RCSLK9, reactor coolant system leak rate determination for PWRs

user"s guide by D. C Kirkpatrick

Publisher: Division of Emergency Preparedness and Engineering Response, Office of Inspection and Enforcement, U.S. Nuclear Regulatory Commission in Washington, D.C

Written in English
Published: Downloads: 964
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Subjects:

  • Pressurized water reactors -- Loss of coolant -- Computer programs

Edition Notes

StatementD.C. Kirkpatrick, R.W. Woodruff, R.A. Holland
ContributionsWoodruff, R. W, Holland, R. A, U.S. Nuclear Regulatory Commission. Office of Inspection and Enforcement. Division of Emergency Preparedness and Engineering Response
The Physical Object
Pagination1 v. (various pagings) :
ID Numbers
Open LibraryOL14948155M

Leak rate margins over the # 1 seal reduce proportional with the reduction of RCS pressure. At Surry, typical flow alarm settings under hot operation are between l/min ( US GPM) at MPa. The reactor coolant pump is “the heart” of a nuclear reactor and the only high-speed revolving equipment in a pressurized water reactor primary cooling loop system. The accurate prediction of flow and pump transient performance, during start-up transients, is a very important factor in the reactor coolant pumps design and the nuclear Cited by:   A pressurized-water reactor coolant treatment system continuously removes a portion of the coolant circulating in the main coolant loop and passes it through a gas separator and a rectification column, among other equipment, and returns the coolant to the main coolant loop. Reactor Coolant Pressure Boundary (RCPB) leak detection is specified in the Code of Federal Regulations, Ti Part 50 (10CFR50), Appendix A, Criterion * Detection of leakage from pressurized pipes and vessels is needed because small leaks may.

  Reactor Coolant Pumps for AP still a problem. Aug All eight AP construction projects are at risk “for want of a nail.” In this case the nail is a reactor coolant pump, the largest one in the world, high temperature coolant system into the pump motor, but it . integrity of piping in BWRs and steam, generators in PWRs. Intergranular stress corrosion cracking has been a major problem in BWRs, affecting almost the entire reactor system and particularly the primary recirculation piping systems and reactor water clean-up systems. A correlation between extent of cracking and poor water quality has been. A reactor coolant picks up the heat from fuel elements in the reactor core and carries it to the boilers where it gives up that heat to water carried in pipes to turn it into steam. The efficiency of this process depends upon the flow rate of the coolant, the flow cross-section of the fuel element, the difference in temperature between the. The Reactor Coolant Injector is a machine that repairs condensators in a Nuclear Reactor, in support of Single-Use Coolant Configuration or SUCC design.. Recipe. There are currently two versions of the coolant injector, RSH and LZH, which repair the RSH-Condensator and LZH-Condensator respectively.. As of ex they are still two separate machines, but one of the developers has said Durability: {{{durability}}}.

A critical component of the Pressurized Water Reactor (PWR), seen in Fig. 1, is the PWR Reactor Coolant System. The system has three major functions: Transferring the heat from the reactor for the steam generator, maintaining the pressure within acceptable . RC - Reactor Coolant. Looking for abbreviations of RC? It is Reactor Coolant. Reactor Coolant listed as RC Rate of Clearance: RC: Robert College (Istanbul, Turkey) RC: Requirements Contract: RC: Reactor Coolant System Integrity; reactor core; reactor core; Reactor Core Isolation Cooling;. in Mev/em';Ea is the recovered fission energy which is Mev and ex represents the portion of this energy deposited in the fuel. To express Eqs. and in W/cm'or in kW/mJ, they should be multiplied by x or x'o, respectively. Defining the neutron flux weighted aver­. The RUV is a reactor coolant pump, specially designed for the Westinghouse AP reactor. It is a hermetically sealed, wet winding motor pump. The RUV is a very compact, vertical pump/motor unit, designed to fit into the compartment next to the reactor pressure vessel (Fig. 1). Each of the two steam generators has two pumpFile Size: KB.

RCSLK9, reactor coolant system leak rate determination for PWRs by D. C Kirkpatrick Download PDF EPUB FB2

@article{osti_, title = {RCSLK9: reactor coolant system leak rate determination for PWRs. User's guide}, author = {Kirkpatrick, D C and Woodruff, R W and Holland, R A}, abstractNote = {RCSLK9 is a computer program that was developed to analyze the leak tightness of the primary cooling system for any pressurized water reactor.

From system conditions, water levels in tanks, and certain. Abstract. RCSLK9 was developed to analyze the leak tightness of the primary coolant system for any pressurized water reactor (PWR).

