Osama A. Marzouk

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• Faculty Member at University of Buraimi

Using observation records of wind speeds from weather stations in the Sultanate of Oman between 2000 and 2023, we compute estimators of the two Weibull distribution parameters (namely, the Weibull distribution's shape parameter and the Weibull distribution's scale parameter) in 10 weather station locations within eight Omani governorates. The 10 we...

The Adiabatic Flame Temperature (AFT) in combustion represents the maximum attainable temperature at which the chemical energy in the reactant fuel is converted into sensible heat in combustion products without heat loss. AFT depends on the fuel, oxidizer, and chemical composition of the products. Computing AFT requires solving either a nonlinear e...

This article describes a dataset of total (spectrally-integrated rather than wavelength-dependent) emissivity values pertaining to gaseous media containing carbon dioxide (CO2) and/or water vapor (H2O) with the sum of their partial pressures being near the atmospheric level. These conditions may be particularly relevant to flue gases resulting from...

This study numerically investigates the generated noise and perturbation fields from an excited high-speed jet flow (air), which is modeled by the linearized Euler equations. The mean flow is prescribed by experimental-analytical approach. Harmonic hydrodynamic excitation is applied at the nozzle exit to mimic a previous experimental setup, and to...

This study investigates the Rankine vapor power thermodynamic cycle using steam/water as the working fluid, which is common in commercial power plants for power generation as the source of the rotary shaft power needed to drive electric generators. The four-process cycle version, which comprises a water pump section, a boiler/superheater section, a...

Oxy-fuel carbon capture in power plants is a relatively new concept aiming at reducing carbon dioxide emissions from the plants. This is achieved by burning the fossil fuel using oxygen as oxidizer with no nitrogen, thereby rendering the exhaust gases very rich in carbon dioxide (after condensing water vapor by cooling), which facilitates its captu...

In order to prepare college students for a world with increasing globalization, several universities implemented a diversity requirement program for undergraduate students. This study discusses the importance and impact of diversity in higher education, and then presents several surveys and studies that have been conducted at the national level or...

In order to prepare college students for a world with increasing globalization, several universities implemented a diversity requirement program for undergraduate students. This study discusses the importance and impact of diversity in higher education, and then presents several surveys and studies that have been conducted at the national level or...

Jet engines are characterized by high-speed free jets. The fact that Federal Aviation Regulations regarding noise levels retard the progress in high speed civil transport planes raises the interest in accurate methods to predict and reduce jet noise. Here, the perturbed flow field of a supersonic jet is solved using an advantageous numerical techni...

Historical data since 1950 and prospects for 2050 are presented here to show the trends of urbanization locally in the six Gulf Cooperation Council (GCC) countries as compared to the regional (Western Asia), and global counterparts. The trends are also examined for countries grouped based on their level of development (more developed, less develope...

We conduct a parametric study on the performance of passive and active anti-roll tank systems that stabilize the motion of ships to identify the influence of continuous and discrete design variables; such as the number of tanks, their locations, and their overall mass (relative to the mass of the ship). We carried out simulations for the motion of...

We conduct a parametric study on the performance of passive and active anti-roll tank systems that stabilize the motion of ships to identify the influence of continuous and discrete design variables; such as the number of tanks, their locations, and their overall mass (relative to the mass of the ship). We carried out simulations for the motion of...

We developed a vacuum generation system composed of a reciprocating compressor (3 tons of refrigeration) with an inverted-function that is ready to be hooked flexibly to a gas-tight container to create an evacuated enclosed atmosphere, without strict limitation of the size of that container. The evacuated container (or vacuum chamber) can serve in...

Historical data since 1950 and prospects for 2050 are presented here to show the trends of urbanization locally in the six Gulf Cooperation Council (GCC) countries as compared to the regional (Western Asia), and global counterparts. The trends are also examined for countries grouped based on their level of development (more developed, less develope...

We present a thermodynamic cycle design based on energy analyses for steam power plants (power station) when working according to the Rankine cycle. This thermodynamic cycle consists of a constant-entropy water pump, a constant-pressure water boiler, a constant-entropy steam turbine, and a constant-pressure-temperature steam condenser. We propose f...

We developed a vacuum generation system composed of a reciprocating compressor (3 tons of refrigeration) with an inverted-function that is ready to be hooked flexibly to a gas-tight container to create an evacuated enclosed atmosphere, without strict limitation of the size of that container. The evacuated container (or vacuum chamber) can serve in...

