An Experimental Study on the Transportation Characteristics of Perfluoro(2-methyl-3-pentanone) in a Straight Pipe
Author:
Ni Xiaomin1, Chen Ye1, Huang Qiurui1, Zhao Chenxi1, Li Songyang2, Huang Jiahui2, Wang Jian1ORCID
Affiliation:
1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China 2. AECC Commercial Aircraft Engine Co., Ltd., Shanghai 200241, China
Abstract
Gaseous fire suppressants are usually stored in a vessel via pressurization, and then discharged out through pipelines. The flow behaviors of the agents in pipes greatly affect its dispersion in space, as well as the fire extinguishing results. Here, an experimental study was carried out on the transportation characteristics of perfluoro(2-methyl-3-pentanone) (C6F12O) in a horizontal straight pipe with the temperature and pressure recorded synchronously. At a filling pressure of 1800 kPa and a filling density of 517 kg·m−3, the agent release was completed in 2.0 s with the pipeline pressure peak of 1145 kPa and the pipeline temperature nadir of −10.6 °C. In comparison to that of bromotrifluoromethane (CF3Br) under the same conditions, the temperature and pressure curves of C6F12O exhibited similar varying trajectories but a much smaller amplitude, which could be ascribed to their different thermophysical properties. When keeping the other conditions unchanged, raising the filling pressure C6F12O reduces the discharge duration and the pipeline temperatures. Increasing the filling density extends the discharge duration, but shows little influence on the pipeline temperatures. The results were expected to provide useful information for the model validation and engineering design of a C6F12O fire-suppressing system with a predictable performance.
Funder
National Natural Science Foundation of China National Science and Technology Major Project Fundamental Research Funds for the Central Universities of China
Subject
Earth and Planetary Sciences (miscellaneous),Safety Research,Environmental Science (miscellaneous),Safety, Risk, Reliability and Quality,Building and Construction,Forestry
Reference21 articles.
1. Xing, H., Lu, S., Yang, H., and Zhang, H. (2022). Review on Research Progress of C6F12O as a Fire Extinguishing Agent. Fire, 5. 2. 3M Company (2020). 3MTM Novec1230TM Fire Protection Fluid, 3M Company. 3. Thermodynamic Properties of 1,1,1,2,2,4,5,5,5-Nonafluoro-4-(trifluoromethyl)-3-pentanone: Vapor Pressure, (p, ρ, T) Behavior, and Speed of Sound Measurements, and an Equation of State;Mclinden;J. Chem. Eng. Data,2015 4. Kim, A., Crampton, G., and Kanabus-Kaminska, M. (2010). Performance of Novec1230 in Electronic Facility Fire Protection, NRCC-53526. 5. Hydrocarbon Flame Inhibition by C6F12O (Novec 1230): Unstretched Burning Velocity Measurements and Predictions;Pagliaro;Fire Saf. J.,2017
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