The research reactor simulator, developed by jozef stefan institute ijs is a realtime simulation code of a trigatype reactor in real time. The transients are related to partial and to total obstruction of the core coolant channels. Characterization of the triga mark ii reactor fullpower. Triga mark ii nuclear reactor illinois distributed museum. Dec 07, 2012 triga, pulse operation, nuclear reactor 240 mw, 7. Qaim4 1institute of nuclear science and technology inst, atomic energy research establishment, savar, gpo box3787, dhaka, bangladesh 2 department of applied chemistry and chemical engineering, university of rajshahi, bangladesh.
Source term evaluation for the triga markii research reactor of. Pdf nuclear reactor operation and control is a sophisticated system involving modern equipments and techniques. Pdf operation and control of triga nuclear research reactor. The former triga mark ii nuclear reactor advanced teaching research isotope general atomic at the university of illinois left a profound impact on nuclear engineering research and education. Puspati triga reactor rtp is a 1 mw thermal, pooltype research reactor fueled with uraniumzirconium hydride uzrh1. The group constants are calculated for every unit cell in dependence of.
Reactor characterization reactor model triga mark ii maximum power 1mw thermal steady state pulsing peak power 1200mw pulse width 11ms nuclear fuel uzrh1. Major facilities include the 250 kilowatt triga nuclear reactor, an accelerator mass spectrometer, a brain imaging center, and a national fuel cell research center. The triga mark ii research reactor in vienna has been operating since march 1962 with a thermal power of 250 kw. Global threat reduction initiative strategic plan january 2009 pdf. Triga is a class of nuclear research reactor designed and manufactured by general atomics. The side and the top views of the reactor are shown in figures 1 and 2. More detailed explanation is found in the following references. Students in the mne nuclear option utilize the reactor in two reactor operation laboratory classes, and as a neutron and gamma source for a radiationdetection course. Rtp incorporates facilities for advanced neutron and gamma radiation studies as well. This publication covers the historical development and basic characteristics, utilization, fuel conversion and ageing management of triga research reactors. Integral cross section measurements using triga reactor and ambe neutron source m. Apr 28, 2017 the kansas state university triga mk ii reactor provides services for education, research, and training, and outreach. In such reactors, the reaction rate expression must be known determined. The triga training research and isotope production general atomics mark ii is a research reactor designed and manufactured by general atomics.
The main part of the package is the triglav code based on two dimensional diffusion approximation for flux distribution calculation. Triga reactor maintenance shutdown program at least once during the requalification period each licensed sro shall perform duties at the afrri triga reactor facility, including the operation and maintenance of the afrri triga reactor facility, to ensure familiarization and retraining on a continuous basis. Triglav is a neutron diffusion code for triga reactor core calculations. Triga burnup calculations using serpent anze pungercic, dusan calic, luka snoj anze. Reactors jordan university of science and technology.
As the staff of triga facilities retire, there is an urgent need to gather their knowledge. An experiment is a specifically described and approved use of the ostr. My staff has determined that we do not have any comments for you on the draft ea. Source term atmospheric release and core inventory.
Large exposure rooms allow the flexibility of variable shielding configurations to customize the neutrongamma ratio. Reactor operator requalification program for the affri. Two commonly used reactors are the cstr continuous stirred tank reactor and the pfr plug flow reactor. Nuclear regulatory commission to operate at maximum steady state power of 1. Uruguay operated a research reactor, which has already been decommissioned. Calculation of control rod worth of triga mark ii reactor using.
Reactor operator program schedule each week will consist of a combination of activities from some or all of the following categories. Source term atmospheric release and core inventory analysis. Modeling a triga mark ii biological shield using mcnp5. The reactor was built to support the mnrc unique radiography bays which include the two largest neutron radiography bays in the world. The main specifications of rtp are presented in table 1. However, those triga reactors that are designed to be operated above 3 mw also use a triga fuel that is specifically designed for those higher power. The reactor is licensed to operate at up to 1250 kwth. This program package runs under microsoft windows operating system and has new friendly graphical user interface gui. The quantitative evaluation of the radionuclides inventories in nuclear reactors under routine and accidental conditions is one of the major. Triglavw is a program package for reactor calculations of triga mark ii research reactor cores. Triga mark ii research reactor at jozef stefan institute has been operating. Fir 1 triga mark ii research reactor decommissioning.
