Flow Blockage Accident Analysis of Tehran Research Reactor Fuel Assembly [PDF]
مجله علوم و فنون هستهای, 2011 Tehran Research Reactor (T.R.R.) is a pool-type, 5 MW thermal research reactor. One probable event is that if some external objects or debris fall down into the reactor core and cause obstruction of the coolant flow through one of the fuel assemblies ...
J. Jafari, S Khakshournia
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Safety Enhancement of Tehran Research Reactor with a Second Shutdown System [PDF]
مجله علوم و فنون هستهای, 2017 Safety and related categories are of importance in all fields of nuclear industry, especially as regards the nuclear reactors. One of the most important safety aspects in the nuclear reactors is the shutdown system, each reactor requiring at least one ...
E Boustani, S Khakshournia, E Abedi
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Improvement of detector shield in PGNAA facility for boron concentration measurement [PDF]
HeliyonA radiation shield consists of borated polyethylene (7 % wt of boron) and lead was used for the HPGe detector in Isfahan MNSR's PGNAA facility in order to remove scattered neutrons and gamma rays, respectively.
M. Jafari +3 more
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Thermal hydraulic analysis of a tubular fuel assembly in the normal operating condition of Tehran Research Reactor core [PDF]
مجله علوم و فنون هستهای, 2022 The purpose of this paper is to investigate the possibility of using tubular fuel assemblies in Tehran Research Reactor (TRR) from the thermal hydraulic perspective.
M. Hasanzadeh +4 more
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Safety assessment of Tehran Research Reactor fuel test loop during loss of flow accident [PDF]
مجله علوم و فنون هستهای, 2022 In order to enhance applicability of Tehran Research Reactor (TRR) for irradiation test of nuclear fuels and materials and considering TRR potential to provide required neutronic and thermal-hydraulic conditions for irradiation tests on domestic nuclear ...
S. Safaei Arshi +2 more
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Safety analysis of HWRR test fuel assembly in Tehran Research Reactor core using open loop test facility [PDF]
مجله علوم و فنون هستهای, 2021 HWRR element is an instrumented fuel assembly constructed based on JCPOA conceptual design parameters for Arak reactor. The in-core experiments of the fuel are carried out in TRR core to evaluate neutronic and thermal-hydraulic parameters using an ...
E. Abedi,, H. Khalafi, S.M. Mirvakili
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Possibility of using real time digital neutron radiography to study the evaporation of water in porous materials [PDF]
مجله علوم و فنون هستهای, 2021 The study of the process of absorption and evaporation of fluids in porous media is of particular importance in sciences such as geology, civil engineering, environment, etc. Neutron radiography is one of the most precise methods for investigation of the
E. Nazemi +4 more
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Neutron Computerized Tomography (CT) of the non-irradiated fuel rod [PDF]
مجله علوم و فنون هستهای, 2020 Due to the special and difficult conditions for the fuel rods inside the reactor core, inspection and quality control of the fuel after the production at the factory and before loading in the core of the reactor is essential.
E. Nazemi +4 more
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Burn up effect on optimal placement of fixed in-core detectors for Tehran research reactor using information theory [PDF]
مجله علوم و فنون هستهای, 2020 Monitoring the power distribution of reactor core is one of the most challenging issues in the safe operation of nuclear reactors. The Number and arrangement of detectors in a core monitoring system should be determined in a way that maximum amount of ...
M.S. Terman +2 more
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Measurement of power reactivity coefficients using In-hour equation in Tehran Research Reactor [PDF]
مجله علوم و فنون هستهای, 2021 This paper uses a new technique to measure the power and temperature reactivity coefficients. In this method, the core reactivity changes due to the modifications in the power or temperature directly.
A. lashkari +3 more
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