International Journal of Sustainable and Green Energy

Volume 4, Issue 3, May 2015

  • High-Performance Multilevel Inverter Drive of Brushless DC Motor

    Yousif Ismail Al Mashhadany

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 1-7
    Received: 15 October 2014
    Accepted: 20 October 2014
    Published: 25 October 2014
    DOI: 10.11648/j.ijrse.s.2015040301.11
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: The brushless DC (BLDC) motor has numerous applications in high-power systems; it is simple in construction, is cheap, requires less maintenance, has higher efficiency, and has high power in the output unit. The BLDC motor is driven by an inverter. This paper presents design and simulation for a three-phase three-level inverter to drive the BLDC mo... Show More
  • Performance Enhancement of PV Array Based on Water Spraying Technique

    Salih Mohammed Salih, Osama Ibrahim Abd, Kaleid Waleed Abid

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 8-13
    Received: 19 October 2014
    Accepted: 07 November 2014
    Published: 11 November 2014
    DOI: 10.11648/j.ijrse.s.2015040301.12
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: This paper experimentally presents water spraying technique to improve photovoltaic (PV) array efficiency and enhance the net power saving. A forced-water spraying and cooling technique with constant flow rate of water on PV array surface is designed and implemented. The decreasing rate in the panel surface temperature has a direct proportional rel... Show More
  • High Performance for Real Portable Charger through Low-Power PV System

    Yousif I. Al-Mashhadany, Hussain A. Attia

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 14-18
    Received: 29 October 2014
    Accepted: 10 November 2014
    Published: 12 November 2014
    DOI: 10.11648/j.ijrse.s.2015040301.13
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: This paper proposes a novel design for a solar-powered charger for low-power devices. The level of the charging current is controllable and any residue power is saveable to a rechargeable 9V battery. Two power sources (AC and solar) are used, and two charging speeds are possible. Quick charging is 20% of the battery output current (almost 180mA/hr)... Show More
  • Experimental Analysis on Thermal Efficiency of Evacuated Tube Solar Collector by Using Nanofluids

    Hashim A. Hussain, Qusay Jawad, Khalid F. Sultan

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 19-28
    Received: 22 October 2014
    Accepted: 07 November 2014
    Published: 24 November 2014
    DOI: 10.11648/j.ijrse.s.2015040301.14
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: This research is to study performance of a evacuated tube solar collector when silver (Ag(30nm)) + distilled water and oxide titanium (ZrO2(50nm)) + distilled water nanofluids was taken as the working fluid. With higher thermal conductivity of the working fluid the solar collector performance could be enhanced compared with that of distilled water.... Show More
  • Simulation of Solar Off- Grid Photovoltaic System for Residential Unit

    Jasim Abdulateef

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 29-33
    Received: 27 October 2014
    Accepted: 04 December 2014
    Published: 19 December 2014
    DOI: 10.11648/j.ijrse.s.2015040301.15
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: The aim of this study is to design a solar off-grid PV system to supply the required electricity for a residential unit. A simulation model by MATLAB is used to size the PV system. The solar PV system is simulated with the case of maximum solar radiation on a sunny day. The results show that the average daily load requirement of the selected reside... Show More
  • Behaviour of Ferrocement SlabsContaining SBR Under Impact Loads

    Abdulkader Ismail A. Al-Hadithi, Khalil Ibrahim Aziz, Mohammed Tarrad Nawar Al-Dulaimi

    Issue: Volume 4, Issue 3-1, May 2015
    Pages: 34-50
    Received: 27 December 2014
    Accepted: 30 December 2014
    Published: 14 January 2015
    DOI: 10.11648/j.ijrse.s.2015040301.16
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    This article belongs to the Special Issue Engineering Solution for High Performance of Solar Energy System
    Abstract: The main aim of this work is to investigate the behavior of Ferrocement slabs under impact loading. A total of 48 Ferrocement slabs were constructed and tested, 36 slabs tested under low velocity impact and 12 slabs tested under high velocity impact, in addition,the main parameter considered in the present investigation was number of wire mesh laye... Show More