The wide range of functions exceed most converter tools and bring your pdf converting to the next level. December 1, 2010, westinghouse submitted revision 18 to the ap dcd. The nuclear regulatory commission nrc or commission is amending its regulations to certify the ap standard plant design. Apr 07, 2010 by design, the ap containment has an even higher vulnerability to corrosion than containment systems of current reactor designs because the outside of the ap containment is subject to a highoxygen and highmoisture environment conducive to corrosion and is prone to collect moisture in numerous inaccessible. Generic design assessment ap nuclear power plant design. As a safety enhancement, there are no reactor vessel penetrations below the top of the core. A bittersweet milestone for the worlds safest nuclear reactors. The ap is a nuclear power plant designed and sold by westinghouse electric company. The sanmen 1 nuclear reactor in zhejiang, china, has been synchronized to the power grid and is generating power. Design acceptance confirmation issued in march 2017.
In the ap reactor heat is dissipated by atmospheric air passing into the space between the steel containment vessel and the concrete shield building the annular space and out of the top of the shield building. The following links on this page are to adobe portable document format pdf files. Structural design and modular construction approach for the. This action is necessary so that applicants or licensees intending to construct and operate an ap design may do so by referencing this regulation ap design certification rule dcr. The ap plant safetyrelated passive systems and equipment are sufficient to automatically establish and maintain core cooling and containment integrity indefinitely following designbasis events, assuming the most limiting single failure, with no operator action, and no onsite or offsite ac power sources. They are also functionally integrated to enhance responsiveness during plant tra nsients. On the westinghouse ap sale to china and its possible. As discussed at page 10,271 of the ap rulemaking notice, the ap dcd has been referenced in col applications for several proposed reactors, each incorporating various revisions of the ap dcd as reference documents. Nrc slams westinghouse aps flawed design two new reactor designs were forecast at least in europe and northamerica make the nuclear renaissance happen. Canned motor pumps have been used in thirdgeneration nuclear power plants, such as the westinghouse ap advanced passive plant 1 and the snptc state nuclear power technology corporation. Ultimately, the goal of assessment is to reach an independent and informed judgment on the adequacy of safety in the generic design.
These relate to providing further information and resolving technical issues for a sitespecific design. Last june, casl launched its first virtual environment for reactor applications vera test stand on the westinghouse engineering computer cluster. Regulatory justification decisions on nuclear reactors. Instrumentation and controls ap design control document. There are also tanks holding about 1,500m3 of water located at the top of the concrete shield.
The first ap was expected to start operations in 2017 in china at the sanmen nuclear power station. Nuclear giant westinghouse files for bankruptcy after costs. The westinghouse small modular reactor wsmr builds upon the design concepts of the much larger ap reactor currently under construction in china and the united states. The aps ascent in china began in 2004 when the government launched a rigorous twoyear evaluation aimed at selecting an advanced western reactor design that would underpin its future. Ap nuclear power plant design by westinghouse electric company llc. The ap is a twoloop mwe pressurizer water reactor pwr. Regulatory justification decision on nuclear reactor. Federal register ap standard technical specifications. The ap reactor vessel design pressure and temperature is 2500 psia 17. The modular design of the mk1 reactor facilityprovides a revolutionary concept in. Conventional reactors rely on defenceindepth made up of layers of redundancy and diversity this is where, say, two valves are fitted instead of one. Heart of reactor system each plant site includes two reactors 4 rcps per reactor 8 rcps per plant site rcps pump primary coolant through the reactor core the rcp provides a life of the plant solution canned motor rcps improve reliability ap reactor core ap reactor coolant pump the rcp is in the heart of the. Westinghouse ap pressurized water reactor steam generator.
The ap nuclear reactor design executive summary the ap advanced passive nuclear reactor design has a weaker containment, and fewer backup safety systems than current reactor designs. Convert html to pdf, html to pdf converter pdfreactor. The eprdesign, is as we all know, under heavy fire, and now also from the french nuclear regulator see next article. Reactors are usually designed based on rate considerations.
Reactor design the ap reactor coolant pump motors are rated on the less dense hot water at operating temperature in lieu of although different from each other, the core, reactor the more dense ambient temperature water for the ap600. Generic design assessment ap nuclear power plant design by. Passive safety related systems the ap plant safety. Reconstitution is completed by the remounting of the nozzle assembly and the insertion of lock tubes.
