Results 21 to 30 of about 1,135 (216)
Analysis of Void Fraction Distribution and Departure from Nucleate Boiling in Single Subchannel and Bundle Geometries Using Subchannel, System, and Computational Fluid Dynamics Codes [PDF]
Science and Technology of Nuclear Installations, 2012 In order to assess the accuracy and validity of subchannel, system, and computational fluid dynamics codes, the Paul Scherrer Institut has participated in the OECD/NRC PSBT benchmark with the thermal-hydraulic system code TRACE5.0 developed by US NRC ...
Taewan Kim +3 more
doaj +2 more sources
He jishu, 2023 BackgroundThe annular fuel has a closely arranged structure, and the coolant flow at both the gap between the stringers and the near wall surface is small, which is unfavorable to the coolant mixing between the subchannels and the uniform circumferential
ZENG Fulin +3 more
doaj +1 more source
Subchannel analysis of VVER-100 reactor core [PDF]
, 2021 This master’s thesis deals with boiling crisis and with departure from nucleate boiling ratio. This thesis explains terms like the boiling crisis in nuclear reactors and the thesis deals with individual parameters of the reactor core, which have an ...
Bednář, Michal
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Uncertainty Quantitative Analysis of Subchannel Code Calculation of PSBT Void Distribution Benchmark
Shanghai Jiaotong Daxue xuebao, 2022 In order to evaluate the accuracy and reliability of the subchannel code, it is necessary to quantitatively give the uncertainty of the calculation results.
ZHANG Juntao, LIU Xiaojing, ZHANG Tengfei, CHAI Xiang
doaj +1 more source
Mechanical Engineering Journal, 2022 A direct reactor auxiliary cooling system (DRACS) under natural circulation (NC) conditions with a dipped-type direct heat exchanger (D-DHX) in the upper plenum of a reactor vessel (RV) has been investigated for enhancing the safety of sodium-cooled fast
Erina HAMASE +5 more
doaj +1 more source
Synchronization Algorithms and Receiver Structures for Multiuser Filter Bank Uplink Systems
EURASIP Journal on Wireless Communications and Networking, 2009 We address the synchronization problem in an uplink multiuser filter bank system. The system differs from orthogonal frequency division multiple access (OFDMA) since it deploys subchannel frequency confined pulses. User multiplexing is still accomplished
Andrea M. Tonello, Francesco Pecile
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Spacer Effect Model for Subchannel Analysis. Turbulence Intensity Enhancement due to Spacer. [PDF]
Journal of Nuclear Science and Technology, 1998 Mean velocity and velocity fluctuation in a test channel that consisted of five subchannels with and without ferrule-type spacer were measured using air as a working fluid, to clear turbulence intensity enhancement due to spacer. Measurements were performed at Reynolds number of 0.5-1.2x10 5 , which simulated vapor flow velocity of annular-dispersed ...
Takuji NAGAYOSHI, Koji NISHIDA
openaire +1 more source
Review of SCWR research in Japan
Frontiers in Nuclear Engineering, 2023 SCWR (supercritical water cooled reactor) is one of the Generation IV reactors. This review summarizes the results of SCWR design concept development through numerical simulations carried out by the author-led team at the University of Tokyo and Waseda ...
Yoshiaki Oka
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Models for Lateral Flow in Subchannel Analysis [PDF]
, 2022 Disertační práce se zabývala využitím CFD výpočtů proudění ve svazcích průtu s trojúhelníkovou mříží pro vývoj a nastavení modelu příčného proudění v subkanálové analýze.
Vojtěch Caha
core
Subchannel model of APR1400 reactor core [PDF]
, 2023 Diplomová práce popisuje metodiku subkanálové analýzy. Subkanálová analýza slouží jako cenný nástroj při hodnocení bezpečnosti provozu jaderných reaktorů.
Kazimov, Nurmet
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