CLC number: TK124
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2012-11-16
Cited: 1
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Jin-cai Du, Qun-xing Huang, Jian-hua Yan. Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste[J]. Journal of Zhejiang University Science A, 2012, 13(12): 969-978.
@article{title="Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste",
author="Jin-cai Du, Qun-xing Huang, Jian-hua Yan",
journal="Journal of Zhejiang University Science A",
volume="13",
number="12",
pages="969-978",
year="2012",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1200168"
}
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%T Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste
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%A Qun-xing Huang
%A Jian-hua Yan
%J Journal of Zhejiang University SCIENCE A
%V 13
%N 12
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200168
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T1 - Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste
A1 - Jin-cai Du
A1 - Qun-xing Huang
A1 - Jian-hua Yan
J0 - Journal of Zhejiang University Science A
VL - 13
IS - 12
SP - 969
EP - 978
%@ 1673-565X
Y1 - 2012
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1200168
Abstract: Temperature is the most important parameter for the improvement of combustion efficiency and the control of pollutants. In order to obtain accurate flame temperatures in a rotary kiln incinerator using non-intrusive thermographic method, the effective flame emissivity was studied. A combined narrow- and wide-band model and Mie scattering method were used to calculate the radiative properties for gases and fly-ash particles under different combustion conditions. The effects of the air/waste ratio and fly-ash particles on the effective flame emissivity were discussed. The results of numerical calculations showed that the effective emissivity decreased from 0.90 to 0.80 when the air/waste ratio increased from 1.0 to 1.8, and the effect of the fly-ash particles was ignorable under the conditions discussed in this paper. Experimental measurement results indicated that the accuracy of the thermographic temperature measurements improved significantly if the setting of the flame emissivity was adjusted according to the air/waste ratio.
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