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EE Publishers
P O Box 458
Muldersdrift
1747
South Africa
Tel: 011 543 7000
Fax: 011 543 7025
admin@ee.co.za
www.ee.co.za |
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 Efficiency is the solution no matter the energy source
by Karel Steyn, SAEE president
I have been involved in the energy field for more than 20 years as an energy manager and an energy measurement and verification professional. I am therefore very conscious of the need for energy efficiency... (more)
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 SA and the energy challenge
by Mark Mfikoe, ECA(SA)
Eskom generates, transmits and distributes approximately 45% of the electricity used on the continent. It was established in 1923 and, today, it tries to convince its customers not to buy too much of its product... (more)
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 Maternity leave for men
by Shantonette Pillay, ECA(SA)
One of the grounds upon which we may not discriminate in terms of the Constitution is gender. We know about maternity leave for women, but what about maternity leave for men..? (more)
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South Africa on the cusp of an energy revolution
by Joanne Taylor, EE Publishers
A recent lecture on the democratisation of power generation and the outlook for utilities in future, delivered by Shaun Nel of The Eton Group, provided insight into the effect of end-user expectations, big data and apps on conventional utilities... (more)
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Department of Energy in quandary as SunEdison files for bankruptcy protection
by Pierre Potgieter and Chris Yelland, EE Publishers
After months of financial uncertainty, international solar giant SunEdison and some of its subsidiaries have filed for Chapter 11 bankruptcy protection in the USA, causing its share price to drop from a high of $33,45 in July 2015 to $0,34 this month... (more)
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A hydrogen economy on the horizon?
by Hans van de Groenendaal, EE Publishers
The large scale application of hydrogen fuel cells can ultimately replace combustion-type power generation, reduce greenhouse gasses and provide South Africa with sustainable energy supply. The first step of this vision was taken when Impala Refining Services launched a prototype hydrogen fuel cell forklift... (more)
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The integrating sphere: when is the data sincere?
by Pete Pomeroy and Stirling Marais, Cosine Developments
A discussion on sphere theory, practical measurements and pitfalls experienced while measuring lamps and luminaires in an integrating sphere. Due to economies of scale, the acquisition of an integrating sphere is no longer confined to larger corporations... (more)
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Case study: the use of LEDs in sport stadium lighting
by Mark Rice, Envirolight
In December 2015, the New York Yankees Stadium became the second major league baseball (MLB) stadium to convert to LED lighting, after the Seattle Mariners Safeco field. This heralds a breakthrough for LED lighting in an arena previously dominated by metal halide technology... (more)
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The multiple advantages of programmable LED drivers
by Henk Rotman, Philips Lighting Africa
An update on a 2013 Vector article on the characteristics of LED drivers and their influence on performance and lifetime. The article, "Driving the LED revolution" explains why drivers are needed for LEDs, their most important characteristics and how they influence the performance and lifetime of LEDs... (more)
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The advantages of the synchronous reluctance motor
by Freddie Gyllensten, Peter Isberg, Alessandro Castagnini, Giulio Secondo, Jouni Ikaheimo and Ari Tammi, ABB
In terms of efficiency and power density, synchronous reluctance motors represent a major step forward in sustainable electric motor technology. Although introduced over a century ago, electric motors continue to experience bursts of innovation and recent years have seen remarkable progress in electric motor efficiency improvements... (more)
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Ten practical tips for switchgear survival
by Hal Theobold, Schneider Electric
Ten practical tips to optimise the performance and therefore enhance the reliability of electrical switchgear equipment. According to studies published by the Hartford Steam Boiler Insurance Company and FM Global, electrical equipment failures account for millions of dollars in damage and lost business every year... (more)
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Induction heating applications in the metals industry
by Mike Rycroft, EE Publishers
Induction heating is used extensively in metallurgical processes, including smelting, heat treatment and others. High power electronics has made the range of equipment available to do whatever you like. This article takes a look at some of the latest developments... (more)
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Technical site visit to Rand Water Zuikerbosch Water Treatment Plant
by Mariana Jacobs, ICMEESA
On 15 April 2016, ICMEESA members paid a technical site visit to the Rand Water Zuikerbosch Water Treatment Plant. The Rand Water Zuikerbosch Water Treatment Plant (ZWTP) was awarded Blue Drop certification on quality assurance, from the Department of Water and Sanitation... (more)
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Troubles with a cooling tower
by EMP Evans, 1973
The addition of a 336 kW diesel motor and a larger air compressor to a mine power station posed some problems in terms of cooling larger volumes of circulating water. The power station of a chrome mine in the Bushveld housed three Allen diesel engines and a Sullivan two-stage air compressor... (more)
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Remote monitoring of bulk explosive storage facilities
by Terry Cousins, TLC Engineering Solutions
Ammonium nitrate is the cheapest and safest source of readily deliverable oxygen for blasting applications. The extensive use of ammonium nitrate in ammonium nitrate fuel oil and water-based commercial explosives has largely displaced the nitro-glycerine-based dynamites... (more)
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The safe use of alternative power supplies
by Pieter Coetzee, Explotac
End-users who use portable generators to interface with fixed electrical installations must adhere to the regulations of the OHS Act and SANS 10142-1. Many end-users cause illegal electrical installations when they resort to alternative power supplies during utility outages... (more)
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Project Pinboard
Compiled by Joanne Taylor, EE Publishers
- Regional mall for Alexandra
- City invites tenders for 80 tuk-tuk licences
- Baywest City to see big developments
- PRASA fleet renewal programme
- Progress on southern African shipyards contract... (more)
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Company, product, project & service news
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