NEN EN 12952-4 : 2011
Current
The latest, up-to-date edition.
WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 4: IN-SERVICE BOILER LIFE EXPECTANCY CALCULATIONS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 General
6 Calculations
Annex A (informative) Calculation of in-service creep
damage
A.1 - General
A.2 - Symbols and abbreviations
A.3 - Calculation of in-service lifetime and creep
damage
Annex B (informative) Calculation of in-service fatigue
damage
B.1 - General
B.2 - Symbols and abbreviations
B.3 - Calculation of stress due to fatigue
B.4 - Detection of extreme values of stress
B.5 - Detection of load cycles
B.6 - Remaining sequence of relative extreme (RSE)
B.7 - Limitation of the number of the remaining
extremes
B.8 - Classification of load cycles
B.9 - Calculation of fatigue damage
B.10 - Accuracy and plausibility of the measured
values
Bibliography
Defines procedures for calculating the creep and/or the fatigue damage of boiler components during operation. Pertains to water-tube boilers as defined in EN 12952-1:2001.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 12952-4:2011 | Identical |
| EN 12952-4:2011 | Identical |
| I.S. EN 12952-4:2000 | Identical |
| DIN EN 12952-4:2011-10 | Identical |
| UNE-EN 12952-4:2012 | Identical |
| UNI EN 12952-4 : 2011 | Identical |
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