scholarly journals A study on calculation of friction coefficient and packing stress using static diagnosis test for a balanced globe valve in nuclear power plants

2021 ◽  
Author(s):  
Jaehyung Kim ◽  
Taemook Lim ◽  
Ho-Geun Ryu
Keyword(s):  
Friction Coefficient ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Globe Valve

A NUMERICAL STUDY ON MODELLING AND FUNCTIONAL QUALIFICATION USING INTERPRETATION OF STATIC DIAGNOSIS TEST FOR A BALANCED GLOBE VALVE IN NUCLEAR POWER PLANTS

2020 ◽  
Vol 25 (3) ◽  
pp. 14-22
Author(s):  
Jaehyung Kim ◽  
Taekook Park ◽  
Sang Hyuk Lee ◽  
Ho-Geun Ryu ◽  
Taemook Lim ◽  
...  
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Numerical Study ◽  
Globe Valve

Seismic Test Results of Air-Operated Valve Actuators for Nuclear Power Plants (Air-Operated Globe Valve (Cylinder Type))

2019 ◽  
Author(s):  
Ryo Kubota ◽  
Yoshitaka Tsutsumi ◽  
Yoshinao Matsubara ◽  
Shigeki Suzuki ◽  
Shin Kumagai
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Shaking Table ◽  
Test Results ◽  
Active Components ◽  
Seismic Testing ◽  
Globe Valve

Abstract It is believed that air-operated globe valves are able to operate during and after earthquakes, leading to maximum accelerations beyond the existing allowable acceleration for nuclear power plants in Japan (6 × 9.8 m/s2). In this work, this assumption is verified using a resonance shaking table for seismic testing at acceleration levels of 20 × 9.8 m/s2 (see Ref. [1]). Results show that the active components used in existing air-operated globe valve designs remain operable at 22 × 9.8 m/s2 (horizontal (X and Y) and vertical (Z) directions).

A NUMERICAL STUDY ON FLOW AND THRUST CHARACTERISTICS FOR A BALANCED GLOBE VALVE USED IN NUCLEAR POWER PLANTS

2017 ◽  
Vol 22 (4) ◽  
pp. 81-88 ◽  
Author(s):  
Jaehyung Kim ◽  
Wonsam Cho ◽  
Dae-Hwan Kim ◽  
Taehyun Lee ◽  
Kyungha Ryu ◽  
...  
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Numerical Study ◽  
Thrust Characteristics ◽  
Globe Valve

Work structure in nuclear power plants

1983 ◽  
Author(s):  
Marjorie B. Bauman ◽  
Richard F. Pain ◽  
Harold P. Van Cott ◽  
Margery K. Davidson
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Work Structure

Life Extension of Nuclear Power Plants: World Situation and the USA Case

2010 ◽  
pp. 50-56 ◽  
Author(s):  
Pablo T. León ◽  
Loreto Cuesta ◽  
Eduardo Serra ◽  
Luis Yagüe
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Life Extension ◽  
The Usa
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