دانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220The effect of channel inlet angle on the square gas cyclone performance: A Numerical StudyThe effect of channel inlet angle on the square gas cyclone performance: A Numerical Study1871149410.22034/cmes.2024.2020680.1020FAفرزادپروازDepartment of Mechanical Engineering, Semnan University, P.O. Box 35131-191, Semnan, IranجمالفروزشDepartment of Metallurgy and Materials Science, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iranنیهاناویگور باباقلوDepartment of Environmental Engineering, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkeyسیدحسینحسینیگروه شیمی، دانشکده فنی و مهندسی، دانشگاه ایلام، ایلام، ایرانگودرزاحمدیDepartment of Mechanical and Aerospace Engineering, Clarkson University, Potsdam, NY 13699-5725, USAخیریالصیدMechanical Power Engineering Department, Faculty of Engineering - Mataria, Helwan University, Masaken ElHelmia P.O. Cairo 11718, Egypt.Journal Article20240118This study focuses on investigating the impact of the inlet angle on flow patterns and performance in square gas cyclones using Computational Fluid Dynamics (CFD). Gas cyclones are commonly used in various industries to remove solid particles of different sizes and densities from gas streams. The present CFD model employed Reynolds Stress Modeling (RSM) to simulate the continuous phase and assess airflow behavior within square gas cyclones. The collection efficiency, which measures the ability of the cyclone to separate solid particles from the gas stream, was evaluated for different inlet angles under the assumption of one-way coupling. The results of the study indicated that the best inlet angle for the gas cyclone is 60 degrees, surpassing the performance of the other tested angles. Additionally, an inlet angle of 30 degrees resulted in a lower pressure drop compared to other cases. The study also found that the minimum and maximum turbulence intensities occurred at the inlet and the inner vortex finder, respectively. Furthermore, increasing the inlet velocity was found to enhance the collection efficiency, with the best performance achieved at a tangential inlet angle of 60 degrees, exhibiting the highest-grade efficiency compared to other angles. In summary, this study provides valuable insights into the impact of inlet angle on flow patterns, pressure drop, turbulence intensity, and collection efficiency in square gas cyclones, utilizing computational modeling techniques.This study focuses on investigating the impact of the inlet angle on flow patterns and performance in square gas cyclones using Computational Fluid Dynamics (CFD). Gas cyclones are commonly used in various industries to remove solid particles of different sizes and densities from gas streams. The present CFD model employed Reynolds Stress Modeling (RSM) to simulate the continuous phase and assess airflow behavior within square gas cyclones. The collection efficiency, which measures the ability of the cyclone to separate solid particles from the gas stream, was evaluated for different inlet angles under the assumption of one-way coupling. The results of the study indicated that the best inlet angle for the gas cyclone is 60 degrees, surpassing the performance of the other tested angles. Additionally, an inlet angle of 30 degrees resulted in a lower pressure drop compared to other cases. The study also found that the minimum and maximum turbulence intensities occurred at the inlet and the inner vortex finder, respectively. Furthermore, increasing the inlet velocity was found to enhance the collection efficiency, with the best performance achieved at a tangential inlet angle of 60 degrees, exhibiting the highest-grade efficiency compared to other angles. In summary, this study provides valuable insights into the impact of inlet angle on flow patterns, pressure drop, turbulence intensity, and collection efficiency in square gas cyclones, utilizing computational modeling techniques.https://cmes.ilam.ac.ir/article_711494_fc34da98c6903e1408684464be3616b8.pdfدانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220The effect of curves of tangential channel on gas cyclone performanceThe effect of curves of tangential channel on gas cyclone performance91871305710.22034/cmes.2024.2024131.1022FAFarzadParvazدانشگاه سمنانJournal Article20240102In present numerical simulation, using of RSM model assesses behavior of