Results 21 to 30 of about 823,974 (286)

Film condensation heat transfer of low integral-fin tube. [PDF]

open access: yes, 1985
PhDFor condensation on horizontal low-finned tubes, the dependence of heat-transfer performance on fin spacing has been investigated experimentally for condensation of refrigerant 113 and ethylene glycol.
Masuda, Hiroshi
core   +4 more sources

Coupled modeling of neutronics and thermal-hydraulics processes in LFR under SG-leakage condition [PDF]

open access: yesNuclear Energy and Technology, 2023
The lead cooled reactor BREST-OD-300 is developing as a part of Russian federal project “PRORYV”. Two- circuit scheme is used in the reactor for heat removal.
Yurii S. Khomyakov   +2 more
doaj   +3 more sources

Failure Analysis of Steam Generator Tubes

open access: yes, 2023
Steam generator fabricated of alloy 600 tubes has been replaced in the last decades by newer versions built with alloy 690 or alloy 800 tubes. At first, it was thought that both alloys were resistant to SCC mechanisms but after several years of operation, some NPPs developed denting processes and IGSCC, especially in alloy 800.
Diego, Gonzalo, Merino, Susana
openaire   +2 more sources

Micro-Galvanic Corrosion of Steam Generator Materials within Pores of Magnetite Flakes in Alkaline Solutions

open access: yesMetals, 2018
In secondary coolant system of the pressurized water reactors, the reduced corrosion products such as metallic Cu and Pb particles were accumulated in the pores of the magnetite flakes and electrically contacted to the steam generator materials.
Soon-Hyeok Jeon   +2 more
doaj   +1 more source

Experimental investigation of heat and mass exchange processes during operation of VVER steam generator in emergency condensing mode

open access: yesNuclear Energy and Technology, 2017
GE2M-PG test facility was constructed at the JSC “SSC RF-IPPE” for assessment of efficiency of VVER steam generator and investigation of effects of initial conditions of the accident on the processes of heat exchange in the steam generator (SG) tube ...
A.S. Shlyopkin   +3 more
doaj   +1 more source

Numerical Study on the Effect of Deposit Layer on the Minimum Wall Thickness of Boiler Water Tube under Different Operating Conditions

open access: yesApplied Sciences, 2022
Water wall tube temperature is a major parameter in the steam generator design which has a significant role in keeping the steam generator available. Thus, knowing the tube average temperature in different operating conditions is very important to avoid ...
Ahmed S. Aljohani   +3 more
doaj   +1 more source

Thermal-hydraulic Characteristics Analysis Method of Helical Coil Steam Generator in High Temperature Gas Reactor

open access: yesYuanzineng kexue jishu, 2022
High temperature gas reactors (HTGRs) have broad application prospects in power supply, seawater desalination and hydrogen production. Helical coil steam generators have the advantages of compact structure, high heat transfer efficiency and resistance to
WANG Mingjun;SUN Jinxiang;ZHANG Jing;TIAN Wenxi;QIU Suizheng;SU Guanghui
doaj  

Reliability of Degraded Steam Generator Tubes [PDF]

open access: yes, 2011
Steam generators in the second generation nuclear power plants with pressurized water and CANDU reactors were in most cases of the shell-and-tube type. The reactor coolant passes through the tubes at the primary side and boils water on the outside of the tubes (secondary shell side) to make steam.
Leon Cizelj, Guy Roussel
openaire   +1 more source

Steam generator tube integrity program

open access: yesNuclear Engineering and Design, 1996
Abstract The degradation of steam generator tubes in pressurized water nuclear reactors continues to be a serious problem, and the US Nuclear Regulatory Commission (NRC) is developing a performance-based rule and regulatory guide for steam generator tube integrity.
D.R. Diercks, J. Muscara, W.J. Shack
openaire   +2 more sources

Research on the Thermal Stratification Phenomenon at the Secondary Side of a Steam Generator in an Isolated Loop

open access: yesEnergies, 2022
In normal operation, there is no significant thermal stratification phenomenon in the tube bundle area of the steam generator of the nuclear power plant.
Xinxin Liu   +3 more
doaj   +1 more source

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