Ghassan Fadhil Smaisim

• Professor
• Professional Doctorate in Engineering (PDEng) at University of Kufa

Considerable attention has been given to flows passing over bluff bodies such as cylinders. This is due to their importance in applications such as heat exchanger, cooling towers and electronic circuit cooling. It has been proved that flow performance and heat transfer could be improved remarkably if the cylinders rotate and flow stabilizers/blocke...

Suspends Cu nanoparticles size in base fluids were adjusted for a formation of nanofluid using the ultrasonic homogenizing. A KD2 PRO was calibrated to measure the thermal conductivities while the dynamic viscosity with measured using the rotating viscometer. Thermal conductivity and dynamic viscosity effects on the other parameters such as volume...

Abstract: This article dealt with an important heat transfer field, which is passive heat transfer technique represented by corrugated tube. The study conducted numerically by ANSYS Fluent 14. The motivation behind the current study was to clarify the characteristics and merits of such tube geometry in terms of heat transfer and pressure drop. The...

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In this work, a square pyramid solar still is designed, fabricated and tested during recommended days at the four seasons of Al Kufa climatic conditions (elevation is 30 m and location is 32° North and 44° East), Iraq. The proposed design of the still can be used at any remote location in Iraq where is no electricity and high solar intensity. Desig...

div class="section abstract"> In this study, an investigation was conducted on friction stir spot-welded AA7075 aluminum alloy with mild steel. Fusion welding of these two materials presents challenges because of differences in melting points and metallurgical incompatibility. To overcome these challenges, friction stir spot welding was employed fo...

Solar still owns low distillate productivity. Many researchers enhanced the performance of solar still by variable the design of its components. The combination of internal/external reflectors, absorber materials (fins, sponge, pebbles), and external condensers had a substantial impact on the absorption, evaporation, and condensation processes of t...

This paper introduces a size-dependent model for evaluating thermoelastic damping (TED) in small-scaled rectangular plates, incorporating three-dimensional (3D) heat transfer. Utilizing the modified couple stress theory (MCST) and Moore–Gibson–Thompson (MGT) heat equation, we enhance the thermomechanical analysis accuracy in micro/nano-structures....

By only producing electricity and contributing to the provision of electricity, photovoltaic cells are limited in their function. There are numerous ways to evaluate the performance of photovoltaic cells. The electrical and thermal performance of such cells must typically be examined for cells that utilize thermal energy as well. The performance of...

In this study, AA1060/Alumina composites were fabricated by combined stir casting and accumulative press bonding (APB). The APB process was repeated up to six press bonding steps at 300Ċ. As the novelty, potential dynamic polarization in 3.5Wt% NaCl solution was used to study the corrosion properties of these composites. The corrosion behavior of t...

Historically the field of heterogeneous catalysis has focused on the design and optimisation of the catalytic materials. However, as these optimisations start to reach diminishing returns, attention has turned to non-conventional means for improving reaction conditions such as the use of ultrasound, plasma, electromagnetic heating and microwave hea...

Phenolic resins have excellent dimensional, thermal, chemical and corrosion resistance. Also, the volatile substances produced during the thermal degradation of this resin have low toxicity and, in addition, they have high charring. Phenolic resins have been applied in many areas such as internal parts of war planes, structures used in marine platf...

Combustion is an exothermic chemical process between an explosive substance and an oxidizing agent that is accompanied by heat generation and chemical change of raw materials. Catalysts are used in a combustion process for various reasons, including the speed at which the material reaches equilibrium. Catalysts are chemicals that increase the rate...

In this study, aluminium alloy 1050 strips were bonded together using the electrically assisted roll bonding process (EARB) atelectric current levels from 0 A up to 300 A. The effect of electric current level and plastic strain as the two main EARB parametershave been investigated on bonding strength by using the peel test. Results showed that by i...

In this study, based on the energy balance for different components of a double-layered vacuum-tube solar collector with a U-tube, the thermal performance of the collector unit is investigated separately using an analytical and quasi-dynamic method. The model used in this study determines the temperature distribution in longitudinal and radial dire...

Sanitization is a protective and strategic approach to contain SARS-CoV2 dissemination. As there is no feasible way to deal with the new COVID-19 pandemic, sanitization has a key role to play. A modified method to reduce the spread of the virus by constructing a fogging room with a disinfectant and a base fluid mixture has been examined. The nanome...

Background and objective: The molecular dynamics (MD) simulation is a powerful tool for researching how cancer patients are treated. The efficiency of many factors may be predicted using this approach in great detail and with atomic accuracy. Methods: The MD simulation method was used to investigate the impact of porosity and the number of cance...

Liquid Crystal materials are a suitable environment for the synthesis of nanostructures of uniform size and shape due to their order and yet mobility at the molecular level. Dense liquid crystal phases allow nanoparticles to self-assemble, resulting in larger organized nanostructures. Although both types of Lyotropic liquid Crystal and Thermotropic...

Using combined cooling, heat and power systems can be an appropriate substitute for preventing emissions of pollutants and excessive consumption of fossil fuels. Utilizing renewable energy in these systems as a source of power generation can be an appropriate substitute for fossil-fuel-based systems. Therefore, in this paper, cogeneration cooling,...

Today, the use of alternative fuels that have plant origin has attracted the attention of most countries because these fuels emit less pollution. In this research, bioethanol production has been evaluated considering solar energy sources. In the present study, the possibility of developing net-zero energy concepts in a bioethanol production plant a...

Today, the problems, such as the environmental pollution caused by the consumption of fossil fuels, which have disrupted the ecological conditions and created environmental risks, as well as the limited reserves of fossil fuels, have caused countries worldwide to pay more attention to this type of energy. Biofuels are a type of fuel obtained from b...

This research studied the thermal performance of phase change material (PCM) microcapsules containing gold (Au) nanoparticles (NPs) in a nanochannel (NC) using molecular dynamics (MD) simulations. The MD simulation method is a reliable method for studying at micro and nano scales. In this simulation, the physical equilibrium was studied in the firs...

In this study, the thermal conductivity (knf) of ZnO -TiO2 (50 %–50 %)/ Ethylene Glycol hybrid nanofluid using Artificial Neural Networks (ANNs) was predicted. The nanofluid was prepared at different volume fractions (φ) of nanoparticles (φ = 0.001 to 0.035) and temperatures (T = 25 to 50 °C). In this study, an algorithm is presented to find the be...

Metal matrix composites have various structural and thermal applications in terms of their unique mechanical and thermal properties compared to their counterparts. These nanoparticle (NP)-reinforced composites have received much attention due to their relatively low production costs and excellent mechanical properties. In the present research, mode...

The use of biobased heterogeneous catalysts made from agricultural waste for producing biodiesel has gained attention for its potential to create a sustainable and low-cost process. The blending of two or more biomass residues to create more viable biobased catalysts is still in its early stages. In this study, a Biobased Composite Heterogeneous Ca...

Today, the use of solar energy is expanding and developing because this energy is easily available and there are various technologies for producing thermal and electrical energy and cooling. One of the most energy-consuming parts is heating and cooling systems in residential buildings, which includes the major part of energy consumption in building...

Today, the use of solar energy is expanding and developing because this energy is easily available and there are various technologies for producing thermal and electrical energy and cooling. One of the most energy-consuming parts is heating and cooling systems in residential buildings, which includes the major part of energy consumption in building...

The principal moot point in this investigation is heat removal from surfaces with high heat flux, which is the use of tabulators and parts with a particular geometry, it has been chosen as a solution to this moot point. The primary hypothesis in this investigation is to increase fluid heat transfer by increasing turbulence and heat transfer by incr...

The current paper presents numerical results of the 3D buoyancy-driven flow of a hybrid nanofluid in a cubical cavity in the presence of a magnetic field. The computational domain comprises two layers: a non-Newtonian fluid layer and a hybrid nanofluid layer. The temperature disparity within the domain results from heating the wavy bottom wall and...

