Le nucléaire en Chine

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Re: Le nucléaire en Chine

Message par energy_isere » 17 sept. 2022, 15:13

Et hop, approbation pour la construction de 4 autres réacteurs en Chine :
Approval for four new reactors in south China

15 September 2022

China's State Council approved the construction of two CAP1000 units as Phase I of the Lianjiang nuclear power plant in Guangdong province and two Hualong One units as Phase II of the Zhangzhou plant in Fujian province.

The decision to approve the projects was taken during a 14 September meeting chaired by Premier Li Keqiang.

"In order to improve energy security capability and promote green development, the meeting decided to approve the nuclear power projects of Zhangzhou Phase II in Fujian and Lianjiang Phase I in Guangdong, which have been included in the plan and have mature conditions," the state news agency Xinhua reported.

Two CAP1000 units - the Chinese version of the AP1000 - are planned for the first phase of the Lianjiang plant, a project of State Power Investment Corporation (SPIC). Four further CAP1000s are envisaged for the second phase of the project.
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https://www.world-nuclear-news.org/Arti ... outh-China

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Re: Le nucléaire en Chine

Message par energy_isere » 15 oct. 2022, 20:39

suite de ce post du 19 mars 2022 viewtopic.php?p=2339619#p2339619

Le réseau de chaleur du complexe nucleaire de Hongyanhe bientot terminé. Pour alimenter 20 000 habitants.
Hongyanhe district heating project into final stages

14 October 2022

Construction is reportedly 95% complete on the demonstration nuclear heating project at the Hongyanhe nuclear power plant in China's Liaoning province and it aims to be up and running within the next month.

Image
The Hongyanghe nuclear plant (Image: CGN)

The China Nuclear Energy Association, citing the Dalian Daily newspaper, said that construction has progressed well since July for the project which is jointly funded and being built by Liaoning Hongyanhe Nuclear Power Company and State Power Investment Northeast Electric Power Company.

Liaoning Hongyanhe Nuclear Power Co is responsible for the renovation of the heat source on the site and the construction of the primary pipe network and ancilliary facilities, while State Power Investment Northeast Electric Power Co's subsidiary Dalian Dafa Energy Branch is responsible for the construction and operation of the secondary network - including a secondary pipe network of 5.7 kilometres - production and operation centre and heat exchange station.

The demonstration project is scheduled to be completed on 25 October, operating in a hot state on 1 November and reaching the official heating standard on 5 November.

According to China Environment, in a report also cited by the China Nuclear Energy Association, it had been told that the project "has been completed about 95%" and that at the start it will cover Hongyanhe Town, 10 kilometres away from the nuclear power plant, with a heating user area of more than 240,000 square metres. In total about 20,000 residents will benefit from it.

The environmental protection benefits from the completed project are estimated as the reduction of annual coal consumption by 12,100 tonnes, smoke and dust emissions by more than 209 tonnes, sulphur dioxide by more than 60 tonnes, carbon dioxide by more than 14,000 tonnes, nitrogen oxides by more than 85 tonnes, and ash by more than 0.26 tonnes.

This is the first district heating project in the north-east of China. The Chinese government has made clean-energy heating a priority. In 2017, the authorities issued guidance on clean heating in winter in northern China. The National Energy Administration released a five-year plan, covering 2017-2021, highlighting the innovation of clean heating technology and consideration of nuclear heating.

China's Haiyang nuclear power plant in Shandong province officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. This year the Haiyang Nuclear Energy Heating Project began providing heating to the entire Haiyang city.

The first phase of a district heating demonstration project at the Qinshan nuclear power plant in China's southern Zhejiang Province was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy-generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have a nuclear heating area of ​​4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

Russia, several East European countries, Switzerland and Sweden have all had nuclear-fuelled district heating schemes, and heat from nuclear power plants has also been sent to industrial sites in several countries.
https://www.world-nuclear-news.org/Arti ... ct-heating

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Re: Le nucléaire en Chine

Message par energy_isere » 05 nov. 2022, 15:00

suite du post au dessus.
Hongyanhe district heating demonstration project starts

02 November 2022

The demonstration nuclear energy heating project at the Hongyanhe nuclear power plant in China’s Liaoning province has been officially put into operation. It is the first nuclear energy heating project in northeast China, benefiting nearly 20,000 local residents.

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https://www.world-nuclear-news.org/Arti ... -project-s

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Re: Le nucléaire en Chine

Message par energy_isere » 05 nov. 2022, 15:05

suite de ce post du 9 janvier 2021 viewtopic.php?p=2314874#p2314874
Dome in place at first San'ao unit
The 238.5-tonne dome was hoisted into place on 3 November, marking an important milestone in the construction of the first of six Hualong One units planned for the site. Work at San'ao 1 will now focus on the installation of equipment.

04 November 2022

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San'ao gets its dome (Image: CGN)

The dome is a key component of the third safety barrier of the nuclear power plant, ensuring the integrity and sealing of the reactor building and realising the inherent safety characteristics, China General Nuclear Power Group (CGN) said.

