Archive for October, 2014

What does the future hold for South African manufacturing?

  A discussion panel on the future of manufacturing in South Africa heard that government has not pursued solutions sufficiently to enable the country to fulfill its manufacturing potential, resulting in the loss of over 300 000 jobs in the sector since the global financial crisis. Yet, at 11% of GDP, the sector still employs […]

5 MHz propagation research project shows unexpected results

  Earlier this year the Independent Communications Authority of South Africa (ICASA) awarded two licences to the South African Radio League (SARL) to carry out propagation research on the 5 MHz band in preparation for the agenda item to grant radio amateurs spectrum in the 5 MHz band at the World Radio Conference to be […]

Eskom and SALGA sign cooperative agreement

  Eskom and the South African Local Government Association (SALGA) have signed a memorandum of understanding (MoU) aimed at fostering an active partnership to ensure a cooperative and collaborative working relationship. The MoU was signed by Xolile George, the CEO of SALGA, and Ayanda Noah, Eskom’s group executive for distribution, on 30 October, the final […]

Designing high-pressure, high-volume pumps for harsh environments

  Pump designs fall mainly into two categories, centrifugal and reciprocating (piston) type, each with its own benefits and constraints. This article explores the design criteria and some of the applications. Information on the application and the fluids involved is key to matching the correct pump design to the application (see Fig. 1). Approaching a […]

Preventing system failure in solar PV systems

  It is vital for solar photovoltaic (PV) systems to accommodate the temperature fluctuations and environmental conditions to which they are typically exposed as these conditions often cause ongoing system failure. The difference between standard test conditions (STCs) and nominal operating cell temperature (NOCT) is of interest here as these values in PV modules determine […]

Economist to speak at the 9th SA energy efficiency conference

  Rob Jeffrey, the managing director and senior economist, at Econometrix will be addressing delegates at the 2014 Southern African Energy Efficiency Convention (SAEEC) on Wednesday 12 November 2014 on the keys to South Africa’s economic, social and political prosperity. As one of the speakers in the opening session, Jeffrey will address burning issues such as […]