volume-10


Latest Articles

Mixed Convection in Superposed Nanofluid and Porous Layers Inside Lid-Driven Square Cavity

IJTEE, volume-10 , Issue 2 (2015), PP 93 - 104

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.002

by Ahlam A. Hassan, Muneer A. Ismael from Mechanical Engineering Department, Engineering College, University of Basrah, Basrah61004, Iraq.

Abstract: Mixed convection in a lid-driven composite square cavity is studied numerically. The cavity is composed of two layers; a Cu–water nanofluid layer su read more...

Keywords: Composite cavity, lid-driven, porous medium, nanofluid.


Theory and Design of Counter Flow Shell-and-Coil Heat Exchanger for CO2Based Solar Water Heater

IJTEE, volume-10 , Issue 2 (2015), PP 87 - 93

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.001

by N. Abasa, N. Khan from Department of Electrical Engineering, COMSATS Institute of Information Technology, Islamabad, Pakistan, Department of Electrical Engineering, University of Gujrat, Hafiz Hayat Campus, Gujrat, Pakistan

Abstract: A shell type helical tube countercurrent flow heat exchanger was designed, fabricated and tested using CO2 refrigerant material. Helical copper tube w read more...

Keywords: Heat exchanger, Shell & Helical Tube, Counter flow, Countercurrent.


Performance Investigation of Direct Evaporative Cooling in Major Cities of Iraq

IJTEE, volume-10 , Issue 2 (2015), PP 177 - 183

Published: 12 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.013

by Abdulrahman Th. Mohammad from Baqubah Technical Institute, Middle Technical University, Baghdad, Iraq

Abstract: The cities of Baghdad, Basrah, and Mousl are the major cities in the middle, southern and northern parts of Iraq, respectively. In this paper, TRNSYS read more...

Keywords: Evaporative cooling, cooling capacity, TRNSYS


Parametric Quantification of Low GWP Refrigerant for Thermosyphon Driven Solar Water Heating System

IJTEE, volume-10 , Issue 2 (2015), PP 167 - 176

Published: 12 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.012

by N.Abasa,b, N.Khana from Department of Electrical Engineering, COMSATS Institute of Information Technology, Islamabad, Pakistan, Department of Electrical Engineering, University of Gujrat, Hafiz Hayat Campus, Gujrat, Pakistan

Abstract: Modern lifestyle, industrialization and economy thrive on energy which is getting expensive overtime. Thermosyphon based systems are getting attractio read more...

Keywords: Thermosyphon, natural refrigerants, thermodynamics, supercritical fluid.


Effect of Thermal Pretreatment on the Solubilization of Organic Matters in a Mixture of Primary and Waste Activated Sludge

IJTEE, volume-10 , Issue 2 (2015), PP 161 - 166

Published: 10 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.011

by A. M. Aboulfotoh, E. H. El Gohary, O. D. El Monayeri from Environmental engineering department, Faculty of engineering, Zagazig university, Egypt, Arab Academy for Science, Technology and Marine Transportation, Egypt

Abstract: The increased demand for advanced techniques in anaerobic digestion over the last few years has led to the employment of various pre-treatment methods read more...

Keywords: Anaerobic digestion, CODs, solubilization reaction kinetics, thermal pretreatment and VFAs.


Heat Disposal through Horizontal Submerged Jets

IJTEE, volume-10 , Issue 2 (2015), PP 155 - 160

Published: 09 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.010

by Mohammed A. Azim from Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

Abstract: The governing equations for submerged buoyant jet are solved numerically using the standard k   model for turbulence closure. Comparison shows t read more...

Keywords: Heat Disposal, Submerged Jet, Turbulent, Seasonal Condition


Exergy Analysis of Modified Solar Still

IJTEE, volume-10 , Issue 2 (2015), PP 149 - 154

Published: 09 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.009

by Abdul Hadi N. Khalifa from Engineering Technical College, Middle Technical University, Baghdad, Iraq

Abstract: A new design of solar still consist of flat plate solar collector, heat exchanger and cooling tower, was built and tested under Iraq weather at March. read more...

Keywords: Solar still, exergy analysis, solar collector, cooling tower


Control of DFIG on Variable Wind Speed

IJTEE, volume-10 , Issue 2 (2015), PP 143 - 148

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.008

by N. Khan, N. Abas, T. Bukhari from Department of Electrical Engineering, COMSATS Institute of Information Technology, Islamabad, Pakistan, Department of Electrical Engineering, University of Gujrat, Hafiz Hayat Campus, Gujrat, Pakistan

Abstract: Doubly Fed Induction Generator (DFIG) is one of the most reliable wind generator. Major problem in wind power generation is to generate constant frequ read more...

Keywords: DFIG, VFD, constant frequency, wind power generation, pitch control.


Performance Study of a Biogas Pilot Plant Using Domestic Wastes from Benin Metropolis

IJTEE, volume-10 , Issue 2 (2015), PP 135 - 141

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.007

by P.O. Ebunilo, S.A. Aliu and E. K. Orhorhoro from Mechanical Engineering Department, University of Benin, P.M.B 1154, Benin City 300001, Nigeria

Abstract: Increasing demand for energy and high waste generation in Nigeria necessitates the adoption of technologies that promote renewable energy and wastes c read more...

Keywords: Pilot plant, anaerobic digestion, Domestic wastes, Benin metropolis


A Test Device for Optimize PMU-Based Islanding Detection Technology

IJTEE, volume-10 , Issue 2 (2015), PP 129 - 134

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.006

by Yuchen Zeng, Furong Liu, Xianbing Chen, Wei Liu from College of Automation, Wuhan University of Technology, Wuhan, P.R. China, 430070

Abstract: Islanding detection is a necessary function for grid connected distributed generators. Usually, islanding detection methods can be classified as two c read more...

Keywords: Synchronous measurement, islanding detection, photovoltaic power station


A Standard Process for Sustainable Design

IJTEE, volume-10 , Issue 2 (2015), PP 121 - 128

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.04.0x.00xx

by Francisco J. Farias Stipo from Kay Elliott Architects, Torquay, Devon, TQ1 2JP, United Kingdom

Abstract: This exploratory research examined the degree of adoption and impact of the concepts of Building Information Model (BIM), Integrated Project Delivery read more...

Keywords: sustainability, Building Information Modelling, building energy simulation, design processes, integrated design.


Financial Risk and market Effects for the Congestion Costs of the electricity System in Italy

IJTEE, volume-10 , Issue 2 (2015), PP 113 - 120

Published: 08 Aug 2015

DOI: http://doi.org/10.5383/ijtee.10.02.004

by Enrico Maria Mosconi, Stefano Poponi, Cecilia Silvestri from Department of Economics and Management, University La Tuscia, Via del Paradiso, 47, 01100, Viterbo – Italy

Abstract: The physical and structural constraints of the electricity grid economically and financially affect the operators imposing on them a set of measures d read more...

Keywords: Power congestions, Electricity market, Congestion Risk