This article is about Stored Energy and Exclusion Zone Calculation Sheet of mechanical equipment and piping in plants and refinery projects.
Stored Energy and Exclusion Zone Calculation Sheet
The minimum safe distance base on ASME PCC-2-2008 Article 5.1, Mandatory Appendix III.
(a) R = 30m for E < 135,500,000J
(b) R = 60m for 135,500,000J <E < 271,000,000
(c) R considering.
Alternative value scaled consequence factor (Rscaled) based on Table III-1
Safe Distance = 84m.
Article 5.1, Mandatory Appendix II.
Stored Energy Calculations for Pneumatic Pressure Test
Article 5.1, Mandatory Appendix Ill
Safe Distance Calculations for Pneumatic Pressure Test
Lowest rated component.
Test Package is included the following components:
- Elbow
- Flange
- Blind Flange
- Pipe
- Return Bend
The lowest component is Flange.
Test Pressure of Flange: 31.1 BarG
However, pneumatic test pressure shall be determined as per SAES-L-150 Para.5.12.1 as follows:
Pneumatic test pressure is not determined by the lowest rated component.
The lowest component is Flange.
Test Pressure of Flange: 31.1 BarG.
However, pneumatic test pressure shall be determined as per SAES-L-150 Para.5.12.1 as follows:
Pneumatic test pressure is not determined by the lowest rated component.
<SAES-L-150 Para.5.12.1>
5.12.1 The instrument impulse lines, whether piping or tubing, between the root isolation valve and the instrument isolated shall be pneumatically pressure tested (using air or nitrogen) at 1.1 times the design pressure of the piping system or process equipment to which it is connected. The test duration shall not be less than 30minutes.