Authors:
C. Lin National Yunlin University of Science and Technology (NYUST) Doctoral Program, Graduate School of Engineering Science and Technology 123, University Rd., Sec. 3 Douliou, Yunlin Taiwan 64002 Republic of China

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Y. Chang National Yunlin University of Science and Technology (NYUST) Doctoral Program, Graduate School of Engineering Science and Technology 123, University Rd., Sec. 3 Douliou, Yunlin Taiwan 64002 Republic of China

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J. Lee NYUST Department of Safety, Health, and Environmental Engineering 123, University Rd., Sec. 3 Douliou, Yunlin Taiwan 64002 Republic of China

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S. Lin NYUST Department of Safety, Health, and Environmental Engineering 123, University Rd., Sec. 3 Douliou, Yunlin Taiwan 64002 Republic of China

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C. Shu National Yunlin University of Science and Technology (NYUST) Doctoral Program, Graduate School of Engineering Science and Technology 123, University Rd., Sec. 3 Douliou, Yunlin Taiwan 64002 Republic of China

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Abstract  

Preventing accidental explosions of flammable liquid/gas mixtures is very important. As far as flammability characteristics are concerned, we simulated the effects of inert liquid/gas, which was filled with reactors, vessels, or closed space, employed in the chemical process industries. The inert liquid/gas (H2O) weakened the oxygen concentration and reduced solvent vapor concentration in a 20-L-Apparatus. This study investigated the flammability characteristics of acetone/water solutions (100/0, 75/25, 50/50, and 25/75 vol.%) that are controlled at a temperature of 150°C and pressures of 101/202 kPa, respectively. The flammability parameters included flammability limits (LEL and UEL), maximum explosion pressure (Pmax), maximum explosion pressure rise ((dP dt−1)max), and vapor deflagration index (Kg). The results of a series of experimental tests showed that UEL, Pmax, and Kg all decreased with steam rising under the experimental conditions. The results can be applied to process safety design/operation for identifying whether the inert liquid/gas (H2O) content has any substantial effects in reducing the fire and explosion hazard of the solution of interest.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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