You need JavaScript to view this

Grinding parameters and energy consumption. Final report; Energibehovet som funktion av slipparametrarna; Slutrapport

Technical Report:

Abstract

Computer modelling of the grinding event, and studies of the mechanisms of the grinding process aimed at determining grindstone structure and the temperature in the grinding zone between stone and wood have extended our understanding of the process and improved the prospects for making grinding more efficient. The aim of the project was to develop a model of grinding that takes into account the viscoelasic properties of wood and the stone sharpness as a physically measurable quantity. All the variables in the model have been verified and it should now be possible to use the model as a means of controlling the grinding process. One aim was to study the role of shower water in grinding. Changing the shower water temperature and flow rate affects the cooling of the stone and thus indirectly the defibration temperature. If the external pressure is not increased, a rise in defibration temperature due to a lower shower flow rate means a high risk of steam formation in the grinding zone. This adversely affects groundwood quality, although it does bring a small reduction in energy consumption
Authors:
Loennberg, B; Bengs, U; Finell, M; Halminen, J [1] 
  1. Aabo Akademi, Turku (Finland)
Publication Date:
Oct 01, 1993
Product Type:
Technical Report
Report Number:
KCL-KUITU-23
Reference Number:
SCA: 320303; PA: FI-93:003300; EDB-94:013015; NTS-94:007757; ERA-19:004305; SN: 93001063841
Resource Relation:
Other Information: DN: FIBRE Research Programme; PBD: 1993
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; GRINDING; ENERGY CONSUMPTION; PAPER INDUSTRY; ENERGY CONSERVATION; GRINDING MACHINES; WOOD; MATHEMATICAL MODELS; FIBERS; BENCH-SCALE EXPERIMENTS; 320303; EQUIPMENT AND PROCESSES
OSTI ID:
10111523
Research Organizations:
Finnish Pulp and Paper Research Inst., Espoo (Finland)
Country of Origin:
Finland
Language:
Swedish
Other Identifying Numbers:
Other: ON: DE94702098; TRN: FI9303300
Availability:
OSTI; NTIS
Submitting Site:
FI
Size:
36 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Loennberg, B, Bengs, U, Finell, M, and Halminen, J. Grinding parameters and energy consumption. Final report; Energibehovet som funktion av slipparametrarna; Slutrapport. Finland: N. p., 1993. Web.
Loennberg, B, Bengs, U, Finell, M, & Halminen, J. Grinding parameters and energy consumption. Final report; Energibehovet som funktion av slipparametrarna; Slutrapport. Finland.
Loennberg, B, Bengs, U, Finell, M, and Halminen, J. 1993. "Grinding parameters and energy consumption. Final report; Energibehovet som funktion av slipparametrarna; Slutrapport." Finland.
@misc{etde_10111523,
title = {Grinding parameters and energy consumption. Final report; Energibehovet som funktion av slipparametrarna; Slutrapport}
author = {Loennberg, B, Bengs, U, Finell, M, and Halminen, J}
abstractNote = {Computer modelling of the grinding event, and studies of the mechanisms of the grinding process aimed at determining grindstone structure and the temperature in the grinding zone between stone and wood have extended our understanding of the process and improved the prospects for making grinding more efficient. The aim of the project was to develop a model of grinding that takes into account the viscoelasic properties of wood and the stone sharpness as a physically measurable quantity. All the variables in the model have been verified and it should now be possible to use the model as a means of controlling the grinding process. One aim was to study the role of shower water in grinding. Changing the shower water temperature and flow rate affects the cooling of the stone and thus indirectly the defibration temperature. If the external pressure is not increased, a rise in defibration temperature due to a lower shower flow rate means a high risk of steam formation in the grinding zone. This adversely affects groundwood quality, although it does bring a small reduction in energy consumption}
place = {Finland}
year = {1993}
month = {Oct}
}