In this research, the SAFT-VR Morse has been extended to polar system by considering the dipolar interactions between non-spherical molecules. The second order derivative thermodynamic properties of refrigerants such as speed of sound, specific heat capacity and Joule-Thomson coefficient have been predicted and compared to PPC-SAFT EoS. The model p...

In this paper, hematite (α-Fe2O3) nanoparticles were prepared at two different temperatures (500 and 600 °C) by one-step direct thermal decomposition of Fe(NO3)2·6H2O at the presence of urea (1:1 weight ratio). The products were named as Fe-1 and Fe-2 and characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and transmission...

Heat transfer (HT) has always been one of the major challenges in engineering. Many approaches have been of-fered to enhance or control HT. One of the common techniques to develop the thermal performance of devices isto use nano-sized channels. This study is aimed to examine the influence of temperature and external force (EF)on nanochannel simulat...

Global energy consumption is increasing due to population growth and with it the adverse impact of fossil fuels on the environment, making it necessary to use renewable energy sources and convert them to electrical energy using different technologies. However, the solar energy potential remains unused, while it has numerous advantages, including as...

Conjugate heat transfer is a complex problem because heat is transferred from a solid medium to a liquid medium through their interfaces. The steady-state laminar flow formed inside the microtubules is subjected to a constant temperature at the outer sidewall surface. These images cover a wide range of wall-to-fluid thermal conductivity ratios (ksf...

The melting of nano-enhanced phase change material (NEPCM) in a latent heat thermal storage system is investigated for PCM loaded within an annulus between an outer wavy cylinder and an inner Koch snowflake cylinder. The inner Koch snowflake cylinder is used in this study to increase the heating surface area and enhance the NEPCM melting process. T...

The graphene-based materials are promising for applications in supercapacitors and other energy storage devices due to the intriguing properties, i.e., highly tunable surface area, outstanding electrical conductivity, good chemical stability and excellent mechanical behavior. This review summarizes recent development on graphene-based materials for...

In recent decades, the depletion of fossil fuels and the environmental challenges created by their usage has made the development of clean and renewable energy sources essential. Recently, phase change thermal energy was the topic of substantial research. Numerous theoretical and experimental studies were conducted on thermal energy storage utilizi...

The major and challengeable restriction facing coal power plants (CPPs) is the emission of polluting gases caused by burning coal. Therefore, adopting the reasonable and practical solutions toward mitigate the emission of pollutants is needful. The integration of renewable technologies and energies with such plants can be possible in achieving high...

Energy storage is among the factors that could reduce the use of fossil fuels. Having a large heat storage capacity, phase change materials found their wide applications in energy storage applications. The present study investigates the effect of using phase change materials on the performance of a double pipe heat storage system. The three-dimensi...

In this computational work, the Tetrahydrofuran (THF) hydration process in the vicinity of the Copper (Cu) matrix was reported by the molecular dynamics simulation (MDS). Our MDS outcomes are described with various physical parameters like total energy (TE), number of the atomic cage, hydrate layers, and enthalpy value. This study represents all st...

Thermal energy storage plays a major role in applying thermal energy sources such as waste heat and solar energy. As an efficient storage technique, the development of latent heat storage systems is a key factor for the successful application of thermal energy. This work presents thermal characteristics of a shell-and-tube phase change material (PC...

Nowadays, the emission of CO 2 has become a serious issue around the globe, upon which the Earth's temperature has dramatically risen. In this concern, a multi-energy CHP-based microgrid (MG) is considered to meet the multi-energy energy smart cities. As many generation units emit carbon dioxide, a power-to-gas (P2G) facility is considered in this...

In this paper, the thermal conductivity (knf) of cerium oxide/ethylene glycol nanofluid is extracted for different temperatures (T = 25, 30, 35, 40, 45, and 50 °C) and the volume fraction of nanoparticles (φ= 0, 0.25, 0.5, 0.75, 1, 1.5, 2 and 2.5%) and then knf is predicted by two methods including Artificial Neural Network (ANN) and fitting method...

