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Modelling of an electric IR heater at transient and steady state conditions Part II: modelling a paper dryer

Pettersson, M and Stenström, Stig LU (2000) In International Journal of Heat and Mass Transfer 43(7). p.1223-1232
Abstract
A model for an electric infrared (IR) paper dryer has been developed. The model includes non-grey radiative heat transfer between the different parts of the IR heater, as well as conduction in reflector material and convective cooling of surfaces. Such heat transfer calculations are combined with energy balances to provide a system of equations that simulates the behaviour of an electric III dryer. Using IR module voltage as the only input, the model predicts the temperature of dryer components and cooling air, as well as the net radiation heat transfer to the paper sheet at steady state and transient conditions. The model has been used to investigate trends in efficiency and component temperature with changing voltage and paper grade.... (More)
A model for an electric infrared (IR) paper dryer has been developed. The model includes non-grey radiative heat transfer between the different parts of the IR heater, as well as conduction in reflector material and convective cooling of surfaces. Such heat transfer calculations are combined with energy balances to provide a system of equations that simulates the behaviour of an electric III dryer. Using IR module voltage as the only input, the model predicts the temperature of dryer components and cooling air, as well as the net radiation heat transfer to the paper sheet at steady state and transient conditions. The model has been used to investigate trends in efficiency and component temperature with changing voltage and paper grade. Emphasis has been on back reflector temperature and dryer efficiency. Also, the transients during start-up of an IR paper dryer have been investigated. The study indicates that the transients of the back reflector is important for the time needed to reach steady state heat flux at the paper sheet. (C) 2000 Elsevier Science Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
radiation heat transfer, IR, paper, drying, modelling
in
International Journal of Heat and Mass Transfer
volume
43
issue
7
pages
1223 - 1232
publisher
Pergamon
external identifiers
  • wos:000085202800015
  • scopus:0343570495
ISSN
0017-9310
DOI
10.1016/S0017-9310(99)00202-1
language
English
LU publication?
yes
id
1f75616f-822c-4fd4-8dcf-70a9d7bfff6a (old id 3914003)
date added to LUP
2013-07-01 12:17:17
date last changed
2017-03-19 03:31:09
@article{1f75616f-822c-4fd4-8dcf-70a9d7bfff6a,
  abstract     = {A model for an electric infrared (IR) paper dryer has been developed. The model includes non-grey radiative heat transfer between the different parts of the IR heater, as well as conduction in reflector material and convective cooling of surfaces. Such heat transfer calculations are combined with energy balances to provide a system of equations that simulates the behaviour of an electric III dryer. Using IR module voltage as the only input, the model predicts the temperature of dryer components and cooling air, as well as the net radiation heat transfer to the paper sheet at steady state and transient conditions. The model has been used to investigate trends in efficiency and component temperature with changing voltage and paper grade. Emphasis has been on back reflector temperature and dryer efficiency. Also, the transients during start-up of an IR paper dryer have been investigated. The study indicates that the transients of the back reflector is important for the time needed to reach steady state heat flux at the paper sheet. (C) 2000 Elsevier Science Ltd. All rights reserved.},
  author       = {Pettersson, M and Stenström, Stig},
  issn         = {0017-9310},
  keyword      = {radiation heat transfer,IR,paper,drying,modelling},
  language     = {eng},
  number       = {7},
  pages        = {1223--1232},
  publisher    = {Pergamon},
  series       = {International Journal of Heat and Mass Transfer},
  title        = {Modelling of an electric IR heater at transient and steady state conditions Part II: modelling a paper dryer},
  url          = {http://dx.doi.org/10.1016/S0017-9310(99)00202-1},
  volume       = {43},
  year         = {2000},
}