270422 Effect of Engulfing Fire to Thermal Decomposition of Type III Composite Cylinder

Wednesday, October 31, 2012
Hall B (Convention Center )
Jae Hun Lee, Safety Research Devision, Institute of Gas safety R&D, Gyeonggi-do, South Korea and Hyo Kim, University of Seoul, Seoul, South Korea

 MACROBUTTON MTEditEquationSection2 Equation Chapter 1 Section 1 SEQ MTEqn \r \h \* MERGEFORMAT  SEQ MTSec \r 1 \h \* MERGEFORMAT  SEQ MTChap \r 1 \h \* MERGEFORMAT The characteristics of the thermal decomposition of composite cylinder has been thoroughly investigated when it is exposed to a engulfing fire. In the computations, one-dimensional heat transfer model and the Arrhenius type kinetic equations are incorporated to construct the robust framework for predicting the surface recession profile of the cylinder wall. An experiment was conducted to measure in surface temperatures and internal pressure of a commercial composite cylinder that was exposed to engulfing fire. The cylinder used in the experiment is a Type NGV composite cylinder which was manufactured with epoxy/carbon fiber by the hoop and helical winding methods. The cylinder liner is made of aluminum alloy, and glass bulb type TPRD is built in the cylinder valve. An engulfing fire test was conducted with kerosene on a NGV composite cylinder. Surface recession depth profiles were calculated using surface temperature data obtained from the experimental results, and they were compared with the time dependent pressure change.

Figure 1. Photograph of engulfing fire test.

Key words: Composite cylinder, Thermal Decomposition, Surface Recession, Engulfing Fire

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See more of this Session: Poster Session: Sustainability and Sustainable Biorefineries
See more of this Group/Topical: Sustainable Engineering Forum