soot emissions. One of the major problems associated with HCCI combustion engine ...
    Schlagwörter: chemical kinetic mechanism

    Heat transfer and chemical kinetics in the exhaust system of a cold-start engine fitted with a three-way catalytic converter

    Chan, S. H. / Hoang, D. L. / Zhou, P. L. | SAGE Publications | 2000
    water condensation and evaporation at the walls of the exhaust manifold/pipe and monolith cells, and the chemical reactions of CO/HC/NO in the ...
    Schlagwörter: chemical kinetics

    An overview of the effects of fuel molecular structure on the combustion and emissions characteristics of compression ignition engines

    Freier Zugriff
    Hellier, Paul / Talibi, Midhat / Eveleigh, Aaron et al. | SAGE Publications | 2018
    processes of biological, chemical and physical conversion, feedstocks such as lignocellulosic biomass and photosynthetic micro-organisms will yield ...

    Predictions of NOx and CO emissions from a low-emission concentric staged combustor for civil aeroengines

    Zhang, Qun / Hai, Han / Li, Chengyu et al. | SAGE Publications | 2020
    This study is aimed to establish a detailed chemical reactor network model based on the analysis of complex reaction flowfield structures ...
    Schlagwörter: chemical reactor network

    Research status of active cooling of endothermic hydrocarbon fueled scramjet engine

    Ning, Wang / Yu, Pan / Jin, Zhou | SAGE Publications | 2013
    are put forward. The total heat sink of endothermic hydrocarbon fuel is found to be sufficient for scramjet cooling as the additional chemical ...

    From fundamental study to practical application of kerosene in compression ignition engines: An experimental and modeling review

    Lin Tay, Kun / Yu, Wenbin / Zhao, Feiyang et al. | SAGE Publications | 2020
    development of reliable chemical reaction mechanisms for numerical simulations. Therefore, in this work, a comprehensive review is carried out ...
    Schlagwörter: chemical reaction mechanism

    A study on the mechanism reduction and evaluation of biodiesel with the change of mechanism reduction factors

    Jung, Jun Woo / Lim, Young Chan / Suh, Hyun Kyu | SAGE Publications | 2020
    This study aims to confirm the effect of changing the various factors with the directed relation graph error propagation–based methods and ...
    Schlagwörter: detailed chemical kinetic reaction mechanisms

    Theoretical investigation of the performance of alternative aviation fuels in an aero-engine combustion chamber

    Uryga-Bugajska, I / Pourkashanian, M / Borman, D et al. | SAGE Publications | 2011
    emissions emitted to the atmosphere need to be critically evaluated. The physical and chemical properties of a fuel influence the combustion ...

    Numerical simulation of angular injection of hydrogen fuel in scramjet combustor

    Chandra Murty, M S R / Chakraborty, D | SAGE Publications | 2012
    finite rate H2–air kinetics are used to find out the effect of chemical kinetics in the thermochemical behaviour of the flow field ...

    Numerical study on the nitrogen oxide emissions of biodiesel–diesel blends in a light-duty diesel engine

    Li, Juncheng / Han, Zhiyu / Shen, Cai et al. | SAGE Publications | 2014
    The nitrogen oxide emissions characteristics of biodiesel–diesel blends in a light-duty diesel engine operating at a moderate load are ...
    Schlagwörter: chemical kinetics

    Effects and mechanism of pilot diesel injection strategies on combustion and emissions of natural gas engine

    Binyang, Wu / Puze, Yang / Yinmi, Luo et al. | SAGE Publications | 2024
    chemical reaction kinetics model. The effects and mechanisms of various PDI strategies on the mixture equivalent ratio, temperature, and ...

    Aqueous solution of ammonia as marine fuel

    Schönborn, Alessandro | SAGE Publications | 2021
    The ignition of ammonia in aqueous solution was simulated in a two-stroke compression ignition engine model. Zero-dimensional chemical ...

    Optimal control of the transient emissions and the fuel efficiency of a diesel hybrid electric vehicle

    Wang, Yu / Zhang, Hu / Sun, Zongxuan | SAGE Publications | 2013
    and chemical nature of the engine combustion process, and the dynamic interactions between the engine and the alternative power source, it is ...

    A field test study of leaf contamination on railhead surfaces

    Zhu, Yi / Olofsson, Ulf / Nilsson, Rickard | SAGE Publications | 2014
    spectroscopy for chemical analysis and glow discharge optical emission spectrometry were conducted to determine the composition of the top layer of ...

    Effect of humidity, temperature and railhead contamination on the performance of friction modifiers: Pin-on-disk study

    Lewis, Stephen R / Lewis, Roger / Olofsson, Ulf et al. | SAGE Publications | 2013
    emission spectroscopy analysis was also carried out to assess the effect of the friction modifier and atmospheric conditions on the chemical ...
    Schlagwörter: coefficient of friction

    3D simulation study on the influence of lubricant oil droplets on pre-ignition in turbocharged DISI engines

    Huang, Yongcheng / Li, Yaoting / Zhang, Wenjia et al. | SAGE Publications | 2018
    A skeletal chemical kinetic model for the simulation of auto-ignition and flame propagation characteristics of primary reference fuel (PRF ...
    Schlagwörter: Skeletal chemical kinetic model

    Numerical study of the combustion mechanism of a homogeneous charge compression ignition engine fuelled with dimethyl ether and methane, with a detailed kinetics model. Part 2: the reaction kinetics of dimethyl ether and methane dual-fuel

    Yao, M / Qin, J / Zheng, Z | SAGE Publications | 2005
    A numerical study was carried out using a zero-dimensional detailed chemical kinetics model to investigate the chemical reaction phenomena ...
    Schlagwörter: chemical reaction kinetics

    Model-based calibration of reaction-based diesel combustion dynamics

    Men, Yifan / Haskara, Ibrahim / Wang, Yue-Yun et al. | SAGE Publications | 2018
    , uses a two-step chemical reaction mechanism that consists of six species: diesel fuel (C10.8H18.7), oxygen (O2 ...

