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LNG Tanks exposed to distant pool fires: A cfd study
Liquefied natural gas (LNG) is a viable, environmental-friendly alternative marine fuel. Several LNG-fueled vessels are already operating, and the LNG market is expected to grow further in the next years. A capillary marine LNG infrastructure network is developing to strengthen the fuel supply chain, which includes smallscale LNG storage and bunkering installations. However, safety remains a crucial aspect for the expansion of sustainable and reliable LNG technologies due to flammability hazards of natural gas. Storage tanks are vulnerable units from a safety point of view: External fires might affect LNG tanks leading to their catastrophic failure with a possibility of accident escalation. The present contribution aims at the evaluation of thermal response of storage tanks exposed to high levels of thermal radiation from distant sources, such as a pool fires generated after the ignition of LNG spills. A two-dimension computational fluid dynamic (CFD) approach is applied to predict tank pressurization rate and temperature distribution for a set of case studies. The results obtained give insight about the dynamic response of pressurized cryogenic vessels involved in process accidents, providing a useful contribution to emergency response planning as well as identifying important safety aspects regarding LNG storage and distribution chain.
LNG Tanks exposed to distant pool fires: A cfd study
Liquefied natural gas (LNG) is a viable, environmental-friendly alternative marine fuel. Several LNG-fueled vessels are already operating, and the LNG market is expected to grow further in the next years. A capillary marine LNG infrastructure network is developing to strengthen the fuel supply chain, which includes smallscale LNG storage and bunkering installations. However, safety remains a crucial aspect for the expansion of sustainable and reliable LNG technologies due to flammability hazards of natural gas. Storage tanks are vulnerable units from a safety point of view: External fires might affect LNG tanks leading to their catastrophic failure with a possibility of accident escalation. The present contribution aims at the evaluation of thermal response of storage tanks exposed to high levels of thermal radiation from distant sources, such as a pool fires generated after the ignition of LNG spills. A two-dimension computational fluid dynamic (CFD) approach is applied to predict tank pressurization rate and temperature distribution for a set of case studies. The results obtained give insight about the dynamic response of pressurized cryogenic vessels involved in process accidents, providing a useful contribution to emergency response planning as well as identifying important safety aspects regarding LNG storage and distribution chain.
LNG Tanks exposed to distant pool fires: A cfd study
Iannaccone T. (author) / Scarponi G. E. (author) / Landucci G. (author) / Cozzani V. (author) / Iannaccone T. / Scarponi G.E. / Landucci G. / Cozzani V.
2020-01-01
Article (Journal)
Electronic Resource
English
LNG , Process Safety , CFD
DDC:
690
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