Browsing Mechanical & Industrial Engineering by Title
Now showing items 906-925 of 1335
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Numerical and laboratory investigation of fatigue prediction models of asphalt containing glass wastes
( Elsevier , 2020 , Article)In the present study, the finite element method was applied to model the fatigue behavior of glassphalt and conventional mixtures. In order to assess the efficiency level of the presented model, all mixtures were tested ... -
Numerical and wind tunnel investigation of Hot Air Recirculation across Liquefied Natural Gas Air Cooled Heat Exchangers
( Elsevier B.V. , 2018 , Article)Air Cooled Heat Exchangers (ACHE)s are used for heat rejection in Liquefied Natural Gas (LNG) plants. Their thermal performance decreases under elevated ambient temperatures and windy conditions as exhaust air recirculates ... -
Numerical evaluation of the thermal performance of a near-surface earth-to-air heat exchanger with short-grass ground cover: A parametric study
( Elsevier , 2021 , Article)High energy consumption and increasing energy cost have encouraged investment in energy efficiency. In hot areas, like the Middle East, the share of space cooling accounts for most of the total energy use in buildings. ... -
Numerical investigation of rotating stall characteristics and active stall control in centrifugal compressors
( American Society of Mechanical Engineers (ASME) , 2014 , Conference Paper)This paper focuses on providing better view for the understanding of rotating stall phenomenon in centrifugal compressors by using numerical simulations and presents a study of the role of air injection method in delaying ... -
Numerical investigation of rotating stall in centrifugal compressor with vaned and vaneless diffuser
( Science Press , 2015 , Article)This study presents a numerical simulation of the stall and surge in a centrifugal compressor and presents a descriptionof the stall development in two different cases. The first case is for a compressor with vaneless ... -
Numerical investigation of steady air injection flow to control rotating stall in centrifugal compressors
( Web Portal ASME (American Society of Mechanical Engineers) , 2014 , Conference Paper)This paper concerns the role of air injection method in stabilization and stall control in centrifugal compressors. The main aim is to find the best arrangement of air injection parameters such as injection angle and ... -
Numerical simulation and control of rotating stall in a transonic centrifugal compressor
( Web Portal ASME (American Society of Mechanical Engineers) , 2014 , Conference Paper)This study presents a numerical simulation of precursors and characteristics of rotating stall in a centrifugal compressor with vaned diffuser. The aim is to further understand the causes of stall inception, characteristics ... -
Numerical simulation of a novel expanded metal tubular structure for crashworthiness application
( Institute of Physics Publishing , 2015 , Conference Paper)Search for new geometries and materials that would serve in crashworthiness applications is a cumulative process. Recent studies investigated the performance of expanded metal tubes and the possible ways to enhance its ... -
Numerical simulation of one-stage gearbox dynamics in the presence of simultaneous tooth cracks
( International Institute of Acoustics and Vibration, IIAV , 2017 , Conference Paper)Gears are vital components in various industrial machinery. Tooth fatigue crack is amongst the most common causes of gear failure. Early detection of tooth cracks is crucial for effective con-dition-based monitoring. This ... -
Numerical simulation of stall development into surge and stall control using air injection in centrifugal compressors
( American Society of Mechanical Engineers (ASME) , 2014 , Conference Paper)This study presents a numerical simulation of the formation of rotating stall and the initiation of surge in order to study the connection between stall and surge in centrifugal compressors. Also, the current paper introduces ... -
Numerical simulation of using combined active and passive stall control techniques in centrifugal compressors
( American Society of Mechanical Engineers (ASME) , 2014 , Conference Paper)This study presents a numerical simulation of stall control by using the casing treatment method which represents the passive control technique and also by using the air injection method which represents the active control ... -
Numerical solutions of two heat transfer limits of MFM square duct flow using MatLab program
( Taylor & Francis , 2009 , Article)The heat transfer of a magneto-fluid-dynamics (MFM) laminar flow in an electricallyinsulated square duct subjected to two boundary condition limits of constant heat flux and constant wall temperature is examined numerically. ... -
Numerical study of magneto-fluid-mechanic combined free-and-forced convection heat transfer
( Elsevier , 1998 , Article)Fully-developed, laminar, steady, free-and-forced convection heat transfer in an electrically-conducting fluid flowing in an electrically-insulated, horizontal, circular pipe (with its wall subjected to a uniform heat flux) ... -
Numerical study on the damping characteristics of a shock absorber valve utilizing different velocities through CFD analysis
( National Technical University of Athens , 2021 , Conference Paper)Shock absorbers or hydraulic dampers are power dissipating devices. The fluid flow inside the damper is governed by predefined passages. The damping effect is accomplished by the resistance of oil to flow through the ... -
Off-design performance analysis of combined CSP power and direct oxy-combustion supercritical carbon dioxide cycles
( Elsevier , 2021 , Article)The solar power tower (SPT) has the potential to achieve high efficiency and large-scale power production due to its high achievable temperatures. However, thermal energy storage (TES) is required to solve the intermittency ... -
Oleic acid-grafted chitosan/graphene oxide composite coating for corrosion protection of carbon steel
( Elsevier Ltd , 2016 , Article)An anticorrosion coating film based on the formation of nanocomposite coating is reported in this study. The composite consisted of chitosan (green matrix), oleic acid, and graphene oxide (nano filler). The nanocomposite ... -
On nonlinear vibration behavior of piezo-magnetic doubly-curved nanoshells
( Techno-Press , 2020 , Article)In this paper, nonlinear vibration behaviors of multi-phase Magneto-Electro-Elastic (MEE) doubly-curved nanoshells have been studied employing Jacobi elliptic function method. The doubly-curved nanoshell has been modeled ... -
On the aero acoustic and internal flows structure in a centrifugal compressor with hub side cavity operating at off design condition
( Elsevier , 2016 , Article)This paper covers the characterization of the acoustic noise and the unsteady flow field of a high speed centrifugal compressor NASA CC3. In order to accurately predict the noise, all analyses are carried out through the ... -
On the effectiveness of emission penalties in decentralized supply chains
( Elsevier B.V. , 2019 , Article)In recent years, the emission of harmful pollutants, such as greenhouse gases, due to industrial activities have received considerable interest from both business and scientific communities. As a result, an increasing ... -
On the minimum ignition energy and its transition in the localised forced ignition of turbulent homogeneous mixtures
( Elsevier Inc. , 2019 , Article)The minimum energy requirements for ensuring (i) just successful ignition and (ii) successful self-sustained flame propagation without the assistance of an external energy source following a successful ignition event have ...