HYUNDAI

This letter was written to inform our customers of operation guidance for HiMSEN Engine to comply with IMO MARPOL ANNEX Ⅵ Reg.14.8 which is to come into force as of 1 January,2020 and the regulation of the SECAs.

This Service Letter was written to inform our customers of exhaust gas back pressure for HiMSEN engines with regard to SOx Scrubber installation in order to comply with IMO MARPOL ANNEX VI Reg.14.8 which is to come into force as of 1st January 2020.
Basically, there is no influence when the back pressure is below than 300mmWC for all HiMSEN engine as the engine has been originally designed for maximum allowable back pressure of 300mmWC. In case that the back pressure is increased over the allowable limit due to installation of scrubber, generally increased back pressure causes the deterioration of engine performance.