From given system conditions, water levels in tanks, and certain system design parameters, RCSLK9 calculates the loss of water from the reactor coolant system (RCS) and the increase of water in the leakage collection system during an arbitrary time interval.

Get this from a library. RCSLK9, reactor coolant system leak rate determination for PWRs: user's guide. [D C Kirkpatrick; R W Woodruff; R A Holland; U.S. Nuclear Regulatory Commission.

Office of Inspection and Enforcement. Division of Emergency Preparedness and Engineering Response.]. Get this from a library. RCSLK9: reactor coolant system leak rate determination for PWRs: user's RCSLK9 installation procedures.

[D C Kirkpatrick; R W Woodruff; P Bell; U.S. Nuclear Regulatory Commission. Office of Inspection and Enforcement. Division of Emergency Preparedness and Engineering Response.].

Nuclear reactor - Nuclear reactor - Coolant system: The function of a power reactor installation is to extract as much heat of nuclear fission as possible and convert it to useful power, generally electricity. The coolant system plays a pivotal role in performing this function.

A coolant fluid enters the core reactor coolant system leak rate determination for PWRs book low temperature and exits at a higher temperature after collecting the fission energy. The reactor coolant pump, which is a vertical-type single-stage, circulates the coolant for heat transfer to a steam generator, and flow the coolant back into a nuclear reactor.

A nuclear reactor coolant is a coolant in a nuclear reactor used to remove heat from the nuclear reactor core and transfer it to electrical generators and the ntly, a chain of two coolant loops are used because the primary coolant loop takes on short-term radioactivity from the reactor.

Reactor Coolant Pump: The Reactor Coolant Pump circulates the water through the Reactor Coolant System. These pumps generally pump at a rate of almostgallons per minute.

Click the figure to see a 51K detailed drawing of the Reactor Coolant Pump with parts identified. Graphics courtesy Westinghouse: Reactor. Reactor Coolant Pumps Each reactor coolant pump (RCP) is a high-inertia, high-reliability, low-maintenance, hermetically sealed canned-motor pump that circulates reactor coolant through the RV, loop piping, and SGs.

The AP design uses four RCPs. Two pumps are coupled with each SG. The pumps are integrated into the SG channel head.

PWR Primary Water Chemistry Guidelines Volume 1, Revision 4 TRV1R4 Final Report, March EPRI Project Manager State-of-the art water chemistry programs help ensure the continued integrity of reactor coolant system (RCS) materials of construction and fuel cladding, ensure satisfactory and radiation dose rate issues.

From these File Size: 2MB. Loss of Reactor Coolant Pump Small LOCA Valves Open Bringing the Reactor to Full Power Large LOCA Main Steam Line Break 2 3 1 4 LOCAs without ECCS Transients with Total Loss of ON- and Off-Site Power 5 Figure by MIT OCW. After Lillington, Reactor Coolant System Weld Issues Operating experience has shown instances of primary water stress-corrosion cracking (PWSCC) in various welds in the reactor coolant system (RCS) within the reactor pressure boundaries of certain pressurized-water reactors (PWRs).This page provides details regarding specific instances of these weld issues at Virgil C.

Summer Nuclear Power Station (V.C. Summer. A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications.

Metal coolants remove heat more rapidly and allow much higher power density. generators, the reactor coolant pumps, a pressurizer, and the connecting piping.

A reactor coolant loop is a reactor coolant pump, a steam generator, and the piping that connects these components to the reactor vessel.

The primary function of the reactor coolant system is to transfer the heat from the fuel to the steam Size: KB. Curtiss-Wright Flow Control – EMD and Westinghouse Electric Company LLC say they are continuing testing of the world’s largest canned-motor reactor coolant pump (RCP) for the AP During testing on 13 May, testing of the AP pressurized water reactor RCP was successfully completed in ambient operating conditions.

At normal operation, there is a compressed liquid water inside the reactor vessel, loops and steam generators. The pressure is maintained at approximately this pressure water boils at approximately °C (°F).

Inlet temperature of the water is about °C (°F). The water (coolant) is heated in the reactor core to approximately °C (°F) as the water flows through the core.

A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a self-sustained nuclear chain r reactors are used at nuclear power plants for electricity generation and in nuclear marine from nuclear fission is passed to a working fluid (water or gas), which in turn runs through steam turbines.

Types of Reactor Cooling Systems. The Reactor Cooling System design varies with type: Pressurized Water Reactors-includes PWR, VVER, and CANDU; This design uses high pressure ( to pounds per square inch) piping nominally to 3 feet ( to 1 meter) in diameter.