The operation to hoist the dome, which is 45 metres in diameter, to a height of 70 metres and moving it into place is a high-precision task, with challenges including wind conditions and thermal expansion and contraction due to changing temperatures.

"It's like using a crane to thread an embroidery needle," Zhong Hongjin, senior engineer in charge of nuclear island civil works at CGN Cangnan Nuclear Power Co, Ltd.

Two Hualong One units are currently under construction at San'ao, which is near Cangnan county on the coast of Zhejiang province. Construction of unit 1 began at the end of 2020, with unit 2 following a year later. The units are currently expected to begin operation in 2026 and 2027 respectively.
https://www.world-nuclear-news.org/Arti ... an-ao-unit

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Re: Le nucléaire en Chine

Message par energy_isere » 18 déc. 2022, 18:51

Chinese nuclear plant starts supplying industrial heating

15 December 2022

China's first nuclear energy industrial heating project has officially been completed and put into operation at the Qinshan nuclear power plant in Zhejiang Province, China National Nuclear Corporation (CNNC) announced.

The project started on 15 July this year, with the construction of the main network completed on 15 November. It entered trial operation on 21 November.

CNNC said the project can provide guaranteed 24-hour heat supply with annual industrial heat supply of about 288,000 gigajoules. This, it says, is equivalent to saving about 10,000 tonnes of standard coal and reducing carbon dioxide emissions by about 24,000 tonnes.

"This is another major breakthrough made by CNNC Qinshan Nuclear Power and Haiyan County in the comprehensive utilisation of nuclear energy since the completion of the first phase of the Zhejiang Haiyan Nuclear Energy Heating Demonstration Project in 2021," CNNC said.

The first phase of the district heating demonstration project at Qinshan, with a total investment of about CNY940 million (USD135 million), was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have 704,000 gigajoules of heat, meeting the heating demand of 4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

The Zhejiang Haiyan Nuclear Energy Heating Demonstration Project utilises the remaining thermal power from the Qinshan plant in winter to provide heating to public facilities, residential communities and industrial parks in Haiyan County without affecting the original power generation and safety performance of the reactors.

Qinshan is China's largest nuclear power plant, comprising seven reactors. Construction of Phase I of the plant - a 300 MWe pressurised water reactor (PWR) which was the first indigenously-designed Chinese nuclear power station to be built - began in 1985, with the unit entering commercial operation in 1994. Qinshan Phase II is home to four operating CNP-600 PWRs, built with a high degree of localisation. Units 1 and 2, comprising the first stage of Phase II, began operating in 2002 and 2004, respectively. Units 3 and 4 entered commercial operation in October 2010 and April 2021. Phase III consists of two 750 MWe pressurised heavy water reactors supplied by Atomic Energy of Canada Ltd and commissioned in 2002 and 2003.

China's Haiyang nuclear power plant in Shandong province officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. In 2021, the Haiyang Nuclear Energy Heating Project began providing heating to the entire Haiyang City.

In May, CNNC started work on a project at the Tianwan plant in China's Jiangsu province to supply steam to a nearby petrochemical plant. Due for completion at the end of 2023, it will be China's first industrial-use nuclear energy steam supply project. The facility is expected to supply 4.8 million tonnes of steam annually.
https://www.world-nuclear-news.org/Arti ... industrial

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Re: Le nucléaire en Chine

Message par energy_isere » 13 janv. 2023, 22:38

En rapport avec ce post du 26 mars 2022 : viewtopic.php?p=2340189#p2340189
CGN's first Hualong One reactor starts supplying electricity

11 January 2023

Unit 3 of the Fangchenggang nuclear power plant in China's Guangxi Autonomous Region has been connected to the grid for the first time, China General Nuclear (CGN) announced. The unit - the first of two demonstration Hualong One (HPR1000) reactors at the site - is scheduled to enter commercial operation in the second half of 2023.

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Fangchenggang unit 3 (Image: CGN)

The 1180 MWe (gross) pressurised water reactor was synchronised with the grid at 8:29pm on 10 January, CGN said, "marking that the unit has the ability to generate electricity and is moving towards the goal of commercial operation".

First concrete was poured for the nuclear island of unit 3 of the Fangchenggang plant - 39% owned by Guangxi Investment Group and 61% by CGN - in December 2015, while that for unit 4 was poured a year later. Unit 3 was originally expected to start up in 2019, with unit 4 scheduled to start up in 2020. Both their start-ups were subsequently postponed until 2022.

In January 2022, CGN announced that the start up of Fangchenggang 3 and 4 had been put back due to delays caused by the COVID-19 pandemic. It said the start of operation of unit 3 had been put back to the second half of 2022, with that of unit 4 expected in the first half of 2024. However, in December, CGN announced Fangchenggang 3 would now not begin operation until the first half of 2023.

The unit achieved first criticality - a sustained chain reaction - on 27 December.

