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Statusövervakning av plattvärmeväxlare - med hjälp av modellsimulering i Simscape

Larsson, Patrik (2015)
Computer Science and Engineering (BSc)
Abstract
The steel company SSAB in Borlänge has five plate heat exchangers that they use to cool the process water. The water is used to cool the steel after hot rolling. The exchangers need to be cleaned sometimes because of fouling, that reduces the cooling efficiency. This results in higher energy use and higher costs in the end. The goal of this paper is to create a model of a plate heat exchanger to make different kinds of simulations. And to develop an algorithm to be able to monitor and alert when the exchanger needs to be cleaned. A model in Simscape has been created that works good enough under certain circumstances. With help from the model and measurement data two analyses where made to examine if the exchangers are cleaned too... (More)
The steel company SSAB in Borlänge has five plate heat exchangers that they use to cool the process water. The water is used to cool the steel after hot rolling. The exchangers need to be cleaned sometimes because of fouling, that reduces the cooling efficiency. This results in higher energy use and higher costs in the end. The goal of this paper is to create a model of a plate heat exchanger to make different kinds of simulations. And to develop an algorithm to be able to monitor and alert when the exchanger needs to be cleaned. A model in Simscape has been created that works good enough under certain circumstances. With help from the model and measurement data two analyses where made to examine if the exchangers are cleaned too frequently or too infrequently to day. The result of both analyses is that the exchangers to day probably are cleaned too often. Too get a working algorithm more work and evaluation needs to be done. It is shown that you can base an algorithm on monitoring the pressure. (Less)
Please use this url to cite or link to this publication:
author
Larsson, Patrik
organization
year
type
M2 - Bachelor Degree
subject
keywords
simscape, modellering, plattvärmeväxlare, nedsmutsning, övervakning
language
Swedish
id
8410427
alternative location
https://portal.ch.lu.se/Campus.NET/Services/Publication/Export.aspx?id=2827&type=doc
date added to LUP
2015-12-18 04:03:50
date last changed
2015-12-18 04:03:50
@misc{8410427,
  abstract     = {The steel company SSAB in Borlänge has five plate heat exchangers that they use to cool the process water. The water is used to cool the steel after hot rolling. The exchangers need to be cleaned sometimes because of fouling, that reduces the cooling efficiency. This results in higher energy use and higher costs in the end. The goal of this paper is to create a model of a plate heat exchanger to make different kinds of simulations. And to develop an algorithm to be able to monitor and alert when the exchanger needs to be cleaned. A model in Simscape has been created that works good enough under certain circumstances. With help from the model and measurement data two analyses where made to examine if the exchangers are cleaned too frequently or too infrequently to day. The result of both analyses is that the exchangers to day probably are cleaned too often. Too get a working algorithm more work and evaluation needs to be done. It is shown that you can base an algorithm on monitoring the pressure.},
  author       = {Larsson, Patrik},
  keyword      = {simscape,modellering,plattvärmeväxlare,nedsmutsning,övervakning},
  language     = {swe},
  note         = {Student Paper},
  title        = {Statusövervakning av plattvärmeväxlare - med hjälp av modellsimulering i Simscape},
  year         = {2015},
}