Gas-particle flow through preforated plates - Thesis Example

Historically developing and investigating such systems has been a complex endeavour. These challenges have been ameliorated significantly with the introduction of fluid computational systems. This text is aimed at analysing gas particulate systems that are specifically designed for service with perforated plate systems. Perforated plate systems present unique challenges in themselves because of the effects of closely placed fluid streams. This investigation will attempt to describe gas solid systems flowing through perforated plates by developing a complete background through secondary research.

Various industrial and other applications necessitate the utilisation of gas solid systems. These systems have been in use for a long period of time dating to as far back as the 1920’s when commercial attempts at coal gasification were being performed. The forty’s saw the application of these multi phase systems to the FCC (fluid catalytic cracking) systems while the fifties saw an increase in their use to processes such as sulphide roasting, drying and calcining. Similarly the sixty’s witnessed the growth of these systems to the commercial production of various monomers such as the production of acrylonitrile, vinyl chloride and oxychlorination processes. (Crowe) In rapid succession the seventies also witnessed various improvements in these petro chemical processes with the use of multi phase systems.

However, through these entire developments one thing remained common to all processes other than the use of solid gas systems. This commonality was the use of perforated plates to mix up these gas solid systems. (Crowe, Sommerfield and Yutaka, Multiphase Flows with Droplets and Particles) The preference provided to perforated plates stemmed from the need to let fluid streams through and to ensure enough turbulence to promote mixing. In due course of time, these solid gas systems along with the use of