Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

Shimane 3 Nuclear Power Plant, Japan

Shimane 3 Nuclear Power Plant, Japan

The ABWR reactor design with improved technology in electronics, computer, turbine and fuel was certified by the US Nuclear Regulatory Commission (NRC) in May 1997. The reactor has a very low core damage frequency of 1.6 x 10-7 per year. It features internal reactor circulation pumps, compact reactor building integrated with containment vessel .

Implications and Lessons for Advanced Reactor Design and .

Implications and Lessons for Advanced Reactor Design and .

The main tasks are (1) to remove residual heat from the reactor pressure vessel (RPV) in the long term, (2) fast shutdown and isolation of the reactor and (3) limit and reduce the primary circuit pressure. The system is designed to resist design earthquake, protection against sabotage, flooding and airplane crash.

New Gen III+ Reactor Power Plant Designs Economic .

New Gen III+ Reactor Power Plant Designs Economic .

2015-1-23 · new reactor. ORNL neither endorses this design nor has performed any design reviews to validate design improvements, design margins, or accident probabilities. The intent in compiling this information at this time is for the express purpose of constructing an internal.

Boiling Water Reactor Power Plant

Boiling Water Reactor Power Plant

2011-3-13 · Reactor core and internal structures of 1,100MWe class BWR reactor vessel are shown in Figure 3. In a reactor vessel, there are a reactor core that mainly consists of fuel assemblies and control rods in the center, equipment for generating steam for a turbine, such as a

(PDF) Nuclear energy: Basics, present, future

(PDF) Nuclear energy: Basics, present, future

pressure vessel and there cooled, both by the internal (water injection) and the external (cavity flooding) side. In the path of development of n uclear reactor generations, the last, future step in

ONR - Regulatory Observation and Resolution Plan

ONR - Regulatory Observation and Resolution Plan

2020-2-26 · UK ABWR Generic Site Envelope - Seismic Hazard Definition: RO-ABWR-0055: RO-ABWR-0055 res plan: RO-ABWR-0055 closure letter: Demonstration that adequate optioneering has been carried out for the removal of Spent Fuel from the Reactor Building: RO-ABWR-0056: RO-ABWR-0056 res plan: RO-ABWR-0056 closure letter

ABWR Reactor Building

ABWR Reactor Building

2019-5-1 · The image below shows the inside of a UK ABWR reactor building with explanations of some key components. . • For more information go to the Reactor Pressure Vessel page. Steam Dryer; Steam Separator. 4. Steam Separator. Fuel Assembly. 6. Fuel Assembly. Control Rod. 7. Control Rod. Reactor Internal Pump. 7. Reactor Internal Pump • For more .

Nuclear meltdown - WikiMili, The Best Wikipedia Reader

Nuclear meltdown - WikiMili, The Best Wikipedia Reader

2020-3-2 · Nuclear meltdown Last updated March 02, 2020 A simulated animation of a core melt in a Light Water Reactor after a Loss-of-coolant accident.After reaching an extremely high temperature, the nuclear fuel and accompanying cladding liquefies and flows to the bottom of the Reactor pressure vessel. Three of the reactors at Fukushima I overheated because the cooling systems failed after a tsunami .

Economic Simplified Boiling-Water Reactor Design Certification

Economic Simplified Boiling-Water Reactor Design Certification

Information relating to the analysis and design of the reactor building is provided in DCD Sections 3.7 and 3.8 and Appendices 3A, 3B, 3F, and 3G. Through analysis and review of the design, the NRC determined that the reactor building and the concrete containment are structurally adequate to .

Advanced Nuclear Power Reactors | Generation III+ Nuclear .

Advanced Nuclear Power Reactors | Generation III+ Nuclear .

The basic Gidropress reactor is V-510. It has upgraded pressure vessel, increased power to 3300 MWt and 1255 MWe gross (nominally 1300, hence VVER-1300), improved core design still with 163 fuel assemblies to increase cooling reliability, larger steam generators, further development of passive safety with 72-hour grace period requiring no .

European Pressurized Reactor : definition of European .

European Pressurized Reactor : definition of European .

