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Mitsubishi Advanced PWR Plant
A prudent development of APWR has been performed, based on the results of the third improvement and standardization program by joint effort of the public and private sectors, which began in 1982, adopting experiences in operation and maintenance of conventional PWR plants and the state of the art technologies, and incorporating the technologies of further advancement. For APWR, MHI strived to achieve the harmonization with the environment, enhanced safety, improved reliability and economy, and enhanced operability and maintainability to meet the need of the times. The APWR plants were selected for Tsuruga units 3 and 4, scheduled to begin operation in 2016 and 2017.
Improved Economy Enhanced Safety Improved Reliability Advanced Operability and Maintainability Harmonization with the Environment
* Compilation of Mitsubishi PWR plant technologies *

Compilation of the plant technologies(design, manufacturing, installation, operation and maintenance) adopted in the previously built 23 units
Construction place of domestic Mitsubishi PWR plant
Since the introduction of foreign technologies for the first-generation plants, Mitsubishi has been working on independently upgrading of technologies and enhancement of economy in second and third generation plants.

Through further efforts of improvement and development, Mitsubishi compiled these efforts into the fourth generation advanced PWR plants.
Transition of technology
System configuration of APWR plant

Advanced PWR(APWR) plants, based on the current 4-loop plants that have a plenty of operating experience and excellent characteristics, adopt high-performance large capacity equipments to improve the reliability and safety features, such as enhanced defense in-depth, as well as have a simplified system configuration that can facilitate operating management
[figure]System configuration of APWR plant
[figure]System configuration of APWR plant
[figure]System configuration of APWR plant
World state-of-the-art large capacity plant
  • Electrical output attained a large capacity with 30 percent improvement(1,530 MWe), as compared to the current 4 loop.
  • Larger major components accommodating to the increased output
  • Adopted high-performance reactor core, enabling MOX and long cycle operation
  • Installed high-performance instrumentation & control system by adopting integrated digital equipments.
 [figure]Pursue of economical efficiency
2.Pursue of economical efficiency
  • Further enhancement of economy and effective sitting became of scaling-up of capacity
  • Pursued simplified systems and components thoroughly
  • components thoroughly
 [figure]Pursue of economical efficiency
Mitsubishi Advanced PWR Plant meets the need of the times

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1.Improved Economy
5.Harmonization with the Environment 2.Enhanced Safety
4.Advanced Operability and Maintainability 3.Improved Reliability
 

*1.Improved Economy

Nuclear Energy Systems Headquarters

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