South Korea’s Hyundai Heavy Industries (HHI) has completed a type approval test of two ultra-long stroke marine engines under a license with global marine engineering firm MAN Diesel & Turbo.
According to HHI, the two G (Green)-type marine engines, the 7G80ME-C9.2 with 37,900 brake horsepower (bhp) and the 6G80ME-C9.2 with 38,200bhp, use 7% less fuel and produce 7% fewer emissions compared to other engines with the same output.
The test was attended by supervisors from 11 classification societies including ABS, DNV, LR and shipowners’ representatives.
One of the engines has been equipped on a 319,000dwt very large crude carrier (VLCC) owned by Greek firm Almi Tankers.
The other engine will be equipped on a 5,000teu containership owned by Thenmaris Ship Management.
HHI said the fuel and emissions reductions of the G-type engines would save the two owners around $2.9m and $1.3m a year, respectively.
HHI’s history of eco-friendly engine development includes the world’s first gas engine package, which incorporates the dual-fuel 2-stroke marine engine and 4-stroke HiMSEN engine (H35DF) and LNG fuel gas supply system (Hi-GAS).
The package also comprises a selective catalytic reduction (SCR) system that reduces NOx emissions by 95%, and the LNG-fueled HiMSEN H35/40GV engine that produces 20% less CO2 compared to diesel engines and reduces NOx emissions by 97%.
Image: One engine was installed on Almi Tankers’ VLCC, while the other will be installed on Thenmaris Ship Management’s 5,000teu containership. Photo: Hyundai Heavy Industries.