I understand that a Pantone on a marine diesel, could be less spectacular, in fuel economy, than an agricultural tractor.
A boat engine, on a trawler, most of the time has a nominal speed, not very fast, and does not force, but runs for a long time.
Excluding pantonized agricultural engines would save 50% when they are loaded and give off a lot of heat.
From the experience of
https://www.econologie.com/forums/m-bailly-m ... t1808.html
Engine tested on the test bench, at the Poyaud factory in Surgères.
Shortened tests because the Regional Council of Charente-Maritime (S. R), removed the continuation of the subsidies, to redirect the budget towards an increased aid to reinforce the agricultural biofuel sector.
Engines are generally cooled by large circulation of seawater.
The results were not extraordinary, as there was an intercooler on this engine.
So there is no way to exploit the residual heat, unless you significantly modify the operation or cooling of the original engine.
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The engine was mounted on the trawler.
With the pantone system, not very effective? I do not know.
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But a marine engine must be able to run on oil, more expensive than zero-rated fuel?