International Journal of Energy and Power Engineering

Volume 5, Issue 4, August 2016

  • Developing of New Structure of Flat Plate Solar Water Heater and Method for Calculation and Design

    Zohrab Melikyan, Siranush Egnatosyan

    Issue: Volume 5, Issue 4, August 2016
    Pages: 141-147
    Received: 1 May 2016
    Accepted: 18 June 2016
    Published: 6 July 2016
    Abstract: Single pane glazed flat solar heaters found rather wide application for domestic hot water supply. However, the practice of use shows some discrepancy between estimated and observed data: in one case the temperature of hot water does not conform to the expected pattern, in other case doubts arise about correctness of their sizes, in some cases the ... Show More
  • Issues of Power Quality in Electrical Systems

    Daniel Ogheneovo Johnson, Kabiru Alani Hassan

    Issue: Volume 5, Issue 4, August 2016
    Pages: 148-154
    Received: 23 May 2016
    Accepted: 2 June 2016
    Published: 13 July 2016
    Abstract: It is not enough to have power supply. The characteristics of supply voltage at all-time are very essential for smooth operation and service-life of equipment. The voltage characteristics determine the quality of the power supply. The degree to which the supply voltage characteristics conform to the acceptable standard is referred to as Power Quali... Show More
  • Thermal Performance and Cost to Produce 90°C-Hot Water of Solar Thermal Collector and Hybrid Photovoltaic Thermal (PVT) Collector Systems

    Shigeki Hirasawa, Tsuyoshi Kawanami, Katsuaki Shirai

    Issue: Volume 5, Issue 4, August 2016
    Pages: 155-162
    Received: 19 September 2016
    Published: 19 September 2016
    Abstract: The effects of types of collector systems, operation-control methods, and locations in the world on thermal performance of solar thermal collector systems and cost to produce required amount of 90°C-hot water were studied through numerical simulations. Also performance of a hybrid photovoltaic thermal (PVT) collector system was examined. Calculatio... Show More