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Friday, May 1, 2009

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Vaccum hazard is potentially a hazard and damaging factor to many pressure vessel. Vacuum should be addressed and extra caution to be taken during design, construction, operation and maintenance to avoid catastrophic failure.

In previous posts, "Vacuum Hazard - Another Catastrophic Factor..." discussed about the damage of vacuum, main factors resulting Vacuum and several scenario may lead to Vacuum Hazard. "4-steps Approach to Combat Vacuum Hazard" discuss about approach may be taken to minimize and avoid Vacuum Hazard. "How powerful is ATMOSPHERIC ?" also has presented a video clip demonstrates how powerful is ATMOSPHERIC pressure and how quick a "vessel" collapse.

This post will share a screen shot of rail car collapsed due to vacuum condition. The rail car had been steamed out and remained hot inside when it started to rain. Quick cooling due to rain running on the rail car and lead to generation of vacuum.




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posted by Webworm, 2:16 PM

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