Triga reactors, research reactors, neutron and solid state physics, neutron interferometry, ultra smallangle neutron scattering. Power calibration of the triga mark i nuclear research reactor. Triga is a pooltype reactor that can be installed without a containment building, and is designed for research and testing use by scientific institutions and universities for purposes such as undergraduate and graduate education, private commercial research, nondestructive testing and isotope production the triga reactor uses uranium zirconium hydride uzrh fuel, which has a large. Triga nuclear reactors gas triga training, research, isotopes, general atomics reactor is the most widely used nonpower nuclear reactor in the world. The kansas state university triga mk ii reactor provides services for education, research, and training, and outreach. The multipurpose, pooltype triga reactor will be fueled with highdensity, lowenriched 19. Neutronics analysis of triga mark ii research reactor sciencedirect. Ravnik, nuclear safety parameters of mixed triga cores, workshop on reactor physics calculations, 12 february to march 1990, ictp, trieste, proceedings. The most significant difference between the two are that forced reactor cooling and an emergency core cooling system are generally required for the higher power triga reactors. Fir 1 triga type research reactor fir1 triga mark ii reactor is entirely above ground and is surrounded by a concrete shield structure, as shown in figure 1.
For a typical 250 kw triga reactor operating for about 200 days a year, 8 hours per day the u235 consumption is approximately 20 grams per year. By design and construction, triga reactors are failsafe in the sense that the fuel itself is designed to shut down the nuclear reactions if the temperature increases beyond the operation limits. Geometry of the program is adjusted to cylindrical core of the triga mark ii reactor. Research reactors in latin america and the caribbean. Group constants for all unit cells are calculated with transport program wimsd askew et al. The triga mark ii reactor in the viennese prater is part of the atominstitut. It is the only research reactor of its type in the department of the interior and the only research reactor within a 350mile radius of denver, colo. However, those triga reactors that are designed to be operated above 3 mw also use a triga fuel that is specifically designed for those higher power outputs 3 to 14 mw. The data files of the evaluated nuclear data library cannot be used directly as input to neutronic or other applied calculations. Operation of the reactor since that time has averaged 220 days per year, without any long outages. Smaller diameter fuels are used in fuel cluster configurations of four, 16 or 25 fuel rods for conversion of existing reactors to triga core grids and higher power applications. The triga markii reactor was installed by general atomic san diego, california, u. History, development and future of triga research reactors. This research focused on developing inreactor tests that exhibited 3d neutronics eects coupled with 3d th feedback.
Results are directly applicable to triga reactor operation and safety analysis. The kansas state university triga mark ii nuclear reactor facility supports academic and education programs, research, industrial service and outreach. For unit cell calculation, wims program package is incorporated. Students in the mne nuclear option utilize the reactor in two reactor operation laboratory classes, and as a neutron and gamma source for a radiation. The basement of the reactor building was converted into an industrial gamma irradiator. Reactor design features the multipurpose, pooltype triga reactor will be fueled with highdensity, lowenriched 19. The reactor behaviour after the loss of flow was analysed as well as the changes in the coolant and fuel temperatures.
The reactor first went critical, operating at a steady power, on august 16. Gas triga training, research, isotopes, general atomics reactor is the most widely used nonpower nuclear reactor in the world. Wsu triga reactor license being renewed by nrc steven, thank you for letting us know that the wa shpo requested putting the reactor building on the national registry as a historic building. Threedimensional coupled kineticsthermal hydraulic. Ga has installed 66 triga reactors at universities, government and industrial laboratories, and medical centers in 24 countries. Every fuel and nonfuel element position in the core is treated as a unit cell see fig. This reactor is the only operating research reactor in austria.
Triglav can also be used for depletion calculations and core managementplanning. Oregon state university triga reactor ostr located within the osu radiation center. The usgs triga reactor has been in operation since the late 1960s in support of nuclearbased research for the usgs and a number of universities across the nation. The ostr operates on a regular schedule, 5 days per week, and provides irradiation and. Research reactors in latin america and the caribbean 3 in addition. Triga mark ii nuclear reactor facility mechanical and. Integral cross section measurements using triga reactor. A program package for triga reactor calculations an overview of the triglav package, a tool for the computational analysis of triga mark ii reactors based on lattice. Determination of which experiment your irradiation should be performed ostrop 18 appendix a procedures for irradiating a sample in the oregon state triga reactor. The past and the future of the triga reactor in vienna.