    Modeling laminar burning velocity of gasoline using an energy fraction-based mixing rule approach

    Kim, Joohan / Min, Kyoungdoug | SAGE Publications | 2019
    To determine an optimum combustion chamber design and engine operating strategies, computational fluid dynamics simulations of direct ...

    The quantitative characterization of the ignition process for a lean staged injector: Influence of the air split between pilot swirlers

    Yang, Jinhu / Liu, Cunxi / Liu, Fuqiang et al. | SAGE Publications | 2020
    The ignition of a lean staged injector aimed at aeronautical application is a transient and complex phenomenon, which involves fluid ...

    A chemically informed, control-oriented model of a three-way catalytic converter

    Soumelidis, M I / Stobart, R K / Jackson, R A | SAGE Publications | 2007
    Chemical activity inside a three-way catalytic converter (TWC) is highly complex and usually is not taken into account when developing TWC ...
    Schlagwörter: chemical modelling

    Effects of polarity on the friction and wear of collector shoes deployed in a metro traction system

    Dong, Lin / Zhong, Wen / Chen, Guang Xiong et al. | SAGE Publications | 2014
    coefficient, temperature rise and wear volume loss of the friction pair are measured. The chemical constituents of worn surfaces are investigated ...

    Characteristics of auto-ignition in gasoline–biodiesel blended fuel under engine-like conditions

    Vu, Dinh Nam / Das, Shubhra Kanti / Jwa, Kyeonghun et al. | SAGE Publications | 2019
    -stage (auto-ignition) ignition delay. Second, a gasoline–biodiesel reaction mechanism was developed to predict the chemical ignition delay of ...

    An analytical and experimental study of a hybrid rocket motor

    Rezaei, Hadi / Soltani, Mohammad Reza | SAGE Publications | 2014
    The hybrid rocket motor is a kind of chemical propulsion system that has been recently given serious attention by various industries and ...

    Oxidative Stability of Biodiesel Fuel

    Bannister, C D / Chuck, C J / Bounds, M et al. | SAGE Publications | 2011
    which involves a number of mechanisms producing an array of chemical components such as aldehydes, acids, ketones, and oligomeric compounds ...

    Prediction of NOx considering NO and NO2 for a CI engine

    Lee, Youngbok / Lee, Seungha / Min, Kyoungdoug | SAGE Publications | 2022
    Nitrogen oxides (NOx) are one of the main harmful emissions from diesel engines. Regulations on emissions are ...

    Librational characteristics of a dumbbell modeled tethered satellite under small, continuous, constant thrust

    Zhao, Guowei / Sun, Liang / Tan, Shuping et al. | SAGE Publications | 2013
    Tether drag deorbit technology with chemical propulsion is an effective method of active removal of space debris, which is completely ...

    Changes at interfaces of friction components during braking

    Holinski, R / Hesse, D | SAGE Publications | 2003
    chemical effects occur that result in surface changes of friction elements. These changes determine the service life of friction components and the ...

    Experimental investigation of scavenging in two-stroke engines using continuous CO2 sampling

    Bajwa, Abdullah U / Patterson, Mark / Jacobs, Timothy J | SAGE Publications | 2022
    In internal combustion engines, the chemical composition of the trapped fuel-air-residual gas mixture controls the nature of combustion ...

    Adaptive fast nonsingular terminal sliding mode control of Lorentz-augmented spacecraft relative motion

    Huang, Xu / Yan, Ye / Zhou, Yang | SAGE Publications | 2016
    traditional chemical propulsion is proposed. Furthermore, the stability of the closed-loop control system is proved via a Lyapunov-based approach ...

    Effect of additives on ignition of methane at homogeneous charge compression ignition engine-like conditions

    Morsy, M H / Chung, S H | SAGE Publications | 2007
    (H2O2) for the control of ignition of methane fuel in HCCI engines has been investigated numerically. The chemical kinetic mechanisms ...

    Reliability analysis based on load spectrum: A structural improvement of Indian Railways three-piece freight bogie elastomeric pad

    Shukla, Sanjay / Thaplyal, Manish / Gautam, Abhishek Kumar et al. | SAGE Publications | 2024
    existing EM pads. Further, chemical and physical properties are also evaluated in M&C (Metallurgical and Chemical) and Testing Directorate of ...

    Corrosion failure analysis of a railway tanker containing concentrated sulfuric acid

    Wu, Haomin / Zou, Changjun | SAGE Publications | 2019
    morphology and chemical composition of the corrosion scale were characterized by SEM and EDS. The theoretical corrosion rate of the railway tanker ...

    Study on the effect of different combinations of engine coolant additives on the heat dissipation rate of radiators

    Sathyanarayanan, P L / Ramprabhu, R | SAGE Publications | 2005
    governed by its composition and thereby its physical and chemical properties. Thus, a study on the effects of different combinations of engine ...