Conference Papers: Recent submissions
Now showing items 21-40 of 799
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Linking export opportunities of products and services: the case of South Africa
(2012)Trade in services has been playing an increasingly important role in the economic growth and development of many countries. In addition it has been found that services trade is more crisis-resilient than goods trade, leading ... -
Export market selection methods and the identification of realistic export opportunities for South Africa using a decision support model
(2009)Market selection methods, of which a vast number exist, are a critical tool in firms’ and government’s policy, planning and budgeting processes. To this end, the primary aim of this paper is to determine the international ... -
Analysis of export and employment opportunities for the South African manufacturing industry
(2015)The South African government recognises the importance of promoting manufactured exports as a means of ensuring sustainable economic growth and job creation. However, export promotion organisations have limited resources ... -
Improving dynamic microgrid modelling through the use of synchronised field data
(IEEE, 2020)Simulation during the design and operation of microgrids should include dynamic phenomena that would be a result of the unpredictable variation in renewable generation and loading. Detailed modelling of different components ... -
Identification and comparison of export opportunities for South African products and services
(2014)The objective of this study was to provide guidelines for the export promotion of products and services in South Africa. The study outlined the background to the original decision support model (DSM) and the adaptations ... -
Competitive intelligence: construct exploration, validation and equivalence
(Emerald, 2008)Purpose Little empirical research has been conducted on competitive intelligence (CI). This paper aims to contribute to the quantitative strand of the CI literature by exploring and validating the theoretical constructs ... -
Ultrasonic assisted amaranth stem pretreatment for bio-ethanol production
(ETA-Florence Renewable Energies, 2015)An investigation was undertaken to determine the effect of ultrasound on enzymatic hydrolysis rate and enhanced bioethanol yields. Compositional analysis of the feedstock reveals that amaranth lignocellulose contains 36.35% ... -
In-situ biodiesel production from sunflower seeds using liquefaction
(ETA-Florence Renewable Energies, 2015)One of the most expensive steps in the bio-diesel value chain is the extraction of oil from the seeds. Simultaneous extraction and transesterification will lower the overall capital costs of the process while enhancing ... -
Catalytic hydroprocessing of ground cottonseeds in a cottonseed oil and 1-octane solvent to produce renewable diesel. (Slide presentation)
(ETA-Florence Renewable Energies, 2017) -
Bioethanol from cassava for a community project
(ETA-Florence Renewable Energies, 2010)Although the North-West Province of South Africa is renowned for its platinum industry, wildlife tourism and Casino resorts, its people are among the poorest in South Africa. The Thusanang community project concept was ... -
Production of ethanol from sweetstem sorghum and tropical sugar beet for a rural community
(ETA-Florence Renewable Energies, 2011)Rural communities in the North West Province of South Africa are among the poorest in the world with an average income of less than ZAR 8.75 (EU 0.875) per day. The South African government has committed itself to upliftment ... -
Conceptual design of an integrated micro-algal biomass-to-liquids process
(ETA-Florence Renewable Energies, 2011)A new integrated biomasstoliquids conceptual process was developed to produce 2.6 million litres of biodiesel per year from harvested microalgal biomass. Three unconventional harvesting methods, a thermochemical ... -
Conceptual cost of an integrated micro-algal biomass-to-liquids facility
(ETA-Florence Renewable Energies, 2011)An orderofmagnitude cost estimate was conducted on a new integrated biomasstoliquids (BtL) process that produces 2.6 million litres of biodiesel per year from microalgal biomass harvested from the Hartbeespoort Dam. ... -
Four novel methods for the harvesting of micro-algal biomass
(ETA-Florence Renewable Energies, 2011)The harvesting of micro-algal biomass is one of the most inefficient and costly steps in the whole biomass-to-liquids (BtL) value chain. Harvesting costs may contribute between 20–30% of the total cost of microalgal BtL ... -
Feasibility of cultivating Hartbeespoort Dam microalgae
(ETA-Florence Renewable Energies, 2011)Three cultivation experiments were conducted to grow microalgae in three consecutively scaled-up laboratory systems, which consisted of one, five and 135-litre bioreactors. The highest productivity achieved under optimum ... -
A comparison of biodiesel purification methods
(ETA-Florence Renewable Energies, 2013)The purification of biodiesel is of cardinal importance to ensure the final product meets industry standards. This final step in the production stage contributes a large portion of the cost attributed to biodiesel production. ... -
Thermochemical liquefaction of water hyacinth
(ETA-Florence Renewable Energies, 2013)The use of non-edible biomass should be investigated as alternatives for biofuel production. Aquatic weeds like water hyacinth (WH) are classified as third generation crops. WH in South Africa is an invasive species that ... -
Preparation of biochar from sunflower husks (Poster)
(ETA-Florence Renewable Energies, 2014)