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Process considerati...
Process considerations and its demands on TMP property measurements - A study on tensile index
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- Ferritsius, Olof (författare)
- Mittuniversitetet,Avdelningen för kemiteknik,Mid Sweden University
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- Ferritsius, Rita (författare)
- Mittuniversitetet,Avdelningen för kemiteknik,StoraEnso Kvarnsveden,Mid Sweden University,Stora Enso Kvarnsveden
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- Hill, Jan (författare)
- QualTech AB, Tyringe
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- Karlström, Anders, 1958 (författare)
- Chalmers University of Technology, Göteborg,Chalmers tekniska högskola
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- Ferritsius, Johanna (författare)
- StoraEnso Kvarnsveden,Stora Enso Kvarnsveden
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- Eriksson, Karin (författare)
- CIT Industriell Energi, Göteborg
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: Nordic Pulp & Paper Research Journal. - 0283-2631 .- 2000-0669. ; 32:1, s. 45-53
- Relaterad länk:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- As a vital component in the strive towards improved energy efficiency in the operation of TMP refining processes, this work highlights the importance of well- designed procedures when collecting and analysing pulp properties with respect to process conditions. Process data and pulp from a CD82 chip refiner have been used to show that tensile index has strong covariance with fibre residence time calculated by the extended entropy model. A combination of theoretical and practical analysis methods has shown that, in order to assure representative, reliable results, pulp sampling procedures should comprise composite pulp samples collected during a sampling period of about three minutes. In addition, at least four subsequently collected composite pulp samples should be included in the analysis to effectively dampen effects from fast process variations as well as from slow process drift. An in-depth study on tensile index measurements clarifies that 40-60 strips should be used in the case we studied regardless if machine made paper or handsheets are considered.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Nyckelord
- Accuracy
- Composite pulp samples
- Pulp sampling procedure
- Residence time
- Tensile index
- TMP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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