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Abstract

The paper considers methods by which professional engineering designers can beneficially influence plant maintainability. It is proposed that maintainability be treated as a design variable and incorporated into analysis procedures. Design analysis methods are described, based on value theory, by which quantitative assessments may be made using subjective value judgements. Design management practice has a significant influence on the eventual maintainability of plant. Maintainability requirements need to be understood and sufficient time provided to solve problems during the design phase. Specifically, the paper discusses design review methodology, design contractual agreements incorporating maintainability clauses and quality assurance. Good plant maintainability cannot be achieved without an imaginative approach and careful attention to detail during product design. General principles are given and illustrated by a process valve design study with respect to maintainability. Other examples are cited.

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The Improvement of Plant Maintainability Through Design

Abstract

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References