volume-15-Issue 2 (2019)

Latest Articles

Performance Study of Two Circuits Lorenz – Mutzner Vapour Compression Cycle

IJTEE, volume-15, Issue 2 (2019) , PP 151 - 156

Published: 04 Oct 2019

DOI: 10.5383/ijtee.15.02.003

by Abdul Hadi N. Khalifa, Johain J. Faraj, Mahmood H. Khaleel from Engineering Technical College Baghdad, Middle Tech. University, Iraq Engineering Technical College Kirkuk, Southern Tech. University, Iraq

Abstract: The operational parameters for a modified Lorenz – Mutzner refrigeration cycle working with mixed refrigerant were studied experimentally. A Lorenz read more...

Keywords: Lorenz – Mutzner cycle, Dual evaporators, Refrigerant mixture, Refrigeration cycle

Study on Adsorption Refrigeration System Using Activated Carbon-Ethanol as Working Pair

IJTEE, volume-15, Issue 2 (2019) , PP 143 - 150

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.010

by Made Astinaa, Ren Sokha, Prihadi S. Darmanto from Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia, Department of Industrial and Mechanical Engineering, Institute of Technology of Cambodia, Phnom Penh, Cambodia

Abstract: The adsorption refrigeration system is an alternative refrigeration system powered by thermal source so that it is possible to use waste heat and sola read more...

Keywords: Adsorption, Activated Carbon, Ethanol, Cooling Capacity, Coefficient of Performance.

Holism, Collective Intelligence, Climate Change and Sustainable Cities

IJTEE, volume-15, Issue 2 (2019) , PP 135 - 141

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.009

by Monika dos Santos from Department of Psychology: University of South Africa, PO Box 392, Pretoria 0004, South Africa, Department for Continuing Education: University of Oxford, Rewley House, 1 Wellington Square, Oxford, Oxfordshire OX12JA, United Kingdom

Abstract: As the Earth’s systems are under increasing unsustainable pressures, human security is clearly at stake. Cities are regarded to be increasingly impo read more...

Keywords: Climate Change, Cities, Holism, Adaptation, Mitigation, Collective Intelligence, Crowdsourcing, Technological Leapfrogging, Emerging Economies.

Performance Study of Photovoltaic-Water Electrolysis System for Hydrogen Production: A Case Study of Egypt

IJTEE, volume-15, Issue 2 (2019) , PP 129 - 133

Published: 27 Sep 2019

DOI: 10.5383/ijtee.13.02.008

by H.M. El-Sayed, Safie Elden Metwally, E.T. El Shenawy, A. Ramadan, N.M. Farag from Faculty of Science, Ain-Shams University, Cairo, Egypt, Renewable Energy Dept., Desert Research Center, Cairo, Egypt, Solar Energy Dept., National Research Center, Cairo, Egypt, Arab Academy of Science and Technology and Maritime, Cairo, Egypt

Abstract: Solar-hydrogen is expected to play an important role as an energy carrier of the future and is considered an ultimate solution for many energy and env read more...

Keywords: Hydrogen production, water electrolysis, solar energy

Yatta’s Medium Voltage Network Analysis and Enhancement

IJTEE, volume-15, Issue 2 (2019) , PP 123 - 128

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.007

by Sameer Khader, A.K. Daud, Alaa Abuqubaita, Aladdin Sultan from Palestine Polytechnic University, Power Electronics & Signals Processing Research Unit, Hebron, Palestine, Sultan Smart Technology Company, Jerusalem, Palestine

Abstract: This paper presents analysis and proposes solution scenarios for Yatta city (Y.C.) electrical network which experiences maximum demand exceeds the mai read more...

Keywords: Distribution Network, PV, ETAP, Electrical network, Power Transformers, Power Factor Correction.

Waste and Appendages Percentages of Stone Slabs Cutting Machine

IJTEE, volume-15, Issue 2 (2019) , PP 117 - 121

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.006

by Jawad Al-Haj from Palestinian Stone and Marble Center, Palestine Polytechnic University, PPU, 00972, Hebron, Palestine

Abstract: This paper aims at studying the stone wastage, appendages and defected stone percentages generated from cutting stone slabs into stone pieces with dif read more...

Keywords: Stone industry, stone slabs cutting machine, stone waste, appendages, defected stone.

Enhancement of Solar Water Disinfection using Nanotechnology

IJTEE, volume-15, Issue 2 (2019) , PP 111 - 116

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.005

by Mohammad Hamdan, Sonia Darabee from The University of Jordan, Department of Mechanical Engineering, Amman, Jordan

Abstract: The main aim of this work is to investigate the effect of adding Titanium and Aluminum Oxides nano-particles on solar disinfection process of contamin read more...

Keywords: Solar Water Disinfections, Nano-particles, contaminated water

Desalination by Freeze Crystallization: An Overview

IJTEE, volume-15, Issue 2 (2019) , PP 103 - 110

Published: 27 Sep 2019

DOI: 10.5383/ijtee.15.02.004

by Khadije El Kadi, Isam Janajreh from Mechanical and Materials Eng. Dept., Khalifa University of Science and Technology, Masdar Institute, Masdar City, P.O. Box 54224, Abu Dhabi, United Arab Emirates

Abstract: Desalination by freeze crystallization is a freezing-melting process in which water is crystallized to ice and separated from saline solution. This ar read more...

Keywords: freeze desalination, crystallization, crystal growth, binary phase diagram, CFD modelling

Analysis of Dissolved Oxygen Deficit in a Flowing Stream

IJTEE, volume-15, Issue 2 (2019) , PP 97 - 102

Published: 26 Sep 2019

DOI: 10.5383/ijtee.15.02.002

by Sunil J. Kulkarni from Department of Chemical Engineering, Datta Meghe College of Engineering, Airoli, Navi Mumbai, India, Pincode:400708

Abstract: The wastewater, domestic or industrial, is commonly disposed off in nearby water streams, rivers and sea. The wastewater, which has high biological ox read more...

Keywords: biological oxygen demand, oxygen deficit, critical deficit, critical time, saturation

Analysis of Alternative Cooling Options for a 1000 MWe Power Plant at Reduced Temperature Difference across Ultimate Heat Sink

IJTEE, volume-15, Issue 2 (2019) , PP 87 - 96

Published: 26 Sep 2019

DOI: 10.5383/ijtee.15.02.001

by Shahid Amin, Rashid Ali from Karachi Institute of Power Engineering (KINPOE), Karachi, Pakistan

Abstract: Process heated water from most existing nuclear and fossil fueled power plants is discharged directly to the ultimate heat sink by once through system read more...

Keywords: Heat sink, cooling tower, pond, evaporation, environment