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Experimental studie...
Experimental studies on dewatering during roll forming of paper
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- Holm, Richard (författare)
- KTH,FaxénLaboratoriet,Mekanik
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- Söderberg, L. Daniel (författare)
- KTH,Mekanik
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- Norman, Bo (författare)
- KTH,Pappersteknologi
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(creator_code:org_t)
- 2005
- 2005
- Engelska.
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Ingår i: Nordic Pulp & Paper Research Journal. - 0283-2631 .- 2000-0669. ; 20:2, s. 205-211
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.3...
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visa färre...
Abstract
Ämnesord
Stäng
- Pressure and wire position measurements have been performed in an experimental facility, the KTH-Former, which intends to model the roll-forming zone of a paper machine. The measured pressure distributions in the forming zone are shown to have more complex patterns than the simple model p=T/R, which normally is referred to as the nominal pressure. It is also shown that an increase in wire tension has a similar effect as a decrease in flow-rate on the shape of the pressure distribution. This is a consequence of that the flow to a large extent is governed by the relation between the dynamic pressure and the nominal pressure. For the case of partial dewatering the suction peak that appears at the roll-wire separation point has a strong influence on the pressure distribution upstream. Finally, it is shown that the drainage has a stabilizing effect on the dewatering pressure.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Nyckelord
- papermaking
- forming
- roll dewatering
- experimental measurements
- Engineering mechanics
- Teknisk mekanik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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