flow pattern in different gas cyclones and presumed that interaction of particle-particle is neglected ( one way coupling) that results indicate that installing angle curves at the end of tangential channel can improve collection efficiency than a conventional gas cyclone and pressure drop decreases nearby walls and also such curves can lead to stabilization of vortex end in the bottom of cone and increasing tangential velocity clos to walls. Increasing particle size and inlet velocity improve collection efficiency at all gas cyclone. <br /><br />Cyclone separators or Aero-cyclones have been widely used in industrial applications [1], such as chemical processes and food drying. This device is popular among researchers and engineers due to its small size, low cost, and easy launching. In gas cyclones, the continuing phase ( AIR ) enters the inlet channel tangentially inside the cylindrical part. Due to the conical and cylindrical parts of the gas cyclone, it is a high swirl flow that causes turbulent gas flow. Numerical works have been carried out by many researchers who evaluate gas cyclone performance with geometrical changes. Gao et al.[2] have investigated the effect of central tubes in oil-gas cyclones. They reported that the effect of diameter is higher than high on gas flow. Raoufi et al.[3] studied the different shapes of vortex finder in a stairmand gas cyclone.In present numerical simulation, using of RSM model assesses behavior of flow pattern in different gas cyclones and presumed that interaction of particle-particle is neglected ( one way coupling) that results indicate that installing angle curves at the end of tangential channel can improve collection efficiency than a conventional gas cyclone and pressure drop decreases nearby walls and also such curves can lead to stabilization of vortex end in the bottom of cone and increasing tangential velocity clos to walls. Increasing particle size and inlet velocity improve collection efficiency at all gas cyclone. <br /><br />Cyclone separators or Aero-cyclones have been widely used in industrial applications [1], such as chemical processes and food drying. This device is popular among researchers and engineers due to its small size, low cost, and easy launching. In gas cyclones, the continuing phase ( AIR ) enters the inlet channel tangentially inside the cylindrical part. Due to the conical and cylindrical parts of the gas cyclone, it is a high swirl flow that causes turbulent gas flow. Numerical works have been carried out by many researchers who evaluate gas cyclone performance with geometrical changes. Gao et al.[2] have investigated the effect of central tubes in oil-gas cyclones. They reported that the effect of diameter is higher than high on gas flow. Raoufi et al.[3] studied the different shapes of vortex finder in a stairmand gas cyclone. y.https://cmes.ilam.ac.ir/article_713057_163c8f2be9bb04e38a4274f405dbcc36.pdfدانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220Solving the Double Row Layout Problem via Barnacles Mating OptimizerSolving the Double Row Layout Problem via Barnacles Mating Optimizer193571305910.22034/cmes.2024.2024013.1021FAمسعودصیدیدانشکده فنی مهندسی، دانشگاه ایلام، ایلام، ایلام، ایرانسید محمدزندیهدانشگاه ایلامJournal Article20231231One of the most important problems in facility planning is designing the layout of facilities, which has a lot of variety. Most of the facility layout problems are of the NP-hard type, so the method of solving them has a great impact on the quality of the solutions. The meta-heuristic methods of solving the layout problem were investigated in the literature. The most widely used solution method is the Genetic Algorithm. In this research, Barnacles Mating Optimizer (BMO) algorithm was used for the first time to solve a double row layout problem. A practical computer program was designed in which two BMO and GA were used to solve the problem. After solving a common problem by both algorithms, the results showed the superiority of BMO algorithm. The improvement value of the objective function in the DRLP, using BMO, is equal to 48%. As the initial population and the number of iterations increase in BMO, the improvement of the objective function increases. The designed computer program has the ability to solve problems of different sizes.One of the most important problems in facility planning is designing