The EPR is a third generation pressurized water reactor (PWR) design. It has been designed and developed mainly by Framatome (now Areva NP), Electricité de France (EDF) in France, and Siemens AG in Germany. This reactor design was called in Europe European Pressurized Reactor, and the internationalized name of this reactor is Evolutionary Power Reactor, but is now simply named EPR .

Nuclear meltdown - WikiMili, The Best Wikipedia Reader

Nuclear meltdown - WikiMili, The Best Wikipedia Reader

2020-3-2 · Nuclear meltdown Last updated March 02, 2020 A simulated animation of a core melt in a Light Water Reactor after a Loss-of-coolant accident.After reaching an extremely high temperature, the nuclear fuel and accompanying cladding liquefies and flows to the bottom of the Reactor pressure vessel. Three of the reactors at Fukushima I overheated because the cooling systems failed after a tsunami .

New Reactor Design and Regulation - UFDC Home

New Reactor Design and Regulation - UFDC Home

2019-12-16 · Dose to Workers ABWR Task Location Percent of Total Estimated Annual (man rem) Drywell 46.7% 46.2 Reactor Building 14.7% 14.5 Radwaste Building 10.6% 10.5 Turbine Building 11.8% 11.7 Work at Power 16.2% 16 Total 98.9 Technology Maturity The ABWR is the only design evaluated in th is study that has opera ting experience.

NAE Website - Licensing and Building New Nuclear .

NAE Website - Licensing and Building New Nuclear .

Licensing and Building New Nuclear Infrastructure. Sunday, December 1, 2002. . as well as most balance-of-plant equipment) for its advanced boiling water reactor (ABWR) can be produced in the United States. However, the reactor pressure vessel and the large internal components (the same components used for Japanese and Taiwanese ABWRs) will .

ABWR passes UK GDA step 2, but full PSA needed - Nuclear .

ABWR passes UK GDA step 2, but full PSA needed - Nuclear .

"The basic layout of an ABWR comprises a reactor building, control building and turbine building, the configuration of which is site dependant, however they are located immediately adjacent to each other. "The major part of the reactor building is the Reinforced Concrete Containment Vessel (RCCV), which contains the Reactor Pressure Vessel (RPV).

Mechanical Engineering Journal

Mechanical Engineering Journal

The design concepts of a reactor vessel (RV) and its internal structures have been investigated whether they could withstand severe seismic conditions in Japan and thermal loads. The design adopted enhanced RV support structure, enhanced conical-shaped core support structure, a thickened knuckle part of the RV, and a flat plenum separator with .

Economic Simplified Boiling-Water Reactor Design Certification

Economic Simplified Boiling-Water Reactor Design Certification

End Further Info End Preamble Start Supplemental Information SUPPLEMENTARY INFORMATION: On August 24, 2005, in accordance with subpart B of 10 CFR part 52, GEH tendered its application for certification of the Economic Simplified Boiling-Water Reactor (ESBWR) standard plant design (ADAMS Accession No. ML052450245) with the NRC. The NRC staff .

ABWR Reactor Building

ABWR Reactor Building

2019-5-1 · The image below shows the inside of a UK ABWR reactor building with explanations of some key components. . • For more information go to the Reactor Pressure Vessel page. Steam Dryer; Steam Separator. 4. Steam Separator. Fuel Assembly. 6. Fuel Assembly. Control Rod. 7. Control Rod. Reactor Internal Pump. 7. Reactor Internal Pump • For more .

Control Rods - Nuclear Power

Control Rods - Nuclear Power

2 days ago · Control rods are rods, plates, or tubes containing a neutron absorbing material (material with high absorbtion cross-section for thermal neutron) such as boron, hafnium, cadmium, etc., used to control the power of a nuclear reactor.By absorbing neutrons, a control rod prevents the neutrons from causing further fissions.. Control rods usually constitute cluster control rod assemblies and are .

Advanced LWRs - MIT OpenCourseWare

Advanced LWRs - MIT OpenCourseWare

2020-7-10 · Reactor pressure, MPa 15.5 15.5 Total RCS volume, m3 350 460 . against internal hazards (e.g. fire) Shield building extends airplane crash and . Pressure vessel Large vessel with large water inventory + no large Vessel support Control rod piping = no core uncovery

Mechanical Engineering Journal - JST

Mechanical Engineering Journal - JST

Comparative study on neutronics characteristics of a 1500 MWe metal fuel sodium-cooled fast reactor Kazuya OHGAMA, Gerardo ALIBERTI, Nicolas E. STAUFF, Shigeo OHKI, Taek K. .

