Title page for ETD etd-07022009-133535

Document Type Master's Dissertation
Author Visagie, Johannes Petrus
Email janus.visagie@sasol.com
URN etd-07022009-133535
Document Title Generic gasifier modelling : evaluating model by gasifier type
Degree MEng
Department Chemical Engineering
Advisor Name Title
Mr C Sandrock Supervisor
  • modelling
  • generic
  • summary
  • characteristics
  • gasifier
Date 2009-04-28
Availability unrestricted

There are many different types of gasifiers used for commercial or research purposes. These gasifier varieties differ in a number of ways, such as the direction of material flow or the physical chemical contact between the different species. These differences affect the modelling procedure and philosophy required to describe the gasification processes accurately.

Honeywell wishes to incorporate a generic gasifier model into their UNISIM DESIGN engine to simulate gasifiers accurately and calculate certain properties. Such a model does however not yet exist.

Presented in this document is a summary of the similarities and mutual properties among the different coal gasifiers, which allow for certain generic modelling procedures to be followed. The paper also highlights the discrepancies among these gasifiers and the areas where different modelling approaches should be followed. Apart from the specific gasifier characteristics, the phenomena of reaction kinetics, heat transfer and mass transfer were also investigated to ascertain their significance on gasifiers and specifically gasifier modelling. By following the guidelines provided in this paper, it should be possible to develop a generic gasifier model in any modelling environment.

2008, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria

Please cite as follows:

Visagie, JP 2008, Generic gasifier modelling : evaluating model by gasifier type, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd-07022009-133535/ >

  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  dissertation.pdf 2.13 Mb 00:09:52 00:05:04 00:04:26 00:02:13 00:00:11

Browse All Available ETDs by ( Author | Department )

If you have more questions or technical problems, please Contact UPeTD.