147 publication(s) trouvée(s)
Article scientifique
Solid fuel use in electrified low-income residential areas in South Africa: The case of KwaDela, Mpumalanga
Domestic solid fuel combustion remains a key contributor to indoor and ambient air pollution in low-income settlements. Understanding solid-fuel cost …
Article scientifique
Lesotho electricity demand profile from 2010 to 2030
This study undertook a 2010 to 2030 electricity demand profile for Lesotho, with 2010 used as the base year. The …
Article scientifique
South Africa’s integrated energy planning framework, 2015–2050
The Integrated Energy Plan (IEP) was designed to consider South Africa’s energy needs from 2015 to 2050, as a guide …
Article scientifique
The electrical energy impact of small-scale onsite generation: A case study of a 75 kWp grid-tied PV system
This study presents an analysis of a 75 kWp grid-tied solar photovoltaic (PV) system with a grid tie limiter to …
Article scientifique
The effect of different working fluids and internal geometries on the efficiency of evacuated tube heat pipe solar collectors
In this study, a heat pipe was modified with designed and manufactured inserts of specific profiles in order to investigate …
Article scientifique
Beyond climatic intervention: The social dimension of a biogas project in Sogwala village, Zimbabwe
There is now considerable interest to understand how local communities experiencing climatic risks can benefit from climate change responses. As …
Article scientifique
Offshore wind energy – South Africa’s untapped resource
In the context of the Anthropocene, the decoupling of carbon emissions from electricity generation is critical. South Africa has an …
Article scientifique
Design of an electrostatic precipitator for a novel bituminous coal-fired circulating fluidised bed combustion power plant in Namibia
Coal-fired power plants utilising fluidised bed technologies emit copious amounts of fly-ash, which is harmful to people owing to its …
Article scientifique
Intelligent techniques, harmonically coupled and SARIMA models in forecasting solar radiation data: A hybridization approach
The unsteady and intermittent feature (mainly due to atmospheric mechanisms and diurnal cycles) of solar energy resource is often a …
Article scientifique
The adoption of energy efficiency and a policy framework for Zimbabwe
Recent policy discussions on energy use in Zimbabwe sparked interest in the economic case for energy efficiency, suggesting the need …
Article scientifique
The development of a socio-economic model to promote women’s empowerment initiatives in the renewable energy sector of South Africa
This study investigates the main contributors that can positively influence the socio-economic empowerment of women in the renewable energy sector …
Article scientifique
An exploratory study of the South African concentrated solar power sector using the technological innovation systems framework
Wide-scale deployment of variable renewable energy (wind and solar photovoltaic) is constrained by its associated requirements for energy storage, the …
Article scientifique
Towards sustainable energy system options for improving energy access in Southern Africa
Access to modern energy services is one of the pre-requisites to improved livelihood, yet the poor, particularly in developing countries, …
Article scientifique
Small signal stability analysis of a four-machine system with placement of multi-terminal high voltage direct current link
Inter-area oscillation caused by weak interconnected lines or low generator inertia is a critical problem facing power systems. This study …
Article scientifique
An intelligent alternating current-optimal power flow for reduction of pollutant gases with incorporation of variable generation resources
Frequent escalations in fuel costs, environmental concerns, and the depletion of non-renewable fuel reserves have driven the power industry to …
Article scientifique
Reclamation of ultra-fine coal with scenedesmus microalgae and comprehensive combustion property of the Coalgae® composite
Combustion of South African discard ultra-fine coal (i.e. coal dust), charcoal, microalgae biomass, and composites of the three under air …
Article scientifique
Effects of current mismatch due to uneven soiling on the performance of multi-crystalline silicon module strings
Photovoltaic (PV) module operation is critical in PV systems for optimum generation of electrical power. Modules installed in the field …
Article scientifique
Passive cooling for thermal comfort in informal housing
Energy-poor households in Africa’s burgeoning urban informal settlements are especially likely to suffer from heatwaves because of thermally inefficient dwellings …
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 …