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Journal articles
Estimation of the S/G Ratios of the Lignins in Three Widely
Estimation of the S/G Ratios of the Lignins in Three Widely used North American Hardwoods, TAPPI JOURNAL July 2016
Journal articles
Corrosion Mnitoring and Root Cause Identification in High So
Corrosion Mnitoring and Root Cause Identification in High Solids Concentrators, TAPPI JOURNAL July 2016
Journal articles
Evaluation of Near-Drum Thinning Data in Recovery Boiler Gen
Evaluation of Near-Drum Thinning Data in Recovery Boiler Generating Bank Tubes, TAPPI JOURNAL July 2016
Journal articles
A comparative study of enzymatic and Fenton pretreatment app
A comparative study of enzymatic and Fenton pretreatment applied to a birch kraft pulp used for MFC production in a pilot scale high-pressure homogenizer, TAPPI JOURNAL June 2016
Journal articles
Effects of cellulosic nanofibrils on papermaking properties
Effects of cellulosic nanofibrils on papermaking properties of fine papers, TAPPI JOURNAL June 2016
Journal articles
Editorial: 2015 Pulping, Engineering, Environmental
Editorial: 2015 Pulping, Engineering, Environmental, Recycling and Sustainability (PEERS): Sustainable Solutions for Our Future, TAPPI JOURNAL March 2016
Journal articles
Potential of C. citriodora wood species for kraft pulp
Potential of C. citriodora wood species for kraft pulp production, TAPPI JOURNAL March 2016
Journal articles
Formation of blue deposits in kraft recovery boilers
Formation of blue deposits in kraft recovery boilers, TAPPI JOURNAL March 2016
Journal articles
Magazine articles
Editorial: Kathleen Bennett: Opportunities for paper are pro
Editorial: Kathleen Bennett: Opportunities for paper are proliferating, TAPPI JOURNAL May 2016
Magazine articles
Leveraging mill-wide big data sets for process and quality i
Authors: Jianzhong Fu and Peter W. Hart | ABSTRACT: The MWV mill in Covington, VA, USA, experienced a long term trend of increasing episodes of paper indents that resulted in significant quantities of internal rejects and production downtime. When traditional troubleshooting techniques failed to resolve the problem, big data analysis techniques were employed to help deter-mine root causes of this negative and increasingly frequent situation. Nearly 6000 operating variables were selected for a deep dive, multi-year analysis after reviewing mill-wide process logs and 60000+ PI tags (data points) collected from one of the major data historian systems at the MWV Covington mill. Nine billion data points were collected from November 2011 to August 2014. Strategies and methods were developed to format, clean, classify, and sort the various data sets to compensate for process lag time and to align timestamps, as well as to rank potential causes or indicators. GE Intelligent Platforms software was employed to develop decision trees for root cause analysis. Insights and possible correlations that were previously invisible or ignored were obtained across the mill, from pulp-ing, bleaching, and chemical recovery to the papermaking process. Several findings led the mill to revise selected process targets and to reconsider a step change in the drying process. These changes have exhibited significant impacts on the mill’s product quality, cost, and market performance. Mill-wide communications of the identified results helped transform the findings into executable actions. Several projects were initiated.