Advanced

Absorption of infrared radiation and the radiation transfer mechanism in paper. Part I: Theoretical model

Pettersson, M and Stenström, Stig LU (1998) In Journal of Pulp and Paper Science 24(11). p.349-355
Abstract
Infrared dryers, both gas fired and electrically healed, have become a widespread technology in the paper industry. This work proposes a model for the absorption of thermal radiation in the thickness direction of a paper sheet. The model is based on the multilayer idealization of a paper sheet proposed by Scallan and Porch. In this model, the optical properties of paper are considered as the result of multiple reflections and transmission processes between the layers in the paper sheet. Measurements on a number of commercial paper grades indicate that the basis weight per layer is close to 4 g/m(2). The model parameters, the reflectivity and transmissivity of a single layer; have been fitted to experimental literature data for the... (More)
Infrared dryers, both gas fired and electrically healed, have become a widespread technology in the paper industry. This work proposes a model for the absorption of thermal radiation in the thickness direction of a paper sheet. The model is based on the multilayer idealization of a paper sheet proposed by Scallan and Porch. In this model, the optical properties of paper are considered as the result of multiple reflections and transmission processes between the layers in the paper sheet. Measurements on a number of commercial paper grades indicate that the basis weight per layer is close to 4 g/m(2). The model parameters, the reflectivity and transmissivity of a single layer; have been fitted to experimental literature data for the reflectivity and transmissivity of paper at different wavelengths, basis weights and moisture contents. In Part II of this work, the model will be used to study the absorption of thermal radiation in the thickness direction of a paper sheet during infrared drying. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
mathematical models, equations, infrared radiation, absorption, heat, transfer, z direction, paper sheets, optical properties, multiply papers
in
Journal of Pulp and Paper Science
volume
24
issue
11
pages
349 - 355
publisher
TAPPI
external identifiers
  • wos:000077077900003
  • scopus:0032208204
ISSN
0826-6220
language
English
LU publication?
yes
id
ea336b82-d9b9-46d0-ad3f-f82ba4d90934 (old id 3914015)
date added to LUP
2013-07-01 12:21:21
date last changed
2017-01-01 06:41:17
@article{ea336b82-d9b9-46d0-ad3f-f82ba4d90934,
  abstract     = {Infrared dryers, both gas fired and electrically healed, have become a widespread technology in the paper industry. This work proposes a model for the absorption of thermal radiation in the thickness direction of a paper sheet. The model is based on the multilayer idealization of a paper sheet proposed by Scallan and Porch. In this model, the optical properties of paper are considered as the result of multiple reflections and transmission processes between the layers in the paper sheet. Measurements on a number of commercial paper grades indicate that the basis weight per layer is close to 4 g/m(2). The model parameters, the reflectivity and transmissivity of a single layer; have been fitted to experimental literature data for the reflectivity and transmissivity of paper at different wavelengths, basis weights and moisture contents. In Part II of this work, the model will be used to study the absorption of thermal radiation in the thickness direction of a paper sheet during infrared drying.},
  author       = {Pettersson, M and Stenström, Stig},
  issn         = {0826-6220},
  keyword      = {mathematical models,equations,infrared radiation,absorption,heat,transfer,z direction,paper sheets,optical properties,multiply papers},
  language     = {eng},
  number       = {11},
  pages        = {349--355},
  publisher    = {TAPPI},
  series       = {Journal of Pulp and Paper Science},
  title        = {Absorption of infrared radiation and the radiation transfer mechanism in paper. Part I: Theoretical model},
  volume       = {24},
  year         = {1998},
}