The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The launch of ISO 50 001[1] in June 2011, combined with the growing international as well as local adoption of M&V (Measurement and Verification) based on the IPMVP[3] (International Performance Measurement and Verification Protocol) raises questions regarding the respective roles of these two standards. In South Africa, the SABS (South African Bureau of Standards) recently published SANS 50 010...
This paper sets out historical aspects and implementation constraints experienced in the Municipal Environment i.e. the City of Cape Town in the process of motivating and implementing energy efficiency intervention in the administration buildings used by the city in the process of service delivery to its citizens. A description of the programmes implemented is given and an indication of expected savings...
This paper sets out the findings of a pre-feasibility study on a renewable energy project, conducted by Promethium Carbon, at the Gold Fields Driefontein Mine. The aim is to identify and quantify possible biomass and waste sources at the Driefontein mine, and propose technologies for renewable energy generation. A first pass financial evaluation of the conceptual project design was also included....
The purpose of this paper is to present a practical setup which is used to determine the availability of power from a singular stationary photovoltaic panel for variable atmospheric conditions in the Vaal Triangle, located in southern Gauteng, South Africa. Atmospheric conditions in this paper are characterized by air pollution and cloud movements, both which impact negatively on the operation of...
The purpose of this paper is to provide you with some examples of how the application of automation albeit with computers and electricity can improve the lot of some users and contribute to carbon emission reduction. The first, computers has been accepted as being a genuine contributor although some minority groups have said that computer displays and cell phones can cause cancer or effect the brain...
Development of a National Energy Efficiency Strategy incorporates understanding the energy status quo, devising Visions & Goals, Potential Energy Savings calculation, Target setting, sector identification, identifying implementing instruments, etc. In all this, there are great benefits to be reaped from undertaking careful review of International best practice employed in development of Energy...
This paper highlights the implications of various gas coolers on the CO2 heat pump water heating system and how it can be applied in building for energy efficiency purpose. These highlights focus on different gas coolers that have been used and how effective they have been. However, the gas cooler is made possible due to the fact that the refrigerant is working above the condensation state. Carbon...
Buildings are responsible for over a third of global primary energy consumption and energy-related greenhouse gas emissions. With South Africa generating more than 90% of her electricity from coal, there exists vast opportunities to reduce energy demand through energy efficiency and augment energy supply through solar energy. In an effort to demonstrate energy efficiency and solar energy technologies...
Technical paper The energy saving potential in industry is enormous just in motor-driven applications alone. Variable speed drives and high efficient motors can help lower energy use typically by 20 to 50%, either by reducing power consumption and losses, improving productivity or through better management of equipment in many applications. ABB has devised a simple and methodical “motor and drive”...
Implementation of energy efficiency measures in buildings demonstrate significant reduction in energy usage, thus contributing to the reduction of CO2 emissions. Buildings are responsible for more than one third of total energy use and associated greenhouse gas emissions in society, both in developed and developing countries [1]. “Worldwide, 30%–40% of all primary energy is used in residential and...
Underground mining operations are some of the major energy consumers in South Africa. The intensity of energy usage is further linked to the depth at which mining takes place; the deeper the level at which ore is extracted, the higher the energy requirements become to perform actual mining and keep the environment within health and safety limits for workers.
The key discussion for the paper is the usage of System Computational Fluid Dynamic (SCFD) codes to solve the system problem that occurs when trying to give solutions for operational plants on efficiency improvements and their integration into dynamic networks when the system reacts on a time base constraint. The Industrial Energy Efficiency (IEE) Project emphasizes the need to look at system optimization...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.