News on China's scientific and technological development.

Equation

Lieutenant General
Im not against EV if the energy comes from an efficient source like natural gas. Unfortunately for country like China where majority of energy is from coal, EVs are dirty. If you are in Quebec where power is all hydro, then great....assuming the car will start in the winter.

But eventually China is moving away from coal as it's major source of energy. It's not like China will be using coal as fuel forever. We already seen China progressing faster than anyone else on Earth in both the green energy and new nuclear power plants fields. In the mean time keep producing and researching EV cars for the world's market to enhance the programs and become dominant in the EV field as well.
 

Quickie

Colonel
Yes. Diesel combustion for power generation is extremely efficient in the newer designs. Natural gas is even more so, there are plants pushing close to 99% efficiency.

By 99% efficiency, you probably meant another kind of efficiency, maybe burning (chemical to heat conversion) efficiency? See chart below for power plant efficiency.

efficiency-of-hydropower.png
 

PiSigma

"the engineer"
Then EV makes sense then ;)

Much higher efficiency and better/easier pollution control
Im not against EV if the energy comes from an efficient source like natural gas. Unfortunately f
By 99% efficiency, you probably meant another kind of efficiency, maybe burning (chemical to heat conversion) efficiency? See chart below for power plant efficiency.

efficiency-of-hydropower.png
Sorry was thinking 99% completion of combustion.
 

Equation

Lieutenant General
Im not against EV if the energy comes from an efficient source like natural gas. Unfortunately f

Sorry was thinking 99% completion of combustion.

But gas requires a lot of digging, fracking, and processing that makes it dirty. Bottom line there is no such thing as a 100% pollution free energy. Even green energy such solar, wind, hydro, and nuclear requires some kind of digging or mining for materials to burn or process to spin that generator.
 

B.I.B.

Captain
But eventually China is moving away from coal as it's major source of energy. It's not like China will be using coal as fuel forever. We already seen China progressing faster than anyone else on Earth in both the green energy and new nuclear power plants fields. In the mean time keep producing and researching EV cars for the world's market to enhance the programs and become dominant in the EV field as well.[/QUOTE]

Where does Chinese designed power trains (and battery) stand in relation to those made in Japans and the West?

In reference to conventional cars I notice SAIC MG SUV got a five star ACAP rating which is a first for a Chinese made vehicle. I read that they have stiffen up the suspension a little bit which is good.It appears that folks back in China prefer a softer suspension which results in a feeling that one is sitting on the living room settee which is probably not a bad idea if one is essentially a slow and cautious driver or continuously stuck for long periods in traffic jams.

MG made their name with Roadsters so it would be interesting to see if SAIC will include one in their lineup.
 

Hendrik_2000

Lieutenant General
The first US HSR suffer accident on the first run.
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Now the Japanese much touted "safe" maglev in trouble Where are the western media who so gleefully reporting Chinese "bad quality" train accident in Wuhan.?. this days Japanese firm suffer humiliation one after another from
Takata air bag to falsification data at Subaru and Mitsubishi to Kobelco
I guess Chinese train is not so bad after all Last spring festival they carry record amount of passenger with no accident

Nearly 3 billion trips were made during the 40-day Spring Festival travel rush between Jan 13 and Feb 21, marking a new record of human migration during the Spring Festival travel rush, the Ministry of Transport said on Wednesday.

Of these, 2.52 billion trips were made by road, 357 million trips were made by railway, and 58.55 million trips were made by air.


Japanese prosecutors raid more firms over maglev train contracts
Reuters Staff
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TOKYO (Reuters) - Japanese prosecutors on Monday raided the offices of two of the country’s biggest construction firms as they expanded an investigation into suspected collusion over contracts for an $80 billion high-speed magnetic levitation (maglev) train line.

Investigators entered the offices of Shimizu Corp (
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) and Kajima Corp (
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) in Tokyo on Monday, spokesmen for the two companies said, in the latest scandal to hit corporate Japan following revelations of data fraud at major manufacturers.

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The raids by prosecutors and anti-trust agency officials come a week after officials launched an investigation into Obayashi Corp (
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), another construction company, for suspected bid-rigging in maglev-related contracts.

While the scope of the probe broadened on Monday the scale of the suspected wrongdoing remained unknown and prosecutors declined to comment.


Kajima shares plunged as much as 4.6 percent and Shimizu shares fell as much as 3.7 percent on news of the raids, while the Nikkei 225 index was 1.5 percent higher.

Shares of Taisei Corp (
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), another member of the so-called “big four” group of Japanese construction firms involved in the maglev project, were also down 2 percent although a spokesman said it had not been raided.


Slideshow (5 Images)
Japan’s large and politically influential construction industry has been a frequent source of scandals such as bid-rigging.

Legislation has been tightened in recent years to prevent collusion over contract bids, and Obayashi in 2006 required managers to sign a pledge to abide by antitrust laws. The next year, however, the firm’s top management resigned following a public works scandal.

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1143.0
1803.TTOKYO STOCK EXCHANGE
-26.00(-2.22%)
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  • 1803.T
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  • 1802.T
  • 1801.T
Backed by cheap government loans and running in addition to Japan’s extensive bullet train network, the maglev project linking Tokyo, Nagoya and Osaka has drawn criticism for its cost and lack of export potential.

Proponents led by Prime Minister Shinzo Abe say the project will spark badly needed economic growth.

