Salahshour, Soheıl

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Soheil Salahshour
Salahshour, Soheıl
Soheil SALAHSHOUR
Salahshour, Soheil
Soheıl Salahshour
Soheıl SALAHSHOUR
SALAHSHOUR Soheıl
Salahshour Soheil
Salahshour S.
Salahshour, S.
SALAHSHOUR Soheil
Salahshour Soheıl
Soheıl, Salahshour
S., Salahshour
Salahshour,S.
Job Title
Dr.Öğr.Üyesi
Email Address
soheil.salahshour@okan.edu.tr
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WoS Researcher ID
Scholarly Output

139

Articles

136

Citation Count

26

Supervised Theses

0

Scholarly Output Search Results

Now showing 1 - 10 of 139
  • Article
    Citation Count: 2
    Numerical examination of exergy performance of a hybrid solar system equipped with a sheet-and-sinusoidal tube collector: Developing a predictive function using artificial neural network
    (Elsevier, 2024) Sun, Chuan; Salahshour, Soheıl; Sajadi, S. Mohammad; Li, Z.; Jasim, Dheyaa J.; Hammoodi, Karrar A.; Alizadeh, As'ad
    Integrating cooling systems with photovoltaic-thermal (PVT) collectors has the potential to mitigate the exergy consumption in the building sector due to their capability for simultaneous power and thermal energy generation. The simultaneous utilization of nanofluid and geometry modification resulted in a synergetic enhancement in the performance of PVTs and thereby reducing their sizes and costs. In addition, there is still a lack of high accurate predictive model for the estimation of the performance of PVTs at a given Re number and nanofluid concentration ratio to be used in engineering design for the further product commercialization. To this end, the current numerical study investigates the exergy electricity, thermal, and overall exergies of a building-integrated photovoltaic thermal (BIPVT) solar collector with Al2O3/water coolant. The increase in nanoparticle concentration (omega) from 0 % to 1 % increased the useful thermal exergy and overall exergy efficiency (Exu,t/ Yov) by 0.3999 %/0.0497 %, 1.3959 %/0.2598 %, and 0.7489 %/0.1771 % at Re numbers of 500, 1000, and 1500, respectively, while Exu,t/ Yov exhibited a reducing trend at Re = 2000; 0.3928 %/0.1056 % decrease. In addition, the increase in omega from 0 % to 1 % caused the useful electricity and electrical exergy (Exu,e/ Ye) to be diminished by 0.0060 %/0.0025 % at Res 500 and 1000, and to be escalated by 0.0113 %/0.0055 % at Res of 1500 and 2000. Meanwhile, the Re augmentation, from 500 to 2000, improved the Exu,t, Exe, Ye, and Yov by 60 %, 1.26 %, 1.26 %, and 17.50 %, respectively, at different omega s. In addition, two functions were developed and proposed by applying a group method of data handling-type neural network (GMDH-ANN) to forecast the value of Υov based on two input values (Re and omega). The results showed high accuracy of the proposed model with MSE, EMSE, and R2 of 0.0138, 0.1143, and 0.99785, respectively.
  • Article
    Citation Count: 0
    Performance of proton exchange membrane fuel cell system by considering the effects of the gas diffusion layer thickness, catalyst layer thickness, and operating temperature of the cell
    (Elsevier, 2024) Hamedi, Sajad; Salahshour, Soheıl; Al-Zahiwat, Murtadha M.; AL-Hamairy, Ahmed Khudhair; Jasim, Dheyaa J.; Salahshour, Soheil; Esmaeili, Sh
    Background: In this research, the effect of anode and cathode channel cross-sectional shape on the performance of PEM fuel cell was investigated and the appropriate length and dimensions of the channel were determined. Finally, for the determined geometric conditions, the cell performance at different voltages was investigated. Methods: The purpose of this study was to investigate the structural characteristics of the fuel cell on its performance. The results show that the pressure and temperature in the catalyst layer (CL) of the cathode side are greater than the anode, and the temperature in the central regions of the catalyst layer is higher than the lateral regions. Also, the channel with a length of 100 mm is optimal in terms of producing the maximum current density and the amount of pressure drop is much lower than the channel with a length of 150 mm, which reduces the power consumption of the cell. Significant findings: In general, a higher electric current is produced by increasing the thickness of the gas diffusion layer (GDL) and the catalyst layer. At a voltage of 0.8 V, with increasing thickness from 0.25 mm to 0.5 mm, the current density increases above 6 %. The percentage increase in current density at 60 degrees C-80 - 80 degrees C for 0.85 V and 0.75 V voltages is 42.1 % and 9.28 %, respectively.
