Welded joints as critical regions in pressure vessels -case study of vinyl-chloride monomer storage tank
| Autor: | Emil Veg, Aleksandar Sedmak, Snezana Kirin, Tamara Golubović, Vesna Spasojević-Brkić |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
General Chemical Engineering 020101 civil engineering Worst-case scenario 02 engineering and technology Welding lcsh:Chemical technology Vinyl chloride 0201 civil engineering law.invention chemistry.chemical_compound 0203 mechanical engineering risk matrix law Critical point (thermodynamics) lcsh:TP1-1185 welded joint Failure assessment Operating point structural integrity business.industry technology industry and agriculture General Chemistry Structural engineering Pressure vessel 020303 mechanical engineering & transports chemistry Storage tank heterogeneous material business |
| Zdroj: | Hemijska Industrija, Vol 72, Iss 4, Pp 177-182 (2018) |
| ISSN: | 2217-7426 0367-598X |
| DOI: | 10.2298/hemind171009006g |
| Popis: | Welded joints are analysed as critical regions in a pressure vessel in respect to structural failure due to the elastic-plastic fracture/crack growth. To assess structural integrity of pressure vessels used in chemical industry the risk based procedure has been introduced and applied in the case of a large spherical pressure vessel used as a vinyl-chloride monomer (VCM) storage tank in HIP Azotara Pančevo. The risk matrix has been used, taking into account the basic definition of risk, being the product of the probability and consequence, and applied to different regions of welded joints, having different mechanical properties, i.e. crack resistance. To estimate probability, the failure assessment diagram (FAD) has been used, as an engineering tool, defined according to the position of the operating point for different regions of the welded joint, relative to the critical point on the limit curve. Generally speaking, consequence is estimated based on pressure vessel parameters, or by detailed analysis of health, safety, business and security issues, but in the analysed case, the worst case scenario is assumed, with the highest consequence due to potential disaster for environment and fatalities. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR 33044 and Grant no. 35017] |
| Databáze: | OpenAIRE |
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