Originally Posted by
ProPax
Commercial shipping uses the most effective engines. They have efficiency in excess of 50% which makes them H-system compliant. They use turbocompounds to increase efficiency even further. Even the PAINT on modern ships reduces friction and thus emissions. And they do measure them. Every single project of every single ship has efficiency all over it.
Actually, commercial shipping is the most effective sector. Wartsila diesels have BSFC of 0.260 bs hp/hour. I wonder how it compares to GEx?
Yes, very effective....at polluting the atmosphere.
Economist-Green Finance for Dirty Ships.
SHIPPING may seem like a clean form of transport. Carrying more than 90% of the world’s trade, ocean-going vessels produce just 3% of its greenhouse-gas emissions. But the industry is dirtier than that makes it sound. By burning heavy fuel oil, just 15 of the biggest ships emit more of the noxious oxides of nitrogen and sulphur than all the world’s cars put together. So it is no surprise that shipowners are being forced to clean up their act. But in an industry awash in overcapacity and debt, few have access to the finance they need to improve their vessels. Innovative thinking is trying to change that.
As for efficiency, here's a Wiki . Unfortunately, due to the very nature of the beasts, the comparison with your diesel isn't straight forward.
https://en.wikipedia.org/wiki/Thrust...el_consumption