  • Article
    Citation Count: 0
    On the optical wave structures to the fractional nonlinear integrable coupled Kuralay equation
    (World Scientific Publ Co Pte Ltd, 2024) Li, Ming; Salahshour, Soheıl; Younas, U.; Rezazadeh, Hadi; Hosseinzadeh, Mohammad Ali; Salahshour, Soheil
    This paper is mainly concerning the study of truncated M-fractional Kuralay equations that have applications in numerous fields, including nonlinear optics, ferromagnetic materials, signal processing, engineering fields and optical fibers. Due to its ability to clarify a wide range of sophisticated physical phenomena and reveal more dynamic structures of localized wave solutions, the Kuralay equation has captured a lot of attention in the research field. The newly designed integration methods, known as the modified Sardar subequation method and enhanced modified extended tanh expansion method are used as solving tools to validate the solutions. The goal of this study is to extract several kinds of optical solitons, such as mixed, dark, singular, bright-dark, bright, complex and combined solitons. Due to the many potential applications for superfast signal routing techniques and shorter light pulses in communications, the optical propagation of soliton in optical fibers is now a topic of significant interest. In nonlinear dispersive media, optical solitons are stretched electromagnetic waves that maintain their intensity due to a balance between the effects of dispersion and nonlinearity. In addition, exponential, periodic, hyperbolic solutions are generated. The applied approaches are efficient in explaining fractional nonlinear partial differential equations by providing pre-existing solutions and also producing new solutions by combining results from multiple processes. Additionally, we plot the contour, 2D, and 3D graphs with the associated parameter values to visualize the solutions. The results of this study show the effectiveness of the approaches adopted and help enhance comprehension of the nonlinear dynamical behavior of specific systems. We expect that a substantial amount of engineering model specialists will greatly benefit from our work. The findings demonstrate the efficacy, efficiency, and applicability of the computational method employed, particularly in dealing with intricate systems.
  • Article
    Citation Count: 0
    Effects of wall material, working fluid, and barriers on performance of a nano flat-plate heat pipe: Molecular dynamics simulation
    (Elsevier, 2024) Salahshour, Soheıl; Basem, Ali; Alizadeh, As'ad; Abdul-Redha, Hadeel Kareem; Ahmadi, Gholamreza; Salahshour, Soheil
    The use of microscale heat generating or heat transfer equipment with higher capacity and smaller dimensions requires more accurate management and better disposal of their produced heat. This makes the necessity of designing and manufacturing superconductors completely clear. In the meantime, the nano-grooved flat plate heat pipes (FPHP) have gained the industry's attention. Due to the provision of the conditions for manufacturing devices on a micro scale, it is possible to integrate this type of heat pipe with other microscale devices. In the meantime, understanding their behavior on small scales requires more studies. In this paper, the effect of using barriers to improve the thermal performance of a nano FPHP (1050 x 220 x 95 & Aring;) is evaluated. Simulations are performed on a molecular scale through molecular dynamics (MD) simulations using LAMMPS (R) software. Platinum (Pt), copper (Cu), and aluminum (Al) are used for HP's body. In addition, argon (Ar), water (H2O), and ethanol (EtOH) are used as working fluids. The results show that increasing the number of barriers leads to improved thermal performance. Different cases include different teeth called barriers augmented inside HP are simulated. The combination of Cu-EtOH showed the best thermal performance (about 18 % better than other cases). Cubical barriers have more heat flux improvement than conical ones (from 3.5 % up to about 10.7 %). Among the three fluids used, EtOH leads to a better heat flux (about 6 % for Pt and up to 15 % for Cu). Using 24 barriers, a very favorable result of 1992 W/cm2 heat flux is achieved. In this case, the minimum heat flux is obtained by using Pt and Ar and is 1609 W/cm2. Using Ar and the cub shape barriers, the highest mass transfer rates for Pt, Cu, and Al are about 35.2 %, 38.9 %, and 38 %, respectively.
