The steady state and dynamic behaviour of a demethanizer-absorber have been studied using the IBM 7040 computer. The model considers as many as 10 components and 30 ideal trays, and three feeds to the column are permitted; this allows comparison with a real column in the Polymer Corporation plant in Sarnia. The steady state solution is obtained using the Thiele-Geddes calculational procedure and the θ-method of inducing convergence. In addition other means of ensuring convergence have been extended and tested. The transient model was studied using a third-order Runge-Kutta process. Although successful, this method was extremely slow. Equilibrium constant data in numerical form based on the Braun charts have been presented and tested. The enthalpy correlations of Yen and Alexander have also been examined and used. / Thesis / Master of Engineering (MEngr)

<p> A review of theoretical analyses and predictions of the 3He and 3H bound-state properties is presented. The predictions of various theoretical models, with the choice of different nucleon-nucleon potentials and methods for solving the Schroedinger equation fer the chosen potentials, are compared with one another. For given nucleon-nucleon forces (provided the potential has a soft-core) , the diagonalisation method seems to be preferable to other methods. Among the nucleon-nucleon potentials, the Riihimaki potential is favourable compared to other realistic N-N forces. </p> <p> The experimental data on 3H and 3He form factors together with Schiff's theoretical analysis of the 3H and 3He charge form factors is brought so that study phenomenologically the wave function of a bound three-nucleon (T=1/2, J=1/2) system. </p> / Thesis / Master of Science (MSc)

This thesis deals primarily with the simulation and analysis of shunt active power filters (APF) on a three-phase power distribution system possessing a harmonic generating load. The shunt active power filters are analyzed based on effective total harmonic distortion (THD) levels and response to changing dynamics. These results are derived from the simulation of a pulse-width modulation (PWM) controlled voltage source inverter (VSI) with a capacitor connected to the DC side of the VSI. The primary difference between individual simulations is the particular control law implemented in the shunt APF.

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