Browsing Faculty of Engineering by Title
Now showing items 675-694 of 1122
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Mineralogy of furnace deposits produced by South African coals during pulverized-fuel combustion tests
(ACS, 2015)Pilot-scale combustion tests were carried out on coals with low (13.5%) and high (39.6%) ash percentages from the Highveld Coalfield of South Africa, using the ALS-ACIRL 100–200 kW Combustion Test Facility. The mineral ... -
Minimum phase finite impulse response filter design
(Wiley, 2022)The design of minimum phase finite impulse response (FIR) filters is considered. The study demonstrates that the residual errors achieved by current state‐of‐the‐art design methods are nowhere near the smallest error ... -
Mobile User Experience for Voice Services: A Theoretical Framework
(Proc. of the 3rd Int. Conf. on Mobile Communication for Development, 2012)The purpose of this paper is to provide a “Mobile User Experience Framework for Voice services.” The rapid spread of mobile cellular technology within Africa has made it a prime vehicle for accessing services and content. ... -
Mobility potential of metals in acid mine drainage occurring in the Highveld area of Mpumalanga Province in South Africa: implication of sediments and efflorescent crusts
(Elsevier, 2017)Prediction of the dispersion of pollutants from the acid mine drainage is an important step toward the development of remediation strategy and mitigation of environmental impact. Geochemical studies are often carried out ... -
Model predictive control of an active magnetic bearing suspended flywheel energy
(SAIEE, 2015)Flywheel Energy Storage (FES) is rapidly becoming an attractive enabling technology in power systems requiring energy storage. This is mainly due to the rapid advances made in Active Magnetic Bearing (AMB) technology. ... -
Modeling and validation of losses due to unbalanced loading of stand-alone generators
(IEEE, 2017)The goal of this paper is to evaluate the possibility of deriving a simple lumped electrical model of the additional losses in stand-alone synchronous generators due to unbalanced loading. An in depth analysis will reveal ... -
Modeling hydrogen storage in boron-substituted graphene decorated with potassium metal atoms
(Wiley, 2015)Boron-substituted graphene decorated with potassium metal atoms was considered as a novel material for hydrogen storage. Density functional theory calculations were used to model key properties of the material, such as ... -
Modeling of bimetallic Pt-based electrocatalyst on extended-surface support for advanced hydrogen compression and separation
(Elsevier, 2014)Electrochemical hydrogen compression (EHC) process can be used to purify and separate hydrogen from its mixtures. In this regards question of carbon monoxide (CO) tolerance of electrocatalyst, used in such a process (e.g., ... -
Modeling the flow and heat transfer in a packed bed high temperature gas-cooled reactor in the context of a systems CFD approach
(ASME, 2012)ABSTRACT Engineers are faced with two major challenges when carrying out the thermal-fluid design of a complex system consisting of many interacting components. The first challenge is to predict the performance of all the ... -
Modeling the nonisothermal devolatilization kinetics of typical South African coals
(ACS, 2014)Multicomponent model fitting was conducted in order to evaluate the devolatilization rate behavior of four typical South African coals, with the aid of nonisothermal thermogravimetry. Rate evaluation was conducted at four ... -
A modelling evaluation of an ammonia-fuelled microchannel reformer for hydrogen generation
(Elsevier, 2014)Hydrogen production from an ammonia-fuelled microchannel reactor is simulated in a three-dimensional (3D) model implemented via Comsol Multiphysics™. The work described in this paper endeavours to obtain a mathematical ... -
Modelling nanoparticles parameters for antimicrobial activity
(Springer, 2020)The current study reveals the antimicrobial activity of various nanoparticles (NPs) against numerous microorganisms through statistical models that define suitable parameters to improve the antimicrobial efficacy of NPs. ... -
Modelling of convection heat transfer in ducts in 1D systems codes
(IHTC, 2018)Convection heat transfer between a solid and a fluid plays a crucial role in amongst others ducts in heat exchangers, the riser tubes in reactor cavity cooling systems and between the graphite and coolant channels in the ... -
Modelling of convection heat transfer in the SNU Riser Heat transfer Experimental Facility (RHEF)
(SAAM, 2018)The Reactor Cavity Cooling System (RCCS) of a High Temperature Gas-cooled Reactor (HGTR) plays an important role in ensuring the integrity of the HTGR during normal operating and accident conditions. The performance of ... -
Modelling the adsorption of natural organic matter on Ag (111) surface: insights from dispersion corrected density functional theory calculations
(Elsevier, 2019)Understanding the nature of the interactions between natural organic matter (NOM) and engineered nanoparticles (ENPs) is of crucial importance in understanding the fate and behaviour of engineered nanoparticles in the ... -
Modified earliest decoding for random network codes
(IEEE, 2011)We present a practical, modified version of earliest decoding for random linear network coding networks. This decoding method has a lower complexity and decoding delay than traditional Gaussian elimination decoding schemes -
Modified earliest decoding in networks that implement random linear network coding
(IEEE, 2012)In this paper we present a formalised description of Modified Earliest Decoding. We simulate the performance of the method in comparison with Earliest Decoding in networks that implement random linear network coding. We ... -
Modulated synthesis of zirconium-metal organic framework (Zr-MOF) for hydrogen storage applications
(Elsevier, 2014)A modulated synthesis of Zr-metal organic framework (Zr-MOF) with improved ease of handling and decreased reaction time is reported to yield highly crystalline Zr-MOF with well-defined octahedral shaped crystals for practical ... -
Moisture adsorption and desorption characteristics of some South African coals
(SAIMM, 2013)The high final total moisture content of fine coal after mining and processing is one of the major reasons that this resource is not extensively used in subsequent power generation, combustion, or other conversion processes. ...