HiMSEN Engine Operation with Low Sulphur Fuel HOT!

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.

Check Points for operation with Low Sulphur Fuel
Except some Offshore vessels, HiMSEN engines for Marine(Gen-set, Propulsion) are optimized to operate with HFO in consideration of the economic engine operation.
Therefore, following points should be taken into consideration in order to operate HiMSEN engine properly with Low Sulphur Fuel which shows different characteristics as Fuel oil.

3. HiMSEN guideline for lube oil using low sulfur MGO
1) Typical recommended BN depending on the fuel sulfur contents and SLOC (g/kWh)

4. HiMSEN guideline for fuel oil using low sulfur MGO
1) All HiMSEN engines are suitable and developed for continuous operation on HFO as well as MDO/MGO as per the F.O specification for HiMSEN engine described on the instruction manual in detail.

There is no lower limit for the sulfur content of fuel oil. In connection to the low viscosity of MGO, (Marine Gas Oil, DMA as defined in ISO 8217) the viscosity at engine inlet should be kept within the value of 2 ~ 14 cSt in order to avoid possible wear or sticking of fuel injection pump due to low lubricity and in order to maintain the suitable hydrodynamic film between fuel injection pump plunger and barrel.
• Recommended stable viscosity at engine inlet: Min. 3 cSt
• Recommended minimum viscosity at engine inlet: Min. 2 cSt

Type: H17/28 , H21/32 , H25/33 , H32/40(V) , H35DF
Rule & Regulation: IMO MARPOL ANNEX Ⅵ,REG.14.-SOx , SECA