The Influence of Risk Prevention Measures on the Frequency of Failure of Piping
Volume 6, Number 1, January 2010 - Paper 2 - pp. 19-33
MARIA FRANCESCA MILAZZO1, GIUSEPPE MASCHIO2 and GIOVANNI UGUCCIONI31DCIIM, University of Messina, salita Sperone 31, 98166, Messina, ITALY
2DIPIC, University of Padova, via Marzolo 9, 35131, Padova, ITALY
3D'Appolonia S.p.A, via Martiri di Cefalonia 2, 20097, San Donato Milanese, ITALY
(Received on September 15, 2008, revised on June 8, 2009)
The main causes of accident in chemical industry are due to deficiencies in the corporate structure, this means the effects of management and organizational variables must be incorporated into the assessment of the frequency. This work focuses attention on the frequency assessment of failure in piping, in particular loss of containment. Some methodologies for the quantification of the effects of measures of risk prevention on the frequencies of rupture of piping are available in literature. The method presented in this paper is a simple approach based on the definition of the links between the causes of failure and the measures adopted by the company to prevent them. After an overview on the causes of failure in piping, the paper describes the approach, the application to a case-study and the study of the sensitivity of the method.
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