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Now showing items 21-30 of 59
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 ...
Experimental results of an asynchronous machine with thermoelectric cooling modules
(2012)
It is estimated that globally around 40% of the electricity supplied to the industrial sector is consumed by electric motorised systems and for South Africa around 60% of the electricity supplied is consumed by asynchronous ...
Energy management by means of SMD model analysis for AMB systems with eccentricity
(IRET (Institute of Research in Engineering and Technology), 2013)
This paper provides the spring-mass-damper (SMD)
model analysis of a radial active magnetic bearing (AMB)
system that displays eccentricity. Energy management of AMB
systems can be done by means of a detailed SMD model ...
Energy management by means of PLC for a solar powered ultra-capacitor streetlight system
(IRET (Institute of Research in Engineering and Technology), 2013)
This paper presents the design of an energy
management programmable logic controller (PLC) control
program for a solar powered ultra-capacitor and battery
powered streetlight system. A PLC is used to control the flow ...
Partial discharge simulations used for the design of a non-intrusive cable condition monitoring technique
(David Publishing, 2013)
The purpose of this paper is to investigate the effect of PD (partial discharge) activity within medium voltage XLPE
(cross-linked polyethylene) cables. The effect of partial discharge was studied by means of a number of ...
A permanent magnet motor with two degrees of mechanical freedom
(EE Publishers, 2013)
The effectiveness and advantages of an energy-efficient
concrete mixer drive using a synchronous permanent
magnet motor to develop helical rotor movement
Fly ash resistivity profiling for South African coal fired power stations
(David Publishing, 2013)
Particulate emission is a major problem in industrial processes, mainly power plants that make use of coal as a primary
source of energy. Stringent emissions limits, set by government organisations requires industries to ...
Environmental impact of an industrial compressed air system with a solar powered compressor in South Africa
(Sage, 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. ...
Design and cost analysis of an automation system for swimming pools
(EE Publishers, 2012)
A low-cost automation system to minimise energy consumption
of circulation pumps and to regulate the chemical
composition of the water in swimming pools
Analysis of a 405 km transmission line with series compensation
(EE Publishers, 2012)
This paper presents an investigative case study and energy efficiency analysis of the 405 km, 420 kV transmission line between Insukamini
substation in Bulawayo in Zimbabwe and the Matimba thermal power station in South ...