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Corrosion-under-insulation (CUI) guidelines /
Corrosion-under-insulation (CUI) refers to the external corrosion of piping and vessels that occurs underneath externally clad/jacketed insulation as a result of the penetration of water. By its very nature CUI tends to remain undetected until the insulation and cladding/jacketing is removed to allo...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Cambridge :
Woodhead Publishing,
[2016]
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| Edición: | Revised edition. |
| Colección: | Woodhead Publishing in materials.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Corrosion-Under-Insulation (CUI) Guidelines: Revised Edition; Copyright; Contents; Volumes in the EFC series; Introduction; Chapter 1: Introduction; 1.1 Purpose of document; References; Chapter 2:Economic consideration; 2.1 Statistical analysis; 2.2 Size of the issue; 2.2.1 Safety and integrity; 2.2.2 Environment; 2.2.3 Revenue or production loss; 2.2.4 Reputation; 2.2.5 Collateral damage cost; 2.2.6 On-line leak sealing cost; 2.2.7 Repair/replacement, fabrication, and installation costs; 2.2.8 Fitness for continued service; 2.2.9 On-stream inspection and NDE/NDT
- 2.3 Key performance indicatorsChapter 3:Ownership and responsibility; 3.1 Senior management; 3.2 Engineering manager; 3.3 Maintenance; 3.4 Operations; 3.5 Inspection; 3.6 Members of a project team: CUI program; Chapter 4:The risk-based inspection methodology for CUI; 4.1 Introduction; 4.2 High-level prioritization; 4.2.1 Health & safety consequences (A); 4.2.2 Environmental consequences (B); 4.2.3 Economic consequences (C); 4.2.4 Impact on reputation (D); 4.3 Data validation; 4.3.1 The need for data validation; 4.3.2 Different aspects of a data validation
- 4.3.3 Implementation of data validation4.3.4 CUI and mothballing of equipment; 4.4 Challenging the need for insulation; 4.5 Using RBI to design CUI inspection plans; 4.5.1 Preparation of an RBI analysis; 4.5.2 Susceptibility factors; 4.5.2.1 Operating temperature; 4.5.2.2 Coating status; 4.5.2.3 Cladding/insulation condition; 4.5.2.4 Available corrosion allowance; 4.5.2.5 External coil/steam tracing; 4.5.2.6 External environment; 4.5.3 Qualitative RBI analysis; 4.5.4 Semiquantitative RBI analysis; 4.5.4.1 Consequence of CUI failure; 4.5.4.2 Probability of CUI failure
- 4.5.4.3 Risk of CUI failureReferences; Chapter 5:Inspection activities/strategy; 5.1 General considerations; 5.2 Typical locations on piping circuits susceptible to CUI; 5.3 Typical locations on equipment susceptible to CUI; 5.3.1 Vessels, columns, and tanks; 5.3.2 Heat exchangers; 5.4 Examples of risk-based inspection plans; 5.4.1 Evaluated risk level: High/extreme; 5.4.2 Evaluated risk level: Medium-high; 5.4.3 Evaluated risk level: Medium; 5.4.4 Evaluated risk level: Low; 5.4.5 Evaluated risk level: Negligible; Chapter 6:Nondestructive examination and testing techniques for CUI
- 6.1 NDE/NDT techniquesReferences; Chapter 7:Recommended best practice to mitigate CUI; 7.1 Background; 7.1.1 Key parameters; 7.1.2 Assumptions; 7.2 Current CUI prevention methods; 7.3 How to achieve a life expectancy of over 25 years; 7.3.1 CUI preventive measures: Recent approaches; 7.3.2 Material upgrade possibilities; 7.4 Benefits of TSA; 7.5 Use of personnel protective guards; 7.6 Use of aluminum foil to mitigate Cl-ESCC of austenitic stainless steel; References; Chapter 8:Design for the prevention of CUI; 8.1 Introduction; 8.2 Challenge the requirement for insulation