  • Article
    Citation Count: 2
    Experimental study of phase change material (PCM) based spiral heat sink for the cooling process of electronic equipment
    (Elsevier, 2024) Wang, Yu; Salahshour, Soheıl; Sajadi, S. Mohammad; Smaisim, Ghassan Fadhil; Hadrawi, Salema K.; Nasajpour-Esfahani, Navid; Toghraie, D.
    Today, every device that a person uses depends on electronic equipment, frequent and long-term use of it causes to heat up and as a result, slow down the speed and performance of that device. In more important and sensitive equipment such as medical equipment, slow speed and reduced performance cause irreparable damage. Therefore, to cool these devices, their internal electronic equipment must be cooled. In studies by others, the simultaneous use of several phase change materials and airflow in the form of layer-by-layer contact was usually less studied. In this study, using CNC machining, a heatsink consisting of 2 spirals was produced. In the first spiral, PCM Paraffin Wax with different volume percentages and in the second spiral, the presence or absence of forced airflow in heat transfer rate 2.9 W to 3.7 W was tested with a step of 0.4 W and the results were that by adding %50 PCM and adding 100 % PCM to the system, its performance increases by 7.19 % and 44.91 %, respectively, which shows using the maximum volume capacity of PCM increases efficiency. Also, by adding forced airflow to the system, its performance has increased by 7.71 %. It can be said that if the forced airflow in the system is used layer by layer, it prevents the heat from concentrating in certain parts of the heatsink and the circuit, which results in the same heating of the whole system and the heat is evenly distributed throughout the heatsink.
  • Article
    Citation Count: 1
    Artificial neural network modeling of thermal characteristics of WO3-CuO (50:50)/water hybrid nanofluid with a back-propagation algorithm
    (Elsevier, 2024) Qu, Yiran; Salahshour, Soheıl; Sajadi, S. Mohammad; Salahshour, Soheil; Khabaz, Mohamad Khaje; Rahmanian, Alireza; Baghaei, Sh.
    Thermophysical properties such as thermal conductivity (knf) make the use of fluid suitable for heat transfer. Fluids such as water have limited applications due to their low thermal conductivity. One of the new methods to improve the properties of fluids is to add nanoparticles with high thermal conductivity and create a nanofluid. Nanofluids combine the suspension of two or more nanoparticles in a base fluid or the suspension of hybrid nanoparticles in a base fluid. This study investigates the thermal behavior of WO3-CuO (50:50)/water nanofluid using an artificial neural network (ANN) and back -propagation algorithm. The results show that increasing the volume fraction of nanoparticles (phi) (due to increasing the surface -to -volume ratio) increases the knf. In this study, ANN modeling for WO3-CuO/water (50:50) hybrid nanofluid was performed to investigate the effect of nanofluid on knf. These two important parameters are phi and temperature. The results show that increasing the phi increases the knf due to increasing the surface -to -volume ratio and the collision between nanoparticles. Increasing the temperature shows a similar effect and improves the knf by increasing the interaction between the nanoparticles. The effect of temperature on the knf is more significant than the phi, equal to 16.33% and 6.72%, respectively. Function parameters such as correlation and error value for hidden layer 7 and 12 neurons are about 0.982, 0.981, and 10-6, respectively. As a result, ANN models offer acceptable performance in estimating knf, and the correlation coefficients and error values are 0.96 and 10-6, respectively. Given the absolute error value, it can be concluded that the proposed models can predict the knf of WO3-CuO (50:50)/water hybrid nanofluid.
  • Article
    Citation Count: 0
    A molecular dynamics study of the effect of initial pressure on the mechanical resilience of aluminum polycrystalline
