About
42
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Introduction
Dr. Nour's research interests lie in sustainable energy conversion technologies emphasizing clean usage of conventional resources and decarbonization. He utilizes experimental techniques to study advanced combustion systems and alternative e-fuels. The aim is to develop new energy systems and technologies to achieve net-zero emissions and high thermal efficiency.
Google Scholar: https://scholar.google.com/citations?user=Beni4dMAAAAJ&hl=en
Additional affiliations
September 2015 - June 2016
September 2019 - present
July 2017 - present
Benha Faculty of Engineering – Benha University
Position
- Professor (Assistant)
Education
September 2015 - May 2016
September 2013 - September 2016
Field of study
- Energy Resources Engineering - (Diesel Combustion control)
September 2011 - September 2013
Field of study
- Energy Resources Engineering - (Biofuel Combustion in Gas Turbine Engine)
Publications
Publications (42)
Deep learning methods provide data-driven techniques for handling large amounts of combustion data, thus finding the hidden patterns underlying these data. This study aims to predict combustion pressure from flame images, which provide more comprehensive information about the combustion process than traditional pressure sensors. The flame images we...
The superheated spray has attracted attention due to its enhanced atomization in gasoline direct injection (GDI) engines. Even though spray characteristics of multicomponent fuels under superheated conditions have been studied before, the connection between plume-to-plume interaction and spray cyclic variation (SCV) has not been adequately addresse...
The effect of ethanol/water blends addition on diesel fuel combustion and emissions is investigated experimentally in this study using optical diagnostics. Basic study is performed using rapid compression machine (RCM) under CI conditions. The tested ethanol energy fractions varied in the range of 10–40% of the total added fuel energy, while water...
Direct injection spark ignition (DISI) engines have been widely used in passenger cars due to their lower fuel consumption, better controllability, and high efficiency. However, DISI engines are suffering from wall wetting, imperfect mixture formation, excess soot emissions, and cyclic variations. Applying a new fuel atomization technique and using...
As there were limited efforts towards the substitution of diesel fuel with higher alcohols to operate diesel engine, the current work aims to evaluate diesel engine performance at wide operating conditions fuelled by blends of higher alcohols; including heptanol and octanol. To increase the trust of the received results, blends of lower alcohols (b...
Butanol has a high potential as a renewable substitution for gasoline in spark-ignition direct-injection (SIDI) engines. Different butanol isomers showed various flame characteristics that are strongly related to their molecular structure. However, there has been limited research on the implications of the butanol isomer's molecular structure on SI...
Flash boiling spray can improve fuel atomization efficiency via fierce phase change of the fuels both inside and outside the nozzle. Typically, active flash boiling atomization is achieved by heating the fuel before injection, which would require additional energy for heating and more complex fuel temperature controls. Another approach to enable fl...
Because of its distinctive physicochemical properties, 1-heptanol has the potential to be widely used for fueling compression ignition direct injection (CIDI) engines. Its renewability also makes 1-heptanol an attractive option for this and other applications. In this study, we investigated the combustion of different 1-heptanol/diesel blends with...
There are world attentions to increase the share of renewable bioenergy in transportation sector to resolve problems of limited fuel reserve and polluted atmosphere. It is reasonable to produce biodiesel from non-edible vegetable oils to overcome any effect on food prices. Current study investigates the effect of castor methyl ester (CME) biodiesel...
This paper investigates microwave drying effect as a pretreatment method on the kinetic parameters of four torrefied biomasses. The considered biomasses are rice straw, rice husk, sugarcane, and cotton stalks. Dried samples (microwave or oven-dried) were then torrefied under isothermal conditions in a thermogravimetric analyzer (TGA) at two differe...
The recent developments in the sustainable production of n-hexanol, in addition to its distinctive physico-chemical properties, have encouraged its application in direct-injection compression-ignition (DICI) engines. However, there has been limited research on the substitution of commercial diesel fuel with n-hexanol in DICI engines. This study inv...
Flash boiling atomization has the potential to enable superior spray atomization and more homogenous fuel-air mixing. These capabilities have been demonstrated in practical combustors such as gasoline direct-injection (GDI) engines. However, optimal injection schemes for flash boiling atomization have not been thoroughly investigated
yet in the exi...
Lean burn mode of direct injection spark ignition engines (DISI) can improve the engine's thermal efficiency. However, it showed slow flame propagation and combustion instabilities which are strongly related to mixture distribution. Multiple injections can improve control over in-cylinder charge distribution and consequently on burn mode. Additiona...
