Faculty Profiles - GOKON Nobuyuki

Papers - GOKON Nobuyuki

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Molten-salt tubular absorber/reformer (MoSTAR) project: NaCl/MgO composite thermal storage for double-walled reactor tubes Reviewed

Nobuyuki Gokon, Shingo Yamashita, Shogo Takahashi, Tatsuya Kodama, Taebeom Seo

SolarPACES2010, Perpinan, France, September 21-25 2010. 2010

4-2-3 Thermochemical two-step water-splitting using ferrite-coated foam devices by 5 kW dish type solar concentrator

IMAIZUMI Nobuki, SATO Naoki, HATAMACHI Tsuyoshi, GOKON Nobuyuki, KODAMA Tatsuya, SEO Taebeom

Proceedings of the Annual Conference of The Japan Institute of Energy 19 232 - 233 2010

Language：Japanese Publisher：The Japan Institute of Energy

We have developed ferrite-coated foam devices for solar thermochemical two-step water-splitting to produce hydrogen from water. The reactivity of the foam device was firstly tested by 1 kW solar simulator at a laboratory scale experiment. Hydrogen was continuously produced for 20 cycles. Then, the foam device was tested by 5 kW dish type solar concentrator in Inha University in Korea. As a result, solar hydrogen production was demonstrated for several cycles.

DOI： 10.20550/jietaikaiyoushi.19.0_232

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4-2-2 Reactivity of reactive ceramic for solar hydrogen production by Two-Step Thermochemical Water-Splitting

AOYAGI Daiki, KAKENO Ayaka, GOKON Nobuyuki, KODAMA Tatsuya

Proceedings of the Annual Conference of The Japan Institute of Energy 19 230 - 231 2010

Language：Japanese Publisher：The Japan Institute of Energy

Reactive ceramic was studied as a redox material for converting high-temperature heat into chemical fuels via solar two-step thermochemical water-splitting. In the present study, cyclic reactivity of reactive ceramic such as, Fe-containing YSZ particles was examined using thermal reduction temperatures of 1400-1500°C.

DOI： 10.20550/jietaikaiyoushi.19.0_230

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4-2-4 Ni-based catalyst foam device for use as a receiver/absorber in a windowed solar reformer

YAMAWAKI Yuhei, SHIMAWAKI Kazunori, GOKON Nobuyuki, KODAMA Tatsuya

Proceedings of the Annual Conference of The Japan Institute of Energy 19 234 - 235 2010

Language：Japanese Publisher：The Japan Institute of Energy

Catalytically-activated ceramic foam device has been developed as a solar receiver/absorber for use in methane reforming under concentrated solar radiation as an energy source. Ni-Mg-O and Ni/MgO-Al_2O_3 catalysts were loaded on the SiC ceramic foam. They were examined on activity in CO_2 reforming of methane under solar -simulated Xe light radiation by a windowed reformer.

DOI： 10.20550/jietaikaiyoushi.19.0_234

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Molten-Salt Tubular Absorber/Reformer (MoSTAR) Project: The Thermal Storage Media of Na2CO3-MgO Composite Materials Reviewed

Tatsuya Kodama, Nobuyuki Gokon, Shin-ichi Inuta, Shingo Yamashita, Taebeom Seo

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME 131 ( 4 ) 041013-1 - 041013-8 2009.11

Double-walled reformer tubes using high-temperature thermal storage of molten-salt/MgO composite for solar cavity-type reformer Reviewed

Nobuyuki Gokon, Shin-ichi Inuta, Shingo Yamashita, Tsuyoshi Hatamachi, Tatsuya Kodama

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 34 ( 17 ) 7143 - 7154 2009.9

Thermochemical two-step water splitting cycles by monoclinic ZrO2-supported NiFe2O4 and Fe3O4 powders and ceramic foam devices Reviewed

Nobuyuki Gokon, Hiroko Murayama, Ayumi Nagasaki, Tatsuya Kodama

SOLAR ENERGY 83 ( 4 ) 527 - 537 2009.4

New Solar Water-Splitting Reactor With Ferrite Particles in an Internally Circulating Fluidized Bed Reviewed

Nobuyuki Gokon, Shingo Takahashi, Hiroki Yamamoto, Tatsuya Kodama

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME 131 ( 1 ) 2009.2

Monoclinic zirconia-supported Fe3O4 for the two-step water-splitting thermochemical cycle at high thermal reduction temperatures of 1400-1600 degrees C Reviewed