    (Elsevier, 2024) Salahshour, Soheıl; Jasim, Dheyaa J.; Alizadeh, As'ad; Chan, Choon Kit; Salahshour, Soheil; Hekmatifar, Maboud
    Polycrystalline materials are essential in engineering due to their ability to withstand various forces, heat, and environmental conditions. The arrangement of atoms within these crystals significantly affects their mechanical properties. This study used molecular dynamics simulations to explore how initial pressure affects the mechanical resilience of aluminum polycrystals. Aluminum composite materials, known for their strength, flexibility, and environmental sustainability, are the focus of this investigation. We particularly investigated stress- strain reactions at 1, 2, and 3 bar initial pressures. Reduced free volume causes atomic migration to be hampered as pressure increases, therefore affecting mean square displacement and diffusion coefficient. The results show that ultimate strength and Young's modulus of the polycrystalline samples were 30 and 6.64 GPa at 1 bar pressure. Moreover, the results demonstrated a notable decrease in mechanical performance by increasing pressure; the ultimate strength and Young's modulus of the polycrystalline samples diminished to 5.66 GPa and 22.43 GPa, respectively, at 3 bar. Furthermore, the heat flux increased by rising initial pressure in the Al- polycrystalline sample due to the compression of material that reduced atomic distances. This improved atomic arrangement facilitated more efficient heat transfer. These insights are essential for engineering applications, as they establish a foundation for the production of aluminum components that maintain structural integrity in the face of extreme conditions.
  • Article
    Citation Count: 1
    A bipolar intuitionistic fuzzy decision-making model for selection of effective diagnosis method of tuberculosis
    (Elsevier, 2024) Natarajan, Ezhilarasan; Salahshour, Soheıl; Saraswathy, Ranganathan; Narayanamoorthy, Samayan; Salahshour, Soheil; Ahmadian, Ali; Kang, Daekook
    Objectives: Tuberculosis (TB) is a contagious illness caused by Mycobacterium tuberculosis. The initial symptoms of TB are similar to other respiratory illnesses, posing diagnostic challenges. Therefore, the primary goal of this study is to design a novel decision-support system under a bipolar intuitionistic fuzzy environment to examine an effective TB diagnosing method. Methods: To achieve the aim, a novel fuzzy decision support system is derived by integrating PROMETHEE and ARAS techniques. This technique evaluates TB diagnostic methods under the bipolar intuitionistic fuzzy context. Moreover, the defuzzification algorithm is proposed to convert the bipolar intuitionistic fuzzy score into crisp score. Results: The proposed method found that the sputum test (T3) is the most accurate in diagnosing TB. Additionally, comparative and sensitivity analyses are derived to show the proposed method's efficiency. Conclusion: The proposed bipolar intuitionistic fuzzy sets, combined with the PROMETHEE-ARAS techniques, proved to be a valuable tool for assessing effective TB diagnosing methods.
  • Article
    Citation Count: 0
    Corrosion and mechanical properties of Al/Al2O3 composites fabricated via accumulative roll bonding process: Experimental and numerical simulation
    (Elsevier Science Sa, 2024) Salahshour, Soheıl; Daneshmand, Saeed; Alabboodi, Khalid O.; Ali, Ali B. M.; Jasim, Dheyaa J.; Salahshour, Soheil; Hekmatifar, Maboud
    With the advancement of science and technology and the construction of metal-based composites (MMC), it became possible to achieve improved properties that were not easily available in an alloy. In fact, with the emergence of such technology, manufacturers were able to adjust the resulting materials according to their needs in such a way as to provide mechanical strength, hardness, corrosion resistance, or other desired properties. These composites were used in various aerospace, automotive, construction, and production industries. Aluminum-based composites are among the structures that have taken an important place in the industry due to their lightweight and high strength. The present study produced bi-alloy aluminum-based 1060/5083 composites fabricated with alumina particles with a Hot ARBp at T = 380 degrees C. Also, the effect of rolling steps on the roll bonding mechanism is investigated using