News on China's scientific and technological development.

HeiTangSeng

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I think there is more than 800 km from Beijing to Shanghai. so is more like 4 hrs

The length of high speed rail track between Beijing and Shanghai is 1318km and the fastest regular service is 4hrs and 26mins (G6, other Gx uses around 4h30m). So the average speed of the G6 is slightly less than 300km/h at 297km/h. This is the world's fastest average speed of high speed train in commercial service.

The maglev mentioned in the article is version 3 developed for intracity commuter travel. I think Beijing has the v2 line and Hunan Changsha has the v1 line in service of this technology.

The 600km/hr maglev designed for Beijing-Shanghai long haul route is already in the testing phase with the first train delivered in 2020.
 

SanWenYu

Captain
Registered Member
The length of high speed rail track between Beijing and Shanghai is 1318km and the fastest regular service is 4hrs and 26mins (G6, other Gx uses around 4h30m). So the average speed of the G6 is slightly less than 300km/h at 297km/h. This is the world's fastest average speed of high speed train in commercial service.

The maglev mentioned in the article is version 3 developed for intracity commuter travel. I think Beijing has the v2 line and Hunan Changsha has the v1 line in service of this technology.

The 600km/hr maglev designed for Beijing-Shanghai long haul route is already in the testing phase with the first train delivered in 2020.
A small correction. The 600 km/hr maglev train was revealed to the public in June 2021. In 2020, this train was still a prototype running on the test line in Tongji University:
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I wouldn't call the train revealed in 2021 a "delivery" though. It had not run the full speed validation test.

According to this story published in Oct, 2021, CRRC was still seeking funding to construct the validation test line for this maglev train:
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"The 600 km/hr full speed validation test was planned in June 20222. It's delayed for sure." said a CRRC representative attending a railway industrial conference on Sept 27, 2021.

To run the full speed, the test line must be at least 60 km to 100 km long. The construction cost will be about 300 million yuan per km. The total cost will be up to 30 billion yuan. If this line is built only for testing, it'll not have any revenue. This is going to be a difficult decision for the ROI.

“原定于2022年6月前完成的时速600公里磁浮交通系统高速考核,也就是达速试验,现在肯定要推迟了。”在2021年9月27日举行的中国轨道交通工业140年峰会创新发展论坛上,中车青岛四方机车车辆股份有限公司(以下简称“青岛四方”)人士对《等深线》记者做出上述表示。
就推迟原因,该人士对记者透露,高速磁悬浮基建工程投资巨大,保守估计每公里造价在3亿元以上,如果进行达速试验,跑出时速600公里以上的话,试验线长度至少需要60~100公里的距离,投资接近300亿元,规模可见一斑。

Even assuming the same, if not higher, unit construction cost for the commercial operation line between BJ and SH, the total investment will be over 400 billion yuan just for building the line, given the distance of about 1300 kms between the two cities.

I think it is still years away for this 600 km/hr maglev train to enter service. There will likely be changes and improvements made to this 2021 version in the meantime. It may even evolve into newer versions before the first commercial line is ready.
 

Strangelove

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China has mastered the fourth-generation nuclear technology, and the world's first nuclear power plant using the technology has been connected to the national grid, Dong Baotong, vice chairman of the China Atomic Energy Authority and deputy to the 13th National People's Congress (NPC), told China Media Group.

China's homegrown high-temperature reactor is considered one of the safest as it will not melt under duress and carries no risk of radiation leakage, according to the China National Nuclear Corporation.

The plant, located in east China's Shandong Province, entered operation in December. With 93.4 percent of material domestically sourced, the plant can meet the heat source demand in ethanol purification, petrochemical and hydrogen production, and other fields.
"The greatest benefit of the high-temperature gas reactor is its inherent safety feature," Dong said. "It doesn't need a big building or a thick containment vessel like other nuclear reactors."

The NPC deputy said that in addition to generating electricity, nuclear technology will also be increasingly used in major projects in the aerospace industry to provide power support for spacecraft carrying out deep space exploration missions.

"Our Chang'e lunar missions can rely on solar power because they are within the solar system. Solar power can assist in Mars missions as well," he said. "But if our spacecraft are exploring the deep space where there is no solar power in the future, then nuclear power will almost be the only choice."

The construction of China's self-developed third-generation nuclear technology, Hualong One, is making steady progress. Four units at home and abroad have been connected to the grid and are generating electricity – two each in southeast China's Fujian Province and Pakistan.
 

Overseaschinese

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A small correction. The 600 km/hr maglev train was revealed to the public in June 2021. In 2020, this train was still a prototype running on the test line in Tongji University:
Please, Log in or Register to view URLs content!


I wouldn't call the train revealed in 2021 a "delivery" though. It had not run the full speed validation test.

