Výsledky vyhledávání - "Yasuo Takagi"

Akademický článek

Research on evaluation of hydrogen jet behavior and assessment of cooling loss reduction by measuring local heat flux in direct injection hydrogen engines

Autor: Yoshihisa KOJIYA, Ryota SATO, Hiromi SAITO, Daijiro ISHII, Masakuni OIKAWA, Yasuo TAKAGI, Yuji MIHARA

Publikováno v: Nihon Kikai Gakkai ronbunshu, Vol 85, Iss 875, Pp 18-00427-18-00427 (2019)

The authors have proposed a new combustion process called the Plume Ignition Combustion Concept (PCC), in which a plume of the hydrogen jet is spark-ignited just after hydrogen is injected to accomplish combustion of a plume of rich mixture. With an

Externí odkaz: https://doaj.org/article/39e8fff380d840849d0416f680bfc0ec

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Effect of supercharging on improving thermal efficiency and modifying combustion characteristics in lean-burn direct-injection near-zero-emission hydrogen engines

Autor: Masakuni Oikawa, Keisuke Goma, Yasuo Takagi, Yuji Mihara, Ryota Sato, Yoshihisa Kojiya

Publikováno v: International Journal of Hydrogen Energy. 47:1319-1327

The authors have proposed a new combustion process called the Plume Ignition Combustion Concept (PCC), in which with an optimal combination of hydrogen injection timing and controlled jet geometry, the plume of the hydrogen jet is spark-ignited to ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b99c6f163f378c6741a9b521414a4b85
https://doi.org/10.1016/j.ijhydene.2021.10.061

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An Efficiency Dependency Study on the Heat Management of the A-CAES Plant with Liquid Heat Medium Loops

Autor: Sato Takashi, Kanami Sakamoto, Yasuo Takagi, Ryo Nakamichi

Publikováno v: Transactions of the Institute of Systems, Control and Information Engineers. 33:77-86

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8167b94a0353491ee4849dd122b8207
https://doi.org/10.5687/iscie.33.77

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HTES Hydrogen Production Plant Control Methods for Fluctuating Power Sources

Autor: Yasuo Takagi, Ryouji Yoshimura, Hisao Watanabe, Naomi Tsuchiya, Masahiko Yamada, Tsuneji Kameda

Publikováno v: IEEJ Transactions on Power and Energy. 140:117-125

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e3a652e42d8c1919f96e6f5e580ba53
https://doi.org/10.1541/ieejpes.140.117

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Akademický článek

Optimization of Hydrogen Jet Configuration by Single Hole Nozzle and High Speed Laser Shadowgraphy in High Pressure Direct Injection Hydrogen Engines

Autor: Masakuni Oikawa, Yusuke Ogasawara, Yoshikazu Kondo, Kanan Sekine, Yasuo Takagi, Yoshio Sato

Publikováno v: International Journal of Automotive Engineering, Vol 3, Iss 1, Pp 1-8 (2012)

A new ignition-combustion concept named PCC (Plume Ignition Combustion Concept), which ignite rich mixture plume in the middle of injection period or right after injection of hydrogen is completed, is proposed by the authors in order to reduce NOx em

Externí odkaz: https://doaj.org/article/23c85b8b673f46178f22a89ce39489b6

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Effect of modified combustion chamber configuration and enhanced squish flow on improving thermal efficiency in jet-plume-controlled direct-injection near-zero emission hydrogen engines

Autor: Masakuni Oikawa, Yuki Mogi, Mami Horiguchi, Keisuke Goma, Yasuo Takagi, Yuji Mihara

Publikováno v: International Journal of Engine Research. :146808742211352

In direct injection hydrogen engines, the Plume Ignition and Combustion Concept (PCC) developed by the authors has been applied to improve thermal efficiency and reduce NOx emissions under high-load operation. The PCC combustion method burns an optim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cabf082506587af6de067bacf3b6cc9e
https://doi.org/10.1177/14680874221135277

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Near-zero emissions with high thermal efficiency realized by optimizing jet plume location relative to combustion chamber wall, jet geometry and injection timing in a direct-injection hydrogen engine

Autor: Yoshihisa Kojiya, Yuji Mihara, Yasuo Takagi, Ryota Sato, Masakuni Oikawa

Publikováno v: International Journal of Hydrogen Energy. 44:9456-9465

Thermal efficiency was substantially improved and NOx emissions were reduced to a level at a single-digit ppm with PCC combustion by optimizing such characteristics as the direction, number and diameter of the injected jet and controlling the injecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63b84b13bb6d5c1b4806aa8dc9440e52
https://doi.org/10.1016/j.ijhydene.2019.02.058

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Research on evaluation of hydrogen jet behavior and assessment of cooling loss reduction by measuring local heat flux in direct injection hydrogen engines

Autor: Masakuni Oikawa, Ryota Sato, Yuji Mihara, Hiromi Saito, Yasuo Takagi, Daijiro Ishii, Yoshihisa Kojiya

Publikováno v: Transactions of the JSME (in Japanese). 85:18-00427

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9cf9e3316c58881d38edbadca0b04d35
https://doi.org/10.1299/transjsme.18-00427

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The Characteristic Analysis of A-CAES plant with the Virtual Synchronous Generator Function

Autor: Kanami Sakamoto, Yasuo Takagi, Ryo Nakamichi, Sato Takashi

Publikováno v: SICE

A virtual synchronous generator (VSG) structure for the adiabatic compressed air energy storage system (ACAES) is proposed and its feature is studied through dynamic simulations. The VSG focused on the synchronous machine inertia only and it is const

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53c79ce14b4838992503e4d4b7103afb
https://doi.org/10.23919/sice48898.2020.9240440

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