In the present research, heat transfer behavior and Ag/water two-phase laminar nanofluid flow as cooling fluid in volume fraction of nanoparticles 0–6 % and Reynolds numbers of 200–500 in a tube with curvature angle of 270° are simulated utilizing finite volume method. 3-D simulations of laminar mixed convection two-phase nanofluid flow considering...

In this study, combining an excellent intrinsic property of polylactic acid (PLA) with the unique properties of three-dimensional (3D) printing technique and coating of chitosan-hydroxyapatite (CHI-HA) is used with electrospun nanofibers for the regeneration of hard tissues. This study aims to fabricate a microstructural scaffold with a PLA base by...

Non-Newtonian fluids are encountered in many engineering applications, such as the petroleum industry and lubrication. In this investigation, the Magnetohydrodynamic (MHD) and convective boundary (heater) are assumed to analyze the heat transport phenomena of non-Newtonian type Carboxy-Methyl-Cellulose (CMC)/Aluminum oxide (Al2O3) hybrid nanofluid...

The use of solar energy is highly welcomed due to its availability everywhere. Among the types of solar energy technologies, the use of this type of energy to produce heat from different aspects is much more common, so in this research we have tried to examine different aspects of producing thermal energy from solar energy to supply the heat requir...

This paper numerically investigates cooling of a cubic pack of nine cylindrical type lithium-ion batteries. The pack is first equipped with three separate ducts to convey alumina (Al2O3)/water nanofluids (NFs), and all the assembly of battery cells and ducts are then dipped in a phase-change material (PCM). Simulations are carried out to investigat...

The production of electric vehicles and their accessories is grooming day by day in the automotive industry. The heart of these electric vehicles is the power source, which is known as batteries. The capacity and performance of such batteries demand a high rating, due to the customer's need and improved vehicle features. Unfortunately, the batterie...

In this work, a battery pack (BAPA) containing 21 cylindrical battery cells was investigated. Active and passive approaches are used to regulate the battery's thermal management (THM). An enclosure packed with phase change material (PCM) surrounding the battery is employed for passive heat control. For the active method, forced airflow is utilized....

This paper simulates a battery pack with 45 lithium-ion battery cells. As the coolant in the laminar flow range, the air fluid is responsible for cooling these cylindrical batteries. The battery cells are arranged in three different shapes, lozenge, rectangle and triangle. By changing the Re in the range of 500 to 2000, the temperature values of th...

In this paper, the thermal management (THM) of a battery pack (BPK) with 9 cylindrical batteries is numerically modeled. The batteries are 18,650 lithium-ion (LIN) type, which are placed in an air duct. A capsule of Phase Change Materials (PCM) is placed around all the LIN battery cells. The PCM used was CaCl 2 .6H 2 O, which was oval in the PCM ca...

Nowadays, due to restrictions on fossil fuels, the use of renewable energies is increasing day by day. Among renewable energies, solar energy has received more attraction due to its availability in all places. Among solar energy technologies, the solar tower has been welcomed due to its high power generation of electrical energy. For accurate model...

In this study, the rotating twisted tape and its effect on fluid flow and heat transfer as well as Performance Evaluation Criterion (PEC) in a tube under constant heat flux is investigated. The twisted tapes are examined in two rotating and stationary cases, namely four geometric cases of Plain Tube (PT), tube equipped with Stationary Twisted Tape...

Functionally graded (FG) materials have shown excellent thermoelastic and creep performance , being considered as excellent materials for cylindrical shells subjected to thermo-mechanical loads. This review provides a detailed account of thermoelastic and creep properties of FG cylindrical shells. A review of governing equations on properties of FG...

Concerns about limited energy resources and environmental problems are growing. One of the solutions to increase energy efficiency is to produce it sparsely. In this regard, cogeneration systems are of particular importance. The home sector is one of the most consumed sectors due to the potential of solar radiation in this country, a system of simu...

