Faculty Profiles - GOKON Nobuyuki

Papers - GOKON Nobuyuki

Division display 61 - 80 of about 238 ／ All the affair displays >>

Cyclic thermal storage/discharge performances of a hypereutectic Cu-Si alloy under vacuum for solar thermochemical process Reviewed

Nobuyuki Gokon, Tomoya Yamaguchi, Tatsuya Kodama

ENERGY 113 1099 - 1108 2016.10

Cyclic thermal storage/discharge performances of hypereutectic alloy for solar latent heat storage Reviewed

Tomoya Yamaguchi, Nobuyuki Takahashi, Tsuyoshi Hatamachi, Hyun-Seok Cho, Nobuyuki Gokon, Tatsuya Kodama

International Symposium on Fusion Tech 2016, Harbin Institute of Technology, Harbin, China, January 19-21, 2016. 2016

Particles Fluidized Bed Receiver/Reactor with a Beam-Down Solar Concentrating Optics: 30-kW(th) Performance Test Using a Big Sun-Simulator Reviewed

Tatsuya Kodama, Nobuyuki Gokon, Hyun Seok Cho, Koji Matsubara, Tetsuro Etori, Akane Takeuchi, Shin-nosuke Yokota, Sumie Ito

SOLARPACES 2015: INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS 1734 2016

Experimental Demonstration and Numerical Model of a Point Concentration Solar Receiver Evaluation System Using a 30 kWth Sun Simulator Reviewed

M. Nakakura, M. Ohtake, K. Matsubara, K. Yoshida, H. S. Cho, T. Kodama, N. Gokon

SOLARPACES 2015: INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS 1734 2016

Synthesis of CeO2 particles by spray dryer method for solar hydrogen production Reviewed

Sumie Ito, Shiori Abe, Tsuyoshi Hatamachi, Cho Hyunseok, Nobuyuki Gokon, Tatsuya Kodama

International Symposium on Fusion Tech 2016, Harbin Institute of Technology, Harbin, China, January 19-21, 2016. 2016

Cold Test with a Benchtop Set-up for Fluidized Bed Reactor Using Quartz Sand to Simulate Gasification of Coal Cokes by Concentrated Solar Radiation Reviewed

Nobuyuki Gokon, Tomoaki Tanabe, Tadaaki Shimizu, Tatsuya Kodama

SOLARPACES 2015: INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS 1734 2016

4-3-3 The development of the quartz window type particle fluidized bed solar receiver / reactor for Miyazaki beam-down solar concentrating system

SENUMA Kazuya, YOKOTA Shinnosuke, ITOH Sumie, CHO Hyun Seok, HATAMACHI Tsuyoshi, GOKON Nobuyuki, KODAMA Tatsuya, KANEKO Hiroshi

Proceedings of the Annual Conference of The Japan Institute of Energy 25 136 - 137 2016

Language：Japanese Publisher：The Japan Institute of Energy

Mitaka Koki Co., LTd., Miyazaki prefecture, Miyazaki University and Niigata University build a beam-down (BD) solar concentrating system in August 2012 at Miyazaki University for solar demonstration of the receiver/reactor. Both universities started an R&D joint project since 2011 to demonstrate the up-scaled receiver/reactor under a concentrated solar radiation. In this study, the first demonstration results of the receiver/reactor using BD solar concentrating system are reported. Quartz sand is used as a fluidization particle to examine performances of the receiver/reactor, while air is used as a passing gas. The temperatures of air and quartz sand are shown in the paper.

DOI： 10.20550/jietaikaiyoushi.25.0_136

CiNii Article

researchmap

4-3-1 High Activation of Other Metal Doped Ceria in a Thermochemical Two-StepWater-splitting cycle

NAITO Kiko, HATAMACHI Tsuyoshi, GOKON Nobuyuki, KODAMA Tatsuya

Proceedings of the Annual Conference of The Japan Institute of Energy 25 132 - 133 2016

Language：Japanese Publisher：The Japan Institute of Energy

Solar hydrogen production via thermochemical water-splitting cycle by concentrated high-temperature heat has extensively investigated in a world. In this study, a thermochemical two-step water-splitting using redox material of Mn doped-ceria powder was examined in consecutive thermal reduction-decomposition steps by switching a passing gas from high purity Nitrogen in the TR step into the gas mixture of N2 and steam in the WD step. The reactivity of Mn doped-ceria powder with 5-30 mol% Mn doping was evaluated in this study.

