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Applicering av befintliga handberäkningsmetoder på tidsberoende brandförlopp

Karlsson, Oscar LU and Kjellberg, Patrik LU (2016) In LUTVDG/TVBB VBRM01 20152
Division of Fire Safety Engineering
Abstract
The aim of this study is to investigate whether simple hand calculation methods are useful complements to CFD-simulations while calculating the temperature and height of the hot gas layer for transient fires. The analysis is based on evaluations of results from experiments, CFD-simulations and hand calculation methods. The room used corresponds to a 1/4th scale ISO 9705 room. The results show that hand calculation methods can be useful tools for calculations on transient fires. However, the results strongly depend on how the methods are used and how the parameters included are handled. The heat transfer coefficient was identified as a very important parameter. It is also difficult to predict, especially for walls consisting of several... (More)
The aim of this study is to investigate whether simple hand calculation methods are useful complements to CFD-simulations while calculating the temperature and height of the hot gas layer for transient fires. The analysis is based on evaluations of results from experiments, CFD-simulations and hand calculation methods. The room used corresponds to a 1/4th scale ISO 9705 room. The results show that hand calculation methods can be useful tools for calculations on transient fires. However, the results strongly depend on how the methods are used and how the parameters included are handled. The heat transfer coefficient was identified as a very important parameter. It is also difficult to predict, especially for walls consisting of several different materials. An alternative method for predicting the heat transfer coefficient for such walls is presented in this report. (Less)
Please use this url to cite or link to this publication:
author
Karlsson, Oscar LU and Kjellberg, Patrik LU
supervisor
organization
alternative title
Applying existing hand calculation methods on transient fires
course
VBRM01 20152
year
type
M2 - Bachelor Degree
subject
keywords
Handberäkningsmetoder, CFD, FDS, experiment, två-zon, datareducering, brandgaslager, värmeövergångstal
publication/series
LUTVDG/TVBB
report number
5508
language
Swedish
id
8593692
date added to LUP
2016-02-04 15:30:45
date last changed
2016-02-04 15:30:45
@misc{8593692,
  abstract     = {The aim of this study is to investigate whether simple hand calculation methods are useful complements to CFD-simulations while calculating the temperature and height of the hot gas layer for transient fires. The analysis is based on evaluations of results from experiments, CFD-simulations and hand calculation methods. The room used corresponds to a 1/4th scale ISO 9705 room. The results show that hand calculation methods can be useful tools for calculations on transient fires. However, the results strongly depend on how the methods are used and how the parameters included are handled. The heat transfer coefficient was identified as a very important parameter. It is also difficult to predict, especially for walls consisting of several different materials. An alternative method for predicting the heat transfer coefficient for such walls is presented in this report.},
  author       = {Karlsson, Oscar and Kjellberg, Patrik},
  keyword      = {Handberäkningsmetoder,CFD,FDS,experiment,två-zon,datareducering,brandgaslager,värmeövergångstal},
  language     = {swe},
  note         = {Student Paper},
  series       = {LUTVDG/TVBB},
  title        = {Applicering av befintliga handberäkningsmetoder på tidsberoende brandförlopp},
  year         = {2016},
}