Nobuyuki Gokon, Hiroko Murayama, Jun Umeda, Tsuyoshi Hatamachi, Tatsuya Kodama

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 34 ( 3 ) 1208 - 1217 2009.2

Kinetics of CO2 reforming of methane by catalytically activated metallic foam absorber for solar receiver-reactors Reviewed

Nobuyuki Gokon, Yusuke Osawa, Daisuke Nakazawa, Tatsuya Kodma

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 34 ( 4 ) 1787 - 1800 2009.2

CO2 reforming of CH4 using molten salt/MgO composite thermal storages for solar hydrogen production Reviewed

Nobuyuki Gokon, Shin-ichi Inuta, Shingo Yamashita, Tsuyoshi Hatamachi, Tatsuya Kodama

International Symposium on Fusion Tech 2009 at Incheon, Incheon, Korea, January 13-15, 2009 2009

KINETICS OF CO(2) REFORMING OF METHANE BY CATALYTICALLY ACTIVATED METALLIC FOAM ABSORBER FOR SOLAR RECEIVER-REACTORS Reviewed

Nobuyuki Gokon, Yusuke Osawa, Daisuke Nakazawa, Tsuyoshi Hatarnachi, Tatsuya Kodama

ES2008: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 2 371 - 383 2009

REACTIVITY OF IRON-CONTAINING YSZ FOR A TWO-STEP THERMOCHEMICAL WATER SPLITTING USING THERMAL REDUCTION TEMPERATURES OF 1400-1500 degrees C Reviewed

Tatsuya Kodama, Eiji Hiraiwa, Nobuyuki Gokon

ES2008: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 2 361 - 369 2009

Internally circulating fluidized bed reactor with NiFe2O4 particles for thermochemical water-splitting Reviewed

Nobuyuki Gokon, Nobuyuki Kondo, Tetsuro Mataga, Tatsuya Kodama

SolarPACES2009, Berlin, Germany, September 15-18 2009. 2009

KINETICS OF CO(2) REFORMING OF METHANE BY CATALYTICALLY ACTIVATED METALLIC FOAM ABSORBER FOR SOLAR RECEIVER-REACTORS Reviewed

Nobuyuki Gokon, Yusuke Osawa, Daisuke Nakazawa, Tsuyoshi Hatarnachi, Tatsuya Kodama

ES2008: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 2 34 ( 4 ) 371 - 383 2009

Thermochemical Two-Step Water Splitting by Zirconia-Supported Ferrites and Its foam Device for Solar Demonstration Reviewed

Tatsuya Kodama, Nobuyuki Gokon, Juyn Umeda, Kouchi Sakai, Taebeom Seo

SolarPACES2009, Berlin, Germany, September 15-18 2009. 2009

Reactive ferrite-coated ceramic foam device for a solar thermochemical hydrogen production Reviewed

Ayumi Nagasaki, Tsuyoshi Hatamachi, Nobuyuki Gokon, Tatsuya Kodama

International Symposium on Fusion Tech 2009 at Incheon, Incheon, Korea, January 13-15, 2009 2009

Solar thermochemical hydrogen production research in Inha and Niigata Universities collaboration Reviewed

Tatsuya Kodama, Nobuyuki Gokon, Ayumi Nagasaki, Taebeom Seo

International Symposium on Fusion Tech 2009 at Incheon, Incheon, Korea, January 13-15, 2009 2009

FERRITE-LOADED CERAMIC FOAM DEVICES PREPARED BY SPIN-COATING METHOD FOR A SOLAR TWO-STEP THERMOCHEMICAL CYCLE Reviewed

Nobuyuki Gokon, Tatsuya Kodama, Ayumi Nagasaki, Ko-ichi Sakai, Tsuyoshi Hatamachi

ES2009: PROCEEDINGS OF THE ASME 3RD INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 2 439 - 449 2009

MOLTEN-SALT TUBULAR ABSORBER/REFORMER (MoSTAR) PROJECT: METAL-PLATE-BRIDGED DOUBLE TUBE REACTOR Reviewed

Tatsuya Kodama, Nobuyuki Gokon, Shin-ichi Inuta, Shin-go Yamashita, Tsuyoshi Hatamachi, Taebeom Seo

ES2009: PROCEEDINGS OF THE ASME 3RD INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 2 451 - 457 2009

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Papers - GOKON Nobuyuki