Structural integrity and petrochemical industry

May, Iain

doi:10.1179/174892309x12519750237672

Cited by 3 publications

(3 citation statements)

References 1 publication

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“…In this study, the "Heat Transfer" physics was used by choosing the heat transfer in porous media library added into the model. The time-dependent heat transfer in the solid interface was numerically computed by solving the heat equation and the momentum balance equation [40,41], as shown in Equation (1).…”

Section: Heat Transfer In Concrete Slabmentioning

confidence: 99%

“…Many of such tanks are made of materials susceptible to corrosion (and erosion) at the contact zone where the phase of materials changes from liquid to gas, and vice versa. As a result of these drastic changes, serious incidents (or 'accidents') have been reported in tanks in the past [1]. Most of the storage tanks at petrochemical plants in Thailand are built on thick reinforced concrete (RC) foundations.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

et al. 2022

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This article presents a case study on the thermal assessment of a reinforced concrete (RC) foundation exposed to low temperatures. The foundation supports a 19,500 m3-capacity tank with low-temperature (−89 °C) ethane. Icing and bubbling were observed on the tank’s surface soon after it started operations. Condensation was also observed at the bottom of the 0.8-m-depth RC slab, which raised concerns about the structural condition of the concrete. This study provides details of the field and analytical investigations conducted to assess the structural condition of the foundation. Heat transfer finite element (FE) analyses were performed to examine the concrete sections subjected to low temperatures. It was found that the ethane leakage produced a low temperature on the top side of the concrete foundation of +9.7 °C. Overall, the temperatures calculated by the FE analyses were in good agreement with actual field measurements, within a ±5% accuracy. The simplified heat transfer equation for porous media used in this study was sufficiently accurate to model the effects of the ethane leakage in the concrete foundation, provided that the ambient temperature at the site is taken into account in the analysis. The results also confirm that reinforcing bars can be neglected in the thermal analysis of massive concrete slabs. The results from the field measurements and FE analyses confirmed that the structural integrity of the RC foundation was never compromised. The approaches, methods and techniques discussed in this article are deemed suitable to solve the practical and scientific challenges involved in the thermal assessment and repairs of large special structures. Accordingly, they can serve as useful reference and guidance for engineers and practitioners working in the field of forensic engineering.

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Section: Heat Transfer In Concrete Slabmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Many of such tanks are made of materials susceptible to corrosion (and erosion) at the contact zone where the phase of materials changes from liquid to gas, and vice versa. As a result of these drastic changes, serious incidents (or 'accidents') have been reported in tanks in the past (Le May 2008). Most of the storage tanks at petrochemical plants in Thailand are built on thick reinforced concrete (RC) foundations.…”

Section: Introductionmentioning

confidence: 99%

Thermal Integrity Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

Wattanapanich¹,

Imjai²,

Aosai³

et al. 2022

Preprint

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This article presents a case study on the structural assessment of a reinforced concrete (RC) foundation exposed to low temperatures. The foundation supports a 19,500 m³-capacity tank with low-temperature (-89°C) ethane. Icing and bubbling were observed on the tank’s surface soon after it started operations. Condensation was also observed at the bottom of the 0.8 m-depth RC slab, which raised concerns about the structural condition of the concrete. This study provides details of the field and analytical investigations conducted to assess the structural condition of the foundation. Heat transfer finite element (FE) analyses were performed to examine the concrete sections subjected to low temperatures. It was found that the ethane leakage produced a low temperature on the top side of the concrete foundation of +9.7°C. Overall, the temperatures calculated by the FE analyses were in good agreement with actual field measurements, within a ±5% accuracy. The simplified heat transfer equation for porous media used in this study was sufficiently accurate to model the effects of the ethane leakage in the concrete foundation, provided the ambient temperature at the site is taken into account in the analysis. The results also confirm that reinforcing bars can be neglected in the thermal analysis of massive concrete slabs. The results from the field measurements and FE analyses confirmed that the structural integrity of the RC foundation was never compromised. The approaches, methods and techniques discussed in this article are deemed suitable to solve the practical and scientific challenges involved in the structural assessment and repairs of large special structures. Accordingly, they can serve as useful reference and guidance for engineers and practitioners working in the field of forensic engineering.

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Combinatorial optimization of petrochemical plants by asset integrity management indicators

Sheikhalishahi

Karimi

Raghebi

2019

Process Safety and Environmental Protection

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Structural integrity and petrochemical industry

Cited by 3 publications

References 1 publication

Thermal Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

Thermal Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

Thermal Integrity Analysis of a Raft Concrete Foundation: A Case Study of a Leaking Ethane Tank

Combinatorial optimization of petrochemical plants by asset integrity management indicators

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