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Magazine articles
A guide to developing a best management practices (bmp) plan for spent liquor, part II, TAPPI JOURNAL, December 1999, Vol. 82(12)
A guide to developing a best management practices (bmp) plan for spent liquor, part II, TAPPI JOURNAL, December 1999, Vol. 82(12)
Journal articles
Magazine articles
Three-dimensional visualization and characterization of paper machine felts and their relationship to their properties and dewatering performance, TAPPI Journal July 2021
ABSTRACT: Polymeric felts are commonly used in the papermaking process on the paper machine wet end, in the press section, and in the dryer section. They provide an important function during paper manufacturing, including as a carrier or support; as a filter media assisting with water removal on the paper machine; in retention of fibers, fines, and fillers; and in some applications, such as tissue and towel, to impart key structural features to the web. These felts can have highly interwoven complex internal structures comprised of machine direction and cross-machine direction yarns of varying sizes and chemical compositions. Here, we present a non-intrusive three-dimensional (3D) image visualization method using advanced X-ray computed tomography (XRCT). This method was used to characterize the complex 3D felt structure and determine the water removal characteristics of some commonly used paper machine felts. The structural features analyzed include porosity; specific pore-yarn interfacial surface area; 3D pore size distribution; 3D fiber or yarn-size distribution; and their variations through the thickness direction. The top, middle, and bottom layers of the felt have very different structures to assist with water removal and impart paper properties. The size distribution of the yarns, as well as the pores in the different layers of the felt, are also inherently different. These structural features were non-intrusively quantified. In addition, variation in the structural characteristics through the thickness of the felts and its potential role in papermaking is explored. In addition to the 3D structural characteristics, permeability characteristics and water removal characteristics, including rewetting of select felt samples, have also been experimentally determined. It is interesting to observe the relationship between key structural features and permeability and water removal characteristics. These relationships can provide additional insights into press felt design, as well as ways to improve product properties and the dewatering efficiency and productivity of the paper machine.
Magazine articles
Historic rittenhousetown revisited, TAPPI JOURNAL, June 1996, Vol. 79(6)
Historic rittenhousetown revisited, TAPPI JOURNAL, June 1996, Vol. 79(6)
Magazine articles
Anticipated effects of system closure on corrosion in chemical recovery equipment, TAPPI JOURNAL, August 1996, Vol.79(8)
Anticipated effects of system closure on corrosion in chemical recovery equipment, TAPPI JOURNAL, August 1996, Vol.79(8)
Magazine articles
The behavior-based approach to safety: a clear picture, an effective plan, TAPPI JOURNAL, August 1991, Vol. 74(8)
The behavior-based approach to safety: a clear picture, an effective plan, TAPPI JOURNAL, August 1991, Vol. 74(8)
Magazine articles
Characterization and evaluation of microbiologically induced corrosion on water heating networks, TAPPI JOURNAL, January 1996, Vol. 79(1)
Characterization and evaluation of microbiologically induced corrosion on water heating networks, TAPPI JOURNAL, January 1996, Vol. 79(1)
Magazine articles
Mechanism and prevention of localized corrosion of recovery boiler tubes at air ports, TAPPI JOURNAL, February 1996, Vol. 79(2)
Mechanism and prevention of localized corrosion of recovery boiler tubes at air ports, TAPPI JOURNAL, February 1996, Vol. 79(2)
Magazine articles
Shop talk: reducing voc emissions with thermal oxidation units, TAPPI JOURNAL, December 1997, Vol. 80(12)
Shop talk: reducing voc emissions with thermal oxidation units, TAPPI JOURNAL, December 1997, Vol. 80(12)
Magazine articles
Dealing with localized corrosion of paper machine felt-roll journals, TAPPI JOURNAL, October 1994, Vol. 77(10)
Dealing with localized corrosion of paper machine felt-roll journals, TAPPI JOURNAL, October 1994, Vol. 77(10)
Journal articles
Magazine articles
Three-dimensional pore structure visualization and character
Three-dimensional pore structure visualization and characterization of paper using X-ray computed tomography, TAPPI JOURNAL September 2017