According to this story published in Oct, 2021, CRRC was still seeking funding to construct the validation test line for this maglev train:
Please, Log in or Register to view URLs content!


"The 600 km/hr full speed validation test was planned in June 20222. It's delayed for sure." said a CRRC representative attending a railway industrial conference on Sept 27, 2021.

To run the full speed, the test line must be at least 60 km to 100 km long. The construction cost will be about 300 million yuan per km. The total cost will be up to 30 billion yuan. If this line is built only for testing, it'll not have any revenue. This is going to be a difficult decision for the ROI.




Even assuming the same, if not higher, unit construction cost for the commercial operation line between BJ and SH, the total investment will be over 400 billion yuan just for building the line, given the distance of about 1300 kms between the two cities.

I think it is still years away for this 600 km/hr maglev train to enter service. There will likely be changes and improvements made to this 2021 version in the meantime. It may even evolve into newer versions before the first commercial line is ready.
Just built it. I'm pretty sure the line between Shanghai and Beijing would be profitable. Also if the trip is more expensive than by airplane. People would save more time to ride with the maglev.
 

sndef888

Captain
Registered Member
A small correction. The 600 km/hr maglev train was revealed to the public in June 2021. In 2020, this train was still a prototype running on the test line in Tongji University:
Please, Log in or Register to view URLs content!


I wouldn't call the train revealed in 2021 a "delivery" though. It had not run the full speed validation test.

According to this story published in Oct, 2021, CRRC was still seeking funding to construct the validation test line for this maglev train:
Please, Log in or Register to view URLs content!


"The 600 km/hr full speed validation test was planned in June 20222. It's delayed for sure." said a CRRC representative attending a railway industrial conference on Sept 27, 2021.

To run the full speed, the test line must be at least 60 km to 100 km long. The construction cost will be about 300 million yuan per km. The total cost will be up to 30 billion yuan. If this line is built only for testing, it'll not have any revenue. This is going to be a difficult decision for the ROI.




Even assuming the same, if not higher, unit construction cost for the commercial operation line between BJ and SH, the total investment will be over 400 billion yuan just for building the line, given the distance of about 1300 kms between the two cities.

I think it is still years away for this 600 km/hr maglev train to enter service. There will likely be changes and improvements made to this 2021 version in the meantime. It may even evolve into newer versions before the first commercial line is ready.
400b is an absolutely massive figure. Perhaps they should wait a few years for the tech to mature and cost to go down. Afterall China is a developing country and 350kmh rail is mostly fast enough. I'd be happy if it enters service by 2030-2035. Perhaps by then it'll even be feasible to build a 7-800kmh line.

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China has mastered the fourth-generation nuclear technology, and the world's first nuclear power plant using the technology has been connected to the national grid, Dong Baotong, vice chairman of the China Atomic Energy Authority and deputy to the 13th National People's Congress (NPC), told China Media Group.

China's homegrown high-temperature reactor is considered one of the safest as it will not melt under duress and carries no risk of radiation leakage, according to the China National Nuclear Corporation.

The plant, located in east China's Shandong Province, entered operation in December. With 93.4 percent of material domestically sourced, the plant can meet the heat source demand in ethanol purification, petrochemical and hydrogen production, and other fields.
"The greatest benefit of the high-temperature gas reactor is its inherent safety feature," Dong said. "It doesn't need a big building or a thick containment vessel like other nuclear reactors."

The NPC deputy said that in addition to generating electricity, nuclear technology will also be increasingly used in major projects in the aerospace industry to provide power support for spacecraft carrying out deep space exploration missions.

"Our Chang'e lunar missions can rely on solar power because they are within the solar system. Solar power can assist in Mars missions as well," he said. "But if our spacecraft are exploring the deep space where there is no solar power in the future, then nuclear power will almost be the only choice."

The construction of China's self-developed third-generation nuclear technology, Hualong One, is making steady progress. Four units at home and abroad have been connected to the grid and are generating electricity – two each in southeast China's Fujian Province and Pakistan.
If true this will be massive news but I find it weird the article doesn't mention the name of the plant.
Edit: it's a relatively small demonstration reactor
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sndef888

Captain
Registered Member
The nuclear reactor design market has suddenly gotten a lot smaller due to the elimination of the Russian VVER.

China's Hualong One and South Korea's APR1400 are now basically the only reactors in the market worth a damn, with Europe's EPR and US's AP1000 facing a ton of financial/build issues, and Japanese and Canadian reactors dead.

I can foresee Hualong becoming a dominant reactor design in the next 20 years especially if the Hualong Two succeeds (which will reduce build time to a world leading 4 years, and reduce cost to $2000 per kW)
 
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