Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Collections
Journal articles
Magazine articles
New learnings and strategies for meeting future recovery boiler particulate emission limits with existing electrostatic precipitators, TAPPI Journal June 2021
ABSTRACT: It is foreseeable that recovery boiler particulate emission limits in the United States and Canada will continue to get more stringent with time. Because of this, continued improvement of emission control equipment, as well as a better understanding of how operating parameters affect performance, are necessary. Although electrostatic precipitators (ESPs) are often viewed as a mature technology, many improvements in ESP technology continue to be developed. In recent years, academic efforts have improved the understanding of recovery boiler operating conditions on ESP performance. Additionally, advancements in materials, power supplies, and design continue to improve the efficiency and reliability of ESPs.This paper discusses how recovery boiler and electrostatic precipitator (ESP) operating factors affect ESP perfor-mance based on process simulations and practical experience, and how these learnings can be implemented to improve future operation of existing ESPs.
Journal articles
Magazine articles
Rheological behavior of magnetic pulp fiber suspensions, TAPPI Journal June 2021
ABSTRACT: This paper is focused on the rheology of magnetic pulp suspensions in absence and presence of an external magnetic field. Magnetic fibers were prepared by the lumen loading method using bleached eucalyptus fibers and cobalt ferrite (CoFe2O4) nanoparticles. The effect of mass consistency, temperature, concentration of magnetic fibers, and magnetic field strength on yield stress and apparent viscosity of the suspensions were investigated. In the absence of an applied field, a dependence of yield stress with consistency, as well as with the percentage of magnetic fibers present in the suspension, was found. In flow tests, all the suspensions exhibited shear-thinning behavior, showing that the viscosity is only affected by the consistency of the suspension. On the other hand, magnetorheological measurements show a negative effect of the applied magnetic field on the viscosity of the suspension.
Journal articles
Magazine articles
As Companies Abandon WFH Trend, Will Printing and Writing Bounce Back?, Paper360º March/April 2021
As Companies Abandon WFH Trend, Will Printing and Writing Bounce Back?, Paper360º March/April 2021
Journal articles
Magazine articles
ASPI News, Paper360º March/April 2021
ASPI News, Paper360º March/April 2021
Journal articles
Magazine articles
Build from Strength, Paper360º March/April 2021
Build from Strength, Paper360º March/April 2021
Journal articles
Magazine articles
How Surface Design of Suction and Press Rolls Affects Dewatering, Paper360º March/April 2021
How Surface Design of Suction and Press Rolls Affects Dewatering, Paper360º March/April 2021
Journal articles
Magazine articles
Over the Wire, Paper360º March/April 2021
Over the Wire, Paper360º March/April 2021
Journal articles
Magazine articles
Planning ´Sharpens the Axe’, Paper360º March/April 2021
Planning ´Sharpens the Axe’, Paper360º March/April 2021
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º March/April 2021
TAPPI Journal Summaries, Paper360º March/April 2021
Journal articles
Magazine articles
TAPPI News, Paper360º March/April 2021
TAPPI News, Paper360º March/April 2021