Journal
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
Volume 26, Issue 1, Pages 177-185Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jlp.2012.10.006
Keywords
Tetrafluoroethylene; Decomposition; Self-ignition; Adiabatic compression
Categories
Funding
- Association of Plastic Manufacturers in Europe (PlasticEurope) [VH 2509]
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This work investigates the ignition of tetrafluoroethylene induced by the adiabatic compression that can arise by activating a high speed valve separating two portions of a pipeline with a high pressure difference. In the tests performed the high pressure zone contained tetrafluoroethylene at pressures between 15 and 30 bar. For the low pressure zone, experiments with nitrogen, air and tetrafluoroethylene were carried out. The pressure range in the low pressure zone was comprised between 0.05 and 1 bar. The pipe diameters analyzed were 15 and 20 mm. For the analyzed geometries, special conditions were required in order to reach reproducible ignitions, namely air at temperatures of at least 105 degrees C had to be present in the compression pipe. Furthermore, a minimum length of the compression pipe had to be used. The current work describes the experimental setup employed for the tests and discusses the achieved results. Numerical simulations were performed in order to clarify unexpected findings. (C) 2012 Elsevier Ltd. All rights reserved.
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