Flash boiling atomization has the potential to enable superior spray atomization and more homogenous fuel-air mixing. These capabilities have been demonstrated in practical combustors such as gasoline direct-injection (GDI) engines. However, optimal injection schemes for flash boiling atomization has not been thoroughly investigated yet in the exis...
Homogeneous lean combustion is expected to be a key technology to further improve the combustion and reduce emissions of spark-ignition direct-injection engines. The application of lean combustion is facing many challenges such as slow flame propagation and combustion fluctuations. Under severe operating conditions such as low-speed lean-burn condi...
![Fig. 2. (a) GO chemical composition [63] and (b)TGA of GO nanoparticles.](profile/Mohamed-Nour-11/publication/349744739/figure/fig2/AS:1065928108290048@1631148473948/a-GO-chemical-composition-63-and-bTGA-of-GO-nanoparticles_Q320.jpg)
The Jatropha biodiesel is a promising source to substitute diesel fuel, but it has some drawbacks like high viscosity. Thus, in this research attempts to enhance the utilization of Jatropha biodiesel in a CI engine by using higher alcohols and graphene oxide nano-additives (GO). The higher alcohols are n-butanol (B), n-heptanol (H), and n-octanol (...
Agricultural residues receive significant attention worldwide as a sustainable and green energy source. The accurate assessment of agricultural residues' energy potential depends on physicochemical properties that change with location and climate. Several studies provide an imprecise estimation of agricultural residues' energy potential in Egypt ba...
Flash boiling spray has been regarded as a promising fuel injection technology. Many investigations have been focused on spray physics and mechanisms of flash boiling spray, but information on flash boiling of alcohols in GDI engines is very limited. In this paper, the spray characteristics, flame propagation, combustion analysis, and PN emissions...
Flash boiling atomization is considered a potential solution to multiple issues encountered in fuel atomization for internal combustion engine applications. It has been demonstrated that flash boiling combustion can reduce soot emission under cold-start conditions, while the analysis was still preliminary and limited to engine cold-start conditions...
In current work, ultrasonicator was used to produce Castor Oil Methyl Ester (COME) from raw castor oil to properly reduce the production period. GC-MS and FT-IR analyses were used to confirm the conversion of raw oil into esters. Blended fuel of COME and diesel fuel with blending ratio up to 40% (symbolized as B40) were used to experimentally inves...
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Spark discharge ignition can be effectively enhanced by increasing the plasma volume and its duration, but evaluation and realization of an optimal ignition performance under engine working conditions are big challenges due to the complex in-cylinder flow field and thermodynamic environment. In this investigation, ignition strategies with various s...
Pool fire and fuel-rich combustion have been considered the primary soot/particulate matter sources for gasoline direct injection (GDI) engines, which is a crucial issue for commercial and passenger vehicles. Flash boiling atomization, achieved by heating the fuel before injection, can notably improve spray atomization and reduce the occurrence of...
Lean combustion has proven to be an effective way to improve the efficiency and emissions of the direct injection spark ignition (DISI) engine. However, one of the main problems at the lean stability limit is the major decrease in flame temperature due to dilution, resulting in a low laminar flame speed, especially under low-speed engine operating...
The main concerns of utilizing jojoba biodiesel in CI engines is that it has a high viscosity and high NOx formation. Therefore, this article purposes in endeavoring to improve the combustion and emission parameters of a CI engine working with diesel/jojoba biodiesel blend and higher alcohols under various engine loads. The higher alcohols typicall...
Diesel engines play a vital role in the transportation sector. Ternary blends of alcohol, biodiesel, and diesel have the potential to improve diesel engine combustion and emissions. In the current work, three different types of alcohols; n‐butanol, n‐heptanol, and n‐octanol were added to biodiesel/diesel blends to improve diesel engine performance,...
The use of flash boiling atomization has demonstrated the potential in improving engine efficiency and reducing particulate matter (PM) emissions because of its stronger phase change process and consequential finer droplets during the atomization. However, it is unclear how flash boiling has contributed to achieving such capacities in engine applic...
The combination of distinctive physicochemical properties of biofuels and recent engine technologies offer benefits in terms of efficiency improvement and emissions reduction. The recent development in butanol bio-based production pathways encourage researchers to study their combustion characteristics. This paper experimentally evaluates the combu...
