Browsing by Subject "energy"
Now showing items 1-10 of 10
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Amaranth lignocellulose as feedstock for bioethanol production: effect of microwave-assisted alkaline pretreatment on reducing sugar yield
(ETA-Florence Renewable Energies, 2014)A new class of lignocellulose derived from amaranth (Amaranthus Cruentus) represents a potential feedstock for bioethanol production. The lignocellulose material can be pretreated to yield high monomeric sugar concentrations ... -
Analysing mine energy management considering utility demand
(North-West University (South Africa), 2019)This dissertation was completed using an article-based format. Article 1 has been submitted to the Journal of Energy in Southern Africa and Article 2 to Sustainable Energy Technologies and Assessments. In the past, the ... -
An analysis of energy disclosures in the mining sector
(North-West University (South Africa), 2019)The study analyses the extent of corporate social reporting in the South African mining industry through quantitative content analysis of the annual integrated reports. The mining sector sustainability in South Africa ... -
Analysis of South African Grade 10 learner's conceptual resources regarding the concept of energy in physics
(Taylor & Francis, 2011)More than a thousand Grade 10 Physical Science learners from four South African provinces participated in a study that probed their conceptions of energy. The purpose was to determine the learners’ conceptual resources, ... -
A comparative assessment of the economic benefits from shale gas extraction in the Karoo, South Africa
(UNISA, 2014)It has been said that the development of a shale gas industry could be a 'game changer' for South Africa. Proponents of shale gas tend to emphasise the benefits, whilst opponents emphasise the environmental costs. This ... -
Development of a controller for fuel cell and supercapacitor application
(CATSA (Catalysis Society of South Africa), 2014)The growing demand for energy in the world causes a lot of pressure to the environment and the resources used to supply the energy. To ensure a continuous, more reliable and environmentally friendly energy supply system ... -
Fiscal policy and revenue management in resource-rich African countries: A comparative study of Norway and Nigeria
(Taylor & Francis, 2014)This study assesses ways in which oil-rich countries can escape the ‘resource curse’ through the implementation of effective fiscal and revenue management policies. A comparative study of the policies of Norway and Nigeria ... -
Investigation into the generation of electricity via electrostatic induction
(North-West University (South Africa), 2020)The present research investigated electricity generation via the electrostatic induction charging of capacitors, for two primary reasons: • Mankind needs energy to live and survive; but • Present technologies have at least ... -
A techno-economic study of a pump storage hydropower system for ultra-deep level mines applied to Driefontein No. 9 Shaft
(North-West University, 2018)The energy required for mineral recovery is a major operational cost and strategic focus for the global mining sector. Power disruptions result in loss of production throughput and deceased profitability. Therefore, mines ... -
Ultrasonic assisted biodiesel production
(ETA-Florence Renewable Energies, 2014)One of the biggest hurdles in the production of biodiesel is the high production cost compared to petroleum-derived diesel. Even though the mechanical agitation utilised during biodiesel production is effective, it is ...