Hourly Air Temperature Modeling Based on Atmospheric Pressure, Global Solar Radiation and Relative Humidity Data

D. Bensahal; A. Yousfi

Volume 9, Issue 2 , June 2018, Pages 78-85

https://doi.org/10.5829/ijee.2018.09.02.01

Abstract
  This paper is focusing on hourly air temperature estimation model (MAT) using available meteorological measured data located in Laghouat (Algeria). The hourly air temperature defined by the present model can be calculated at any time of the night or the day period based on atmospheric pressure, global ...  Read More

Speciation of Cu, Zn and Cr in Excavated Fine Fraction of Waste at Two Landfills

Y. Jani; K. Pehme; A. Bucinskas; J. Burlakovs; W. Hogland

Volume 9, Issue 2 , June 2018, Pages 86-90

https://doi.org/10.5829/ijee.2018.09.02.02

Abstract
  Mining landfills and open dumpsites is associated with (40-70% by mass) fine fraction of particle sizes less than 20 or 10 mm. Soil and trace elements of considerable concentrations typically dominate the composition of this fraction. In the present paper, a modified three steps sequential extraction ...  Read More

Experimental Evaluation of the Effect of Inclination and Dust Deposition on Production Capacity of Photovoltaic Installations in West African Nations: Case Studyin Mali Drame

A. Sidiki; W. Li; M. Alhousseini

Volume 9, Issue 2 , June 2018, Pages 91-99

https://doi.org/10.5829/ijee.2018.09.02.03

Abstract
  The development of solar photovoltaic faces some difficulties in West African countries; such as: high cost of kW/h produced and long duration of return on investment. To that, there are some installation and operation aspects of Photovoltaic(PV) modules. In terms of installation, the incline plays a ...  Read More

Evaluation of Operative Factors on Conversion Efficiency of Biodiesel Production from Waste Cooking Oil

A. Hasheminezhad; S. J. Hashemi; R. Tabatabaie

Volume 9, Issue 2 , June 2018, Pages 100-104

https://doi.org/10.5829/ijee.2018.09.02.04

Abstract
  Today, the production of biodiesel from waste cooking oil due to its renewability, low cost of production and also low pollution become more popular. In this research, the factors affecting the production of biodiesel by trans-esterification method from waste cooking oil were evaluated. For this purpose, ...  Read More

A Theoretical Detailed Analysis for a Proposed 5kW PV Grid-Connected System Installed in Iraq Using PVsyst Tool

A. A. Abbood Al-Khazzar

Volume 9, Issue 2 , June 2018, Pages 105-113

https://doi.org/10.5829/ijee.2018.09.02.05

Abstract
  In this study, PVsyst simulation software is used to analyze a PV grid tied system in a typical primary school in Iraq. The proposed system is 5kW which is affordable and applicable from the cost and required area points respectively. The monthly averaged electrical load for a typical school is approximately ...  Read More

Thermodynamic Second Law Analysis of Hydromagnetic Gravity-Driven Two-step Exothermic Chemical Reactive Flow with Heat Absorption Along a Channel

S. O. Salawu; O. M. Okedoye

Volume 9, Issue 2 , June 2018, Pages 114-120

https://doi.org/10.5829/ijee.2018.09.02.06

Abstract
  This study examines the second law of thermodynamic gravity-driven viscous combustible fluid flow of two-step exothermic chemical reaction with heat absorption and convective cooling under bimolecular kinetic. The flow is acted upon by periodic changes in the axial pressure gradient and time along the ...  Read More

Effect of Mn Doping on Fe3O4 Nanoparticles Synthesized by Wet chemical Reduction Technique

T. J. Malek; S. H. Chaki; M. D. Chaudhary; J. P. Tailor; M. P. Deshpande

Volume 9, Issue 2 , June 2018, Pages 121-129

https://doi.org/10.5829/ijee.2018.09.02.07

Abstract
  The effect of Mn doping on Fe3O4 nanocrystalline spinel particles is studied. Two doping concentrations of 10 and 15% Mn were employed. The nanoparticles synthesis was carried out by wet chemical reduction technique. The energy dispersive analysis of X-ray confirmed the stoichiometry of the samples. ...  Read More

Theoretical analysis of a Low GWP Refrigerants as a Drop in substitute of R134a in a Domestic Refrigerator

M. Shaik Sk; K. Srinivas

Volume 9, Issue 2 , June 2018, Pages 130-136

https://doi.org/10.5829/ijee.2018.09.02.08

Abstract
  Now a days Fridges and Air-conditioners are mostly used in domestic environment. The CFCs have been almost ruled out since 1995 due to their huge impact on the ozone layer, due to the above problem HFC refrigerants are introduced but these are having a high GWP value, which causes environmental pollution. ...  Read More

Mechanical Engineering Design Theory Framework for Solar Desalination Processes: A Review and Meta-Analysis

G. Boligán Rojas; R. Lorenzo Ávila Rondon; A. Carolina Meléndez Gurrola

Volume 9, Issue 2 , June 2018, Pages 137-145

https://doi.org/10.5829/ijee.2018.09.02.09

Abstract
  The aim of the present study is to assess theoretical and practical analysis of scientific publications on solar desalination. This analysis is proposed within mechanical design theory framework. For this, inductive and statistical methods were used in analysis of the scientific publications of different ...  Read More

Optimization of Whey Treatment in Rotating Biological Contactor: Application of Taguchi Method

A. Ebrahimi; G. D. Najafpour; M. Anazadeh; M. Ghavami

Volume 9, Issue 2 , June 2018, Pages 146-152

https://doi.org/10.5829/ijee.2018.09.02.10

Abstract
  Industrial waste management is the main concern of sustainable environment, and the proper control and operation of wastewater treatment plants for efficient removal of pollutants are certainly important. In this study, the L16 orthogonal array of the Taguchi method was applied to determine the optimum ...  Read More