Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Takashi Karasudani"'
Autor:
Koichi Watanabe, Megumi Matsumoto, Thandar Nwe, Yuji Ohya, Takashi Karasudani, Takanori Uchida
Publikováno v:
Energies, Vol 16, Iss 18, p 6719 (2023)
Wind tunnel experiments were conducted by installing wind-acceleration structures on both sides of a straight-bladed vertical-axis wind turbine (VAWT) to improve the output performance of the turbine. In the case of Venturi-shape structures, a curved
Externí odkaz:
https://doaj.org/article/be93ec3849984de982cf731f480d8de1
Publikováno v:
Energies, Vol 5, Iss 12, Pp 5229-5242 (2012)
To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a “Wind-Lens turbine”, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES). Since this uniqu
Externí odkaz:
https://doaj.org/article/a963e25dc0d34111b79d0495d8f8f001
Autor:
Yuji Ohya, Takashi Karasudani
Publikováno v:
Energies, Vol 3, Iss 4, Pp 634-649 (2010)
We have developed a new wind turbine system that consists of a diffuser shroud with a broad-ring brim at the exit periphery and a wind turbine inside it. The shrouded wind turbine with a brimmed diffuser has demonstrated power augmentation by a facto
Externí odkaz:
https://doaj.org/article/bf9c93399eea4026a5bf8202e50667e1
Publikováno v:
Renewable Energy and Environmental Sustainability, Vol 2, p 2 (2017)
Wind lens is a new type of wind power system consisting of a simple brimmed ring structure that surrounds the rotor causing greater wind to pass through the turbine. As a consequence, the turbine's efficiency of capturing energy from the wind gets dr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aad213d3dabecf1a504ea6df8bc1ea1
https://www.rees-journal.org/articles/rees/full_html/2017/01/rees160022-s/rees160022-s.html
https://www.rees-journal.org/articles/rees/full_html/2017/01/rees160022-s/rees160022-s.html
Autor:
Tomoyuki Nagai, Yuji Ohya, Shinsuke Okada, Masataka Motoyama, Takashi Karasudani, Kenichiro Sugitani
Publikováno v:
Energy and Power Engineering. :362-370
The purpose of this study is to improve the efficiency of the power generation system of a solar tower using fluid dynamics. The power generation system of a solar tower can be designed and constructed at relatively low cost. However, the energy outp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0afcf8383ea1c75ebd9df96e4c26d0cd
https://doi.org/10.4236/epe.2014.611031
https://doi.org/10.4236/epe.2014.611031
Autor:
Yuji Ohya, Kin-Fai Tong, Takashi Karasudani, Takashi Matsuura, Allann Al-Armaghany, Hugh Griffiths, Alessio Balleri
Publikováno v:
IET Radar, Sonar & Navigation. 7:170-177
The authors study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the efficiency. The design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a709eb2e23b72812836336c9141bc38
https://doi.org/10.1049/iet-rsn.2012.0026
https://doi.org/10.1049/iet-rsn.2012.0026
Publikováno v:
Energies, Vol 5, Iss 12, Pp 5229-5242 (2012)
Energies; Volume 5; Issue 12; Pages: 5229-5242
Energies; Volume 5; Issue 12; Pages: 5229-5242
To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a “Wind-Lens turbine”, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES). Since this uniqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cddb0c80f057573c6d0053a959812839
https://doi.org/10.3390/en5125229
https://doi.org/10.3390/en5125229
Publikováno v:
Wind Engineering. 36:455-472
Unsteady 3-D direct numerical simulations based on the finite-difference method (FDM) were performed for flow fields around a wind turbine equipped with a flanged-diffuser shroud. Generally, it is difficult to numerically simulate the flow around rot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::074fb9d5cd578942d95f252d8e18940c
https://doi.org/10.1260/0309-524x.36.4.455
https://doi.org/10.1260/0309-524x.36.4.455
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 96:524-539
We have developed a wind turbine system that consists of a diffuser shroud with a broad-ring flange at the exit periphery and a wind turbine inside it. The flanged-diffuser shroud plays a role of a device for collecting and accelerating the approachi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6a5778b0bb73a4944e836718b86d57c
https://doi.org/10.1016/j.jweia.2008.01.006
https://doi.org/10.1016/j.jweia.2008.01.006
Autor:
Atsushi Yamaguchi, Takahiro Kiwata, Hiroyuki Sukegawa, Yukinari Fukumoto, Takashi Karasudani, Takeshi Ishihara, Fumiaki Nagao, Tatsuro Yamada, Kenji Shimada, Nobuyoshi Komatsu, Tetsuyoshi Kita, Kazunari Takata, Masamune Okino, Shigeo S. Kimura, Kimihiko Watanabe, Minoru Noda, Yuji Ohya, Akira Shinomiya, Shusaku Iba, Kota Enoki, Pham Van Phuc
Publikováno v:
Wind Engineers, JAWE. 2007:251-264
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12b0eba7883d5334c82201c37246471e
https://doi.org/10.5359/jawe.2007.251
https://doi.org/10.5359/jawe.2007.251