Two figures of the Reactor Coolant System are linked. Reactor Coolant delta T – Energy Balance. Another very useful relation is that the thermal power produced by a reactor is directly related to the mass flow rate of the reactor coolant and the temperature difference across the core.

CHAPTER E: THE REACTOR COOLANT SYSTEM AND RELATED SYSTEMS SUB-CHAPTER E DESCRIPTION OF THE REACTOR COOLANT SYSTEM 1. FUNCTIONAL ROLE The Reactor Coolant System (RCP) [RCS] fulfils the following functions: a) Radioactivity boundary The RCP [RCS] serves as a boundary against leaks of radioactive products in the event of fuel cladding Size: KB.

CHAPTER 7 THERMAL-HYDRAULIC ANALYSIS The coolant in the pressure tube of the CANDU nuclear reactor core removes the thermal energy produced in the nuclear fuel. The rate and form of energy transfer from the nuclear fuel through the cladding and to the coolant is strongly depend­ ent upon the local thermal and hydraulic Size: KB.

OPERATIONAL REACTOR SAFETY Exam #2 is 2 days after Ses #24 Open Book Examination # 2 Hours Nuclear Safety Segment Problem # 1 (70%) (Please read the entire question and then think through the answers logically) The Zion Nuclear Power Plant (Westinghouse) is operating at full power.

Reactor Coolant a liquid or gaseous substance that is passed through the core of a nuclear reactor and removes from the core the heat released as a result of the fission reaction. In power reactors, the coolant flows from the reactor to a steam generator, where steam is produced to drive the turbine.

Alternatively, the coolant itself, whether steam or. The thermal barrier is designed to cool RCS liquid when #1 seal leak-off flow is in the normal range (approx. 3 gpm). At higher leak-off flows the pump lower bearing and seals are subjected to high temp until #1 leak-off is isolated.

When leak-off is isolated the #2 seal will become the primary seal and be exposed to full RCS pressure. CFD analysis of coolant flow in the nuclear reactor VVER J. Katolický a,*, M several calculations were performed for various number of the reactor coolant system (RCS) loops con- of the reactor and under the reactor vessel head and, also, the influence of a lower flow rate through the reactor on thermal homogeneity of coolant under.

The Reactor Coolant Port is a Block used in the construction of Reactor Structures from Big Reactors. It provides an interface for pumping coolant in and superheated steam out of the Reactor. Installing one or more of these on a reactor will change it from producing energy to producing t Name: reactorCoolantPort.

Between andthe average unidentified leakage from the reactor coolant system was less than gallons per minute. This increased to in through mid-File Size: KB.

The injection of a soluble zinc additive to the reactor coolant of PWRs has been used for the purpose of radiation field reduction, general corrosion control, and primary water stress corrosion cracking PWSCC mitigation. In the PWR system, water is used as the reactor by: 7.

within the affected part of the Reactor Coolant Pressure Boundary. Even if the leak is timely detected, there is usually a significant impact on the overall radioprotection of the plant. In some cases, the total reactor coolant loss is important and prolonged outage periods are required for recovery.

Nuclear reactor - Nuclear reactor - Thermal, intermediate, and fast reactors: Reactors are conveniently classified according to the typical energies of the neutrons that cause fission.

Neutrons emanating in fission are very energetic; their average energy is around two million electron volts (MeV), nearly 80 million times the energy of atoms in ordinary matter at room temperature. Standards Series No. NS-G, Design of the Reactor Coolant System and Associated Systems in Nuclear Power Plants, and supersedes it.

OBJECTIVE The purpose of this Safety Guide is to provide recommendations and guidance to regulatory bodies, nuclear power plant designers and licensees on the design of the Reactor Coolant System (RCS) and.1. REACTOR COOLANT PUMPS DESCRIPTION OF REACTOR COOLANT PUMPS The reactor coolant pumps (GMPP) [RCP] are assigned at RCC-M level 1 (see sub-chapter B.6).

The detailed list of level 1 GMPP [RCP] assembly components is shown in table E TAB 2. The design of EPR reactor coolant pumps is based on the N4 reactor coolant pumps.Design of the reactor coolant system and associated systems in nuclear power plants.

— Vienna: Internat ional Atomic Energy Agency, p. ; 24 cm. — (Safety standards series, ISSN –X ; no. NS-G) STI/PUB/ ISBN 92–0––0 Includes bibliographical references.

1. Nuclear power plants — Design and construction.