Nanofluids are liquid suspensions of hard nanometer-sized particles suspended in a base fluid. The suspension of small solid particles in energy transmission fluids enhances their thermal conductivity and provides an inexpensive and creative way to greatly boost their heat transfer (HT) properties. It is possible to add nanofluids to various indust...

The present study simulates a solar thermal panel using the finite element method (FEM) in COMSOL Multiphysics. A cropper pipe of a water-Al2O3 nanofluid flow was used under a solar panel. A number of elliptic fins were attached to the pipe. The fins were holed and configured in three models. The system of the pipe and fins was placed in a chamber...

The formation of hydrophilic (HPI) and hydrophobic (HPO) surfaces in the walls of simulated aluminum nanochannels (NC) directly impacts the thermal and atomic conduct of nanofluids (NFs). In the present examination, the thermal and atomic conduct of ammonia-Cu nanofluid in an aluminum NC with the walls of the HPI, HPO surfaces (TiO2/Carboxylic acid...

The boiling process is an efficient and effective transfer of heat. Generally, different parameters such as temperature, pressure, external forces, etc., amend the nanofluid's pool boiling heat transfer (PBHT) rate. The present article uses molecular dynamics (MD) simulation to study the efficacy of different external forces(Efs) and heat fluxes (H...

With recent technological advances in nanotechnology, solid particles in nanometer dimensions are being produced. Researchers have created a new nanofluid (NF) fluid with excellent thermal properties using these nanoparticles (NPs). This study examines the influence of the CuO NPs' length on the atomic conduct and phase transition duration of water...

The primary purpose of this work is to analyze the intermediate behaviors in the thermal response of an absorber plate of a flat-plate solar collector, considering the non-Fourier effects. The Caputo fractional derivative is applied and the time-fractional single-phase-lag (FSPL) model is presented to study the non-diffusive process in the heat con...

Since Lithium-Ion Batteries (LIBs) have been major power sources for Electric Vehicles (EVs) and Energy Storage Devices (ESDs), Battery Thermal Management (BTM) has attracted the attention of numerous investigators. On the other hand, the application of Phase Change Materials (PCMs) in heatsinks (HSs) is an effective technique that has been approve...

The microfluidic systems' thermal performance in various industries is affected by the fluid flow within their micro/nanochannels. This study aimed to investigate the boiling process of samples simulated in micro/nanochannel by molecular dynamics simulation. In the present study, the boiling time inside the micro/nanochannel is investigated at diff...

The current work describes the synthesis of Nano magnetic catalysts, oil extraction from fish waste and processing of biodiesel. The first-order thermodynamic equations are considered to determine its kinetic and thermodynamic parameters involved in extraction process. The study has considered the rate constant (k), activation energy (Ea), frequenc...

In this research, experimental and numerical investigates were conducted on the effect of adding Nano fluid ( α −AL 2 O 3 , γ − AL 2 O 3 , CuO) with different concentrations (1 %, 3%, and 5%) on the thermal properties of water. The heat exchanger system was designed with fin types with different holes (circular, triangular, elliptical and without h...

Vehicular ad hoc networks (VANETs) are wireless communications networks that use low-tech wireless technologies to create unstable networks among road users. These networks are designed to make the connection between vehicle control and road traffic control. Congestion-based collection optimization is used to discovery near-optimal solutions since...

With the accelerated development of Internet finance, electronic funds transfer, and the rapid growth of credit card activity, credit cards play a very important role in every area of life today. There are some risks in this regard that are considered serious threats to both issuers and cardholders. The increasing number of fraudulent credit card t...

The metal-to-metal connection uses a special welding process, the quality control of which is so important that today the visual control method of destructive analysis has almost replaced the automatic non-destructive detection of welding defects. Among non-destructive methods, this particular method is more comprehensive due to the cheapness of ra...

Proton transfer (PT) reactions, in particular single (SPT), double (DPT) or multiple (MPT), are widespread phenomena in many branches of the life sciences. These reactions proceed through the transfer of the proton between donor and acceptor atoms, in some cases catalyzed by water molecules acting as a connector between these donor and acceptor ato...

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