This article aims to study the influence of the addition of graphene oxide nanoparticles (GO) to diesel/higher alcohols blends on the combustion, emission, and exergy parameters of a CI engine under various engine loads. The higher alcohols mainly n-butanol, n-heptanol, and n-octanol are blended with diesel at a volume fraction of 50%. Then, the 25...
Pentanol and Octanol are strong candidates to improve the blending stability of hydrous ethanol and diesel. Most of the available studies are limited to the stability assessment and properties characterization without combustion evaluation. In this study, the impact of ternary blends of pentanol/hydrous ethanol/diesel (Pe10E10D80) and octanol/hydro...
This paper examines the effect of microwave drying on biomass characteristics and subsequent dry pyrolysis and characteristics of produced biochar from rice straw, sugarcane bagasse, rice husk and cotton stalk compared to oven drying at 105 °C. Dried samples from both methods are torrefied at 250 and 300 °C with 30-minutes residence time. Drying ti...
Egyptian Castor raw oil has been used to produce Castor Methyl Ester (CME) biodiesel utilizing Transesterification-ultrasonic process. To meet the ASTM requirements, CME was blended with the conventional diesel fuel for improving sooting tendency and fuel viscosity. Thermal analysis showed that CME has comparable end-boiling temperature and fuel-ai...
In the current article, the effects of adding aluminum oxide (Al2O3) nanoparticles into Diesterol blended fuel (70% diesel+ 20% ethanol+ 10% Jojoba biodiesel) on the performance, combustion and emission characteristics of a diesel engine were experimentally investigated. The diesel fuel and ethanol are immiscible; therefore, jojoba methyl ester was...
Water injection is a technique that has been used for decades to control the combustion and emissions in diesel engines. The effects of water injection at the intake and exhaust manifolds on the combustion and emission characteristics of a direct injection diesel engine are studied in this work. Water injection in the intake manifold increases engi...
Dual fuel diesel engine operation is an important technique used for combustion control in diesel engines. In this study, ethanol is injected into the exhaust manifold of a single cylinder diesel engine. The exhaust valve opens during the intake stroke, enabling vaporized ethanol to enter the cylinder where it is then ignited by diesel fuel injecti...
Depletion of conventional fuels, concerns about environmental pollution and the tightening of exhaust emission legislations are the main reasons for increasing research on alternative fuels produced from agricultural feedstock. Biodiesel fuels produced from vegetable oils are investigated as renewable fuels for a gas turbine engine for aviation. Th...
Depletion of conventional fuels, concerns about environmental pollution and the tightening of exhaust emission legislations are the main reasons for increasing research on alternative fuels produced from agricultural feedstock. In this study, biodiesel fuels produced from cotton and corn vegetable oils are investigated as renewable fuels for a gas...
In this study, an experimental investigation was conducted to assess the combustion and emissions of a single cylinder diesel engine using water injection in the exhaust manifold. Water is injected into the exhaust manifold and by opening the exhaust valve during the intake stroke, the injected water, and exhaust gases are reentered the engine cyli...
In this study, the performance and exhaust emissions characteristics of gas turbine engine
fuelled with blends of waste cooking oil biodiesel with Jet A-1 is investigated experimentally.
The blending ratios define the percentage of biodiesel in the mixture and the used blend ratios
were blend 10% (B10), blend 20% (B20) and blend 50% (B50) on volume...
![TABLE 2 . OLYMPUS HP TURBOJET ENGINE [18]](profile/Mohamed-Nour-11/publication/260202848/figure/tbl1/AS:667639747715082@1536189128546/OLYMPUS-HP-TURBOJET-ENGINE-18_Q320.jpg)
This study investigated experimentally the performance of turbojet engine fueled by biodiesel obtained from different feedstocks. The engine is equipped with measuring sensors for pressure, temperature, thrust, shaft speed in addition to flow meter, data acquisition system and a control unit. The results of the effect of biodiesel fuel type and its...
Questions
Question (1)
Cotton methyl ester is consisting of methyl palmitate, methyl stearate, methyl
oleate, methyl linoleate and methyl linolenate. However, when I use the biodiesel surrogate CHEMKIN files in fluent, the fuel contents is replaced with a blend of methyl decanoate, methyl-5-decenoate, methyl-9-decenoate, n-heptane and oxygen. How can I represent the chemical composition of cotton methyl ester in terms of methyl decanoate, methyl-5-decenoate, methyl-9-decenoate, n-heptane and oxygen ?
In other word, how can I set the the boundary values of the biodiesel fuel in fluent (species model) using CHEMKIN files constructed by Westbrook et al.
