Analysis of Deluge System, Bulk HE.
Abstract
A safety oriented design analysis is described covering an explosion proof, fire detection and protection system for conveyors transporting high explosives at fixed distances. The analysis was made on the system as the design evolved under a separate study contract. The design analysis was performed in conjunction with a comprehensive Fault Tree Analysis. A preliminary Fault Tree was prepared free hand. Computer codes were then used to construct a final Fault Tree, determine minimal cut sets, and determine failure probabilities with and without maintenance and/or testing programs. Illustrations of the code work are included. The initial design indicated twelve single-point failure modes. A means of increasing to two element failure modes has been recommended. Using the same failure rates three orders of improvement can be achieved by this change. Test and repair rates of from one-to-three months are shown to provide an added order-of-magnitude of improvement. Recommendations on final design of system based on the design analysis and computer results have been made. Additional work and areas of investigation have been suggested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1975
- Accession Number
- ADA040208
Entities
People
- William J. Coffey
Organizations
- Picatinny Arsenal