Guided Missile Submarine SSGN Seawater System Antifouling

In this Phase II contract, Interphase Materials will further validate the efficacy of its antibiofouling surface treatment (AST) in preventing biofouling on OHIO-class submarine seawater cooled heat exchangers (HX). The AST is a molecularly thin surface treatment that binds to the substrate, protecting the surface from organism attachment. An intensive field study will be conducted, incorporating AST application on both pristine and previously fouled HXs. Heat transfer properties and biofouling accumulation on these HXs will be monitored carefully over the course of several years in water conditions relevant to the NAVY. This will allow Interphase to provide the NAVY with an accurate model of fouling reduction and thus savings granted through AST application in a warm seawater environment, as well as an estimated timeline for AST reapplication. Concurrently with these field studies, a lab scale test will evaluate the AST’s longevity when exposed to abrasive fluid flow. The team, including Hepburn and Sons LLC, will also begin discussions with technical warrant holders and preparation of the documentation necessary for NAVY implementation on an in-service vessel, so that the transition from Phase II to Phase III may occur seamlessly.