More Secure Iranian Energy System: A Markal Based Energy Security Model for Iranian Energy Demand-side

A. Behzadi Forough; N. Norouzi; M. Fani

Volume 12, Issue 2 , June 2021, Pages 100-108

  As the world’s seventeenth-largest economy and a significant exporter of fossil fuels, the choice of future energy paths and policies that Iran will pursue over the next three decades will have a considerable impact on global energy security as a whole. Especially the eastern region. This article ...  Read More

A Novel Direct Active and Reactive Power Control Method Using Fuzzy Super Twisting Algorithms and Modified Space Vector Modulation Technique for an Asynchronous Generator-based Dual-rotor Wind Powers

H. Benbouhenni

Volume 12, Issue 2 , June 2021, Pages 109-117

  This work presents a novel direct active and reactive powers command (DARPC) scheme based on fuzzy super twisting algorithms (FSTAs) of an asynchronous generator (ASG) integrated into dual-rotor wind power (DRWP) systems. The DRWP has two sets of blades. So it is more efficient for collecting power from ...  Read More

Modeling of Maximum Solar Power Tracking by Genetic Algorithm Method

M. Jamiati

Volume 12, Issue 2 , June 2021, Pages 118-124

  This paper presents a model of solar cell by using MATLAB SIMULINK. P-V, I-V and P-I characteristics were studied for various values of irradiance at constant temperature. Genetic Algorithm (GA) was used for maximum power point tracking (MPPT) of Photovoltaic (PV) system using the direct control method. ...  Read More

Evaluation of the Electrical Characteristics of Recycled Iron Reinforced Polystyrene Composites

S. A. Abdulkareem; J. O. Ighalo; A. G. Adeniyi

Volume 12, Issue 2 , June 2021, Pages 125-130

  The prospective reuse of iron fillings from the milling machine and polystyrene in the solid waste streams in the production of plastic composites were considered in this study. The preparation, electrical properties, density, void fraction and particle distributions of the solvated polystyrene filled ...  Read More

Evaluation of Heavy Metals of Lead, Nickel, Cadmium, Vanadium and Some Chemical Parameters in Surface Soils of the City of Khorramabad

M. Karimizadeh; K. Payandeh

Volume 12, Issue 2 , June 2021, Pages 131-142

  This study was conducted in 2017 with the aim of determining the distribution of heavy metals lead, nickel, cadmium, vanadium and the parameters of acidity, electrical conductivity and organic matter in the surface soils of the city of Khorramabad. Sampling was performed monthly from 12 stations and ...  Read More

Enhanced Adsorption of Aromatic Hydrocarbon-contaminated Aquifer Using Granular Nano Zero-valent Iron

D. Yousefi Kebria; S. Mokhtarpour

Volume 12, Issue 2 , June 2021, Pages 143-148

  Aromatic hydrocarbons are toxic pollutants that enter into environment through various industries. These pollutants are carcinogenic and cause genetic mutations. There are various solutions, including biological methods, extraction, and electrocoagulation. This research aims to synthesize the nano zero-valent ...  Read More

Investigation Experimental and Finite Element Method of Mechanical Properties of Hot Forging on Ti6Al4V Alloy

H. Tagimalek; M. R. Maraki; M. Mahmoodi; P. Mohammad Zadeh

Volume 12, Issue 2 , June 2021, Pages 149-154

  Forging is one of the oldest and the most important processes of metal forming. The process occurs due to the waxy deformation of metal. In the forging process, the die walls control the material flow and the mechanical properties of the workpiece are significantly improved. Today's world industries, ...  Read More

Analysis of the Wind Resources in Saharan Atlas of Algeria: Adrar Region as a Case Study

M. Benmedjahed; R. Maouedj; S. Mouhadjer; Y. Menni; H. Ameur; A. Dahbi; D. Saba; T. Touahri

Volume 12, Issue 2 , June 2021, Pages 155-160

  An objective analysis of the wind atlas map of the region of Adrar (Algeria) at a height of 10 meters above ground is essential, in order to classify these velocities according to the Pacific Northwest Laboratory (PNL) classification, and then to develop the separation velocity map. The present work ...  Read More

Performance Augmentation of Solar Air Heater for Space Heating Using a Flexible Flapping Guide Winglet

S. A. Gandjalikhan Nassab; M. Moein Addini

Volume 12, Issue 2 , June 2021, Pages 161-172

  A new idea is presented in this paper for improving the performance of solar air heater (SAH) designed for space heating by employing a thin flexible guide winglet. In addition to the role of winglet in pushing the convective airflow toward the heated surface, it behaves as a vortex generator (VG) due ...  Read More

Modelling Net Radiative Measurement of Meteorological Parameters Using MERRA-2 Data in Sub-Sahara African Town

F. O. Aweda; S. Adebayo; T. K. Samson; I. A. Ojedokun

Volume 12, Issue 2 , June 2021, Pages 173-180

  In this study, the net radiation was estimated using a simple straightforward expression proposed by different researchers, which is based on the principle of the Fourier Series Technique. The estimation of net radiation of Iwo ( ) from the data collected from the archive of HelioClim satellite MERRA- ...  Read More