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Proceedings Papers

Effects of Initial Pressure and Length of a Broken Pipe on the Transient Hydraulic Loads Acting on Nuclear Steam Generator Tubes and Supports During Blowdown Following a Sudden Feedwater Pipe Break

Jong Chull Jo, Jae-Jun Jeong, Byong-Jo Yun
Proc. ASME. PVP2019, Volume 4: Fluid-Structure Interaction, V004T04A033, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93132
https://doi.org/10.1115/PVP2019-93132
View Paper titled, Effects of Initial Pressure and Length of a Broken Pipe on the Transient Hydraulic Loads Acting on Nuclear Steam Generator Tubes and Supports During Blowdown Following a Sudden Feedwater Pipe Break
Open the PDF for Effects of Initial Pressure and Length of a Broken Pipe on the Transient Hydraulic Loads Acting on Nuclear Steam Generator Tubes and Supports During Blowdown Following a Sudden Feedwater Pipe Break in another window
Topics: Feedwater, Nuclear reactor steam generators, Pipes, Pressure, Stress, Transients (Dynamics), Pressurized water reactors, Boilers, Flow (Dynamics), Unsteady flow
Journal Articles

Numerical Analysis of Subcooled Water Flashing Flow From a Pressurized Water Reactor Steam Generator Through an Abruptly Broken Main Feed Water Pipe

Jong Chull Jo, Jae Jun Jeong, Byong Jo Yun, Jongkap Kim
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Technical Briefs
J. Pressure Vessel Technol. August 2019, 141(4): 044501.
Paper No: PVT-18-1164
https://doi.org/10.1115/1.4043297
Published Online: April 25, 2019
View Articletitled, Numerical Analysis of Subcooled Water Flashing Flow From a Pressurized Water Reactor Steam Generator Through an Abruptly Broken Main Feed Water Pipe
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Topics: Feedwater, Flashing, Flow (Dynamics), Pipes, Pressure, Subcooling, Transients (Dynamics), Water, Numerical analysis, Computer simulation
Proceedings Papers

Prediction of Transient Hydrodynamic Loads on the PWR Steam Generator Tubes at a Main Feed Water Line Break Accident

Jong Chull Jo, Jae Jun Jeong, Byong Jo Yun
Proc. ASME. PVP2018, Volume 4: Fluid-Structure Interaction, V004T04A019, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84152
https://doi.org/10.1115/PVP2018-84152
View Paper titled, Prediction of Transient Hydrodynamic Loads on the PWR Steam Generator Tubes at a Main Feed Water Line Break Accident
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Topics: Accidents, Boilers, Feedwater, Pressurized water reactors, Stress, Transients (Dynamics), Pipes, Computational fluid dynamics, Flow (Dynamics), Simulation
Proceedings Papers

Numerical Simulation of a Highly Compressed Saturated Water Flashing Flow

Jong Chull Jo, Jae Jun Jeong, Byong Jo Yun, Frederick J. Moody
Proc. ASME. PVP2017, Volume 4: Fluid-Structure Interaction, V004T04A001, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65143
https://doi.org/10.1115/PVP2017-65143
View Paper titled, Numerical Simulation of a Highly Compressed Saturated Water Flashing Flow
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Topics: Computer simulation, Flashing, Flow (Dynamics), Water, Feedwater, Pipes, Accidents, Atmospheric pressure, Fluids, High pressure (Physics)
Proceedings Papers

Validation Experiment for the Cooling Capability of Passive Auxiliary Feedwater System (PAFS) With PASCAL Facility

Byoung-Uhn Bae, Seok Kim, Yu-Sun Park, Bok-Deuk Kim, Kyoung-Ho Kang, Byong-Jo Yun
Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 411-417, July 30–August 3, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICONE20-POWER2012-54506
https://doi.org/10.1115/ICONE20-POWER2012-54506
View Paper titled, Validation Experiment for the Cooling Capability of Passive Auxiliary Feedwater System (PAFS) With PASCAL Facility
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Topics: Cooling, Feedwater, Condensation, Heat exchangers, Heat, Heat transfer, Natural convection, Boiling, Design, Engineering prototypes
Proceedings Papers

