Effect of pool fire scale of heavy fuel oil on the characteristics of PAH emissions
| Autor: | Hui-Tsung Hsu, Kuang-Chung Tsai, Chin-Hsing Lai, Ching-Ho Lin, Peter Brimblecombe, Shu-Hsing Yeh, Chi-Fu Yeh, Li-Hsin Cheng, Ming-Jen Chen, Tzu-Ping Tseng, Li-Jen Huang, Pei-Fang Lee |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Scale (ratio)
020209 energy General Chemical Engineering Organic Chemistry Energy Engineering and Power Technology 02 engineering and technology Fuel oil Atmospheric sciences Combustion Linear function Fire accident Fuel Technology 020401 chemical engineering Heat flux Range (aeronautics) Storage tank 0202 electrical engineering electronic engineering information engineering Environmental science 0204 chemical engineering |
| Zdroj: | Fuel. 235:933-943 |
| ISSN: | 0016-2361 |
| Popis: | A series of pilot-scale pool test fires simulated an idealized fire accident in a storage tank containing low-sulfur No. 6 heavy fuel oil (LSFO6). This work demonstrates that the combustion characteristics of LSFO6 and shows that fire-related emission factors (EFs) of 16 USEPA PAHs during pool fires very much depend on the scale of oil pan diameter (D). Over the range studied (D = 20–60 cm), the combustion characteristics, (i) fuel mass loss rate, (ii) heat flux and (iii) ratio of CO/CO2 as time-weighted averages have positive linear relationships with D, but the combustion efficiency is a negative linear function of D. The sum of 16 PAH EFs has a negative linear function of D, while the overall vapor-particulate partitioning coefficient of 16 PAHs has a positive linear function of D. Most benzo(a)pyrene-toxic equivalents (BaPeq) for a given pool scale arise from high-molecular-weight PAHs. However, the maximum total BaPeq occurs at pool fire scale of D = 40 cm. The scale of burning causes no significant variation in PAH source identifications in terms of the defined molecular diagnostic ratios. Further researches on large-scale pool test fires are needed to validate whether the applicability of pilot-scale studies will be acceptable to the relevant oil tank fires in industries. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect