Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Jungwan Park"'
Autor:
Jun-Won Suh, Seung-Jun Kim, Hyeon-Mo Yang, Moo-Sung Kim, Won-Gu Joo, Jungwan Park, Jin-Hyuk Kim, Young-Seok Choi
Publikováno v:
Energies, Vol 14, Iss 3, p 525 (2021)
S-shaped characteristics in turbine mode are prone to instabilities in associated transient processes. A single value of the speed factor corresponds to multiple values of the discharge factor, having the possibility of changing the operating point a
Externí odkaz:
https://doaj.org/article/812c874287024a33b894e873f1f8e3ad
Publikováno v:
Renewable Energy. 184:510-525
In the low-flow rates of off-design conditions in the pump–turbines, complicated flows can develop with vortices in the flow passages, which significantly increase the vibrations and noise, resulting in destabilizing the pump–turbine system. Unde
Publikováno v:
The KSFM Journal of Fluid Machinery. 24:12-21
Publikováno v:
Renewable Energy. 171:1395-1417
Unusual flow characteristics such as reverse flow, rotating stalls, flow recirculation, and stationary vortexes can induce high dynamic forces and torque variations on the entire system, creating a positive slope in the discharge-head curve. To avoid
Publikováno v:
Journal of Mechanical Science and Technology. 35:1487-1499
The effect of design variables on the performance measures in the entire design space can be evaluated by global sensitivity analysis (GSA). Therefore, a high-dimensional engineering problem can be transformed to a reduced-dimensional problem by asce
Publikováno v:
Renewable Energy. 162:861-876
The tip leakage cavitation phenomenon observed in axial-flow type turbines is one of the major causes of blade tip erosion. This study is focused on the Kaplan turbine cavitation occurring at the tip clearance gap between the blade tip and the statio
Publikováno v:
SAE Technical Paper Series.
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Renewable Energy. 154:986-1004
The importance of renewable energy will increase rapidly due to the global regulation of carbon dioxide emissions to cope with global warming. However, renewable energy has a high output variation because of the fluctuating characteristics of the ene
Publikováno v:
Microsystem Technologies. 26:3377-3387
Recently, a cable-driven parallel robots (CDPRs) has been applied to radio telescope as the accurate actuator, that is the five-hundred-meter aperture spherical telescope. It can be affected by the disturbances such as wind, earthquake and so on. The