The big four contractors have won roughly an equal number of orders for about 70 percent of the projects, according to Japanese media reports.
 
Last edited:

siegecrossbow

General
Staff member
Super Moderator
The first US HSR suffer accident on the first run.
Please, Log in or Register to view URLs content!

Now the Japanese much touted "safe" maglev in trouble Where are the western media who so gleefully reporting Chinese "bad quality" train accident in Wuhan.?. this days Japanese firm suffer humiliation one after another from
Takata air bag to falsification data at Subaru and Mitsubishi to Kobelco
I guess Chinese train is not so bad after all Last spring festival they carry record amount of passenger with no accident

Nearly 3 billion trips were made during the 40-day Spring Festival travel rush between Jan 13 and Feb 21, marking a new record of human migration during the Spring Festival travel rush, the Ministry of Transport said on Wednesday.

Of these, 2.52 billion trips were made by road, 357 million trips were made by railway, and 58.55 million trips were made by air.


Japanese prosecutors raid more firms over maglev train contracts
Reuters Staff
Please, Log in or Register to view URLs content!

TOKYO (Reuters) - Japanese prosecutors on Monday raided the offices of two of the country’s biggest construction firms as they expanded an investigation into suspected collusion over contracts for an $80 billion high-speed magnetic levitation (maglev) train line.

Investigators entered the offices of Shimizu Corp (
Please, Log in or Register to view URLs content!
) and Kajima Corp (
Please, Log in or Register to view URLs content!
) in Tokyo on Monday, spokesmen for the two companies said, in the latest scandal to hit corporate Japan following revelations of data fraud at major manufacturers.

SPONSORED


The raids by prosecutors and anti-trust agency officials come a week after officials launched an investigation into Obayashi Corp (
Please, Log in or Register to view URLs content!
), another construction company, for suspected bid-rigging in maglev-related contracts.

While the scope of the probe broadened on Monday the scale of the suspected wrongdoing remained unknown and prosecutors declined to comment.


Kajima shares plunged as much as 4.6 percent and Shimizu shares fell as much as 3.7 percent on news of the raids, while the Nikkei 225 index was 1.5 percent higher.

Shares of Taisei Corp (
Please, Log in or Register to view URLs content!
), another member of the so-called “big four” group of Japanese construction firms involved in the maglev project, were also down 2 percent although a spokesman said it had not been raided.


Slideshow (5 Images)
Japan’s large and politically influential construction industry has been a frequent source of scandals such as bid-rigging.

Legislation has been tightened in recent years to prevent collusion over contract bids, and Obayashi in 2006 required managers to sign a pledge to abide by antitrust laws. The next year, however, the firm’s top management resigned following a public works scandal.

Please, Log in or Register to view URLs content!
1143.0
1803.TTOKYO STOCK EXCHANGE
-26.00(-2.22%)
chartsgen2

  • 1803.T
  • 1812.T
  • 1802.T
  • 1801.T
Backed by cheap government loans and running in addition to Japan’s extensive bullet train network, the maglev project linking Tokyo, Nagoya and Osaka has drawn criticism for its cost and lack of export potential.

Proponents led by Prime Minister Shinzo Abe say the project will spark badly needed economic growth.

The big four contractors have won roughly an equal number of orders for about 70 percent of the projects, according to Japanese media reports.

RIP. It wasn't an HSR train though since the top speed was 40 miles per hour on the bridge.
 

Hendrik_2000

Lieutenant General
RIP. It wasn't an HSR train though since the top speed was 40 miles per hour on the bridge.

High speed is relative term 80 mile/hr might be slow in Japan and China but high speed in US It was new service billed as HSR in Seattle
DRV_v1HU8AATcbD.jpg

New High-Speed Train Derails on Its First Ever Trip: Here's What We Know
Watch
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, TV and more on
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.


An Amtrak train derailed Monday morning in Washington state. This was the first ride for a new high-speed service linking the
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of Olympia and Tacoma. The cause of the derailment is not yet known, though at least one source has confirmed people have died in the crash.

Amtrak Train 501 derailed shortly before 7:45 a.m. Pacific time. It came off the tracks while crossing an overpass above Interstate 5 in Pierce County, about 20 miles south of Tacoma and 15 miles east of Olympia. Photos from the scene show one of the train
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hanging off the bridge, while other derailed cars reportedly hit vehicles on the highway.

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that 78 passengers and five crew were on board the train, which was making its first ever journey along a new inland, high-speed route designed to cut travel times between the two Washington cities by 10 minutes. The derailment occurred on part of this new section, which is a bypass route that runs along I-5.

The train’s last known speed before the derailment was 81 miles per hour, according to Amtrak’s real-time location service. This appears to be at the top end of the speeds the trains are designed to reach, as the goal of using this bypass was to have the trains operate at speeds of up to 80 miles per hour.
 

solarz

Brigadier
Im not against EV if the energy comes from an efficient source like natural gas. Unfortunately for country like China where majority of energy is from coal, EVs are dirty. If you are in Quebec where power is all hydro, then great....assuming the car will start in the winter.

The reason China is pushing electric vehicles in preparation for a post-oil economy. Yes, China's electricity is still relying in a large part on coal, but that is changing. By pushing EVs in tandem with additional hydro and nuclear electricity sources allows latter investments to start generating revenue immediately instead of waiting for people to adopt the EV.
 
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