Fuel readiness and design consequences

When Deltamarin modelled the impact of a methanol transition on a vessel designed for conventional fuel operation, one finding was significant. Switching from diesel to methanol produced an approximately 30% reduction in available exhaust gas heat, sufficient to strand waste heat recovery equipment sized for a conventional thermal profile, shift operational dependency toward auxiliary boilers and, in acute cases, render advanced energy recovery systems economically unviable before the end of their design life.

The problem is in the heating system architecture: in the relationship between exhaust gas boilers, Organic Rankine Cycle units, steam turbines and the thermal assumptions embedded in the original design basis. It is straightforward to design around at the newbuilding stage but substantially more