skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Progression of vacuum level in successive vacuum suction boxes in a paper machine – Impact on dewatering efficiency and energy demand – A laboratory study

Bioresources, 2023-05, Vol.18 (2), p.3642-3653 [Peer Reviewed Journal]

2023. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms available at https://bioresources.cnr.ncsu.edu/about-the-journal/editorial-policies ;ISSN: 1930-2126 ;EISSN: 1930-2126 ;DOI: 10.15376/biores.18.2.3642-3653

Full text available

Citations Cited by
  • Title:
    Progression of vacuum level in successive vacuum suction boxes in a paper machine – Impact on dewatering efficiency and energy demand – A laboratory study
  • Author: Sjöstrand, Björn
  • Subjects: Boxes ; Cellulose ; Chemical Engineering ; Dewatering ; Drinking water ; Drying ; Dryness ; Dwell time ; Energy consumption ; Energy demand ; Energy Efficiency ; Kemiteknik ; Laboratories ; Lignocellulose ; Manufacturing ; Paper machines ; Papermaking ; Suction ; Tissue ; Triple box vacuum dewatering ; Vacuum ; Vacuum dewatering ; Vacuum pumps
  • Is Part Of: Bioresources, 2023-05, Vol.18 (2), p.3642-3653
  • Description: Producing tissue paper is an energy-demanding process; a significant amount of energy is expended when removing water by vacuum, mechanical pressing, and thermal drying. Because the water is most energy-demanding to remove in drying, making the preceding step of vacuum dewatering more efficient would benefit the whole process. This article focuses on developing a laboratory-scale method for verifying the nature of diminishing returns of water removal and investigating efficiency strategies of the vacuum dewatering. The theoretical concept of successive vacuum suction boxes with progressing vacuum levels was tested at the laboratory scale in order to show quantifiable results of the previously solely theoretical concept. The results confirmed that vacuum dewatering can be improved by adding progressively higher vacuum levels and that such a practice can benefit both outgoing dryness levels and expended vacuum pump energy. To truly examine the power of progression of vacuum levels, rewetting can be included in the calculations, by using an approximate value collected from pilot or full-scale measurements. For any new fiber mix, pulp type, vacuum level setup, basis weight, etc. the vacuum levels, rewetting, and dwell times need to be tuned to that specific case.
  • Publisher: Raleigh: North Carolina State University
  • Language: English
  • Identifier: ISSN: 1930-2126
    EISSN: 1930-2126
    DOI: 10.15376/biores.18.2.3642-3653
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    AUTh Library subscriptions: ProQuest Central
    SWEPUB Freely available online
    ROAD: Directory of Open Access Scholarly Resources
    DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait