89 publication(s) trouvée(s)
Article scientifique
A statistical exploration of interval-deficient wind speed data for application to wind power assessments
Gathering quality wind speed data can be time-consuming and expensive. The present study established whether interval-deficient wind speed data could …
Article scientifique
Holistic analysis of the effect on electricity cost in South Africa’s platinum mines when varying shift schedules according to time-of-use tariffs
In the past the cost of electricity was not a significant concern and was not common practice for mining companies …
Article scientifique
Potential for grid efficiency based on a combination of leakage reactances of transformers of a transmission interconnecting line: Application of an exhaustive search algorithm
Transmission interconnecting lines (called interconnectors in this study) are built to facilitate the exchange of active and reactive power between …
Article scientifique
Quality control of solar radiation data within the South African Weather Service solar radiometric network
This study reports on the performance results of the Baseline Surface Radiation Network (BSRN) quality control procedures applied to the …
Article scientifique
Recloser based energy exposure assessment of a distribution network
The optimised placement of reclosers on a distribution network is known to improve the reliability of a power system. Furthermore, …
Article scientifique
Wind power variability during the passage of cold fronts across South Africa
Wind is a naturally variable resource that fluctuates across timescales and, by the same token, the electricity generated by wind …
Article scientifique
Investigating diffuse irradiance variation under different cloud conditions in Durban, using k-means clustering
Diffuse irradiance is important for the operation of solar-powered devices such as photovoltaics, so it is important to analyse its …
Article scientifique
Pyrolytic topping of coal-algae composite under mild inert conditions
Co-processing of coal and biomass has been a focus of several research studies aimed at addressing the negative environmental attributes …
Article scientifique
Perspectives on integrated water resource management and its relevance in understanding the water-energy-climate change nexus in South Africa
It is increasingly acknowledged that the water-energy-climate change (WECC) nexus is one of the synergies that pose a significant risk …
Article scientifique
SAWEA's WindAc 2019 Conference Editorial
This academic peer-reviewed journal is an open access journal and publishes articles on technical, economic, policy, environmental and social aspects …
Article scientifique
Inferential based statistical indicators for the assessment of solar resource data
The drive to reduce fossil fuel dependency led to a surge in interest in renewable energy as a replacement fuel …
Article scientifique
A ray tracer model for analysis of solar concentrating systems
This study describes a 3D ray tracer model for analysis of a small-scale solar concentrating system where thermal heat is …
Article scientifique
Development of a large-area, low-cost solar water-heating system for South Africa with a high thermal energy collection capacity
A low-cost heat-exchanger system that can be used in high-pressure/low-pressure isolated solar water-heating systems in South Africa was developed for …
Article scientifique
Reactive power and harmonic compensation: A case study for the coal-mining industry
This study reports on a case study in Grootegeluk Mine: Exxaro Coal, Lephalale, South Africa, in terms of power factor …
Article scientifique
Influences of microalgae biomass on the thermal behaviour of waste coal fines
For this study, waste coal fines were treated with live microalgae slurry at varying biomass ratios to form coal-microalgae blends. …
Article scientifique
Developing a small photovoltaic power supply system with adaptive technologies for rural Africa: Design, cost and efficiency analyses
The objective of this study was to design a small-scale photovoltaic system to support electricity supply to a rural village …
Article scientifique
Energy flow estimation-control of two interconnected microgrids
Being dependent on weather, photovoltaic and wind system energy contributions fluctuate and are not continuously available, and sometimes not in …
Article scientifique
An overview of salient factors, relationships and values to support integrated energy-economic systems dynamic modeling
Integrated energy-economic modelling is needed to support the development of energy and climate policies. This study asserts that it is …
Article scientifique
The vulnerability of the South African electricity transmission network infrastructure to weather and climate: A review
Meteorological factors have an influence on global energy systems. This study reviewed some of the latest research contributions from other …
Article scientifique
Design and performance evaluation of wood-burning cookstoves for low-income households in South Africa
Many cookstove programmes implemented around the world aimed to reduce fuel consumption and pollutant emissions through the dissemination and adoption …
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