This study explores ways to determine the energy efficiency of a pyrometallurgical ore reduction plant and measures to improve it. The feasibility of building a commercial plant - that is more energy efficient, has a low energy cost, and can operate independently and cost-effectively of external electricity supply - is determined. The need for energy efficiency is expanded to three questions: how should the energy efficiency of the plant be determined, what is the efficiency of the existing plant and to what level it can be improved. Literature and other relevant sources were consulted. Twenty potential energy conservation measures were identified through a literature study. A multi-criteria decision-making approach resulted in the selection of ten measures for conceptual implementation. The measures ranged from high-efficiency motors, solar power, heat recovery with thermal oil and various heat engines, to pressure recovery with turbo-generators. A case study approach was followed with the energy efficiency of an existing prototype plant the subject being studied. The energy usage of the existing plant and feasible measures to improve the performance were empirically observed. The impact of these measures was modelled and the results of the conceptual implementation determined. Two measures that were implemented during the study are also described and the results reported. The study found that the energy efficiency of the plant could be determined by the ratio of product exergy to input energy. By incorporating a number of energy conservation measures conceptually the internal efficiency of the prototype plant was conceptually improved from the current 17% to 22% and as a result externally supplied electricity reduced by 47%. The results were extrapolated to a future commercial plant and energy efficiencies of 26% on-grid and 21% off-grid predicted. This study suggests that a significant improvement in energy efficiency and energy cost can be achieved by integrating appropriate energy conservation measures into the existing and future plants. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

This study explores ways to determine the energy efficiency of a pyrometallurgical ore reduction plant and measures to improve it. The feasibility of building a commercial plant - that is more energy efficient, has a low energy cost, and can operate independently and cost-effectively of external electricity supply - is determined. The need for energy efficiency is expanded to three questions: how should the energy efficiency of the plant be determined, what is the efficiency of the existing plant and to what level it can be improved. Literature and other relevant sources were consulted. Twenty potential energy conservation measures were identified through a literature study. A multi-criteria decision-making approach resulted in the selection of ten measures for conceptual implementation. The measures ranged from high-efficiency motors, solar power, heat recovery with thermal oil and various heat engines, to pressure recovery with turbo-generators. A case study approach was followed with the energy efficiency of an existing prototype plant the subject being studied. The energy usage of the existing plant and feasible measures to improve the performance were empirically observed. The impact of these measures was modelled and the results of the conceptual implementation determined. Two measures that were implemented during the study are also described and the results reported. The study found that the energy efficiency of the plant could be determined by the ratio of product exergy to input energy. By incorporating a number of energy conservation measures conceptually the internal efficiency of the prototype plant was conceptually improved from the current 17% to 22% and as a result externally supplied electricity reduced by 47%. The results were extrapolated to a future commercial plant and energy efficiencies of 26% on-grid and 21% off-grid predicted. This study suggests that a significant improvement in energy efficiency and energy cost can be achieved by integrating appropriate energy conservation measures into the existing and future plants. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

The aim of this study is to provide a theoretical background on the knowledge management principles required in determining the current state of knowledge management within the Pyrometallurgical industry. Emphasis is placed on identifying initiatives that is required for embedding tacit knowledge within an organisation. Knowledge is what people know and there is no knowledge without someone knowing it. Knowledge can be present in ideas, judgement, relationships and concepts. Unlike data and information, knowledge is never static but is continually shaped inside peoples' heads through experience, reasoning and the inflow of new stimuli. Tacit knowledge is the information about work processes and products that individuals hold above and beyond what organisations has documented. It is the "tricks of the trade" that promote smooth organisational functioning, overall know-how, and competitive advantage. In order to ensure that an organisation maintains its competitive advantage, special focus must be placed on tacit knowledge management. The state of knowledge management within the Pyrometallurgical industry in South Africa was assessed in the use of survey questionnaires. The Pyrometallurgical industry has still got a long way to go in order to ensure that the tacit knowledge is embedded within their organisations. Key areas of concerns are the lack of experienced mentors as well as enough resources in order to foster tacit knowledge transfer. A practical tacit knowledge management framework is proposed in order to assist management in looking after this critical asset of their organisation. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2009.

The aim of this study is to provide a theoretical background on the knowledge management principles required in determining the current state of knowledge management within the Pyrometallurgical industry. Emphasis is placed on identifying initiatives that is required for embedding tacit knowledge within an organisation. Knowledge is what people know and there is no knowledge without someone knowing it. Knowledge can be present in ideas, judgement, relationships and concepts. Unlike data and information, knowledge is never static but is continually shaped inside peoples' heads through experience, reasoning and the inflow of new stimuli. Tacit knowledge is the information about work processes and products that individuals hold above and beyond what organisations has documented. It is the "tricks of the trade" that promote smooth organisational functioning, overall know-how, and competitive advantage. In order to ensure that an organisation maintains its competitive advantage, special focus must be placed on tacit knowledge management. The state of knowledge management within the Pyrometallurgical industry in South Africa was assessed in the use of survey questionnaires. The Pyrometallurgical industry has still got a long way to go in order to ensure that the tacit knowledge is embedded within their organisations. Key areas of concerns are the lack of experienced mentors as well as enough resources in order to foster tacit knowledge transfer. A practical tacit knowledge management framework is proposed in order to assist management in looking after this critical asset of their organisation. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2009.