One of the main sources of electricity generation is power plants that use water (steam) to rotate turbines, which drive large electric generators. The steam can be generated from renewable or non-renewable energy sources, such as geothermal energy and nuclear fuels. Having an analysis tool for modeling the performance of such steam power plants ca...

We apply several weighted sum of gray gases models (WSGGMs) to calculate the radiative absorption coefficient for gas mixtures containing H2O and CO2. Our main objectives are to analyze and compare four WSGGMs which have been recently developed for oxy-fuel combustion. The models are compared with the widely-used air-fuel WSGGM of Smith et al. In a...

We developed a vacuum generation system composed of a reciprocating compressor (3 tons of refrigeration) with an inverted-function that is ready to be hooked flexibly to a gas-tight container to create an evacuated enclosed atmosphere, without strict limitation of the size of that container. The evacuated container (or vacuum chamber) can serve in...

We performed several numerical simulations of a co-axial particle-laden swirling air flow in a vertical circular pipe. The air flow is modeled using the unsteady Favre-averaged Navier-Stokes equations. A Lagrangian model is used for the particle motion. The results of the simulations using three versions of the k-epsilon turbulence model (standard,...

Several numerical simulations of a co-axial particle-laden swirling air flow in a vertical circular pipe were performed. The air flow was modeled using the unsteady Favre-averaged Navier-Stokes equations. A Lagrangian model was used for the particle motion. The gas and particles are coupled through two-way momentum exchange. The results of the simu...

We provide a summary of the progress of all the 53 assessed components describing the global alignment with the Net Zero Emissions by 2050 Scenario (NZE) of the International Energy Agency (IEA), with an intermediate trajectory scope of 2030. The 53 components (grouped in eight categories) cover sectors (such as Transport, and Buildings), subsector...

Jet engines are characterized by high-speed free jets. The fact that Federal Aviation Regulations regarding noise levels retard the progress in high speed civil transport planes raises the interest in accurate methods to predict and reduce jet noise. Here, the perturbed flow field of a supersonic jet is solved using an advantageous numerical techni...

We predict the development and propagation of the fluctuations in a perturbed ideally-expanded air jet. A non-propagating harmonic perturbation in the density, axial velocity, and pressure is introduced at the inflow with different frequencies to produce coherent structures in the airflow, which are synchronized with the applied frequency. Then, th...

In conventional oxy-fuel power generation scenarios, oxy-fuel combustion provides no significant advantage other than to simplify CO2 capture. So in terms of power production and efficiency, the energy and costs required to produce that oxygen are a burden. However, the high temperatures possible with oxy-fuel combustion can enable direct electric...

In the current study, the concept of building a power plant using thermoelectric generator (TEG) modules is investigated, both technically and economically. The hypothesized thermoelectric generation power plant is a modular system, consisting of a large array of electrically connected thermoelectric generator units for generating clean electricity...

We collected data about 13 urban air mobility (UAM) electric vertical take-off and landing (eVTOL) aircraft from 12 UAM companies in the world. While none of these models has yet reached a large-scale commercial operation (particularly as air taxis), some of them progressed well in the certification process and may have their UAM models widely oper...

Exhaust gases emitted from breathing and non-breathing engines are examples of free jet flows, which are encountered in different industrial applications, such as gas turbine engines and rocket motors. Better performance in these applications is associated with higher jet speeds, which implies more noise emissions. This motivated a lot of research...

The main objective of this paper is to present a general mathematical model and an associated numerical algorithm applicable to an arbitrary fixed-wing fixed-mass aircraft undergoing an arbitrary maneuver, based on the 3D nonlinear coupled differential-algebraic equations of motion, including force, moment, kinematic and constraint equations. The m...

Understanding how jet flows respond to aerodynamic excitation helps constructing better understanding of the physical aspects of the problem. Also, this might lead to ideas and active techniques to control the induced noise. There are several approaches for noise computations, with different levels of accuracy and computational cost. In this study,...

We collected data about 13 urban air mobility (UAM) electric vertical takeoff and landing (eVTOL) aircraft from 12 UAM companies in the world. While none of these models has yet reached a large-scale commercial operation (particularly as air taxis), some of them progressed well in the certification process and may have their UAM models widely opera...

