Journal of Energy and Natural Resources

Volume 3, Issue 5, October 2014

  • Effect of the Shape Surface of Absorber Plate on Performance of Built-in-Storage Solar Water Heater

    Omer Khalil Ahmad, Ahmed Hassan Ahmed, Obiad Majeed Ali

    Issue: Volume 3, Issue 5, October 2014
    Pages: 58-65
    Received: 6 October 2014
    Accepted: 16 October 2014
    Published: 30 October 2014
    Abstract: An experimental and numerical study was carried out on a storage solar collectors to verify its suitability for domestic use. These storage collectors can be used as storage water tanks to replace the ordinary cubical or cylindrical tank commonly used in Iraqi houses. The paper includes study the effect of the shape surface of absorber plate on per... Show More
  • Volume Models for Single Trees in Tropical Rainforests in Tanzania

    Abel Malyango Masota, Eliakimu Zahabu, Rogers Ernest Malimbwi, Ole Martin Bollandsås, Tron Haakon Eid

    Issue: Volume 3, Issue 5, October 2014
    Pages: 66-76
    Received: 15 October 2014
    Accepted: 31 October 2014
    Published: 10 November 2014
    Abstract: The present study was the first to develop total tree, stem and branches volume models for rainforests in south-eastern Africa based on destructive sampling. The number of sample trees was 60 and diameter at breast height (dbh) and total tree height (h) ranged from 6 to 117 cm and from 6.4 m to 50 m, respectively. Large parts of the total volume an... Show More