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Journal articles
Open Access
Automated control of washer shower water at ITT Rayonier, TAPPI JOURNAL March 1988

Automated control of washer shower water at ITT Rayonier, TAPPI JOURNAL March 1988

Journal articles
Open Access
The effects of chip blending of Pinus radiata kraft pulp, September 1988 TAPPI Journal 88SEP89

The effect of chip blending on Pinus radiata kraft pulp, TAPPI JOURNAL September 1988

Journal articles
Open Access
Split addition of chlorine and pH control for reducing formation of dioxins, TAPPI JOURNAL December 1989 89DEC121

Split addition of chlorine and pH control for reducing formation of dioxins, TAPPI JOURNAL December 1989

Journal articles
Open Access
Brightness stability of mechanical pulps-Relating laboratory data to performance, TAPPI JOURNAL December 1989

Brightness stability of mechanical pulps-Relating laboratory data to performance, TAPPI JOURNAL December 1989

Journal articles
Open Access
Effect of raw-material stabilization on adhesive quality, TAPPI JOURNAL December 1989 89DEC71

Effect of raw-material stabilization on adhesive quality, TAPPI JOURNAL December 1989

Journal articles
Open Access
Hot melts in pressure-sensitive and heat-seal applications, TAPPI JOURNAL December 1989 89DEC79

Hot melts in pressure-sensitive and heat-seal applications, TAPPI JOURNAL December 1989

Journal articles
Open Access
Wet-end profiling via ultrasonic measurement, TAPPI JOURNAL January 1989

Wet-end profiling via ultrasonic measurement, TAPPI JOURNAL January 1989

Journal articles
Open Access
The effects of a sludge containing dioxin on wildlife in pine plantations, TAPPI JOURNAL January 1989

The effects of a sludge containing dioxin on wildlife in pine plantations, TAPPI JOURNAL January 1989

Journal articles
Magazine articles
Open Access
Viscoelastic web curl due to storage in wound rolls, TAPPI Journal July 2020

ABSTRACT: Winding is often the final operation in a roll-to-roll manufacturing process. Web materials, i.e., materials that are thin compared to their length, are wound into rolls because this form is the only practical means to store them. The resulting bending strains and associated stresses are large for thick webs and laminates. As many webs are viscoelastic on some time scale, bending stresses lead to creep and inhomogeneous changes in length. When the web material is unwound and cut into discrete samples, a residual curvature remains. This curvature, called curl, is the inability for the web to lie flat at no tension. Curl is an undesirable web defect that causes loss of productivity in a subsequent web process. This paper describes the development and implementation of modeling and experimental tools to explore and mitigate curl in homogenous webs. Two theoretical and numerical methods that allow the prediction of curl in a web are developed: a winding software based on bending recovery theory, and the implementation of dynamic simula-tions of winding. One experimental method is developed that directly measures the curl online by taking advantage of the anticlastic bending resulting from the curl. These methods are demonstrated for a low-density polyethylene web.

Journal articles
Magazine articles
Open Access
Case study: Paper mill power plant optimization—balancing steam venting with mill demand, TAPPI Journal June 2020

ABSTRACT: Most Power departments are tasked with generating steam to support mill wide operations, generate electricity, and reduce operating costs. To accomplish these tasks, power boilers generate high pressure steam that is reduced to intermediate and low pressures for process utilization in the mill by means of steam turbine generator extraction or pressure reducing valves. The most economical method to reduce steam pressure is the use of steam turbine generators, as electricity is generated from the steam when it is reduced in pressure. Electricity that is produced by these generators provides a substantial financial benefit and helps offset overall operational costs. To achieve tangible financial gains, the mill must evaluate the overall cost of steam production and the price of electricity.The current work provides a case study of power plant optimization that evaluated electricity production and steam production costs balanced with mill steam demand. Process and cost optimization led to a significant reduc-tion in low pressure steam venting, resulting in reduced fuel consumption and reduced operating cost.

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