the layout of facilities, which has a lot of variety. Most of the facility layout problems are of the NP-hard type, so the method of solving them has a great impact on the quality of the solutions. The meta-heuristic methods of solving the layout problem were investigated in the literature. The most widely used solution method is the Genetic Algorithm. In this research, Barnacles Mating Optimizer (BMO) algorithm was used for the first time to solve a double row layout problem. A practical computer program was designed in which two BMO and GA were used to solve the problem. After solving a common problem by both algorithms, the results showed the superiority of BMO algorithm. The improvement value of the objective function in the DRLP, using BMO, is equal to 48%. As the initial population and the number of iterations increase in BMO, the improvement of the objective function increases. The designed computer program has the ability to solve problems of different sizes.https://cmes.ilam.ac.ir/article_713059_f63ffa0719413f7f5507f67c72992df8.pdfدانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220Methods of determining the harmonic contribution in the electricity company and the customerروش های تعیین سهم هارمونیک در شرکت برق و مشتری364071307110.22034/cmes.2024.2027740.1025FAوحیدفرهادیانگروه مهندسی برق، دانشکده فنی و مهندسی، دانشگاه شاهد تهران، تهران، ایرانJournal Article20231219Today, electronic power circuits have improved in providing the required power on the one hand, and on the other hand, they have also increased the harmonic emission, which itself has caused problems such as line losses and excessive heating, etc. One of the issues and problems of power quality in distribution systems And transmission is the issue of harmonics, which has attracted a lot of attention, so that many materials in this regard can be found in various books and articles. Harmonic distortions cause certain problems in power networks. Among these problems, it can be mentioned that the equipment does not function properly, as well as reducing the life and efficiency of the devices. Power quality problems cause discomfort to consumers and economic losses to industries, which harmonics are caused by loads. Non-linearity and power electronic devices are created. These loads usually comprise 40% of the load. Technical losses are usually allowed up to 5%, which automatically increase to more than 7% due to harmonics. Harmonics can be found in electromechanical meters and also some types of meters that They are smart, they influence by using their converters.امروزه مدارهای الکترونیک قدرت در تامین توان موردنیازازیک سو بهبود بخشیده از سوی دیگر انتشار هارمونیک را نیز افزایش داده‌اند، که خود باعث مشکلاتیمانند تلفات خط و گرمایش بیش از حد و...شده است.یکی از مسائل و مشکلات کیفیت برق در سیستم های توزیع وانتقال،مسئله هارمونیک ها می باشد ،که توجه زیادی را به خود جلب نموده است.بطوریکه مطالب بسیاری دراین خصوص میتوان در کتب ومقالات گوناگون جستجو نمود. اعوجاج های هارمونیکی باعث ایجادمشکلات خاصی در شبکه های قدرت میشوداز جمله ی این مشکلات می توان به عدم عملکرد مناسب تجهیزات و نیزکاهش عمر و پایین امدن راندمان دستگاه ها اشاره کرد.مشکلات کیفیت برق باعث ناراحتی مصرف کنندگان و ضرر‌های اقتصادی به صنایع می‌شودکه هارمونیک‌ها توسط بارهای غیر خطی و دستگاه‌های الکترونیک قدرتی ایجاد می‌شوند .این بارها معمولاً 40 درصد، بار مصرفی راشامل میشوندتلفات فنی معمولاً تا 5 % مجاز است که به طور خودکار به بیش از 7 % به دلیل هارمونیک‌ها افزایش می‌یابد.هارمونیک‌ها می‌توانند برکنتورهای الکترومکانیکی وهمچنین برخی ازانواع کنتورهایی که هوشمندهستند ،با استفاده از مبدل‌های خود تاثیر میگذارند.https://cmes.ilam.ac.ir/article_713071_46f4dd16b74ce6d75721ee79101a667a.pdfدانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220Digital poetry production using neural networksDigital poetry production using neural networks414571309310.22034/cmes.2024.2028758.1026FAعلیابدالیبخش کنترل و ابزار دقیق شرکت نفت فلات قاره ایران، خارگ، بوشهر، ایرانJournal Article20231224intelligence has influenced on everything and faced the social reaction with the modern phenomena. Function of artificial intelligence in human life is increasingly developing in a range of industrial and medical technologies to communicational networks, human sciences and even art. Digital poetry genre along with the digital art has found its fans a few years and its different branches are appearing. Performance of poem in the digital