The Appropriate Parameter from Disposal of Explosive Items with Abrasive Water Jet Cutting System (AWCS) without Self-Ignition

Abstract

This Article will focus on the Energy dissipation which occurs in explosive items during the process concerned to The Disposal of Explosive Items with Abrasive Water Jet Cutting System: AWCS. Also, it utilizes for determine Parameter from AWCS machine and to ensure that it secures in operating for EOD (Explosive Ordnance Disposal) Technicians by without self-ignition of explosive items. The Experiment was chosen by the method of cutting the steel plate: size 10 mm through adjusting the Variation of Parameter under AWCS machine which were Pressure Water Jet (Pressure: p) and Velocity of nozzle (Traverse speed: v); generated energy influence to both of Parameters. On the other hand, there is an experimental condition which is incapable to direct the assessment of Cutting system.Thus, the result of measurement was selected by Surface Roughness Tester and to compare with typical system for generated energy as statement above. After that, there was experimental cutting system through real explosive items with Parameter that generates highest energy. In order to verify the system, it must be safe, utilize for the operation and not driven to self-ignition as following theory in the research. The Explosive Items are taken for these experiments including; Mortar Shells size 120 mm, Air Bomb size 100 Ib which contained TNT as explosion material and Minimum Ignition Energy (MIE) is equivalent to 75 mJ and Primary explosion which is used for Blasting Cap/Detonator and it places in Fuze portion; Lead Azide with MIE at 7mJ. From the experimental results, the disposal of explosive items with Abrasive Water Jet Cutting System under Parameters conditions which influence to generate highest Kinetic Energy, has not found its self-ignition. Hence, the Parameters from experiment are able to determine the Performance Standard for EOD Technicians as safely.