Posted on 08/02/2024 11:16:26 AM PDT by Red Badger
Artist's concept of a ship with the CoFlow system
Looking like a set of bridge supports that were accidentally installed on a cargo ship, a new wind-driven system by startup CoFlow Jet promises to reduce ship fuel costs by up to 90% using stationary cylinders with no moving parts.
Between rising fuel costs and increasing government mandates requiring shipping companies to go carbon neutral by 2050, there's a strong push to increase the efficiency of cargo ships while reducing their emissions. One way of doing this is to take a page from the history books and readopt sails to harness the wind.
On the surface, that makes sense. Sails have been propelling ships all over the world for millennia and were still used for commercial transport until after the Second World War. However, there are two problems with sails that have pushed them out of the cargo market for all except the most local of niches.
First, traditional sails require huge crews. Something the size of the 921-tonne tea clipper Cutty Sark needed a crew of about 30 to handle the sails and the complex sheets and lines that controlled them. Compare that to a modern 196,000-tonne container ship that needs only 13 officers and sailors – and most of them are pushing buttons instead of hauling lines.
The second problem is that sails are completely dependent on the wind. If the wind is blowing hard enough and in the right direction, great. If it's blowing too little or too hard, or if it's blowing from the wrong quarter, that's not so great. If it's not blowing at all, you're not going anywhere.
(Excerpt) Read more at newatlas.com ...
Hey Unicorn Fart Expert, please tell us how much energy it takes to...
“pressurizing it using an impeller, and squirting it through the outlet, this generates a pressure imbalance and a considerable amount of thrust”
And where the energy comes from and exactly how much thrust does it generate, and how does that compares with today’s most efficient conventional propulsion?
Without these numbers, this article is useless.
But of course you know, so please enlighten all of us ignoramuses. Thanks in advance.
Our resident liberal cage rattler thinks this pie-in-the-sky is just great.
But....has he sold his Teslas, stocks, house & what all to ground-floor invest? I highly doubt it.
” Think of the massive potential financial losses each time that the winds are absent.”
What massive financial losses?
“I tried to read the article but my BS meter kept getting in the way.”
You need to send it in for servicing ...
“Maybe the headline writers “
The only job of headline writers is to generate clicks.
“Our resident liberal cage rattler thinks this pie-in-the-sky is just great.”
You cannot cite any posts to back up your lie.
It just reflects your total ignorance of the topic.
The E-Ship 1 was equipped with nine Mitsubishi marine diesel engines[6][7] with a total output of 3.5 MW. The ship's exhaust gas boilers are connected to a Siemens downstream steam turbine, which in turn drives four Enercon-developed Flettner rotors. These rotors, resembling four large cylinders mounted on the ship's deck, are 27 meters tall and 4 meters in diameter. The speed and direction of rotation varies up to 300RPM depending on the prevailing wind speed and direction relative to the ship. Due to technical problems the Mitsubishi diesel generators were replaced by Caterpillar diesel generators in 2013. The new Caterpillar generators generate a total power of 6.3 MW.
“And where the energy comes from ...”
From the wind!
” ... and exactly how much thrust does it generate, and how does that compares with today’s most efficient conventional propulsion?”
Go to their website.
If you look carefully you’ll note I was replying to someone’s comment, not the article.
A brief review indicates that this another example of subsidy mining.
“Hey Unicorn Fart Expert”
Why don’t you grow up and act like an adult.
It would be still without the Climate Change hoax.
“If you do any research on this:
1) It is driven by the green /climate change movement. “
Since youndid the research provide a source.
“From the wind!”
Absolutely not! It’s there in black and white. It comes from a fan compressing air and shooting it out. That’s what’s known as a turbine. What powers that turbine?
And you didn’t answer my other questions.
But I didn’t expect you to.
Me: ““From the wind!”
“Absolutely not! It’s there in black and white. It comes from a fan compressing air and shooting it out. That’s what’s known as a turbine. What powers that turbine?”
You do not understand how this operates. The turbine uses only a small amount of power which creates a pressure differential resulting in a large energy gain for propulsion from wind energy,
“And you didn’t answer my other questions.
But I didn’t expect you to.”
I directed you to their website for the details.
“I’m having a problem seeing how that doesn’t consume as much or more power than it “saves”.”
Think of it like an amplifier where the difference in air pressure is a self-feedback loop, continually adding energy. Doesn’t mean it’s practical.
“Think of it like an amplifier where the difference in air pressure is a self-feedback loop, continually adding energy.”
That sounds a lot like a perpetual motion machine.
I remember seeing pictures of these things years ago.
What’s behind their resurgence?
Merit (efficiency, economy, utility), or
Mandate (subsidy, legislation, DEI) ?
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