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- W9587213 abstract "A sitewide study of a Kraft pulp and paper mill operated by Port Townsend Paper Corp. identified projects to reduce energy costs by $1.0 million annually while accommodating a 30% increase in plant capacity. The study, using advanced process analysis techniques known as pinch technology,'' found cost-effective applications for improved evaporator integration and enhanced process heat recovery. Payback would beless than two years. Assisted by Bonneville Power Administration, the project team visited the Port Townsend mill to define and collect process and utility data, using a spreadsheet model of mill heat and material balance to reconcile data inconsistencies. They used pinch technology techniques to characterize the mill's heating and cooling needs and to quantify the scope of potential improvements. Modified heat recovery networks were defined and their cost-benefits were established. The project team also analyzed the mill's utility system and assessed available cogeneration options. The study identified four process integration opportunities that meet the mill's technical and investment criteria. The opportunities fall into two groups: improved evaporator integration and enhanced mill water heat recovery. Implemented as a group,the projects offer energy savings of $1.0 million annually. The required capital investment of $1.7 million gives a payback of less than twomore » years. Purchased power would increase modestly due to process steam savings and the resultant decrease in cogenerated power.« less" @default.
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- W9587213 date "1992-12-01" @default.
- W9587213 modified "2023-09-26" @default.
- W9587213 title "Pinch technology/process optimization" @default.
- W9587213 hasPublicationYear "1992" @default.
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