Browsing Engineering by Title
Now showing items 449-468 of 1403
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Economic feasibility of a pre-oxidative process to enhance solid-state chromite reduction
(North-West University (South Africa) , Potchefstroom Campus, 2015)Chromite ore mining is the only commercially viable source of new chromium (Cr) units. South Africa (RSA) holds the majority, approximately 75%, of the world’s exploitable chromite ore resources. The vast majority of mined ... -
The economic potential of natural gas in Nigeria
(North-West University, 2007)Nigeria is blessed with a huge reserve of natural gas. Currently, Nigerian natural gas reserve is estimated at 185 trillion cubic feet (Tcf). Until recently, most of the gases produced in the course of crude oil exploration ... -
Economic viability of a floating gas-to-liquids (GTL) plant
(North-West University, 2007)Today, a large proportion of the world's plenteous offshore natural gas resource are stranded, flared or re-injected due to constraints pertaining to its utilisation. The major constraint in the utilisation of this ... -
Educational software for understanding integrated blood glucose effects
(2011)The World Health Organisation considers diabetes mellitus as a fast-growing epidemic. The number of documented cases increase each year; together with the number of patients hospitalised due to complications associated ... -
The effect of a ripple wave power supply on PEM electrolysis efficiency
(North-West University (South Africa), 2021)The two matured water electrolysis technologies commercially available today are Alkaline water electrolysis and Proton exchange membrane water electrolysis (PEMWE). Although alkaline water electrolysis is in a more mature ... -
Effect of alkaline activator composition on the geopolymer properties produced from South African power station fly ash
(North-West University (South Africa)., 2022)Eskom produce ~36 million tons of ash annually, of which 90 % is fly ash. Only 7 % of the ash is valorised; much lower than the global average of ~75 %. Geopolymer production from fly ash, as a Portland cement substitute, ... -
The effect of cellobiohydrolase I on low consistency refining and handsheet properties
(North-West University (South Africa)., 2022)Papermaking is an energy-intensive process, with mechanical pulp refining accounting for 30% of the total electrical energy consumption during papermaking. Presently, with significant economic and environmental concerns, ... -
The effect of changing temperature and mass flow rate on the charging and discharging time in a horizontal packed bed passive space heating system
(North-West University, 2018)Research into rock-beds for residential use has declined over the past three decades. Although rock-beds were constructed for agricultural and solar home applications in the 1970’s and 1980’s, very little research has been ... -
Effect of computer based training and testing on structured on–the–job training programs
(North-West University, 2010)Human capital is the only resource within an organisation that can learn. Developing high levels of competence in employees is one of the most challenging issues in organisations. Off–the–Job training programs either ... -
The effect of condenser backpressure on station thermal efficiency : Grootvlei Power Station as a case study
(2014)Grootvlei Power Station’s thermal efficiency had been on a steady declining trend since it was re-commissioned in 2008, which had tremendous financial implications to the company at the time of writing. The main contributory ... -
The effect of controlling main ventilation fan inlet guide vanes for a deep level platinum mine to reduce electrical costs
(North-West University (South Africa) , Potchefstroom Campus, 2017)Because of the annual electricity increases from Eskom that are above inflation, and the mining industry that is struggling to survive due to continuous increase in operating cost, the low selling price of precious ... -
The effect of distributed generation on the quality of power
(North-West University, 2006)This document presents a study of the effects distributed generation (DG) has on the power quality (PQ) of electrical power networks. At the time the study was proposed the scheme of DG was speculative by nature and the ... -
The effect of feed water TDS on RO membrane rejection rates and performance
(North-West University (South Africa)., 2023)Power generation is a major user of fresh water, which is becoming important for Eskom and South Africa due to the water-scarce status. Therefore, the water usage at a thermal power station is a key metric and reverse ... -
The effect of microalgae as a binder on the characteristics of agglomerated coal fines
(North-West University (South Africa), 2021)The global coal demand is increasing at an alarming rate, while reserves are depleting. This creates the need for more coal to be produced or to introduce an alternative approach that is more sustainable. The processing ... -
The effect of mineral addition on the pyrolysis products derived from typical Highveld coal
(2014)Mineral matter affect various coal properties as well as the yield and composition of products released during thermal processes. This necessitates investigation of the effect of the inherent minerals on the products derived ... -
The effect of molecular weight on the absorption enhancing properties of n-trimethyl chitosan chloride
(North-West University, 2008)Delivery problems have limited the uptake of many promising new peptides drugs. The co-administration of absorption enhancing agents such as H-Trimethyl chitosan chloride (TMC), a chitosan derivative, has been proven. The ... -
Effect of operating parameters on bio-products obtained from the liquefaction of Quinoa lignocellulose materials
(North-West University (South Africa) , Potchefstroom Campus, 2017)An increased reliance on energy production and the consumption thereof is the result of an exponentially growing world population. Current global energy resources rely greatly on coal, natural gas and to a small extent on ... -
The effect of ovality on the membrane stress in a 2" thick walled 90 deg steam pipe bend
(North-West University, 2018)Pipe bends are an integral part of any pipe work system. Pipe bends are often seen as the weak point in a pipe work system due to the additional stresses that are imposed on a bend during operation as well as the defects ... -
The effect of particle size on the performance of low-smoke fuels in coal stoves
(North-West University, Potchefstroom Campus, 2018)The link between exposure to household air pollution (HAP) and ill-health has been consistently drawn in the literature. The World Health Organisation (WHO) places the burden of disease from HAP at an estimated 4.3 million ... -
Effect of powder characteristics and layer thickness on the densification of Selective Laser Melted CoCrMo
(North-West University (South Africa)., 2023)Selective laser melting (SLM) is a metal additive manufacturing (AM) process that fabricates parts according to a CAD design in a layer-by-layer fashion by melting metal powder. There are a vast number of powder-related ...