Analysis and Research on the Requirements and Applicability of “Hualong-1” Commissioning Standards

2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Xiaoshi Jin ◽  
◽  
Chuangbin Zhou ◽  
Keyword(s):  
United States ◽  
Nuclear Power ◽  
Thermal Power ◽  
Electric Power Industry ◽  
The United States ◽  
Power Industry ◽  
Standard System ◽  
Industry Research ◽  
Data Collection And Analysis ◽  
Source Countries

Chinese nuclear power standards are parallel due to a variety of technical routes and different technology source countries, resulting in a situation of multiple standards parallel in the domestic nuclear power industry. Through the comparative analysis of nuclear power standards in the United States and France, domestic electric power industry and domestic conventional thermal power industry, this paper seeks for the combination point with domestic nuclear power commissioning standard system, and combs and analyzes the existing standard system. Through industry research and data collection and analysis, combined with the technical characteristics of “Hualong-1”, the requirements and applicability elements of the commissioning standard system are determined, the framework of the commissioning standard system is optimized and improved, and the corresponding standard acquisition, formulation and revision plan of the standard system is formed, so as to guide the construction of commissioning standardization.

The Outline of the Five-Percent Power Uprate Project in Tokai-2

2010 ◽  
Author(s):  
Hitoshi Ohata ◽  
Toshikazu Nishibata ◽  
Tetsuya Onose
Keyword(s):  
United States ◽  
Electric Power ◽  
Power Output ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Thermal Power ◽  
The United States ◽  
European Countries ◽  
Electric Power Output

Reactor thermal power uprate (Power uprate) of operating light water reactors has long successful experiences in many nuclear power plants in the United States of America and European countries since late 1970’s. And it will be also introduced in Japan soon. This paper mainly describes the outline of the attempt of five-percent reactor thermal power uprate of Tokai No.2 Nuclear Power Station (Tokai-2) operated by the Japan Atomic Power Company (JAPC). It will be the leading case in Japan. Tokai-2 is GE type Boiling Water Reactor (BWR) of 1100 MW licensed electric power output and it commenced commercial operation in November 28, 1978. Power uprate is an effective approach for increasing electric power output. And it is recognized as one of the measures for effective and efficient use of existing Japanese operating nuclear power plants. It can contribute to inexpensive and stable electric power supply increase. Especially “Stretch Power Uprate (SPU)” requires only minor equipment modification or component replacement. It is also a countermeasure against global warming. Therefore it is a common theme to be accomplished in the near future for both Japanese electric power companies and government. JAPC started feasibility studies on power uprate in 2003. And in 2007, JAPC established a plan to achieve five-percent power uprate in Tokai-2 and announced this project to the public. This is a leading attempt in the Japanese electric power companies and it is the first case under the current Japanese regulatory requirements. In this plan, JAPC reflected lessons learned from preceding nuclear power plants in the United States and European countries, and tried to make most use of the performance of existing systems and components in Tokai-2 which have been periodically or timely renewed by utilizing more reliable and efficient design. JAPC plans to submit application documents to amend current License for Reactor Establishment Permit shortly. It will contain a complete set of revised safety analysis results based on the uprated reactor thermal power condition. Successful introduction of Tokai-2 power uprate will contribute to the establishment of regulatory process for power uprate in Japan and following attempts by other Japanese electric power companies.

scholarly journals Desulfurization Electricity Price and Emission Trading：Comparative analysis of thermal power industry in China and the United States

2019 ◽  
Vol 158 ◽  
pp. 3513-3518 ◽  
Author(s):  
Di Chen ◽  
Kai Zhou ◽  
Xue Tan ◽  
Zaixu Zhou ◽  
Lei Shi ◽  
...  
Keyword(s):  
United States ◽  
Thermal Power ◽  
The United States ◽  
Power Industry ◽  
Electricity Price

Identification and Resolution of Piping Analysis Activities for Extended Power Uprates at Nuclear Plants

2002 ◽  
Author(s):  
Dilip Bhavnani
Keyword(s):  
United States ◽  
Nuclear Power ◽  
Power Plants ◽  
Power Level ◽  
Thermal Power ◽  
The United States ◽  
Nuclear Industry ◽  
Recent Experience ◽  
Technological Advances ◽  
Limited Power

Recent experience has shown that many utilities have installed new feedwater flow measurement instrumentation, which is designed with new, proven technology that more accurately monitors feedwater flow and therefore, allows for improved thermal power level calculations. As a result of this new approach, many utilities have been able to extend limited power upgrades to the tune of 1.4%, and yet with no noticeable additional environmental impact. These electric power increases are generally attributable to the large design margins included in the original nuclear power plant designs and in addition, to the technological advances that have been made to the nuclear industry. Power increases are now carried out by several nuclear utilities in the United States with the NRC’s concurrence. Current nuclear power plants are providing cheap, reliable and affordable electricity to help meet current energy growing demands. As a result of this, power uprate increases are encouraged. Current economic conditions strongly favor power uprates and plant life extensions. In the early 1990s, a limited power uprate program was initiated, but due to complex design reviews, this was not steadfastedly recommended during this time period. Nuclear Steam Supply Systems (NSSS) vendors performed a key role in this nuclear power uprate program. This paper discusses structural and piping qualification review required to achieve these power uprate programs, currently being performed by nuclear utilities in the United States.

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