Marine Exhibitions for 2023January 31, 2023
Hyundai Doosan Infracore`s IMO TIER III solutionMarch 20, 2023
TIER III regulations are set out by the International Maritime Organisation as a global standard to help reduce nitrogen oxide emissions (NOx), as the IMO is an agency of the United Nations these standards are then adopted globally.
The IMO Tier III standard reduces NOx emissions by approximately 70%, the actual limit depends on the engines rated speed but is characterised below.
Tier II nitrogen oxide (NOx) levels range from 14.4 to 7.7 g / kWh.
Tier III nitrogen oxide (NOx) levels range from 3.4 to 2 g / kWh.
Benefits of IMO TIER III compliant engines
Engines that comply with IMO TIER III are generally fitted with exhaust after treatment systems such as an SCR (Selective Catalytic reduction) which converts the exhaust gases into inert Nitrogen and water vapour.
Other than the reduction in NOx emissions further benefits include greater fuel economy and state of the art engine management systems.
TIER III compliant engines are equipped with an array of sensors for capturing engine performance data which leads to better understanding of the engines condition and therefore better informed decisions on maintenance scheduling which may lead to an enhanced resell value of the engine or vessel in future.