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Mahmoud A. Mashkour

Mahmoud A. Mashkour
University of Technology - Iraq

Doctor of Philosophy

About

39
Publications
18,282
Reads
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33
Citations
Introduction
Research interests include fuel and combustion processes, IC engines, alternative fuels, heat transfer, porous media, Nanotechnology, ceramic coatings, and mathematical modeling and simulation.

Publications

Publications (39)
Article
Full-text available
The use of Atmospheric Plasma Spraying (APS) and yttria stabilized zirconia (YSZ) nanostructured coatings has been applied to the bond layer of NiCrAlY coated engine cylinder heads, pistons, and valve substrates. Thermal barrier coatings (TBCs) have been utilized to increase the engine performance in the design of combustion chamber components for...
Article
Full-text available
In this paper, the effect of mixed convection on the flow behavior and heat transfer around a circular cylinder disclosed to a vertically upward laminar air stream is numerically examine. The buoyancy-aided flow is utilized to eliminate and control the vortex shedding of the cylinder. The influence of the Grashof number, 0 ≤ Gr ≤ 6000, the flow and...
Article
Full-text available
The heat convection phenomenon has been investigated numerically (mathematically) for a channel located horizontally and partially heated at a uniform heat flux with forced and free heat convection. The investigated horizontal channel with a fluid inlet and the enclosure was exposed to the heat source from the bottom while the channel upper side wa...
Article
Full-text available
The thermal coefficient of a solar photovoltaic (PV) panel is a value that is provided with its specification sheet and tells us precisely the drop in panel performance with rising temperature. In desert climates, the PV panel temperatures are known to reach above 70 degrees centigrade. Exploring effective methods of increasing energy transfer effi...
Article
The effect of humidification of the air on the performance of a compression ignition engine operating on diesel, biodiesel with nano additives was investigated. The experiment was carried out on a single-cylinder, four-stroke, naturally aspirated water-cooled, direct injection Ricardo (E6/US) diesel engine at a constant speed of 1800 rpm, and varyi...
Article
The present research investigated multi-zone single-cylinder four-stroke direct-injection model. The model simulates closed cycle processes and describes the combustion behavior by employing thermodynamic equations of a penetration spray theories. The model has been coded on the base of the programming tools of Matlab software. In this simulation m...
Article
Full-text available
A thermodynamic modeling for the simulation of a spark ignition engine running on gasoline fuel and other alternate hydrocarbon fuel is presented. This paper aims to develop a simple, fast and accurate engine simulation model by using MATLAB (GUI) program. The model is based on the classical two-zone approach, wherein parameters like the first law...
Article
Full-text available
The idea of using water-in-Diesel (W/D) emulsion in recent studies as fuel for diesel engines is to reduce the emissions. The introduction of water into a diesel engine using W/D emulsion has a number of potential benefits and can be used as an alternative fuel. One of important factors to use this fuel was the distribution of water droplets in emu...
Article
The aim of this research is to determine a simulation of an electric control unit (ECU) for direct injection compression ignition combustion engine, in order to improve an engine performance and reduced fuel consumption. The simulation comprises thermodynamic model for determining engine parameters according to Spray Penetration Mixing Length, and...
Article
Full-text available
Heat transfer influence largely engine performance and reliability of thermo- mechanical of engine components. As a consequence, an accurate prediction of the wall heat fluxes of the combustion chamber walls is crucial and complex, as a result for the complexity of the phenomena that occurs in the mechanism of heat transfer within combustion chambe...
Article
Full-text available
This work presents the experimental investigation carried out for preheated air with multi-line of fuel injection in a tubular combustor of micro gas turbine to produce high performance, Low emission and distributed flameless combustion, flameless combustion characterized by dispersed and homogeneous flame and temperature uniformity under the condi...