environment and use of software facilities for producing the aesthetics in the language are of achievements of this genre. In this paper, using the neural networks and genetic algorithm, we have designed an artificial poet who enables to compose the Persian harmonic and classic poetry with the extraction of words from the database. Hence, we first make a database from words and extract them by designing a program, then we produce the rhythmic hemistich and rhymed verses by using the genetic algorithm, then we classify our poetic products in the varied rhythms using the neural networks.intelligence has influenced on everything and faced the social reaction with the modern phenomena. Function of artificial intelligence in human life is increasingly developing in a range of industrial and medical technologies to communicational networks, human sciences and even art. Digital poetry genre along with the digital art has found its fans a few years and its different branches are appearing. Performance of poem in the digital environment and use of software facilities for producing the aesthetics in the language are of achievements of this genre. In this paper, using the neural networks and genetic algorithm, we have designed an artificial poet who enables to compose the Persian harmonic and classic poetry with the extraction of words from the database. Hence, we first make a database from words and extract them by designing a program, then we produce the rhythmic hemistich and rhymed verses by using the genetic algorithm, then we classify our poetic products in the varied rhythms using the neural networks.https://cmes.ilam.ac.ir/article_713093_770ec1653373e534588af5100f557cd2.pdfدانشگاه ایلامروشهای محاسباتی در علوم مهندسی2981-09651420240220The use of PSO algorithm in the optimal management of charging stations for hybrid electric vehicles in electric energy distribution networksاستفاده از الگوریتم MPSO در مدیریت بهینه ایستگاه های شارژ خوروهای هیبرید در شبکه های توزیع انرژی الکتریکی465271309410.22034/cmes.2024.2027372.1024FAمرادمحمدیاندانشگاه پیام نور.واحد سبزوارJournal Article20240127In recent years, due to the problems of fossil fuel supply, environmental pollution and the advancement of electric vehicle manufacturing technology, special attention has been paid to this direction. In such a way that this industry is spreading all over the world with its upward growth. Therefore, one of the challenges facing this industry is the need to build fast charging stations to encourage consumers to switch to this clean means of transportation with little cost and very fast time compared to home chargers. In this context, the optimal location of charging stations is investigated by multi-objective particle optimization algorithm and MPSO with environmental factors and service radius of electric vehicle charging stations. Then, the objective function of optimizing electric vehicle charging stations to minimize the total costs associated with the objective function is solved by the MPSO particle optimization algorithm. Finally, the simulated results in IEEE standard bus distribution systems show that the optimization model and method can achieve a reasonable optimization for charging stations and help reduce network losses and improve the voltage profile.در سال‌های اخیر با توجه به مشکلات تامین سوخت فسیلی، آلودگی‌های محیط زیستی و پیشرفت تکنولوژی ساخت خودروهای الکتریکی، توجه خاصی به این سمت معطوف شده است. به گونه‌ای که این صنعت با رشد صعودی در حال فراگیر شدن در سرتاسر دنیا می‌باشد. از این رو یکی از چالش‌های پیش‌رو این صنعت، لزوم احداث ایستگاه‌های شارژ سریع می‌باشد تا با هزینه اندک و زمان بسیار سریع نسبت به شارژرهای خانگی باعث تشویق مصرف کننده‌گان جهت روی آوردن به این وسیله حمل و نقل پاک شود. در این زمینه، مکان بهینه ایستگاه‌های شارژ، توسط روش الگوریتم بهینه سازی ذره‌ای چند هدفه وMPSO با عوامل محیطی و شعاع سرویس دهی و خدمات رسانی ایستگاه‌های شارژ خودروهای برقی مورد بررسی قرار می‌گیرد. سپس تابع هدف بهینه سازی ایستگاه‌های شارژ خودروهای برقی برای به حداقل رساندن کل هزینه‌های مرتبط با تابع هدف، توسط الگوریتم بهینه سازی ذره ای MPSO حل می‌گردد. سرانجام نتایج شبیه سازی شده در سیستم‌های توزیع استاندارد باسه IEEE نشان می‌دهد که مدل و روش بهینه سازی، می‌تواند باعث دست یابی به یک بهینه سازی معقول برای ایستگاه‌های شارژ شود و به کاهش تلفات شبکه و بهبود پروفیل ولتاژ کمک نماید.https://cmes.ilam.ac.ir/article_713094_82fa2c9c11e49aceed054a18cd2cca50.pdf