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Developing a Life-Cycle Cost Analysis Framework to Evaluate the Cost-Effectiveness of Hydroelectric

Picture for Developing a Life-Cycle Cost Analysis Framework to Evaluate the Cost-Effectiveness of Hydroelectric
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The theoretical framework shown here includes a spreadsheet tool designed to accommodate all unique inputs and accounts for the time-value of money. It offers several output options, including the equivalent uniform annual cost, to aid decision makers in selecting coating systems.

Product Number: 51317--9099-SG
ISBN: 9099 2017 CP
Author: Bobbi Jo Merten
Publication Date: 2017
Industry: Energy Generation
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$20.00
$20.00

The Bureau of Reclamation utilized protective coatings to maximize reliability and useful life for its water infrastructure. Steel hydroelectric penstock pipes received long-lasting coatings during construction. These coatings are reaching the end of their service life and require recoating. Stricter regulations shifted today’s recoating specifications to less harmful systems, which vary in initial coating costs, periodic maintenance, and service life. For expensive penstock recoating projects, the challenge is in determining the most cost-effective coating system.

A life-cycle cost (LCC) analysis framework was developed for cost comparison of competing coating systems. This analysis is particularly suitable for determining whether the higher initial cost of a coating system is economically justified by reductions in future costs, e.g., maintenance, repair, or replacement costs. The theoretical framework shown here includes a spreadsheet tool designed to accommodate all unique inputs and accounts for the time-value of money. It offers several output options, including the equivalent uniform annual cost, to aid decision makers in selecting coating systems. A sensitivity analysis is also provided to demonstrate the effect of modifying principal variables, such as discount rate and coating service life.

Key words: Cost of corrosion control, life-cycle cost, penstock relining, protective coatings, coatings maintenance, coating selection, theoretical framework

The Bureau of Reclamation utilized protective coatings to maximize reliability and useful life for its water infrastructure. Steel hydroelectric penstock pipes received long-lasting coatings during construction. These coatings are reaching the end of their service life and require recoating. Stricter regulations shifted today’s recoating specifications to less harmful systems, which vary in initial coating costs, periodic maintenance, and service life. For expensive penstock recoating projects, the challenge is in determining the most cost-effective coating system.

A life-cycle cost (LCC) analysis framework was developed for cost comparison of competing coating systems. This analysis is particularly suitable for determining whether the higher initial cost of a coating system is economically justified by reductions in future costs, e.g., maintenance, repair, or replacement costs. The theoretical framework shown here includes a spreadsheet tool designed to accommodate all unique inputs and accounts for the time-value of money. It offers several output options, including the equivalent uniform annual cost, to aid decision makers in selecting coating systems. A sensitivity analysis is also provided to demonstrate the effect of modifying principal variables, such as discount rate and coating service life.

Key words: Cost of corrosion control, life-cycle cost, penstock relining, protective coatings, coatings maintenance, coating selection, theoretical framework

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Expected Service Life and Cost Considerations for Maintenance
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51318-10673-Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work

Product Number: 51318-10673-SG
Author: Jayson L. Helsel, P.E. / Robert Lanterman
Publication Date: 2018
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An update to “Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work” 2016. Identifying candidate protective coating systems for specific environments.
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06318 EXPECTED SERVICE LIFE AND COST CONSIDERATIONS FOR MAINTENANCE AND NEW CONSTRUCTION PROTECTIVE COATING WORK

Product Number: 51300-06318-SG
ISBN: 06318 2006 CP
Author: Jayson L. Helsel, Michael F. Melampy, Kirk Wissmar
Publication Date: 2006
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This paper is a significant update to “Costing Considerations for Maintenance and New Construction Coating Work”1 on protective coating costing and selection co-authored by M. F. Melampy, M. P. Reina and K. R. Shields in 1998. Designed to assist the coatings engineer or specifier in identifying suitable protective coating systems for specific industrial environments.
Picture for Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coatin
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51316-7422-Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work

Product Number: 51316-7422-SG
ISBN: 7422 2016 CP
Author: Jayson Helsel
Publication Date: 2016
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Update to “Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work” - NACE Corrosion 2014.Designed to assist the coatings engineer or specifier in identifying candidate protective coating systems for specific industrial environments.
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