Lectures are educational events that must be attended in order to satisfy uci safety program requirements or are part of the operations program. User manual describing the operation of the reactor simulator from the users perspective. With over 28,000 students, 1,100 faculty members and 9,000 staff, uci is the most one of. The aim of this analysis is to bear out the nuclear data files of jeff3. Slovenian nuclear safety administration litostrojska cesta 54 ljubljana.
Fir s triga activity inventories for decommissioning planning. Triga mark ii nuclear reactor facility the kansas state university triga mark ii nuclear reactor facility supports academic and education programs, research, industrial service and outreach. Research reactor power ratings are designated in megawatts and their output can range from zero e. The reactor first went critical, operating at a steady power, on august 16, 1960. It is a pooltype reactor cooled and partly moderated by light water, with the fuel consisting of a uniform mixture of uranium 8%wt, enriched at 20%wt in 235u and zirconium hydride zrh, which. Integral cross section measurements using triga reactor and. Such high density leu fuels, ranging in uranium content from 20 wt% to 45 wt% have. Moreover, the influence of crosssection data was also studied using various libraries based on evaluated nuclear data file endfbvi. Contact the radiation center director, reactor administrator or reactor supervisor to help you through this process. Single fuel elements of 38mm diameter are supplied for use in standard triga mark i and mark ii reactor core configurations. The institute was founded in 1958 as an interuniversity institute for all austrian universities and started operation in 1962, when the triga mark ii research reactor of the institute was officially opened. Standard reactor physics calculations show that for 1 mwd or 24000kwh of thermal power production 1,25 grams of u235 are consumed for most reactors. Triga reactor construction on the triga reactor and nuclear reactor building.
Typical values are given for the respective systems although each. The reactor is a typical 250kw triga mark ii lightwater reactor with an annular graphite reflector cooled by natural convection. Cases of core coolant flow blockage transient have been simulated and analysed for the triga iprr1 research reactor using the relap5mod3. It is the only research reactor of its type in the department of the interior and the only research reactor within a. These reactors provide enough residence time for the reaction to take place with satisfactory conversion. Triglavw a windows computer program package with graphical. Triga is a pooltype reactor that can be installed without a containment building, and is designed for research and testing use by scientific institutions and universities for purposes such as undergraduate and graduate education, private commercial research, nondestructive testing and isotope production. What links here related changes upload file special pages permanent link page information wikidata item cite this page.
Simulation of a triga reactor core blockage using relap5 code. Research reactor triga mark ii with hot cell slovenian. These data files are to be converted to preprocessed files and then to post processed into multigroup files, which are then directed into specially. Triga reactor maintenance shutdown program at least once during the requalification period each licensed sro shall perform duties at the afrri triga reactor facility, including the operation and maintenance of the afrri triga reactor facility, to ensure familiarization and retraining on. The aim of this analysis is to validate the nuclear data files of jendl4. Doe foreign research reactor snf acceptance program frr snf ap aim of the acceptance program is the nonproliferation, i. Cstr continuous stirred tank reactor and the pfr plug flow reactor. Supplement analysis far the foreign research reactor spent nuclear fuel acceptance program fuel than doe estimated at the inception of the acceptance program in 1996 see section 4. Gas reactors are used in many diverse applications, including production of radioisotopes for medicine and industry, treatment of. Venezuela operated a research reactor, which is now in permanent shut down status. Research reactors for more than 60 years, research reactors have been providing a source of neutrons for a. Cycle 2 dimension, material data and isotopic composition of burned fuel serpent input files triglav input files striga procedure 33. After both input files are prepared with the triglavw interface the striga tool is used.
Its core is a mixed core of three types of fuel elements 1. Agreement with monte carlo reasonable on code level, unable to describe local details. Encapsulation brief project description experimenter signature the experimenter for this ir declares that this irradiation requested falls under the guidelines of requirements given in ostrop 18 appendix a procedures. The following is a brief overview of what is required to perform an irradiation.
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