Browsing Faculty of Engineering by Title
Now showing items 505-524 of 1129
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Identification of reaction zones in a commercial Sasol-Lurgi fixed bed dry bottom gasifier operating on North Dakota lignite
(Elsevier, 2011)The Sasol-Lurgi fixed bed dry bottom gasification technology has the biggest market share in the world with 101 gasifiers in operation. To be able to further improve the technology and also to optimise the operating plants, ... -
Identification of the reaction zones occurring in a commercial-scale Sasol-Lurgie FBDB gasifier
(Elsevier, 2008)Gasification behaviour is particle dependent, whilst gasifier (reactor) behaviour is an averaging process of individual responses of each particle. It was hypothesized, that if it were possible to extract and analyze ... -
Identifying opportunities for deterministic network coding in wireless mesh networks
(SAIEE Publishers, 2011)Recent advances in methods to improve network utilisation has lead to the introduction of Network Coding, a technique that can reduce local congestion in a network by combining information sent over the network. In this ... -
Impact of a radio-frequency identification system and information interchange on clearance processes for cargo at border posts
(AOSIS, 2015)Background: Improved operational efficiency is important to role players in cross-border logistics and trade corridors. Cargo owners and cargo forwarders have been particularly concerned about long delays in the processing ... -
Impact of aggregation interval on harmonic phase angle measurements
(IEEE, 2018)The aggregation principles of IEC 61000-4-30 is a well-known concept implemented in Power Quality (PQ) recorders. Only rms data is retained. Harmonic emission assessment requires the analysis of harmonic phasors. Continuous ... -
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 ... -
The impact of major environmental, social and economic forces on the field of industrial enigineering
(SAIIE, 2016)Every profession is bound to adapt in response to changes in the macro environments. Industrial Engineering is especially affected due to its broad application across various fields, i.e. manufacturing, customer service ... -
The impact of particle size and maceral segregation on char formation in a packed bed combustion unit
(ELSEVIER, 2013)Highveld parent coal was crushed into three size fractions, namely: 5 mm–75 mm, 5 mm–53 mm, and 5–37.5 mm. The crushed samples were subjected as feed coals to heating in a packed-bed reactor to investigate the influence ... -
Impact of plasma arc reforming deployment on economic performance of a commercial coal to liquids process
(Elsevier, 2017)Coal remains integral to the supply of energy in many parts of the world despite the associated negative effects on the environment. Plasma arc reforming has the potential of making coal to liquids processes cleaner by ... -
Impact of solubilising matrices for TiCl4 on the formation of TiO2 nanoparticles
(EARET, 2018)Several nanoparticles (Cu2O, SnO, ZnO) have been intensively studied and applied in wastewater treatment research, with TiO2 gaining popularity because of its stability, affordability, large band gap, recyclability and ... -
Impact of thermoelectric cooling modules on the efficiency of a single-phase asynchronous machine
(Energy Research Centre, University of Cape Town, 2014)In this paper, the authors present the impact of thermoelectric cooling modules (TECMs) on the efficiency of a single-phase asynchronous machine. TECMs are used to lower the stator winding temperature and core temperature ... -
Impact on power factor by small scale renewable energy generation
(IEEE, 2017)Domestic installations traditionally were believed to be resistive in nature and did not affect power factor much, if at all. With increasing affordability of air-conditioners, and replacement of electrical geysers with ... -
Implementation of a Reduced Order Model for rotating seal annular leakage flow inside a centrifugal pump
(Elsevier, 2023)Sustainability and net zero emissions targets drive the importance of turbomachinery design, optimisation, and efficient operation in modern geoenergy systems. To further enable integration of advanced large-scale ... -
Implementing a business improvement model based on integrated plant information
(Stellenbosch Univ, 2016)The World Energy Council [1, 2] defines numerous challenges in the global energy arena that put pressure on owners and /operators to operate run existing plant better and more efficiently. As such there is an increasing ... -
Implementing a DIKW model on a deep mine cooling system
(Elsevier, 2019)The South African mining industry has been experiencing increasing economic pressure. Deep mines also suffer from very hot workplaces, which leads to safety risks. These factors place stress on managers to reach their ... -
Implementing an optimisation model for turbine investment selection under fluctuating steam productions
(IEEE, 2016)Engineering plants typically have a variety of interlinked production chains, where process flows are dependent on upstream or downstream events. Raw material feeds may fluctuate over time, resulting in fluctuating off-gas ... -
Implication of plants and microbial metalloproteins in the bioremediation of polluted waters: a review
(Elsevier, 2014)Traditional approaches to municipal water monitoring barely includes procedures for toxic heavy metals testing. However, the presence of such contaminants in water sources is expected in South African surface and ground ... -
Implications of Sepedi/English code switching for ASR systems
(Pattern recognition association of South Africa (PRASA), 2013)Code switching (the process of switching from one language to another during a conversation) is a common phenomenon in multilingual environments. Where a minority and dominant language coincide, code switching from the ... -
Improved energy graph-based visualisation fault detection and isolation — A spectral theorem approach
(Elsevier, 2023)This paper illustrates how the energy graph-based visualisation (EGBV) fault detection and isolation (FDI) method may be interpreted in terms of the spectral theorem to gain insight into the sensitivity and robustness ... -
Improved event based method for harmonic impedance assessment
(IEEE, 2016)The quantification of harmonic emission requires an accurate model of the network harmonic impedances. A number of techniques have been proposed for the assessment of the network harmonic impedances to be practical and ...