Article
Full-text available
This work presents the experimental investigation results of high performance and low emission colorless combustion in a gas turbine tubular combustor at atmospheric conditions. Low emission and colorless oxidation reaction is characterized by dispersed flame and temperature under the conditions of preheated air. System performance, emissions of CO...
Article
Full-text available
Optimizing operation for internal combustion engines requires the application of advanced essential technique. Moreover, an experimental investigation, numerical 3D CFD simulation, is needed in order to obtain and investigate a vision into the complex phenomena’s within cylinder. In this paper, fluid flow inside a single cylinder of spark ignition...
Article
Full-text available
Experimental investigation of high performance and low emission colorless combustion in a micro gas turbine tubular combustor with multi-line of fuel injection located in secondary zone carried out at the atmospheric conditions, colorless oxidation reaction is characterized by dispersed homogenies flame and high uniformity of average temperature in...
Article
Full-text available
In present investigation an air-blast atomizer was designed and developed for fuel atomization which is used in liquid fuel burner. The burning velocity was measured experimentally. The experiments have been performed for different liquid fuel types, air to liquid mass flow rates (ALR) and equivalence ratio (φ) to study the effects of these paramet...
Article
Full-text available
In present investigation a twin-fluid external mixing atomizer was designed and developed for fuel atomization which is used in liquid fuel burner. The droplet sizes (SMD) in the spray which was produced through the atomizer was measured experimentally. The experiments have been performed for different liquid fuel types, as well as for air to liqui...
Article
Full-text available
In present investigation a twin-fluid external mixing atomizer was designed and developed for fuel atomization which is used in liquid fuel burner. The droplet sizes (SMD) in the spray which was produced through the atomizer was measured experimentally. The experiments have been performed for different liquid fuel types, as well as for air to liqui...
Article
Full-text available
Biodiesel is one of the promising substitution fuels that are used in cars, gas turbine and furnace. In this study, the experiments liquid fuels used during the tests are biodiesel and its blends (biodiesel-diesel (Bx) and biodiesel-kerosene (Bkx)) in a furnace have been studied experimentally. An airblast atomizer is used to investigate the combus...
Article
Full-text available
This work presents a technique for design optimization of a gas turbine tubular combustor. This technique is based on the use of computational fluid dynamics (CFD) with CFX solver to reduce emission gases by using multi-line of fuel injection in secondary zone. This research relates the mass fraction of the multi-line of fuel injection as well as t...
Article
Full-text available
BACKGROUND: The computer simulation techniques are beneficial alternative way, provided that the simulation model is fast and accurate enough to achieve also the mathematical model that allows spark ignition engine designer to variation and test many different parameters without building real parts or even real engines leads to low cost and minus t...
Article
Full-text available
In this work the effect of stirring speed and reaction time on bio-diesel production are studied experimentally by using transesterification reaction process with 1:7 oil (cooking oil) to methanol ratio, NaOH catalyst of 1 wt% of oil weight and reaction temperature of 55 C. The experiments conducted with stirring speeds of (200, 400, 600, 800) rpm...
Patent
This patent presents a device to heat buildings by free and forced convection heat transfer through a cubic space manufactured from glass with dimensions (303030 cm) filled with saturated porous medium. Plastic balls porous media is used with homogeneous in diameter (11.7 mm). Whilst the lower wall is heated by an electrical heater, the other wal...
Book
يمثل الكتاب طفرة نوعيه في حل المسائل الهندسسية والعلمية باستخدام الحاسوب واعتماد حل المسائل التطبيقة باعتماد الاسلوب العددي. يتكون الكتاب من اثني عشر فصلا تضمن الفصل الول نبذة عن التحليلات الهندسة والعدديية قي حين تطرقت الفصول الاخرى الى حلول المعادلات التفاضلية بطرق مختلفة معززة اتطبيقات الهندسية وتضمنت عمليات الحل استخدام الفوارق المحدده والعتاصر...
Article
Full-text available
