کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
667881 1458718 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling heat transfer and pressure build-up in LPG vessels exposed to fires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Modeling heat transfer and pressure build-up in LPG vessels exposed to fires
چکیده انگلیسی
Fire exposure of pressurized tanks may lead to their catastrophic rupture due to internal pressure build-up and reduction of allowable stress of the metallic shell due to temperature increase. Hence, the assessment of the thermal behavior of pressurized equipment exposed to fires is a critical issue to prevent the escalation of accident scenarios in the process industry. The present study was aimed at comparing two modeling approaches for the assessment of the heat transfer in pressurized vessels exposed to fire. In particular, two simplified lumped models based on thermal nodes were compared with a CFD (computational fluid dynamics) model implemented on ANSYS FLUENT. The models were aimed at reproducing the initial phase of the vessel heat-up, before the opening of the pressure relief valve (PRV). The models were applied to case studies of industrial interest in order to assess the expected internal pressure build-up in different fire scenarios. The comparison among model results confirmed the importance of the use of advanced simulation tools for a more precise assessment of failure conditions of vessels engulfed in fires.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 104, June 2016, Pages 228-244
نویسندگان
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