18 research outputs found
On the important of non-ideal flow effects in the operation of industrial-scale adiabatic membrane reactors
Predicting the effects of process parameters on the performance of phosphoric acid fuel cells using a 3-D numerical approach
Heat dispersion effects on the functional characteristics of industrial-scale adiabatic membrane reactors
Natural cross-ventilation in buildings: Building-scale experiments, numerical simulation and thermal comfort evaluation
Computational analysis of horizontal cold wall CVD reactors at low pressure: Application to tungsten deposition from pyrolysis of W(CO)6
A three-dimensional mathematical model has been developed for the simulation of horizontal cold wall CVD reactors aiming at the design and scale-up of new CVD reactors as well as at the optimisation of the operation of existing systems. The conservation equations of mass, momentum and energy are discretized by the finite-volume method and solved on a curvilinear non-orthogonal grid, assuming steady state conditions, laminar flow and ideal gas behaviour. The model accounts for the dependence of physical properties on temperature, pressure and composition, for realistic reaction kinetics, radiation, as well as for multi-component diffusion and thermal diffusion effects. Results from the application of the model to the low-pressure deposition of tungsten from W(CO)6 are presented and discussed