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Now showing items 21-30 of 245
Semi-Transparent Building Integrated Photovoltaic Solar Glazing: Investigations of Electrical and Optical Performances for Window Applications in Tropical Region
(Hindawi, 2019-12-17)
Integrating solar PV technology with semi-transparent windows permits multifunctional operation as electricity generation and allowing natural light to enter the building, hence overall energy efficiency improvement. The ...
Evaluation of the Oxidation Stability of Biodiesel Produced from Moringa oleifera Oil
(ACS Publications, 2011-10-19)
Biodiesel is considered as an alternative fuel to petroleum-based conventional diesel fuel. Dependent upon the raw material, biodiesel can contain more or less unsaturated fatty acids in its composition, which are susceptible ...
Review of the stability of biodiesel produced from less common vegetable oils of African origin
(South African Journal of Science, 2015-09-25)
The stability of biodiesel is dependent on storage conditions such as contact with ambient air and metals,
exposure to sunlight and high temperature conditions which accelerate oxidation reactions. In addition,
biodiesels ...
Oldoinyo Lengai Volcanic Ash for Removal of Hydrogen Sulfide and Ammonia from Biogas
(Scientific Research an Academic Publisher, 2018-04-13)
Oldoinyo Lengai mountain located in Northern Tanzania is the only active natrocarbonatite volcano with unusually alkali-rich natrocarbonatites which are not found elsewhere in the world. Volcanic ash formed earlier during ...
Influence of metal contaminants and antioxidant additives on storage stability of biodiesel produced from non-edible oils of Eastern Africa origin (Croton megalocarpus and Moringa oleifera oils)
(Elsevier Ltd., 2015-10-15)
The effect of metal contents and antioxidant additives on the storage stability of biodiesel produced from less common non-edible oils of Eastern Africa origin (Croton megalocarpus and Moringa oleifera) were evaluated and ...
An Analysis of Fuel Properties of Fatty Acid Methyl Ester from Manketti Seeds Oil
(Taylor & Francis Online, 2014-11-20)
The fatty acid methyl esters (FAME)produced from vegetable oils, animal fats, or waste oils known as biodiesel has attracted attention as possible replacement of fossil fuels. The fuel properties of biodiesel are similar ...
Mungongo Seeds Oil (Schinziophyton rautanenii) as a Potential Source of Bio-Diesel
(Scientific.Net, 2014-01)
Biodiesel from mungongo seeds oil (Schinziophyton rautanenii) was investigated in the present study to determine its suitability for use as substitute of petro diesel. The fuel properties of Mungongo Oil Methyl ester (MOME) ...
A review on opportunities for the development of heat pump drying systems in South Africa
(South African Journal of Science, 2014-05-28)
Recently, it has been discovered that heat pump drying is an efficient method of drying for drying industries. Heat pumps deliver more heat during the drying process than the work input to the compressor. Heat pump drying ...
Effect of Industrial Dust Deposition on Photovoltaic Module Performance: Experimental Measurements in the Tropical Region
(Hindawi, 2019-12-20)
Dust particle accumulation affects outdoor photovoltaic module transmittance of solar cell glazing and thus leads to significant degradation of conversion efficiency owing to lower irradiance reaching the surface. In this ...
Theoretical Design of Complex Molecule via Combination of Natural Lawsone and Synthetic Indoline D131 Dyes for Dye Sensitized Solar Cells Application
(Scientific Research Publishing Inc., 2018-10-31)
The dye sensitized solar cells (DSSCs) have been extensively studied due to
their low production cost and simple fabrication process. Dye co-sensitization
broadens the absorption spectrum of the sensitizer; thus enhances ...