They know enough about emission reduction to license their emission reduction technology to American firms seeking to develop new coal fired generators in the US. This is one of the more rare instances of reversed flow of technology between the US and PRC.
Aircraft Carriers II (Closed to posting)
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They know enough about emission reduction to license their emission reduction technology to American firms seeking to develop new coal fired generators in the US. This is one of the more rare instances of reversed flow of technology between the US and PRC.
TerraN_EmpirE
Tyrant King
The trend for military and civilian naval propulsion seems to be a move to electric this may allow a move to alternative power supplies as engines move from being part of the drive to simply a generator. This could create a move to either gas turbine engines or nuclear power for capital ships with green technology's like solar panels and battery tech to augment. This would give bonuses in terms of Signature reduction.
infrared and acoustic for example.
infrared and acoustic for example.
TerraN_EmpirE
Tyrant King
coal in the US is more or less dead. Their will be attempts but fracking is allowing cheap LNG. The economics of which are driving nuclear plants to be replaced with methane based generation.
even if you could argue the backing for a coal plant the administration would come after you like a killer in a slashed movie.
Gosh, I'd hate to be maintaining old second (or third) hand harriers from the early 20s onwards... They're better off going for F-35B, because harriers offer little increase in capability anyway apart from letting a task force intercept slow moving MPAs. If they want to fight JASDF F-15s or F-2s, or PLAAF flankers and J-10s, a harrier -- even a refitted one -- probably isn't the wisest platform to do it from.
Also, I wonder if Dokdo's deck can withstand the heat of F-35B's lift fan and main engine, problems which I believe initial testing aboard USN LHDs showed.
Agreed. For a while I hoped China was also pursuing such technology with haste, and a recent article seems to confirm it, and all but state in black and white text that it will also be used aboard military vessels.
Chinese shipbuilder reveals breakthrough technology
English.news.cn 2013-08-20 10:52:52
By Zhao Lei
BEIJING, Aug. 20 (Xinhuanet) -- One of China's major shipbuilders said it has developed cutting-edge propulsion technology that will bring the nation closer to its goal of modernizing its shipping and naval fleets.
China Shipbuilding Industry Corp said its Wuhan Institute of Marine Electric Propulsion finalized its integrated electric propulsion technology in mid-July. It said the in-house development will help the nation wean itself off the longstanding dependence on imported parts in manufacturing ships.
Most surface vessels in China use mechanical transmissions and are propelled by a motor or an engine spinning a propeller. Many Western countries have adopted integrated electric propulsion, in which gas turbines or diesel generators produce electricity that powers electric motors.
"Chinese ships usually use steam engines, multiple-stroke diesel engines or gas turbine engines," said Wang Dan, deputy editor-in-chief of Modern Ships magazine. "Chinese navy ships that need to reach fast speeds would have 'combined diesel or gas' propulsion systems."
The development of integrated electric propulsion may resolve engine problems that have long haunted the nation and its navy. One of the major issues has been a lack of domestic companies who can make gas turbine engines to support long distance voyages.
Without domestically developed gas turbine engines, the Chinese navy has been forced to import foreign engines for its ships, said a military expert who did not want to be named. And until an electric propulsion engine is more widely available in China, most ships must run on an engine fueled by diesel and gas.
"Compared with other drive methods, integrated electric propulsion has many advantages. It can save more space and is easier to control. It helps reduce a ship's weight and noise," Wang said. "It also enables ships to cruise at a faster speed and for a longer time."
The new technology is also easier to operate and maintain, he said.
"Now with the achievement made by our technicians, we are seeing an opportunity to narrow the gap with Western naval powers. The British navy's HMS Queen Elizabeth aircraft carrier and the United States navy's Zumwalt-class destroyers, which are all under construction, will use the new electric propulsion technology, which means we must accelerate our development (of the technology) if we don't want to fall behind in building advanced ships."
The HMS Queen Elizabeth, which is scheduled to commence sea trials in 2017, will be the first carrier in the world to adopt integrated electric propulsion.
Wang said it is important for China to improve its vessels' propulsion systems and invest more to develop reliable gas turbine engines for battleships before integrated electric propulsion can be put into wide use.
China in recent years has made a great deal of effort to modernize its naval and shipping fleet and to design new propulsion engines.
China Shipbuilding Industry Corp said in February that one of its research institutions received State approval and funding to formally begin research on core technologies for nuclear-powered ships.
(Source: China Daily)
I think it is never safe to say coal is dead. The reason is simply the world's deposit of coal is vast and far greater than all the other fossil fuel combined, even including the new inventory made accessible by fracking, and coal deposits fortuitously happen to be mostly located close to where the biggest energy consumers in the world are expected to be.
TerraN_EmpirE
Tyrant King
I said in the US.
more and more as the USA Shifts from energy importation to energy exports the cost of Liquid natural gas keeps dropping. Although fracking maybe unpopular for the greens its already making a shift. Green coal is still years away and depending on coal is still not a need. If American commercial industry is looking to coal its not at home. Not yet any way abroad coal is strong.
more and more as the USA Shifts from energy importation to energy exports the cost of Liquid natural gas keeps dropping. Although fracking maybe unpopular for the greens its already making a shift. Green coal is still years away and depending on coal is still not a need. If American commercial industry is looking to coal its not at home. Not yet any way abroad coal is strong.
Part of the reason why fracking gas is so cheap now is there is an oversupply at home and there isn't an adaquate infrastructure to export the gas to supply a world wide demand. So American gas prices don't equilibrate with world wide clearing price. Once the export bottleneck is overcome the excess supply will go away and American gas price will rise to the world equilibrium. Depending on how much fracking happens elsewhere world wide equilibrium gas price could be quite a bit higher than US prices now. That will put coal back into contention.
TerraN_EmpirE
Tyrant King
point but only if the export causes Such a shift. First that LNG has to begin exports that means the US has to approve them this administration seems in no hurry to do so. If the us government does then the shipping methodology starts. Pipelines, LNG tankers good for the entire economy but if such a even happened and coal came back you would also need a administration willing to allow Coal. one of the biggest coal power fights is coal vs the DNC who pandering to the greens has sworn to kill Coal. Fracking has kind of moved in stealthily and set its self on a good standing but despite the greens it is producing jobs and money which Obama cannot fight or squash in light of this economy .
but before we start mining coal. oil seem in good condition for the time being as now. The world shifted and today China is likely to wear the ball and chain of worlds biggest fossil fuels importer for decades to come. She however seems set on Russian African and maybe Iranian crude. As Chinese deals with Russia, investment in Nigeria and South Sudan as well as backing of Iran on the security council seem to prove. Coal may come back to the USA But at the moment its on life support at best.
electric shipping however is very much alive. The USN has stated a interest in Integrating electric drives in her next ssbn and likely late flights of Virginia class as well as follow on SSNs I am betting that when the next Carrier Enterprise is launched she will make use of electric propulsion. And in a way the Chinese PLAN Already does via her fleet of SSKs.
I have long suspected part of the reason the Russians have held off on building new carriers is that they wanted to move to a new propulsion system. That is one of the reasons I think they took an interest in the French Mistral class it uses a electric drive. A drive that might prove the heart of the eventual replacement for the Kundetzov.
SamuraiBlue
Captain
I believe the interest for electric propulsion between US and Russia differs slightly.
From reading various sources I foresee the US adopting electric motors utilizing super conductive material for it's strength and compact size in the near future where as Russia is looking to make their surface vessels more quite ridding of mechanical noise much like the US navy wanting to adopt them for their future sub fleet.
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