A Chi-Square Distribution Based Steady-State Data Judgment Criterion

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The acquisition of steady-state data is the premise for optimizing the boiler combustion parameters. Assuming the measuring parameters obey the Gaussion distribution, this paper uses the large-probability distribution interval to approximate the variation range of random variable, constructs appropriate working condition matrix whose column quadratic sum approximately obeys the Chi-square distribution, and then obtains the Chi-square distribution based steady-state data judgment criterion. The judgment threshold of this criterion could be self-adaptive. This judgment criterion has been validated by an experiment.

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724-729

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July 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Wang Peihong, Li Leilei, Chen Qiang et al. Optimal algorithm research on high efficiency and low emission combustion of coal-fired boiler [J]. Power Engineering, 2004, 24(4)_4.

Google Scholar

[2] Zhou Jiangxin, Fan Zhengbing, Si Fengqi et al. A review about the development of boiler combustion optimization technology [J]. Boiler Technology, 2008, 39 (5) _5.

Google Scholar

[3] Li Zhihong. Visual method of flame's development and application [D]. Institute of Engineering Thermophysics, Cas, (2006).

Google Scholar

[4] S.C. Hill1, L. Douglas Smoot, Modeling of nitrogen oxides formation and destruction in combustion systems [J], Progress in Energy and Combustion Science, 26(2000).

DOI: 10.1016/s0360-1285(00)00011-3

Google Scholar

[5] Gao Daqi, Wushou Yi. An optimization method for the topological structures of feed-forward multi-layer neural networks [J], Pattern Recognition, 1998(31): 1337-1342.

DOI: 10.1016/s0031-3203(97)00160-x

Google Scholar

[6] Wang Peihong, Li Leilei, Chen Qiang et al. Research on applications of artificial intelligence to combustion optimization in a coal-fired boiler [J]. Proceedings of Chinese Society for Electrical Engineering, 2004, 24 (4) _5.

Google Scholar

[7] U. schnell, M. kaess, H. Brodbek, Experimental and numerical investigation of NOx formation and its basic interdependencies on pulverized coal flame characteristics[J], Combustion science and technology, (1993).

DOI: 10.1080/00102209308935284

Google Scholar

[8] J.O. Lwendt, Mechanisms governing the formation and destruction of NOx and other Nitrogenous species in Low NOx coal combustion systems[J], Combustion science and technology, (1995).

DOI: 10.1016/s0140-6701(97)80348-7

Google Scholar

[9] Sheng J, Xie S Q. Probability and statistics [M]. Higher Education Press, (2008).

Google Scholar