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Now showing items 11-20 of 57
Improving the efficiency of single phase asynchronous machines
(EE Publishers, 2014)
Globally around 40% of the electricity supplied to the industrial and mining sectors is consumed by electric motorised systems and for South Africa around 60% of the electricity supplied to these sectors is consumed by ...
Energy management system for a residential grid-tied micro-grid
(IEEE, 2015)
With the national power grid under
tremendous pressure, there are enormous pressure exerted
on residential electricity consumers to cut-back on
electricity consumption to ensure a reliable supply. This has
led to ...
Environmental impact of an industrial compressed air system for solar power in South Africa
(Multi-Science Publishing, 2012)
Almost 14% of the electricity generated by the national energy supplier (Eskom) in South Africa is sold directly to the mining sector and almost 20% is utilized directly by the compressed air systems of the mining sector. ...
Factors influencing the performance and efficiency of solar water pumping systems: a review
(Academic journals, 2012)
The world is having an energy crisis and currently there is a strong drive towards renewable energy. A renewable energy option is solar energy, where by means of photovoltaic (PV) modules electrical energy can be produced. ...
Efficiency and cost analysis of a designed in-line water heating system compared to a conventional water heating system in South Africa
(ERC (Energy Research Centre), 2012)
In this paper, the authors compares the efficiency and cost of a designed in-line water heating system with a conventional water heating system (geyser) in South Africa. The paper provides an overview on water heating ...
Impact of frequency switching on the efficiency of a fully suspended active magnetic bearing system
(Academic journals, 2012)
Due to the rising energy (and electricity) cost it is essential that an active magnetic bearing (AMB) system is operated as efficiently as possible. Frequency switching caused by an external source can cause an AMB system ...
Using dynamic model of PEM-Fuel Cell supplying the load by the Z-source inverter with a novel control strategy
(Staff Research Council of Yeshwantrao Chavan College of Engineering (YCCE) , Nagpur, India, 2014)
A new dynamic model is developed in this paper to connect PEM Fuel Cell (PEMFC) to a Z-source inverter (ZSI). This
model is used to analyse the behaviour of a fuel cell by providing a polarization curve. A controller is ...
Prototype monitoring system for power line inspection by means of a PandaBoard
(David Publishing, 2014)
The national energy supplier (Eskom in South Africa) supplies electricity through thousands-of-kilometers of overhead
power lines. The current methods of inspection of these overhead power lines are infrequent and expensive. ...
Energy savings in concrete production
(Crown Publications, 2014)
T
he rapid growth of the cement and concrete industry has created
the need for concrete products such as concrete pipes, culverts,
manholes, slabs, piles, etc. Since the role of electric machines
in the concrete industry ...
A review on switched reluctance machines for electric vehicle
(IEEE, 2016)
Nowadays, switched reluctance machines (SRM) are gaining interest in the scientific community due to the advantages they offer. The SRM offers an overall efficiency similar to an induction motor of the same rating, since ...