Abstract: The biodiesel used in this paper is produced by using transesterification reaction between waste oil and methanol to reduce the cost, using NaoH as catalyst, a blending of kerosene and biodiesel were carried out to investigate their properties characterization of the biodiesel blends with kerosene were (density, viscosity, flash point, po...
Article
Full-text available
In this work, the effect of ceramic coating on performance, exhaust gas temperature and gases emissions of diesel engine operated on diesel fuel and biodiesel blends was investigated. A conventional four stroke, direct injected, single cylinder, diesel engine was tested at constant speed and at different load conditions using diesel fuel and biodie...
Article
Full-text available
This paper represents an experimental investigation of free convection heat transfer for three dimensional in a box manufactured from glass with dimensions (30 cm  30 cm  30 cm) filled with saturated porous medium. Plastic balls porous media is used with homogeneous in diameter (11.7 mm). Whilst the lower wall is heated by an electrical heater, t...
Conference Paper
Full-text available
This paper represents an experimental investigation of forced convection heat transfer for three dimension laminar steady flows in a cubic space manufactured from glass with dimensions (303030 cm) filled with saturated porous medium. Plastic balls porous media is used with homogeneous in diameter (11.7 mm). Where the lower wall is heated by elect...
Conference Paper
Full-text available
This research presents an experimental study of forced convection heat transfer for three dimension laminar steady flows in box manufactured from glass with dimensions (303030 cm) filled with saturated porous medium. The used porous media is consist of plastic balls homogeneous in diameter (11.7) mm. Where the lower wall is heated by electrical h...
Article
Full-text available
An analytical solution to estimate the effective diameter of a naturally aspirated internal combustion engine intake pipe is presented in this paper. A formula to predict the effective diameter for the geometry of the intake pipe as a function of cylinder bore, stroke, engine speed, pipe length, ambient temperature and aerodynamic losses, is create...
Article
Full-text available
In this study, the effect of ceramic coating on the performance and gases emission on diesel engine was investigated. A four-stroke, direct injected, single cylinder, diesel engine was tested at constant speed and at different load conditions without coating. Then, the inlet and exhaust valves faces were coated by about 500µm with ceramic materials...
Article
Full-text available
Experiments were carried out to investigate natural convection heat transfer in an inclined uniformly heated circular cylinder . The effects of surface heat flux and angle of inclination on the temperature and local Nusselt number variations along the cylinder surface are discussed . The investigation covers heat flux range from 92 W/m² to 487 W/m²...
Conference Paper
Full-text available
In this research, a thermodynamic model to simulate the combustion process of dual fuel in four stroke spark-ignition engine has been built by using the computer in FORTRAN language 90. This program has been constructed by using the first law of thermodynamics, mass conservation, and equation of state, considering dual fuel (80% Gasoline and 20% Et...
Article
Full-text available
Experimental study of the effect of different diesel fuel sources on engine emission is the main object of this research. Three sources of diesel fuel (Daura, Iranian, Turkish) are included in this paper. Analyses of the samples of sources were conducted at Midland Refineries Company/ AL-Daura- Quality Control and Researches Department. The experi...
Article
Full-text available
In the present work, an approach to estimate of flow characteristic in inlet andexhaust manifolds of internal combustion engines is performed using a four-strokevariable compression ratio single cylinder gasoline engine.In the theoretical part a computer simulations of the flow field in the intakeand exhaust systems as well as the cylinder cavity f...
Book
يمثل الكتاب طفرة نوعيه في حل المسائل الهندسسية والعلمية باستخدام الحاسوب واعتماد حل المسائل التطبيقة باعتماد الاسلوب العددي. يتكون الكتاب من اثني عشر فصلا تضمن الفصل الول نبذة عن التحليلات الهندسة والعدديية قي حين تطرقت الفصول الاخرى الى حلول المعادلات التفاضلية بطرق مختلفة معززة اتطبيقات الهندسية وتضمنت عمليات الحل استخدام الفوارق المحدده والعتاصر...

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