Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Younseok Choi"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 10, p 1500 (2022)
This study proposed the integrated design of an NH3 fuel supply system and a re-liquefaction system for an ocean-going NH3-fueled ship. The target ship was a 14,000 TEU large container ship traveling from Asia to Europe. The NH3 fuel supply system wa
Externí odkaz:
https://doaj.org/article/67a28ba3aa7b43be9d821a354d8c70a8
Autor:
Younseok Choi, Jinkwang Lee
Publikováno v:
Aerospace, Vol 9, Iss 10, p 564 (2022)
As the demand for alternative fuels to solve environmental problems increases worldwide due to the greenhouse gas problem, this study predicted the demand for liquid hydrogen fuel in aviation to achieve ‘zero-emission flight’. The liquid hydrogen
Externí odkaz:
https://doaj.org/article/8ef2be0ce861491cafb5e9ddea8857f8
Publikováno v:
Energies, Vol 15, Iss 11, p 4002 (2022)
In this study, we conducted experiments and numerical analysis on a 270 kW industrial-scale centrifugal compressor used in the fuel supply system of an LNG carrier in order to improve the lumped-parameter surge model by considering the viscosity in t
Externí odkaz:
https://doaj.org/article/12bb2a35d5b741a4b29e0c31158402cb
Publikováno v:
Mathematics, Vol 9, Iss 13, p 1544 (2021)
In this study, the structural reliability of plate-stiffened prismatic pressure vessels was analyzed over time. A reliability analysis was performed using a time-dependent structural reliability method based on the response surface method (RSM). The
Externí odkaz:
https://doaj.org/article/caadf0f54af7406a9e4244c2e10e21c0
Publikováno v:
International Journal of Hydrogen Energy. 47:14687-14702
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4673b30a032641025b14f6e76a737eab
https://doi.org/10.1016/j.ijhydene.2022.02.210
https://doi.org/10.1016/j.ijhydene.2022.02.210
Publikováno v:
International Journal of Hydrogen Energy. 47:4120-4135
This study proposes the integrated designs of energy systems and a re-liquefaction system for ocean-going LH2 tankers. Five prospective energy systems (Systems A to E) are suggested, using LNG as fuel, and a re-liquefaction system with a Claude cycle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6baec302f996872bbcea4f285aecc8df
https://doi.org/10.1016/j.ijhydene.2021.11.004
https://doi.org/10.1016/j.ijhydene.2021.11.004
Publikováno v:
International Journal of Hydrogen Energy. 46:31816-31827
This study investigates an appropriate combined cycle as the electric propulsion system in a large container ship. A gas turbine combined cycle and molten carbonate fuel cell-steam turbine cycle are considered; the gas turbine uses LNG or hythane fue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::382f9e5f3dd43d5567fc27369ce717a5
https://doi.org/10.1016/j.ijhydene.2021.07.068
https://doi.org/10.1016/j.ijhydene.2021.07.068
Publikováno v:
Rapid Prototyping Journal. 27:131-144
Purpose The purpose of this paper is to propose a new approach of using additively manufactured parametric models in the wind tunnel test-based aerodynamic shape optimization (ASO) framework and to present its applicability test results obtained from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9170e0d9c818a0186cba8b148a6a573d
https://doi.org/10.1108/rpj-09-2019-0237
https://doi.org/10.1108/rpj-09-2019-0237
Autor:
Younghee Cho, Junkeon Ahn, Daejun Chang, Choonghee Jo, Yeelyong Noh, Younseok Choi, Hyun Chung, Hwalong You, Pal G Bergan
Publikováno v:
Ocean Engineering. 164:367-376
This study evaluates the structural feasibility of a prismatic pressure vessel using strength assessments. A prismatic pressure vessel, which differs from a cylindrical or spherical pressure vessel, is proposed. A prismatic pressure vessel can be use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5901c3d1fd9ef8382eae445a676f846e
https://doi.org/10.1016/j.oceaneng.2018.06.022
https://doi.org/10.1016/j.oceaneng.2018.06.022
Publikováno v:
Ocean Engineering. 142:639-649
This paper proposes design principles of a new concept prismatic pressure vessel that is primarily constructed of plane surfaces. These principles were compared with those of conventional pressure vessel which is primarily constructed of revolutionar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::079c842c634f6e6ab1527cae5701e301
https://doi.org/10.1016/j.oceaneng.2017.07.039
https://doi.org/10.1016/j.oceaneng.2017.07.039