Thermal-Hydraulic R&Ds for the APR + Developments in Korea

Chul-Hwa Song, Tae-Soon Kwon, Byong-Jo Yun, Ki-Yong Choi, Hwan-Yeol Kim, Hyung-Gil Jun, Hang-Gon Kim
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 823-828, May 17–21, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ICONE18-29870
https://doi.org/10.1115/ICONE18-29870
View Paper titled, Thermal-Hydraulic R&Ds for the APR + Developments in Korea
Open the PDF for Thermal-Hydraulic R&Ds for the APR + Developments in Korea in another window
Topics: Accidents, Design, Feedwater, Fluidic devices, Optimization, Safety
Journal Articles

Computational Analysis of Downcomer Boiling Phenomena Using a Component Thermal Hydraulic Analysis Code, CUPID

Hyoung Kyu Cho, Byong Jo Yun, Ik Kyu Park, Jae Jun Jeong
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2011, 133(5): 052914.
https://doi.org/10.1115/1.4002869
Published Online: December 21, 2010
View Articletitled, Computational Analysis of Downcomer Boiling Phenomena Using a Component Thermal Hydraulic Analysis Code, CUPID
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Topics: Boiling, Bubbles, Flow (Dynamics), Two-phase flow, Porosity, Momentum, Pressure, Boilers, Topology, Heat transfer
Proceedings Papers

Characteristics of Direct ECC Bypass Phenomena on the Accident Simulation of Late-Phase Reflood in the APR1400

Kyoung-Ho Kang, Hyun-Sik Park, Ki-Yong Choi, Seok Cho, Nam-Hyun Choi, Byong-Jo Yun, Won-Pil Baek, Yeon-Sik Kim
Proc. ASME. ICONE17, Volume 3: Thermal Hydraulics; Current Advanced Reactors: Plant Design, Construction, Workforce and Public Acceptance, 521-527, July 12–16, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICONE17-75620
https://doi.org/10.1115/ICONE17-75620
View Paper titled, Characteristics of Direct ECC Bypass Phenomena on the Accident Simulation of Late-Phase Reflood in the APR1400
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Topics: Accidents, Boiling, Coolants, Flow (Dynamics), Nozzles, Pressure, Simulation, Steam, Temperature, Thermal hydraulics
Proceedings Papers

Local Flow Structure of Subcooled Boiling Flow of Water in a Heated Annulus

Tae-Ho Lee, Byong-Jo Yun, Goon-Cherl Park, Takashi Hibiki, Seong-O Kim
Proc. ASME. ICONE16, Volume 3: Thermal Hydraulics; Instrumentation and Controls, 233-244, May 11–15, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ICONE16-48170
https://doi.org/10.1115/ICONE16-48170
View Paper titled, Local Flow Structure of Subcooled Boiling Flow of Water in a Heated Annulus
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Topics: Annulus, Boiling, Flow (Dynamics), Subcooling, Water, Bubbles, Electrical conductivity, Flowmeters, Heat flux, Porosity
Proceedings Papers

Development of an Advanced Flow Meter Applicable to Large Diameter Piping System Using Average Bi-Directional Flow Tube

Kyoung-Ho Kang, Byong-Jo Yun, Dong-Jin Euh, Won-Pil Baek
Proc. ASME. ICONE14, Volume 2: Thermal Hydraulics, 409-414, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICONE14-89399
https://doi.org/10.1115/ICONE14-89399
View Paper titled, Development of an Advanced Flow Meter Applicable to Large Diameter Piping System Using Average Bi-Directional Flow Tube
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Topics: Flow (Dynamics), Flowmeters, Piping systems
Proceedings Papers

Characteristics of Downcomer Boiling Phenomena During the Reflood Phase of a Postulated Large Break LOCA for the APR1400

Byong-Jo Yun, Dong-Jin Euh, Won-Man Park, Young-Jung Youn, Chul-Hwa Song
Proc. ASME. ICONE14, Volume 2: Thermal Hydraulics, 803-811, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICONE14-89782
https://doi.org/10.1115/ICONE14-89782
View Paper titled, Characteristics of Downcomer Boiling Phenomena During the Reflood Phase of a Postulated Large Break LOCA for the APR1400
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Topics: Boiling, Two-phase flow, Coolants, Cooling, Elevations (Drawings), Flow (Dynamics), Pressure, Pressurized water reactors, Test facilities, Transients (Dynamics)