2018 Spring Meeting and 14th Global Congress on Process Safety
(54by) Use of Structural Analysis to Optimize Passive Fireproofing for Small Scale LNG
However, after loss of containment some of the passive methods are effective in limiting the extent of damage and prevent escalation of the incident. Passive fire proofing (PFP) is an excellent tool that can be used to protect equipment and pipe steel supports from effects of fire and cryogenic exposure. PFP is not directly mandated by code, but generally regarded as part of best practice design. Usually such applications are based on gross extents extending 20-30 feet in all directions from a hazard source and coating every structural member within. This can result in higher costs and its use questioned by cost conscious projects in a competitive market.
In this paper we demonstrate methodical technique of detecting pool, jet fire and cryogenic hazards of LNG and evaluating their impact on load bearing structural members. Then the amount and location of PFP application is optimized to prevent failure and escalation of the incident thus achieving cost reductions. With such optimization, PFP be considered for smaller LNG projects and applied in a cost effective way precisely where needed using advanced structural analysis. Using these techniques cost saving of 40% or more can be achieved compared to traditional tools and methods.