EPR (nuclear reactor) — Wikipedia Republished // WIKI 2

EPR (nuclear reactor) — Wikipedia Republished // WIKI 2

2020-4-17 · The EPR is a third generation pressurised water reactor (PWR) design. It has been designed and developed mainly by Framatome (part of Areva between 2001 and 2017) and Électricité de France (EDF) in France, and Siemens in Germany. In Europe this reactor design was called European Pressurised Reactor, and the internationalised name was Evolutionary Power Reactor, but it is now .

International Atomic Energy Agency | Atoms for Peace and .

International Atomic Energy Agency | Atoms for Peace and .

2020-8-16 · The IAEA is the world's centre for cooperation in the nuclear field, promoting the safe, secure and peaceful use of nuclear technology. It works in a wide range of areas including energy generation, health, food and agriculture and environmental protection.

Mechanical Engineering Journal - JST

Mechanical Engineering Journal - JST

Comparative study on neutronics characteristics of a 1500 MWe metal fuel sodium-cooled fast reactor Kazuya OHGAMA, Gerardo ALIBERTI, Nicolas E. STAUFF, Shigeo OHKI, Taek K. .

Control Rods - Nuclear Power

Control Rods - Nuclear Power

2 days ago · Control rods are rods, plates, or tubes containing a neutron absorbing material (material with high absorbtion cross-section for thermal neutron) such as boron, hafnium, cadmium, etc., used to control the power of a nuclear reactor.By absorbing neutrons, a control rod prevents the neutrons from causing further fissions.. Control rods usually constitute cluster control rod assemblies and are .

The  Advanced Boiling Water Reactor | Energy Matters

The Advanced Boiling Water Reactor | Energy Matters

The first of these is in the Core and the Reactor Pressure Vessel (RPV). As the majority of the core of a BWR isn't submerged under liquid water – instead, it's immersed in liquid at the base, with a rising column of "bubbly" steam and water of declining density we move up the core – it operates at somewhat lower power density than .

BWR Description - MIT OpenCourseWare

BWR Description - MIT OpenCourseWare

2020-7-10 · St System pressure, MP MPa 7 7.136 Core thermal power, MW. th . 3323 Electric power, MWe 1130 Thermal efficiency, % 34 Vessel ID / Thickness / Heigg, ht, m 6.4 / 0.16 / 22 Core shroud diameter, m 5.2 Number of fuel assemblies 764 Core mass flow rate, kg/s 13702 Core inlet temperature, ºC 278.3 Core outlet temperature, ºC 287.2

Fine motion control rod drives FMCRD are introduced in the .

Fine motion control rod drives FMCRD are introduced in the .

Fine motion control rod drives (FMCRD) are introduced in the ABWR. The control rods are scrammed hydraulically but can also scrammed by the electric motor as a backup. The FMCRDs have continuous clean water purge to keep radiation to very low levels. BWR ABWR Reactor pressure vessel Reactor pressure vessel Scram water inlet Insertion side Withdrawal side Motor Hydraulic drive Motor + .

Superheated Water-Cooled Small Modular Underwater Reactor .

Superheated Water-Cooled Small Modular Underwater Reactor .

2016-12-1 · Improving the economic performance of small modular reactors (SMRs) is key for allowing their deployment. The Felxblue, a 160-MWe SMR designed by DCNS, is an off-shore underwater reactor using the traditional PWR technology and layout .While Flexblue utilizes technology-ready and proven systems, the design is within a large expensive hull with the LWR pedestrian thermodynamic .

EDF takes over UniStar - Nuclear Engineering International

EDF takes over UniStar - Nuclear Engineering International

The containment vessel is a cylindrical steel-lined reinforced concrete structure integrated with the reactor building. The DCD describes a nuclear plant with a NSSS thermal power rating of up to 4,500 megawatts thermal (MWt). . As the primary system pressure falls to the drywell pressure, water makeup to the reactor vessel is provided by .