The Faculty of Engineering at Cairo University (one of the biggest, oldest, and most reputable colleges in Egypt) uses English as the language of the written media for instruction and evaluation (e.g., class notes, textbooks, tests, and homework assignments) for all years of study except the first year. Based on the higher education admission syste...

We collected data about 13 urban air mobility (UAM) electric vertical take-off and landing (eVTOL) aircraft from 12 UAM companies in the world. While none of these models has yet reached a large-scale commercial operation (particularly as air taxis), some of them progressed well in the certification process and may have their UAM models widely oper...

Genetic algorithms (GAs) are a search method used in finding true or approximate solutions to optimization and search problems. They have been applied in different fields like computer science, engineering, and economics. Here, we apply GA to the problem of designing a symmetric airfoil with high lift coefficient. Each population member, or chromos...

This study presents a comprehensive mathematical framework for modeling the flight dynamics of a six-degree-of-freedom fixed-wing aircraft as a rigid body with three control surfaces: rudder, elevators, and ailerons. The framework consists of 35 differential-algebraic equations (DAEs) and requires 30 constants to be specified. It supports both dire...

We conduct a parametric study on the performance of passive and active anti-roll tank systems that stabilize the motion of ships to identify the influence of continuous and discrete design variables; such as the number of tanks, their locations, and their overall mass (relative to the mass of the ship). We carried out simulations for the motion of...

We consider eight kinetic models for syngas (CO-H2) oxidation, which have been proposed or used for different applications, such as laminar counter-flow flames and hypersonic engines. The models range in size from 2 global steps to 38 elementary steps. We assess the models performance in predicting a simple turbulent jet flame (Sandia/ETH-Zurich fl...

We consider eight kinetic models for syngas (CO-H2) oxidation, which have been proposed or used for different applications, such as laminar counter-flow flames and hypersonic engines. The models range in size from 2 global steps to 38 elementary steps. We assess the models performance in predicting a simple turbulent jet flame (Sandia/ETH-Zurich fl...

We consider eight kinetic models for syngas (CO-H2) oxidation, which have been proposed or used for different applications, such as laminar counter-flow flames and hypersonic engines. The models range in size from 2 global steps to 38 elementary steps. We assess the models performance in predicting a simple turbulent jet flame (Sandia/ETH-Zurich fl...

Several numerical simulations of a co-axial particle-laden swirling air flow in a vertical circular pipe were performed. The air flow was modeled using the unsteady Favre-averaged Navier-Stokes equations. A Lagrangian model was used for the particle motion. The gas and particles are coupled through two-way momentum exchange. The results of the simu...

This study presents a comprehensive mathematical framework for modeling the flight dynamics of a six-degree-of-freedom fixed-wing aircraft as a rigid body with three control surfaces: rudder, elevators, and ailerons. The framework consists of 35 differential-algebraic equations (DAEs) and requires 30 constants to be specified. It supports both dire...

Leadership can be defined as “caring about people and working toward completing a mission”. Consequently, there is a strong relationship between leadership and civic engagement (or commitment to and engagement with the community). Part of the mission of the university or college should be to develop the students’ leadership skills and their feeling...

This study explores the suitability of hydrogen-based plasma in direct power extraction (DPE) as a non-conventional electricity generation method. We apply computational modeling and principles in physics and chemistry to estimate different thermal and electric properties of a water-vapor/nitrogen/cesium-vapor (H2O/N2/Cs) gas mixture with different...

We apply several weighted sum of gray gases models (WSGGMs) to calculate the radiative absorption coefficient for gas mixtures containing H2O and CO2. Our main objectives are to analyze and compare four WSGGMs which have been recently developed for oxy-fuel combustion. The models are compared with the widely-used air-fuel WSGGM of Smith et al. In a...

According to a recent U.S. Greenhouse Gas Emissions Inventory (1), about 42% of 2008 CO2 (a greenhouse gas) emissions in the US were from burning fossil fuels (especially coal) to generate electricity. The 2010 U.S. International Energy Outlook (2) predicts that the world energy generation using coal and natural gas will continue to increase steadi...

This work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized plasma with low magnetic Reynolds numbers. The model is generic enough to handle three-dimensionality, Hall effect, compressibility, and variability o...

