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Details van artikel 9 van 15 gevonden artikelen
| Titel: |
INTERNAL WALL COOLING IN PRESSURE VESSELS EXPOSED TO EXTERNAL FIRE IMPINGEMENT |
| Auteur: |
Birk, A.M. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 80 (1989) nr. 1 pagina's 153-171 |
| Jaar: |
1989-06-01 |
| Inhoud: |
In many applications there is a requirement to retard accidental heating of pressure vessel shells so that loss of pressure carrying capacity due to increasing shell temperature does not occur. For example, hazardous commodity transport and storage vessels are usually thermally insulated so that in the event of accidental fire the shell is not exposed to the full heating effects of the fire. The present paper deals with a concept device that cools the walls of tanks carrying pressurized liquids by directing 2-phase fluid along the inner surface of the tank when the tank pressure relief valve is in action. Preliminary experimental results are presented for the case of a short cylindrical tank with the cooling device installed. From the limited tests conducted it was shown that the device cools areas of the tank wall that would normally have been exposed to the full heating effects of the fire. Based on observations from the tests a simple model was formulated and integrated with an existing tank-in-fire computer model. Simulation results indicate that internal wall cooling could be effective at reducing the risk of thermal ruptures of tanks. The simulation results for internally cooled tanks are compared with simulations and experimental data for an uninsulated tank filled with propane exposed to engulfing fires |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 15 gevonden artikelen
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