Majlesi Journal of Energy Management http://journals.iaumajlesi.ac.ir/em/index/index.php/em <p>The scope of MJEM is ranging from mathematical foundation to practical engineering design in all areas of energy management. The editorial board is international and original unpublished papers are welcome from throughout the world. The journal is devoted primarily to research papers, but very high quality survey and tutorial papers are also published.</p> <p>There is no publication charge for the authors.</p> <p><strong>Peer Review Process</strong></p> <p>Upon receipt a manuscript, the following process will be conducted. The submission will be checked to be within the scope of the journal. Articles which are not within the MJEM Scope will be rejected. The format of the paper will also be checked to obey the MJEM MSWord template. Also, the authors are required to submit an MSWord copy of their manuscript. Failing to do so, will result in immediate reject. The manuscript is then checked by a plagiarism detector tool. All submissions with more than 25% similarity reported by the tool will be rejected immediately.</p> <p>MJEM publishes only peer-reviewed papers. The editor-in-chief assigns each submitted manuscript to a Section Editor, who will rely on at least two anonymous reviewers to decide on the acceptance of the paper, on mandatory modifications, or rejection of the paper. The Author is responsible for checking the galley proofs prior to publication. The review process may take approximately two ~three months to be completed. Targeted publication time is six months from the end of the month in which the manuscript is received, provided that the author responds immediately to all communications. All judgments and findings in the peer-review process are objective. Upon assignment, each reviewer must state that he/she has no conflict of interest. They also point out any relevant published work which is yet to be cited.</p> <p><strong>Open Access Policy</strong></p> <p>The journal provides readers with immediate free access to all published content.</p> <p><strong>&nbsp;</strong></p> <p><strong>Publication Schedule</strong></p> <p>MJEM publishes quarterly in on the first of March, June, September, and December.</p> <p>&nbsp;</p> <p><strong>Publication Fee</strong></p> <p>There is no publication fee for publication in MJEM.</p> <p><strong>&nbsp;</strong></p> <p><strong>Copyright and access</strong></p> <p>The journal provides readers with immediate free access to all published content.</p> <p>All volumes are available for free and all articles are accessible in PDF format. The journal does not publish any hard copy of the issues.</p> <p>During the submission process, the authors will be asked to electronically sign a Transfer of Copyright. This will give the MJEM the right to publish the article and to take action in the case of improper use. Note that the purpose of transfer of copyright is not to prevent the authors to reuse their works nor to forbid to distribute their published articles in anyway except republications in other journals, conferences, books, and other resources.</p> <p>&nbsp;</p> <p><strong>Conflict of Interest:</strong></p> <p><strong>Obligations of Authors</strong></p> <p>The authors must report all sources of funding for the research presented. This include any kind of financial support, supply of equipment or materials, and other types of support.</p> <p>If there are no conflicts, the authors will be asked to electronically sing that "The authors declare that there are no conflicts of interest related to this article."</p> <p>It is the responsibility of the Corresponding Author to assure that each Co-author is aware of this Policy and to ensure that all required funding and disclosure information is included for all authors.</p> <p>Authors are obliged to submit a correction if a previously unrecognized conflict of interest is discovered after publication. In case of any misconduct, the paper will be rejected and will be deleted from the journal archive. All authors will become deprived of making any new submission.</p> <p><strong>Obligations of Section Editors and Reviewers</strong></p> <ul> <li class="show">Section Editors/Reviewers are responsible to report any conflicts of interest, and avoid cases in which such conflicts prevent an objective evaluation.</li> <li class="show">If a submission competes with the research of a section editor/reviewer such that the review process cannot be handled objectively in the section editor's opinion, she/he must decline responsibility for that particular case.</li> <li class="show">Article submissions from section editors are managed directly by the editor in chief and she/he ensures no details of the review process, other than those available to all authors, are accessible to the section editor.</li> </ul> <p>&nbsp;</p> <div id="custom-0"> <h3>Indexing</h3> <p>Google Scholar</p> <p>DOAJ</p> <p>Copernicus</p> <p>&nbsp;</p> </div> <div id="custom-1">&nbsp;</div> <div id="sponsors"> <h3>Sponsors</h3> <ul> <li class="show"><a href="http://iaumajlesi.ac.ir/">Islamic Azad University, Majlesi Branch</a></li> </ul> </div> en-US ashourian@gmail.com (Dr. Mohsen Ashouriann) mjem@majlesi.info (Behzad Aghababae) Wed, 01 Jun 2022 00:00:00 +0000 OJS 3.1.0.1 http://blogs.law.harvard.edu/tech/rss 60 The Effect of The Location of Constant Temperature Heat and Cooling Sources on The Natural Heat Transfer of A Chamber (Cooling Tunnel) http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/479 <p><strong>ABSTRACT:</strong></p> <p>The purpose of this paper is to investigate the effect of the location of heat sources on the heat transfer of natural displacement inside a rectangular chamber with fixed dimensions, the walls of which are well insulated.&nbsp; Inside the chamber, two high-temperature heat sources are located on the lower surface and a cooling source near the roof with a gentle slope. The cooling source temperature is considered to be zero degrees Celsius and the hot source temperature is assumed to be equal to 60 degrees Celsius. This geometry has been selected for the purpose of modeling long cooling tunnels in cooling-moving refrigerators. The cooling source is considered as an evaporator and the hot source is equivalent to pallets containing hot materials (which are intended for cooling). Based on this goal, the dimensions of the problem are assumed to be about one room, the values ​​of which are listed below. The parameters studied in this study are: distance of hot sources from each other, distance and angle of cooling source which is modeled for several different values ​​in Ensys Fluent software and the effect of changes in each parameter on the pattern of flow lines, temperature and heat transfer rate. The general result obtained for different modeling conditions of this problem shows that the total flow consists of six zones inside the chamber and each zone has its own characteristics in terms of flow that if this system is used in systems Combined, the overall efficiency of the system will be greatly increased.