Ships fitted with ‘cheat devices’ to divert poisonous pollution into sea

Post by mogadsheu » Mon, Sep 30, 2019, 8:09 AM UTC

sdfmmkmsdfmk wrote: post #10

mogadsheu wrote: post #5

Shipping is a pretty dirty industry, because of fuel quality they use and the general lack of oversight in the middle of the ocean. I was on the board of Corvus Energy ( http://corvusenergy.com ) while working in Norway, whose technology reduces CO2, SOx, NOx, and fuel consumption by up to 30%. One installation was the equivalent of taking 10,000 cars off of the road. Thankfully, there are developments in this space.…

If it reduces fuel consumption by 30%, wouldn't all ships want to have it? Is it too expensive, or what is the problem?

Post by joaomacp » Mon, Sep 30, 2019, 8:23 AM UTC

willvarfar wrote: post #9

seren wrote: post #7

I was wondering what it would take to replace a current container ship by a sail boat, like a clipper. Apparently, each container ship has more or less a 100 times the tonnage of a clipper. Independently of the speed of the ships, the cost of the crews would probably kill the idea, except for goods with a very high margin, but there must a fuel price (including carbon tax) where this should become economically viable…

There are lots of experiments and even production ships with sails these days. Google for "sails on container ships" for lots of nice pictures and articles. The sails don't look like historic sails - they are often rotors that look like cylinders. Maersk's Pelican, for example, is supposed to get 10% from its rotor sails. Tangent: why do wind turbines look so conventional, with their propellers? There is a lot online…

Post by latchkey » Mon, Sep 30, 2019, 8:59 AM UTC

markdown wrote: post #12

wereHamster wrote: post #4

I guess the new law reads "Can't release sulphur into atmosphere", so the shipping companies were thinking of ways around that. Why not say "Can't release … into environment", which would cover air, sea, ground, space and everything else around us?

They definitely should dump it outside the environment: https://www.youtube.com/watch?v=3m5qxZm_JqM

Post by poooogles » Mon, Sep 30, 2019, 9:22 AM UTC

rr-geil-j wrote: post #8

mogadsheu wrote: post #5

Shipping is a pretty dirty industry, because of fuel quality they use and the general lack of oversight in the middle of the ocean. I was on the board of Corvus Energy ( http://corvusenergy.com ) while working in Norway, whose technology reduces CO2, SOx, NOx, and fuel consumption by up to 30%. One installation was the equivalent of taking 10,000 cars off of the road. Thankfully, there are developments in this space.…

Don't forget the noise pollution: https://www.marineinsight.com/environment/effects-of-noise-p... https://ocr.org/sounds/shipping-noise/

Post by Gwypaas » Mon, Sep 30, 2019, 9:34 AM UTC

pnako wrote: post #14

seren wrote: post #7

I was wondering what it would take to replace a current container ship by a sail boat, like a clipper. Apparently, each container ship has more or less a 100 times the tonnage of a clipper. Independently of the speed of the ships, the cost of the crews would probably kill the idea, except for goods with a very high margin, but there must a fuel price (including carbon tax) where this should become economically viable…

But maybe you don't need crews, and ships that big. Perhaps it would be viable to operate a semi-autonomous fleet of dozens or hundreds of medium-sized wind-powered ships; it's possible that wind turbines + battery + electric engine would be better than sail. A trimaran could accommodate wind turbines and a certain number of standard containers that would also act as ballast. COLREGs probably prevent unmanned ships,…