Now showing items 1-10 of 253
The development of a method for the inclusion of salinity effects into environmental life cycle assessments.
The work presented in this thesis stemmed out of the apparent lack of a method for incorporating salinity effects into environmental life cycle assessments. Salination of the water resources is a well-known problem in South ...
A study of the cane sugar diffusion process.
A mathematical model has been developed to represent the extraction of sugar from sugar cane in the diffusion process. As a consequence of the structure of prepared cane, extraction is postulated to occur via two first ...
A study of comminution in a vertical stirred ball mill.
A 20 litre experimental batch and continuous test rig and 5 litre batch and 50 litre continuous test rigs for stirred ball milling were built at the University of Natal and Mintek respectively. All the mills featured a ...
Automation of a static-synthetic apparatus for vapour-liquid equilibrium measurement.
The measurement of vapour-liquid equilibrium data is extremely important as such data are crucial for the accurate design, simulation and optimization of the majority of separation processes, including distillation, ...
Gas residence time testing and model fitting : a study of gas-solids contacting in fluidised beds.
This work is concerned with the effect of vessel geometry on the hydrodynamics of fluidisation of a bed of milled iron oxide. The effect of going from a cold model representative of a typical pilot plant reactor to one ...
Design and operation of a multistage pressurized fluidized bed combuster.
A three-stage Pressurized Fluidized Bed Combustor (PFBC) of principal dimensions, O,4Sm internal diameter by4m high was designed and fabricated to burn South African coals, with particular reference to coals unsuitable ...
Kinetic and mechanistic studies on the biological and chemical leaching of nickel from sulphide ores.
The aim of this investigation was to extend the knowledge of the bacterial leaching of copper and zinc sulphides into the area of nickel sulphide leaching. By far the major portion of both theoretical and practical expertise ...
Comparison between air drying and steam drying in a fluidized bed.
No abstract available.
A study of an on-line recursive filter applied to a milling circuit.
No abstract available.
Neural network models for leukaemia.
Artificial neural networks (ANN) can detect complex non-linear relationships between independent and dependent variables. Properly trained ANNs have repeatedly demonstrated superior predictive accuracy to other predictive ...