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Development of a basic design tool for multi-effect distillation plant evaporators / H. Bogaards

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dc.contributor.author Bogaards, Hendrik
dc.date.accessioned 2011-02-24T13:35:04Z
dc.date.available 2011-02-24T13:35:04Z
dc.date.issued 2009
dc.identifier.uri http://hdl.handle.net/10394/3997
dc.description Thesis (M.Ing. (Nuclear Engineering))--North-West University, Potchefstroom Campus, 2009.
dc.description.abstract A need was identified for a set of basic design tools for Multi-Effect Distillation (MED) plant evaporators. This led to an investigation into the different types of evaporators as well as further research on horizontal falling film evaporators as used in the MED process. It also included the theory on these types of evaporators. In order not to duplicate existing design tools, an investigation was also performed on some of the tools that are currently available. The first set of tools that were developed were tools, programmed in EES (Engineering Equation Solver), for the vacuum system and the evaporator. These programs can be used to simulate different parameters (like different mass flows and temperatures). That enables the correct selection of components for the vacuum system and can be used to address sizing issues around the evaporator. It can also be used to plan the layout of the plant. The second of the design tools was developed by designing and building a flow pattern test section. From the flow pattern test section a set of curves for the wetted length under different conditions was obtained which can be used in order to design the sieve tray. This set of curves was found to be accurate for municipal as well as seawater and can be used in the design of the sieve tray of the evaporator. Further development can be done by implementing the figures of the wetted length into a simulation package like, for example, Flownex (a system CFD (Computational Fluid Dynamics) code that enables users to perform detail design, analysis and optimization of a wide range of thermal-fluid systems). The background gained from the study done on the evaporator can also be implemented into such a package. This could solve the problem of different design packages by creating a single design package with all of the above mentioned options included.
dc.publisher North-West University
dc.subject Multi-effect distillation en
dc.subject MED en
dc.subject Evaporator en
dc.subject Falling film en
dc.subject Flow pattern en
dc.subject Test section en
dc.subject Sieve tray en
dc.subject Wetted length en
dc.subject Vacuum system en
dc.subject Tools en
dc.title Development of a basic design tool for multi-effect distillation plant evaporators / H. Bogaards en
dc.type Thesis en
dc.description.thesistype Masters


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    This collection contains the original digitized versions of research conducted at the North-West University (Potchefstroom Campus)

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