The main objective of this paper is to present a general mathematical model and an associated numerical algorithm applicable to an arbitrary fixed-wing fixed-mass aircraft undergoing an arbitrary maneuver, based on the 3D nonlinear coupled differential-algebraic equations of motion, including force, moment, kinematic and constraint equations. The m...

We propose a reduced-order model for the instantaneous hydrodynamic force on a cylinder. The model consists of a system of two ordinary differential equations (ODEs), which can be integrated in time to yield very accurate histories of the resultant force and its direction. In contrast to several existing models, the proposed model considers the act...

We predict the development and propagation of the fluctuations in a perturbed ideally-expanded air jet. A non-propagating harmonic perturbation in the density, axial velocity, and pressure is introduced at the inflow with different frequencies to produce coherent structures in the airflow, which are synchronized with the applied frequency. Then, th...

The aim of this study is to quantitatively describe the anticipated change in the energy mix of the Sultanate of Oman (Oman) as the country moves forward in its national plan for green hydrogen, in order to become a global producer and exporter. This aim is achieved by curating recent data about energy projects in Oman that are either operating or...

In the current study, the concept of building a power plant using thermoelectric generator (TEG) modules is investigated, both technically and economically. The hypothesized thermoelectric generation power plant is a modular system, consisting of a large array of electrically connected thermoelectric generator units for generating clean electricity...

This study investigates the Rankine vapor power thermodynamic cycle using steam/water as the working fluid, which is common in commercial power plants for power generation as the source of the rotary shaft power needed to drive electric generators. The four-process cycle version, which comprises a water pump section, a boiler/superheater section, a...

A complete model for estimating the electric conductivity of combustion product gases, with added cesium (Cs) or potassium (K) vapor for ionization, is presented. Neutral carrier gases serve as the bulk fluid that carries the seed material, as well as the electrons generated by the partial thermal (equilibrium) ionization of the seed alkali metal....

A complete model for estimating the electric conductivity of combustion product gases, with added cesium (Cs) or potassium (K) vapor for ionization, is presented. Neutral carrier gases serve as the bulk fluid that carries the seed material, as well as the electrons generated by the partial thermal (equilibrium) ionization of the seed alkali metal....

This study provides a summary about various motor vehicle models tested at the National Vehicle and Fuel Emissions Laboratory of the US Environmental Protection Agency (EPA), or tested by vehicle manufacturers with EPA’s oversight. The dataset contained 46,147 records (as of April 27, 2023) for many vehicle models, corresponding to model years betw...

The main objective of the current study is to establish a justifiable data-driven students-faculty ratio (SFR) benchmark for higher education institutions (HEIs) in the Sultanate of Oman. This is established based on analyzing selected secondary data from three sources using purposive sampling. This study reflects quantitative research adopting des...

An environment with reduced pollution from road vehicles and decarbonized transportation is one of the dimensions of smart cities. In this regard, new sales of vehicles intended for urban use should be oriented toward cleaner (greener) vehicles with less harmful environmental impacts. In the current study, two environmental rating variables provide...

Recently, worldwide, the attention being paid to hydrogen and its derivatives as alternative carbon-free (or low-carbon) options for the electricity sector, the transport sector, and the industry sector has increased. Several projects in the field of low-emission hydrogen production (particularly electrolysis-based green hydrogen) have either been...

The current investigation provides information about solar updraft tower power plants, SUTPPs (also called solar chimney power plants, SCPPs), which form a unique method of solar-powered electricity production through a ducted wind turbine driven by induced airflow as a result of solar heating. The investigation is conducted using numerical modelin...

The Rankine cycle is a conceptual arrangement of four processes as a closed vapor power thermodynamic cycle, where a working fluid (especially water as a liquid, as a vapor, and as a liquid-vapor mixture) can be used to convert heat into mechanical energy (shaft rotation). This cycle and its variants are widely used in electric power generation thr...

This study explores the suitability of hydrogen-based plasma in direct power extraction (DPE) as a non-conventional electricity generation method. We apply computational modeling and principles in physics and chemistry to estimate different thermal and electric properties of a water-vapor/nitrogen/cesium-vapor (H <sub xmlns:mml="http://www.w3.org/1...

This study discusses the portion of fuel cell electric vehicles (FCEVs) in the worldwide stock of vehicles on roads, particularly when compared to plug-in electric vehicles (PEVs), which comprise battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs). The study considers the overall number of these e-mobility (electric mobili...

