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- E-ISSN 2288-8985
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- E-ISSN2288-8985
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Evaluation of the combustion chamber for burning candle and measuring the emission factor of its’ combustion products
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2015, v.28 no.3, pp.236-245
https://doi.org/10.5806/AST.2015.28.3.236
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(2015). Evaluation of the combustion chamber for burning candle and measuring the emission factor of its’ combustion products. Analytical Science and Technology, 28(3), 236-245, https://doi.org/10.5806/AST.2015.28.3.236
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Abstract
Recently, candles have been widely used to create a romantic atmosphere and to heat tea. In this study, a small combustion chamber for candle was designed using an 0.008 m3 bell jar. The emission factors of combustion products were then measured. The combustion chamber includes a glass dish, which prevents candle flame from affecting the composition of the gas emitted through the exhaust outlet. The outlet in the combustion chamber was designed as a cone shape, and it was lengthened to prevent flow from the outside, which could affect the homogeneous composition of the exhaust gas. The temperature at the outlet of the chamber was 34 oC~41 oC. The major combustion products of the candle, such as such aldehydes and acids, contained oxygen. The mass specific emission rates of benzene, toluene, ethylbenzene, and TVOC were 0.04 μg/g, 0.01 μg/ g, 0.02 μg/g, and 3.81, respectively. The mass specific emission rates of formaldehyde, acetaldehyde and benzaldehyde were 4.48 μg/g, 1.09 μg/g, and 0.67 μg/g, respectively. Considering the different compositions of the candle samples, their mass specific emission rates were similar to those obtained by using a large chamber 0.17 m3~50 m3 in size
- keywords
- candle, combustion chamber, emission factor, volatile organic compound, aldehyde
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