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	SDG-based HAZOP and fault diagnosis analysis to the inversion of synthetic ammonia
	Lu Ning ; Wang Xiong
	2010-05-06 ; 2010-05-06
关键词	Practical Experimental/ ammonia chemical hazards chemical industry diagnostic reasoning directed graphs fault diagnosis fertilisers hazardous materials/ signed directed graph SDG computer-aided hazard and operability study HAZOP fault diagnosis analysis synthetic ammonia inversion reasoning method inverse inference forward inference breadth-first algorithm/ C7480 Production engineering computing C6170K Knowledge engineering techniques C1160 Combinatorial mathematics E0210E Combinatorial mathematics E0240H Health and safety aspects E0410D Industrial applications of IT E1710 Engineering materials E3010 Agriculture E3626 Chemical industry
中文摘要	This paper presents some practical applications of signed directed graphs (SDGs) to computer-aided hazard and operability study (HAZOP) and fault diagnosis, based on an analysis of the SDG theory. The SDG is modeled for the inversion of synthetic ammonia, which is highly dangerous in process industry, and HAZOP and fault diagnosis based on the SDG model are presented. A new reasoning method, whereby inverse inference is combined with forward inference, is presented to implement SDG fault diagnosis based on a breadth-first algorithm with consistency rules. Compared with conventional inference engines, this new method can better avoid qualitative spuriousness and combination explosion, and can deal with unobservable nodes in SDGs more effectively. Experimental results show the validity and advantages of the new SDG method.
语种	英语 ; 英语
出版者	Editorial Board of J. of Tsinghua University ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/9309]
专题	清华大学
推荐引用方式 GB/T 7714	Lu Ning,Wang Xiong. SDG-based HAZOP and fault diagnosis analysis to the inversion of synthetic ammonia[J],2010, 2010.
APA	Lu Ning,&Wang Xiong.(2010).SDG-based HAZOP and fault diagnosis analysis to the inversion of synthetic ammonia..
MLA	Lu Ning,et al."SDG-based HAZOP and fault diagnosis analysis to the inversion of synthetic ammonia".(2010).

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