DOI： 10.20550/jietaikaiyoushi.25.0_132

CiNii Article

researchmap

4-3-2 Reactivity of Thermochemical Two-Step Water-Splitting cycle using LaSrAlMnO3-δ

SUGIYAMA Yuta, HATAMACHI Tsuyoshi, GOKON Nobuyuki, KODAMA Tatsuya

Proceedings of the Annual Conference of The Japan Institute of Energy 25 134 - 135 2016

Language：Japanese Publisher：The Japan Institute of Energy

Perovskite oxide powder was examined as a redox material on reactivity of thermochemical two-step water-splitting for converting high-temperature heat into chemical fuels. In this study, in order to examine reactivity of the redox material at lower temperature in the thermochemical two-step water-splitting cycle, the amount of oxygen and hydrogen, its stoichiometry were investigared using LaSrAlMnO3-δ powder at thermal reduction temperature of 1350 °C and water-decomposition temperture of 1000 °C.

DOI： 10.20550/jietaikaiyoushi.25.0_134

CiNii Article

researchmap

Oxygen and hydrogen productivities and repeatable reactivity of 30-mol%-Fe-, Co-, Ni-, Mn-doped CeO2-delta for thermochemical two-step water-splitting cycle Reviewed

Nobuyuld Gokon, Toshinori Suda, Tatsuya Kodama

ENERGY 90 1280 - 1289 2015.10

Thermochemical reactivity of 5-15 mol% Fe, Co, Ni, Mn-doped cerium oxides in two-step water-splitting cycle for solar hydrogen production Reviewed

Nobuyuki Gokon, Toshinori Suda, Tatsuya Kodama

THERMOCHIMICA ACTA 617 ( 10 ) 179 - 190 2015.10

Improved operation of solar reactor for two-step water-splitting H-2 production by ceria-coated ceramic foam device Reviewed

H. S. Cho, N. Gokon, T. Kodama, Y. H. Kang, H. J. Lee

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 40 ( 1 ) 114 - 124 2015.1

Steam gasification of coal cokes by internally circulating fluidized-bed reactor by concentrated Xe-light radiation for solar syngas production Reviewed

Nobuyuki Gokon, Takuya Izawa, Tatsuya Kodama

ENERGY 79 264 - 272 2015.1

Laboratory experiment and simulation of higherature fluidized bed air receiver for concentrated solar power generation Reviewed

Koji Matsubara, Yuki Kazuma, Atsushi Sakurai, Tatsuya Kodama, Nobuyuki Gokon, Hyun-Seok Cho, Kazuo Yoshida, Yoshinori Nagase

Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy 94 ( 11 ) 1323 - 1329 2015

Cyclic properties of thermal storage/discharge for Al-Si alloy in vacuum for solar thermochemical fuel production Reviewed

N. Gokon, S. Nakamura, T. Yamaguchi, T. Kodama

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 69 1759 - 1769 2015

Flowability control of bed materials in a fluidized bed reactor for solar thermochemical process Reviewed

T. Etori, N. Gokon, A. Takeuchi, T. Miki, M. Yokota, T. Kodama

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 69 1741 - 1749 2015

Internally-circulating fluidized bed reactor using thermal storage material for solar coal coke gasification Reviewed

T. Abe, N. Gokon, T. Izawa, T. Kodama

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 69 1722 - 1730 2015

Simulation of flux distributions on the foam absorber with solar reactor for thermo-chemical two-step water splitting H-2 production cycle by the 45 kW(th) KIER solar furnace Reviewed

H. S. Cho, N. Gokon, T. Kodama, Y. H. Kang, J. K. Kim

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 69 790 - 801 2015

Development of a receiver evaluation system using 30 kWth point concentration solar simulator Reviewed

M. Nakakura, M. Ohtake, K. Matsubara, K. Yoshida, H. S. Cho, T. Kodama, N. Gokon

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 69 497 - 505 2015

Cold model experiments on fluidization behavior of mixture of quartz sand and coal cokes for solar gasification Reviewed

Nobuyuki Gokon, Tomoaki Tanabe, Tadaaki Shimizu, Tatsuya Kodama

SolarPACES 2015, Cape Town, South Africa, October 13-16, 2015. 2015

　 PREV - NEXT 　

<GOKON Nobuyuki>

Papers - GOKON Nobuyuki