</p> <p>&nbsp;</p> Javad Haghighatpour ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/479 Wed, 01 Jun 2022 00:00:00 +0000 Socio-economic Nexus Investigation on the Future of the Iranian Gas industry http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/427 <p class="MJEE-Abstract">Iran is holding 33.5 billion cubic meters of gas, with an 18% share of oil and gas reservoirs worldwide. Productive hydrocarbon reservoirs are among the most important competitive advantages of Iran and a specific geographic location. In this study, the likely and credible future of Iran’s fossil energy (gas) on the horizon of 2035 is presented in the four-part state. Using the Maleki-Abbaszadeh-Norouzi (MAN) model, among the 300 scenarios, ten scenarios with the maximum adaptability were obtained, which is presented in two scenarios: The eternal blossoming and the Marshland. Moreover, projections show that Iranian gas production reaches 7.8 million barrels of oil equivalent per day in the eternal blossoming and 120 thousand barrels of oil equivalent per day in the Marshland scenario by 2035. This paper shows that the geopolitical status of the Middle East is highly effective in the gas industry.</p> Nima Norouzi ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/427 Wed, 01 Jun 2022 00:00:00 +0000 Short-Term Electric Load Forecasting in Distribution Network Using Neural network http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/481 <p>Artificial neural network (ANN) techniques have been recently suggested for short-term electric load forecasting by a large number of researchers, This paper presents an artificial neural network(ANN) approach to electric load forecasting. The ANN is used to learn the relationship among past, current and future temperatures and loads. In order to provide the forecasted load, the ANN interpolates among the load and temperature data in a training data set. The ANN load forecasting models are trained on historical data that obtained from a real substation in Mashhad of Iran. Final results indicate average errors of developed models and prove that these models can be applied to the prediction of load in real case.</p> Gholamreza Kamyab, Hossein Lotfi ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/481 Wed, 01 Jun 2022 00:00:00 +0000 Optimal Size of the Hybrid Systems Wind, Photovoltaic, Diesel Generator and Battery in Isolated Micro-Grid from the Network http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/482 <p>Energy crisis is one of the issues that is of great interest to today's societies. Optimizing the energy system in terms of resource diversity and the size of each unit can greatly improve the economic and technical efficiency of the feeding system. In this paper, a feasibility study and also economic optimization for a system independent of the network for the central regions of Iran is presented (Case Study of Varzaneh Region). HOMER software has been used for measurement as well as optimization tools. Renewable and non-renewable energy sources (fossil fuels), energy storage methods, and the ability to use them on a cost-efficient basis. Sensitivity analysis is performed for wind speed, solar radiation and fuel costs. An agricultural farm with an energy consumption of 10 kWh/d and a maximum load of 1 kW load is considered as an autonomous load<em>.</em></p> Morteza Khalilian-Goretani, Mohammadreza Gholamzadeh ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/482 Wed, 01 Jun 2022 00:00:00 +0000 New Hybrid Five-Level Space Vector Modulation Strategy to Minimize Current Distortion and Power Ripple for a DFIG Controlled by NSOSMC Control http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/483 <p>This article proposes a new modulation strategy that can minimize the stator current distortion and powers ripples for a doubly fed induction generator (DFIG) controlled by neuro-second order sliding mode controller (NSOSMC). The proposed five-level space vector modulation (5L-SVM) strategy is a hybrid technique which consists of 5L-SVM strategy and the intelligence technique (neural networks (NNs) and Fuzzy logic controller (FLC)). The former provides low current distortion and reduce powers ripples. On the other hand, the NSOSMC method with classical 5L-SVM strategy gives more powers ripples and harmonic distortion of stator current. For the proposed techniques, in the simulation region of neural space vector modulation (NSVM) technique, fuzzy space vector modulation (FSVM) is used to reduce the stator current distortion and powers ripples. Comparison of simulation results derived from a Matlab/Simulink software based controlled inverter is included. The work demonstrates that using the proposed hybrid 5L-SVM strategy, the three-phase current signals of the inverter can be reconstructed even under very low modulation index range while providing a low current harmonic distortion of the five-level inverter output.</p> Habib Benbouhenni ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/483 Wed, 01 Jun 2022 00:00:00 +0000 An Adaptive Hystersis Controller for Single-Phase Grid-Connected PV Central Inverters http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/484 <p class="MJEE-Abstract">An adaptive hysteresis current controller for single-phase single-stage photovoltaic central inverters is presented. The designed controller is able to eliminate harmonic distortion and to control switching frequency and to inject the current into power grid with good power quality. The simulation model of the system is developed in SIMULINK/MATLAB environment. The controller is found effective in obtaining the desired goal when the switching frequency is adequately high which leads to the synchronization of power grid voltage and inverter current and near to unity power factor.</p> Esmaeil Rokrok, Mahshid JavidSharifi ##submission.copyrightStatement## http://journals.iaumajlesi.ac.ir/em/index/index.php/em/article/view/484 Wed, 01 Jun 2022 00:00:00 +0000