Dennis Hendershot Forum Moderator 19 Posts
Re: How do you design a vessel to withstand explosions?30 July 2009 at 1:29pm
This is really a civil or mechanical engineering question: How to design a structure or vessel to withstand certain forces.
I am not a mechanical or civil engineer, but I am sure that the details of the vessel or structure are very important, and that each would be a "one of" design by a qualified engineer.
I am sure that there are many experts who are well qualified, (probably anybody who has designed blast resistant structures and equipment for the military, for example) but I think that it is important to engage somebody who understands how to design for an explosion, not just for normal pressure forces. The forces from an explosion are very different -- short duration, rapidly increasing forces applied for a short period of time, and materials react very differently than they would from the same force applied over a longer time period. It is important to understand how the force would be applied, and how the specific material reacts to that type of force.
One of pharmaceutical industry is building hydrogenation room. In that room there are 14 reactors of small capacity. These reactors' capacity vary from 500 ml- 5 liters. These hydrogenators are operating a150 bar pressure. Now the question is what should be the thickness of the wall to sustain the overpressure generated by explosion? We have done a risk analysis study in which overpressure generated by explosion is 1 bar maximum. Kindly tell me the basis for that thickness of the wall.
Have an insight or suggestion?
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