International Journal of Energy and Power Engineering

Volume 2, Issue 2, April 2013

  • A Proposed Voltage Ride Through Compensators for Improving Power System Performance

    Hamed H. H. Aly, Mahdi M. El-Arini, M. T. Youssef

    Issue: Volume 2, Issue 2, April 2013
    Pages: 29-36
    Received: 11 March 2013
    Accepted:
    Published: 02 April 2013
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    Abstract: Power quality is one of the most common problems now and in the near future especially after the increas-ing penetration of renewable energy in the power system grid. The abnormal operating conditions (such as heavy load-ing conditions, frequently starting of large induction motors and transmission system faults…) in electric system utility are con... Show More
  • A Novel Numerical Scheme for a Scale-Invariant Form of Equation of Motion: Development of Solver and Application to Engineering Flow Problems

    Bo Wan, F.-K. Benra, H. J. Dohmen

    Issue: Volume 2, Issue 2, April 2013
    Pages: 37-45
    Received: 14 March 2013
    Accepted:
    Published: 02 April 2013
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    Abstract: The goal of the current paper is to describe an in-depth study of a numerical implementation of the modified equation of fluid motion for incompressible flow. The applications of the developed solver are discussed for both laminar and turbulent flow problems. The results are evaluated by comparing them with those obtained by other methods, includin... Show More
  • Transformer Inrush Current Mitigation Using Controlled Switching and Magnetic Flux Shunts

    S. Jamali Arand, M. Saeedi, S. Masoudi

    Issue: Volume 2, Issue 2, April 2013
    Pages: 46-53
    Received: 17 March 2013
    Accepted:
    Published: 02 April 2013
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    Abstract: The inrush current is a transient current that results from a sudden change in the exciting voltage across a transformer’s windings. It may cause inadvertent operation of the protective relay system and necessitate strengthening of the transformer’s mechanical structure. Many methods were reported in the literatures for reduction and mitigation of ... Show More
  • Optimization of the Production of Biodiesel Assisted by Ultrasonic and Microwave

    Ming-Chien Hsiao, Chin-Chiuan Lin

    Issue: Volume 2, Issue 2, April 2013
    Pages: 54-59
    Received: 08 April 2013
    Accepted:
    Published: 02 April 2013
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    Abstract: The transesterification reaction of present study was assisted by ultrasonic mixing and microwave irradiation. Central composite design (CCD) was employed to optimize the transesterification reaction conditions of biodiesel production from soybean oil. A mathematical model predicted that the theoretical conversion rate of soybean oil of 102.19% cou... Show More
  • Coupled Thermoelastic Analysis of Thick-Walled Pressurized Cylinders

    Begüm Kanlıkama, Ayşegül Abuşoğlu, İbrahim H. Güzelbey

    Issue: Volume 2, Issue 2, April 2013
    Pages: 60-68
    Received: 15 April 2013
    Accepted:
    Published: 02 April 2013
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    Abstract: In the present study, the coupled thermoelastic analysis was carried out for determining the temperature, radial displacement, and radial and circumferential stress distributions of a classical cylinder, and later a reactor pressure vessel exposed to an inner moderator pressure and thermal loads. For the solution, a critical region is analyzed to i... Show More
  • Numerical Investigation of Flow in Generation IV Pebble Bed Gas Cooled Core Reactors

    André A. C. Santos, Franklin C. Costa, Amir Z. Mesquita, Hugo C. Rezende

    Issue: Volume 2, Issue 2, April 2013
    Pages: 69-76
    Received: 04 May 2013
    Accepted:
    Published: 30 May 2013
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    Abstract: This article presents a numerical investigation of thermal-fluid dynamics processes through the gaps of the spherical fuel elements (fuel pebbles) in the core of a Pebble Bed Reactor (PBR), using Computational Fluid Dynamics (CFD). The PBR is one of the most promising projects of the six classes of Generation IV Very High Temperature Reactor (VHTR)... Show More
  • Comparative Investigation of Lean Effect of Stator Vane in Hydrogen-Fueled Combustion Turbine

    Ryouta Nakamura, Masaya Suzuki, Makoto Yamamoto

    Issue: Volume 2, Issue 2, April 2013
    Pages: 77-83
    Received: 19 April 2013
    Accepted:
    Published: 30 June 2013
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    Abstract: In these years, a lot of environmental problems like air pollution and exhaustion of fossil fuels have been discussed intensively. In our laboratory, a hydrogen-fueled propulsion system has been researched as an alternative to conventional jet engine systems. A hydrogen-fueled propulsion system is expected to have higher power, lighter weight and l... Show More
  • Stability Analysis of Power System with the Penetration of Photovoltaic Based Generation

    Mohammed Masum Siraj Khan, Md. Shamsul Arifin, Ariful Haque, Nahid-Al-Masood

    Issue: Volume 2, Issue 2, April 2013
    Pages: 84-89
    Received: 06 May 2013
    Accepted:
    Published: 10 June 2013
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    Abstract: As the recognition in renewable energy is increasing widely, the development of renewable energy can be major alternative energy resources in Bangladesh. This paper represents the impact of large-scale photovoltaic generation on Bangladesh power system stability. First, the model of PV based generator has been analyzed. Then system-loading margin i... Show More