Mechanical & Industrial Engineering: المرسلات الحديثة
السجلات المعروضة 281 -- 300 من 1462
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The probabilistic nature of ignition of turbulent highly-strained lean premixed methane-air flames for low-emission engines
( Elsevier , 2014 , Article)The probabilistic nature of ignition of turbulent highly-strained lean premixed flames has been investigated. Two flow configurations have been considered in this study; counter-flow and bluff-body flames. Different ... -
Investigating the effect of the air inlet temperature on the combustion characteristics of a spark ignition engine fueled by biogas
( Wiley-Blackwell , 2020 , Article)This work has conducted a numerical study using AVL-Boost engine simulation utilizing biogas (CH4 and CO2)–air mixtures in a SI engine model. The effect of varying the air manifold temperature from 25 to 50°C on the ... -
Turbulence effects on the autoignition of DME in a turbulent co-flowing jet
( Elsevier , 2017 , Article)Dimethyl ether (DME) autoignition in turbulent co-flowing jets with preheated air is studied using the one-dimensional turbulence (ODT) model. We investigate the effects of molecular and turbulent transport on the autoignition ... -
Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate
( American Society of Mechanical Engineers (ASME) , 2022 , Article)Extreme weather conditions in the Gulf, Qatar, have been taken as an example in this study, tend to be hot and humid mostly throughout the year, especially in the summer. Such weather negatively affects the performance and ... -
Effect of Utilizing a Novel Intake Manifold Design on Smoke Emissions and Particulate Size Distributions of a Gas-to-Liquid Diesel Engine
( American Society of Mechanical Engineers (ASME) , 2021 , Article)Smoke emissions and particulate matter (PM) size distributions were investigated on a direct-injection (DI) single-cylinder diesel engine running on both gas-to-liquid (GTL) and diesel fuels utilizing a novel spiral-helical ... -
Development of Machine Learning Models for Studying the Premixed Turbulent Combustion of Gas-To-Liquids (GTL) Fuel Blends
( Springer Nature , 2024 , Article)Studying the spatial and temporal evolution in turbulent flames represents one of the most challenging problems in the combustion community. Based on previous 3D numerical analyses, this study aims to develop data-driven ... -
Transient 3D simulations of turbulent premixed flames of gas-to-liquid (GTL) fuel in a fan-stirred combustion vessel
( Elsevier , 2021 , Article)This work aims to conduct turbulent flame studies of GTL fuel and 50/50 diesel-GTLblend and compare them to diesel under a wide range of equivalence ratio (0.7 < Ф < 1.3) and turbulence intensities (0.5 m/s < u′ < 3.0 m/s). ... -
Turbulent Flames in Enclosed Combustion Chambers: Characteristics and Visualization - A Review
( American Society of Mechanical Engineers (ASME) , 2020 , Article)Remarkable progress has been achieved in measuring the flame propagation rate accurately under laminar conditions, which can be used to predict turbulent flame propagation rates using some correlations fitted to experimental ... -
Combustion and emissions of a gas-to-liquid diesel engine utilizing optimized spiral-helical intake manifold designs
( American Society of Mechanical Engineers (ASME) , 2021 , Article)Two simultaneous strategies were used to reduce diesel engine emissions. Optimized manifold designs were used with gas-to-liquid (GTL) fuel and its blend with diesel fuel. Six new spiral-helical manifolds were tested, which ... -
An experimental and numerical investigation of the effects of the diaphragm pressure ratio and its position on a heated shock tube performance
( Wiley-Blackwell , 2022 , Article)The main purpose of this work was to investigate the performance of heated shock tube (ST) with different pressure ratios and diaphragm positions numerically and experimentally. The numerical model was developed to simulate ... -
Modelling of multiple biodiesel-emitted nitrogen oxides using ANN approach
( Elsevier , 2023 , Article)This research paper focuses on modelling of nitrogen oxides emitted by diesel engine for multiple biodiesel blends. A lot of research work has observed that the properties of biodiesel blends affect the nitrogen oxide ... -
Dataset for transient 3D simulations of turbulent premixed flames of Gas-to-Liquid (GTL) fuel
( Elsevier , 2021 , Dataset)A fan-stirred combustion vessel is used to study the premixed turbulent combustion of diesel, Gas to Liquids (GTL) and 50/50 diesel-GTL and to generate these datasets. A numerical simulation approach is implemented for ... -
Investigating the Potential of Recycling Flare-Source Hydrocarbon Gases in an Industrial Burner
( American Society of Mechanical Engineers (ASME) , 2021 , Article)Flare gas is considered a global environmental concern. Flaring contributes to wasting limited material and energy resources, economic loss, and greenhouse gas emissions. Utilizing flared gas as a fuel feed to industrial ... -
Polyolefin-Based Smart Self-Healing Composite Coatings Modified with Calcium Carbonate and Sodium Alginate.
( MDPI , 2024 , Article)Corrosion-related damage incurs significant capital costs in many industries. In this study, an anti-corrosive pigment was synthesized by modifying calcium carbonate with sodium alginate (SA), and smart self-healing coatings ... -
On the Prediction of the Flow Behavior of Metals and Alloys at a Wide Range of Temperatures and Strain Rates Using Johnson-Cook and Modified Johnson-Cook-Based Models: A Review
( MDPI , 2023 , Article Review)This paper reviews the flow behavior and mathematical modeling of various metals and alloys at a wide range of temperatures and strain rates. Furthermore, it discusses the effects of strain rate and temperature on flow ... -
An improved generic Johnson-Cook model for the flow prediction of different categories of alloys at elevated temperatures and dynamic loading conditions
( Elsevier , 2021 , Article)This paper presents a generic model for material flow prediction based on the well-known Johnson-Cook model. The model is developed to precisely predict the flow behavior of various categories of alloys. The coupled ... -
Modeling the flow behavior of Haynes 214 superalloy during hot deformation using mathematical and artificial intelligence-based models
( Elsevier , 2022 , Article)This work proposes, enhances, and compares various mathematical and artificial intelligence-based models for the modeling and prediction of the flow behavior of Haynes 214 superalloy at hot deformation. The utilized models ... -
Optimization of reliability and maintenance of liquefaction system on FLNG terminals using Markov modelling
( Emerald Group Publishing Ltd. , 2014 , Article)Purpose: The purpose of this paper is to optimize system redundancy and maintenance intervals of a propane pre-cooled mixed refrigerant (C3MR) liquefaction process on floating liquefied natural gas (FLNG) export platforms. ... -
A novel robust automated FFT-based segmentation and features selection algorithm for acoustic emission condition based monitoring systems
( Elsevier , 2015 , Article)This paper aims at developing a robust, fast-response and automated FFT-based features selection algorithm for the development of acoustic emission practical condition based monitoring applications of mechanical systems. ... -
Rupture of an industrial gfrp composite mitered elbow pipe
( MDPI AG , 2021 , Article)This paper examines the immature rupture of glass fiber reinforced plastic composite (GFRP) mitered elbow pipes. The GFRP composite mitered elbow pipe’s lifespan was twenty-five years; however, the pipes in question ...