The two demonstration units of China National Nuclear Corporation's (CNNC's) version of the Hualong One design at the Fuqing plant in Fujian province have both already started up. Unit 5 entered commercial operation on 30 January 2021, with unit 6 following on 25 March 2022.
https://www.world-nuclear-news.org/Arti ... upplying-e

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Re: Le nucléaire en Chine

Message par energy_isere » 18 févr. 2023, 12:05

Début de construction d'un réseau de chaleur de la centrale nucléaire de Haiyang sur 23 km pour chauffer 1 million d' habitants.
China starts building long-distance nuclear heating pipeline

17 February 2023

Construction has begun of a 23-kilometre-long pipe that will transport nuclear-generated heat from the Haiyang nuclear power plant in China's Shandong province to a wider area, State Power Investment Corp (SPIC) announced. The plant started providing district heat to the surrounding area in November 2020.

A ceremony was held on 4 February in the city of Yantai, near the Haiyang plant, to mark the start of construction of a pipeline to the city of Weihai.

"The heat pipe network marks the official start of China's first long-distance nuclear energy heat supply pipeline network project across prefecture-level cities," SPIC said. "It will realise cross-regional intercommunication and sharing of zero-carbon heat sources."

So far, the nuclear energy heating source project has completed an investment of CNY390 million (USD57 million), the company said. Installation of equipment at unit 2 of the Haiyang plant to extract heat began in July last year and has now been completed. The heating pipe network and pumping station in the plant are now being constructed.

The project is planned to be put into operation before the end of 2023, SPIC said.

The long-distance pipeline will have an annual heating capacity that can reach 9.7 million gigajoules, providing heat to a 13 million square metre area and meeting the needs of 1 million residents. This will replace the consumption of some 900,000 tonnes of coal, reducing carbon dioxide emissions by 1.65 million tonnes.

The Haiyang plant officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. Earlier in 2020, the project began providing heating to the entire Haiyang city.

The first phase of a district heating demonstration project at the Qinshan nuclear power plant in China's southern Zhejiang Province was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy-generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have a nuclear heating area of ​​4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

Russia, several East European countries, Switzerland and Sweden have all had nuclear-fuelled district heating schemes, and heat from nuclear power plants has also been sent to industrial sites in several countries.
https://www.world-nuclear-news.org/Arti ... ear-heatin

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Re: Le nucléaire en Chine

Message par energy_isere » 11 mars 2023, 15:41

suite de ce post du 9 juillet 2022 viewtopic.php?p=2346851#p2346851
Reactor building internal structures completed at Chinese SMR

09 March 2023

The completion of the main internal structure of the reactor building for the ACP100 small modular reactor (SMR) demonstration project at the Changjiang nuclear power plant has been announced by China National Nuclear Corporation (CNNC).

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The construction site of the ACP100 at Changjiang (Image: CNNC)

CNNC said the pouring of concrete for the wall panels over 7 metres above the internal structure of reactor building "creates good conditions for the subsequent introduction of main equipment and the hoisting of the steel containment top head".

Compared with traditional nuclear power technology, "miniaturisation, modularisation, and integration" are the outstanding features of the ACP100 reactor - also referred to as the Linglong One - according to CNNC. "Its main body is wrapped in a steel safety shell, and the overall thickness of the concrete floor is over 7.5m. Because it has dense steel bars and many pre-embedded items, a small space structure and other characteristics, the construction is extremely complex," it added.

CNNC announced in July 2019 the launch of a project to construct an ACP100 reactor at Changjiang on China's island province of Hainan. The site is already home to two operating CNP600 PWRs, while the construction of the two Hualong One units began in March and December 2021. Both those units are due to enter commercial operation by the end of 2026.

First concrete for the multi-purpose 125 MWe pressurised water reactor (PWR) was poured on 13 July 2021, with a planned total construction period of 58 months. The final tank of concrete for the underground retaining walls of the conventional island of the reactor was poured in August last year. Equipment installation work commenced in December.

Under development since 2010, the ACP100 integrated PWR's preliminary design was completed in 2014. The major components of its primary coolant circuit are installed within the reactor pressure vessel. In 2016, the design became the first SMR to pass a safety review by the International Atomic Energy Agency.
https://www.world-nuclear-news.org/Arti ... mpleted-at

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Re: Le nucléaire en Chine

Message par energy_isere » 25 mars 2023, 16:18

suite de ce post du 14 mai 2022 viewtopic.php?p=2343225#p2343225

Début de construction du réacteur n° 4 de Sanmen :
Construction starts on fourth Sanmen unit

22 March 2023

The first concrete has been poured for the nuclear island of unit 4 at the Sanmen nuclear power plant, China National Nuclear Corporation (CNNC) has announced. It marks the official start of construction of the second of two CAP1000 pressurised water reactors planned as Phase II of the site in China's Zhejiang province.

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First concrete is poured for Sanmen unit 4 (Image: CNNC)

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https://www.world-nuclear-news.org/Arti ... anmen-unit

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