The techno-economic analysis/assessment (TEA) tool H2A-Lite (Hydrogen Analysis Lite Production) of the United States National Renewable Energy Laboratory (NREL) is applied for computing the levelized cost of hydrogen (LCOH) in the Sultanate of Oman, in the case of utilizing polymer electrolyte membranes (or proton exchange membranes, PEM) in combin...

Magnetohydrodynamics (MHD) is a subject concerned with the dynamics of electrically conducting fluids (plasma) and can be applied in electric power generation. As a unique technology for producing direct-current electricity without moving parts, it can be utilized within a high-temperature topping power cycle to be combined with a traditional botto...

The collision cross sections (CCS), momentum transfer cross sections (MTCS), or scattering cross sections (SCS) of an electron–neutral pair are important components for computing the electric conductivity of a plasma gas. Larger collision cross sections for electrons moving freely within neutral particles (molecules or atoms) cause more scattering...

A single-family house was designed as a new middle-income green residential building in the Sultanate of Oman, according to criteria defined by the green building certification system EDGE (Excellence in Design for Greater Efficiencies), developed by the International Finance Corporation (IFC), which is a member of the World Bank Group (WBG). The d...

One of the main sources of electricity generation is power plants that use water (steam) to rotate turbines, which drive large electric generators. The steam can be generated from renewable or non-renewable energy sources, such as geothermal energy and nuclear fuels. Having an analysis tool for modeling the performance of such steam power plants ca...

Transportation in cities may undergo substantial changes due to two emerging technologies that enable three-dimensional movement of people or cargo. These emerging technologies are urban air mobility (UAM) and flying cars. The present study gives an overview of both technologies, differences and similarities between them, challenges they face, the...

Solar radiation can be utilized for electricity generation through two main categories of solar power technologies: (1) photovoltaic (PV), and (2) concentrated solar power (CSP). In this study, three-dimensional computer models of electricity generation from 9 different solar power systems (4 PV and 5 CSP) using the simulation program Energy3D were...

One practical way to define a “smart city” is to look at the specific qualities listed in a ranking study about smart cities. Such method gives de facto guidelines for classifying a city as being smart or not. Building upon this rationale, the current work in its first objective presents features adopted in evaluating the “smartness” of cities in s...

Using the desktop tool (Energy3D) for modelling sustainable buildings and solar power generation, this work predicts the performance of a scalable photovoltaic (PV) power plant composed of south-facing parallel racks in Muscat (the capital of the Sultanate of Oman, latitude 23.6 degrees North). The pilot PV power plant has 3,535 PV panels of peak c...

An energy modeler for solar photovoltaic (PV) systems may be limited to climatic data of certain major cities, not covering the one for which the PV system is intended. Additionally, a person not skilled in solar PV modeling may still desire a quick estimate of PV system electricity generation to help decide the level of investment in PV systems. T...

With an increasing interest in launching artificial intelligence (AI) programs at higher education institutions, both at the undergraduate level and the postgraduate level, a parallel interest in accrediting these programs locally and internationally should arise. This work considers two accreditation systems. One system is local in the Sultanate o...

We performed a number of statistical analysis methods on the historical data for the air temperature at 2 m above the ground and its range, as reported by the database of NASA known as POWER, which stands for Prediction Of Worldwide Energy Resources. The point of analysis is the University of Buraimi, located in Al Buraimi Governate, in the Northwe...

The Finite Volume Method in Computational Fluid Dynamics to numerically model a fluid flow problem involves the process of formulating the numerical flux at the faces of the control volume. This process is important in deciding the resolution of the numerical solution, thus its quality. In the current work, the performance of different flux constru...

The present article can be regarded as a compilation of various aspects related to the cultivation and utilization of Jatropha curcas in degraded lands, which may not be very suitable for other crops. The benefits of this plant are not limited to producing biodiesel, but expand to biogas and biobriquettes. So, all three phases of fuel (liquid, gas,...

This work represents a short statistical survey of the ABET accreditation in the 22 Arab countries. The data about ABET accreditation are last-updated on October 1, 2017. We found that there are 11 Arab countries with ABET-accredited programs, totaling 358 programs. These programs are mostly at the bachelor level, and are housed in 62 institutions...