Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Ho-Young Kwak"'
Publikováno v:
Case Studies in Thermal Engineering, Vol 56, Iss , Pp 104251- (2024)
This study estimates the steady-state performance of a proton exchange membrane fuel cell (PEMFC) under conditions of air depletion in the preferential oxidation reactor (PrOx) and fuel depletion at the anode, which has not been previously studied. C
Externí odkaz:
https://doaj.org/article/3c4e26b186f24a5c9880473d23e79245
Publikováno v:
Entropy, Vol 26, Iss 7, p 566 (2024)
Exergy analysis evaluates the efficiency of system components by quantifying the rate of entropy generation. In general, the exergy destruction rate or irreversibility rate was directly obtained through the exergy balance equation. However, this meth
Externí odkaz:
https://doaj.org/article/9448b3b7d4894206b3a05ce5443d1ed2
Publikováno v:
Energies, Vol 16, Iss 24, p 8090 (2023)
The use of nuclear energy is inevitable to reduce the dependence on fossil fuels in the energy sector. High-temperature gas-cooled reactors (HTGRs) are considered as a system suitable for the purpose of reducing the use of fossil fuels. Furthermore,
Externí odkaz:
https://doaj.org/article/6319f2989e2348869550cbb7acbc2ad5
Autor:
Yungpil Yoo, Ho-Young Kwak
Publikováno v:
Entropy, Vol 26, Iss 1, p 35 (2023)
The maximum temperature limit at which liquid boils explosively is referred to as the superheat limit of liquid. Through various experimental studies on the superheating limit of liquids, rapid evaporation of liquids has been observed at the superhea
Externí odkaz:
https://doaj.org/article/cfc5c4eabbf64822b7477f4f86b58c6a
Autor:
Dong-Wan Kim, Giyoun Cho, Hyejin Kim, Gyeongmin Lee, Tae-Gwan Lim, Ho-Young Kwak, Jong-Hyeon Park, Sung-Han Park
Publikováno v:
Vaccines, Vol 11, Iss 4, p 815 (2023)
Following the worst outbreak of foot-and-mouth disease (FMD), a highly contagious disease in cloven-hoofed animals caused by the FMD virus, from November 2010–April 2011, the Korean government enforced a mandatory vaccination policy. A bivalent (FM
Externí odkaz:
https://doaj.org/article/a1e0052b103b4bfa86ae1826974e8197
Publikováno v:
Energies, Vol 15, Iss 22, p 8672 (2022)
In this study, exergy and thermoeconomic analyses were performed on a Carnot battery system (CBS) comprising an air heat pump and steam turbine. The Carnot battery technology employed in this study stored electricity as heat for 10 h during night-tim
Externí odkaz:
https://doaj.org/article/14ebb38d6b9648b79b8904ecea9a5ec4
Publikováno v:
Energies, Vol 15, Iss 9, p 3101 (2022)
Thermodynamic, exergetic and thermoeconomic analyses were performed on two types of double-effect LiBr–water absorption refrigeration systems (ARS) for use with a 5-kW high-temperature proton exchange membrane fuel cell (HT-PEMFC) as a heat source.
Externí odkaz:
https://doaj.org/article/e726ab5b645b47eca6729094cdc26586
Autor:
Cuneyt Uysal, Ho-Young Kwak
Publikováno v:
Entropy, Vol 22, Iss 3, p 289 (2020)
Power plants or thermal systems wherein products such as electricity and steam are generated affect the natural environment, as well as human society, through the discharging of wastes. The wastes from such plants may include ashes, flue gases, and h
Externí odkaz:
https://doaj.org/article/381e76a584e2464cb3af8ef09715277a
Autor:
Ho-Young Kwak
Publikováno v:
Entropy, Vol 20, Iss 8, p 562 (2018)
Heat transfer accompanying entropy generation for the evolving mini and microbubbles in solution is discussed based on the explicit solutions for the hydrodynamic equations related to the bubble motion. Even though the pressure difference between the
Externí odkaz:
https://doaj.org/article/ba03d518d1ba458aac5623f23b295525
Publikováno v:
Journal of Fluid Science and Technology, Vol 5, Iss 1, Pp 2-13 (2010)
The pulse widths of light from sonoluminescing air bubbles in various solutions were measured by a time-correlated single photon counting (TC/SPC) method to investigate the effect of density on sonoluminescence characteristics. The measured values of
Externí odkaz:
https://doaj.org/article/67de69ac1a6b41859e37a470456d4efd