The primary circuit of the ap reactor retains most of the general. Final assessment report disposability of ilw and spent fuel. Mladineo is a former nuclear submarine officer, and a u. Nuclear regulatory commission nrc is soliciting public comment on its generic technical specification travelers gtsts for the development of standard technical specifications sts for the ap certified reactor design based on the ap generic technical specifications gts. Reactors jordan university of science and technology. The plant is a pressurized water reactor with improved use of passive nuclear safety and many design features intended to lower its capital cost and improve its economics. Environment agency gda final assessment report ap04 page 3 of 56 generic design assessment. Westinghouse ap technical report office for nuclear. The ap control systems share a common hardware design and implementation philosophy. The ap design uses the passive core cooling system to provide emergency reactor coolant inventory control and emergency decay heat removal. The ap is a nuclear power plant designed and sold by westinghouse electric company, now majority owned by toshiba.
The reactor has been under construction for nine years and became the first ap in the world to achieve criticality on june 21, 2018. We identify these matters as assessment findings in our reports. The plant is a pressurized water reactor with improved use of passive nuclear safety. The core contains 157 fuel assemblies, similar to doel 4 and tihange 3. Westinghouse selected the ap pressurized water reactor pwr first core for the test stand simulation because its advanced. In the ap the water tank on top of the reactor, and the shield building could. Ap electrical systems zclass 1e dc and ups system ids 0provides electrical power to safety components znonclass 1e dc and ups system eds 0provides electrical power to nonsafety components requiring highlyreliable power zmain ac power system ecs 0provides bulk electrical power zonsite standby power system zos. The control rod system provides both manual and automatic control systems for.
Construction of the worlds first nuclear power plant to use u. Therefore,the team anticipates that these modules can be manufactured in the same factories that produce ap modules using computeraided manufacturing today, and will use similar design principles. The westinghouse ap program is aimed at making available a nuclear power plant that is economical in the us deregulated electrical power industry in the nearterm. For both, the reactor vessel is the same as that for a standard. With pdfreactor you count on a powerful html to pdf converter software. Westinghouse published its submission on its website. Breaks in lines of this size do not have to be postulated for dynamic effects. Comparison of small modular reactor and large nuclear reactor. Nuclear reactor types 3 the most widely used reactor type in the world is the pressurised water reactor pwr see fig 1. Nov, 20 introduction the westinghouse electric company llc westinghouse ap pressurized water reactor pwr reactor coolant system rcs is similar in design to the combustion engineering ce rcs design, with a reactor vessel rv housing the core, two steam generators sgs, four reactor coolant pumps rcps, and a pressurizer. Specific design requirements are imposed that limit the impact of individual equipment failures. To obtain a free viewer for displaying this format, see our plugins, viewers, and other tools. Major safety advances of the ap design over conventional plant designs include the following. There are some areas where work would be required by the operators if they decide to pursue construction of an ap reactor.
This report is the first of our public statements for the ap reactor designed by. On the westinghouse ap sale to china and its possible military implications by stephen v. Ap plant general overview and equipment qualification. Nugen preparing to apply for a nuclear site licence to build and operate three ap reactors at moorside in cumbria. Revision page assigned to open items yn ukpgwgl790 4 1 of 403 wruss n document status. China begins construction of worlds first ap reactor. B chapter name about the center on global energy policy the center on global energy policy provides independent, balanced, datadriven analysis to help. The ap diverse reactor trip actuation system is independent of the reactor. The ap tm is a twoloop pressurized water reactor pwr that uses a simplified, innovative and effective approach to safety.
Ap is designed around a conventional 2loop, 2 steam generator primary system configuration that is improved in several details. Reactor design although different from each other, the core, reactor vessel, and internals of both the ap600 and ap are essentially those of conventional westinghouse pwrs. The westinghouse smr was announced to be a 200 mwe integral pressurized water reactor using a derivative of ap fuel 12. Westinghouse ap nuclear reactor starts generating power. The two commercial reactor types based on this principle are both american designs, but are widely used in over 20 countries. If you want to convert a html file to pdf, if you use a webpage or rely on database publishing there is a way to turn even complex html into pdf. A bittersweet milestone for the worlds safest nuclear. Two commonly used reactors are the cstr continuous stirred tank reactor and the pfr plug flow reactor. Ap is rated at 3400 mwt core power and, depending on site conditions, nominally 1117 mwe. These reactors provide enough residence time for the reaction to take place with satisfactory conversion. The effect on the sump ph is even smaller, because the volume of reactor coolant in the reactor coolant system is a small fraction of the borated water volume entering the sump. Component design criteria have been established for the number of actuation cycles for the passive core cooling system. In this case the nail is a reactor coolant pump, the largest one in the world, equipment that evidently doesnt exist and for which there is only one supplier.
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