numerical simulation. As the novelty of this study and for the first time, a bi-alloy 1050/5083 composites reinforced Al2O3 particles via ARB process have been produced and then, potential dynamic polarization in 3.5 Wt% NaCl solution was used to study the corrosion properties of these composites. The corrosion behavior of these samples was compared and studied with that of the annealed aluminum. The study aimed to investigate the bonding behavior between the bi-alloy layers. So, as a result of enhancing influence on the number of ARBp, this experimental investigation revealed a significant enhancement in the main electrochemical parameters and the inert character of the Alumina particles. Reducing the active zones of the material surfaces could delay the corrosion process. Results showed that the corrosion resistance of the sample fabricated after six steps improved more than 100 % in comparison with the initial annealed Al alloy. Also, the average peeling force improved from 45 N to 94 N for the sample fabricated with six steps. Moreover, at a higher number of steps, the corrosion of MMC improved. Moreover, increasing the number of ARB steps illustrated an improvement in the wear resistance of samples. Finally, the samples' bonding interface, corrosion surface, and peeled surface were investigated using scanning electron microscopy (SEM).
  • Article
    Citation Count: 0
    Optimization of nanofluid flow in a mini-channel with semi-porous fins using response surface methodology based on the Box-Behnken design
    (Springer, 2024) Salahshour, Soheıl; Dehghani, Mostafa; Mahmoudi, Vahid; Toghraie, Davood; Salahshour, Soheil
    In this study, the geometric and hydrodynamic optimization of CuO nanofluid flow inside a mini-channel with semi-porous fins is investigated by the response surface methodology (RSM). The effects of Reynolds number (Re), porosity (epsilon\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varepsilon $$\end{document}), the volume fraction of nanoparticles (alpha\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\alpha $$\end{document}), and three geometric parameters (solid and porous rib heights (HS,HP\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${H}_{\text{S}},{H}_{\text{P}}$$\end{document}), and the pitch of ribs (PR)) on the Nusselt number (Nu\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Nu}$$\end{document}) and pumping power (PP\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{PP}$$\end{document}) are studied, numerically. By selecting 5 levels for each of the mentioned design variables, the Box-Behnken experimental design method decreases the number of total experiments from 15,625 to 54 numerical tests. Then, the CFD results were computed using the Ansys Fluent 19. Based on the CFD results and the ANOVA method, two unique quadratic models were proposed to predict the Nu\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Nu}$$\end{document} and PP\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{PP}$$\end{document} in the studied range. The ANOVA method revealed that all independent factors were significant and remained in the initial model for Nu\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Nu}$$\end{document}, while for the PP\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{PP}$$\end{document} response, the effect of epsilon\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\upvarepsilon $$\end{document} was insignificant. The graphical interpretation of results shows that to increase Nu\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Nu}$$\end{document} and to avoid increasing the PP\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{PP}$$\end{document} very much, it is suitable to increase alpha to 0.07 while keeping the Re\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Re}$$\end{document} less than 55. Finally, the optimization of the design variables based on the RSM method with alpha=0.7\%,epsilon=30\%,Re=55.72,HS=0.3mm,HP=0.7mm,and PR=6mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\alpha = 0.7{\text{\% }},{ }\varepsilon = 30{\text{\% }},{\text{ Re}} = 55.72,{ }H_{{\text{S}}} = 0.3{\text{ mm}},{ }H_{{\text{P}}} = 0.7{\text{ mm}},{\text{ and PR}} = 6{\text{ mm}}$$\end{document} results in a slight increase in Nu (9%) and a significant decrease in pumping power (more than three times reduction).