R.Rouvari Oy has developed an ice impact load monitoring system ICEMON® and installed the system on Aframax size CO carriers to ensure safe operation with this size of the vessels on Arctic waters. The development work of wide scope was in close co-operation with Helsinki University of Technology (TKK) and the Arctic and Antarctic Research Institute (AARI) in St. Petersburg.
ICEMON ice impact load monitoring and HULLMOS® hull stress monitoring systems were integrated and installed onboard five Aframax crude oil tankers of Primorsk Shipping (Singapore) and Unicom Management Services (Cyprus). The five vessels are long-term chartered for Exxon Mobile in the Sakhalin-1 project. The extensive installation was in co-operation with Hyundai Heavy Industries during autumn 2005 and was successfully completed in December 2005, when the last of the vessels was delivered. The final icetrials are expected to be during winter seasons 2006-07.