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Paper machine drying rate

contributor authorTAPPI - TAPPI
date accessioned2017-09-04T16:31:41Z
date available2017-09-04T16:31:41Z
date copyright01/01/2010
date issued2010
identifier otherUPKIRCAAAAAAAAAA.pdf
identifier urihttp://yse.yabesh.ir/std;quessioutho4/handle/yse/95114
description abstractThis TIP outlines procedures for calculating paper machine drying rates for coated and uncoated papers and provides drying rate curves. The objective of the TIP is to define rate of water removal on a common basis for mills to use to compare a particular machine to past performance and to other machines. The definition of drying rate and its calculation are simple to permit widespread use. These procedures cannot be used for machines with auxiliary drying equipment such as infrared dryers and impingement dryers unless these auxiliary dryers are shut off.
Data points on the curves represent observed performance of existing machines. Lines represent calculated average and two-sigma variation of plotted data.
The calculation does not identify or account for factors that affect drying rate. There are many variables that can affect calculated drying rate.These factors include:
• Sheet furnish
• Siphon design
• Use of dryer bars
• Pocket ventilation
• Dryer fabric application
• Dryer configuration
•Dryer felting
•Dryer surface scale
• Hood humidity
• Reel moisture content
• Type of pressing
• Amount of pressing
• Breaker stack
languageEnglish
titleTAPPI TIP 0404-07num
titlePaper machine drying rateen
typestandard
page21
statusActive
treeTAPPI - TAPPI:;2010
contenttypefulltext
subject keywordsAfter dryers
subject keywordsBags
subject keywordsBleached board
subject keywordsComputation
subject keywordsCorrugating medium
subject keywordsDryers
subject keywordsDrying
subject keywordsFine papers
subject keywordsFree sheet
subject keywordsKraft papers
subject keywordsLinerboard
subject keywordsMechanical papers
subject keywordsNewsprint
subject keywordsPrinting papers
subject keywordsPulps
subject keywordsWater removal
subject keywordsWood free papers
subject keywordsWriting papers


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