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JAEA Reports

Study of HTGR contribution to Japan's CO$$_{2}$$ emission reduction goal in 2050

Kamiji, Yu; Suzuki, Koichi*; Yan, X.

JAEA-Technology 2016-010, 24 Pages, 2016/07

JAEA-Technology-2016-010.pdf:1.05MB

Japanese government has set the goal of reducing CO$$_{2}$$ emission by 26% in 2030 below the 2013 level, in longer term, by 80% below the 1990 level. To achieve the goals, various measures should be taken. The GTHTR300, a commercial High Temperature Gas-cooled Reactor (HTGR) design being developed by JAEA offers spectrum of heat applications by using its high temperature heat up to 950$$^{circ}$$C. The potential contribution of CO$$_{2}$$ emission reduction by HTGR is estimated considering domestic and overseas deployment of the GTHTR300. The best estimate for domestic CO$$_{2}$$ reduction is 2.07$$times$$10$$^{8}$$ ton- CO$$_{2}$$/yr and that from oversea is 2.25$$times$$10$$^{8}$$ ton- CO$$_{2}$$/yr. The sum of these is about 47% of 9.13$$times$$10$$^{8}$$ ton- CO$$_{2}$$/yr which is CO$$_{2}$$ reduction target in 2050, for which deployment of 52 plants in Japan and 113 plants abroad, with each plant containing four 600 MWt reactor units, is required.

JAEA Reports

Annual report on experimental operation of mock-up model test facility with a full-scale reaction tube for HTTR hydrogen production system in 2001 fiscal year (Contract research)

Hayashi, Koji; Inagaki, Yoshiyuki; Kato, Michio; Fujisaki, Katsuo*; Aita, Hideki; Takeda, Tetsuaki; Nishihara, Tetsuo; Inaba, Yoshitomo; Ohashi, Hirofumi; Katanishi, Shoji; et al.

JAERI-Tech 2005-032, 46 Pages, 2005/06

JAERI-Tech-2005-032.pdf:4.79MB

This is annual report on the experimental operation of the mock-up test facility with a full-scale reaction tube for the HTTR hydrogen production system in 2001 fiscal year. The first experimental operation was performed during two weeks from March 1, 2002 to March 13, 2002 to test on the thermal hydraulic performance of the steam reformer and also to train the operators. The thermal hydraulic performance test of the steam reformer was performed to evaluate the heat transfer characteristics between helium gas and process gas in the steam reformer. This report is summarized with an overview of the test, the results and its operation records.

JAEA Reports

Improvement works report on mock-up model test facility with a full-scale reaction tube for HTTR hydrogen production system (Contract research)

Sakaki, Akihiro*; Kato, Michio; Hayashi, Koji; Fujisaki, Katsuo*; Aita, Hideki; Ohashi, Hirofumi; Takada, Shoji; Shimizu, Akira; Morisaki, Norihiro; Maeda, Yukimasa; et al.

JAERI-Tech 2005-023, 72 Pages, 2005/04

JAERI-Tech-2005-023.pdf:14.86MB

In order to establish the system integration technology to connect a hydrogen production system to a high temperature gas cooled reactor, the mock-up test facility with a full-scale reaction tube for the steam reforming HTTR hydrogen production system was constructed in fiscal year 2001 and its functional test operation was performed in the year. Seven experimental test operations were performed from fiscal year 2001 to 2004. On a period of each test operation, there happened some troubles. For each trouble, the cause was investigated and the countermeasures and the improvement works were performed to succeed the experiments. The tests were successfully achieved according to plan.This report describes the improvement works on the test facility performed from fiscal year 2001 to 2004.

JAEA Reports

Verification of HTTR hydrogen production system analysis code using experimental data of mock-up model test facility with a full-scale reaction tube; Cooling system of the secondary helium gas using steam generator and radiator (Contract research)

Sato, Hiroyuki; Ohashi, Hirofumi; Inaba, Yoshitomo; Maeda, Yukimasa; Takeda, Tetsuaki; Nishihara, Tetsuo; Inagaki, Yoshiyuki

JAERI-Tech 2005-014, 89 Pages, 2005/03

JAERI-Tech-2005-014.pdf:7.25MB

In a hydrogen production system using HTTR, it is required to control a secondary helium gas temperature within an allowable value at an intermediate heat exchanger (IHX) inlet to prevent a reactor scram. To mitigate thermal disturbance of the secondary helium gas caused by the hydrogen production system, a cooling system of the secondary helium gas using a steam generator(SG) and a radiator will be installed at the downstream of the chemical reactor. In order to verify a numerical analysis code of the cooling system, numerical analysis has been conducted. The pressure controllability in SG is highly affected by the heat transfer characteristics of air which flows outside of the heat exchanger tube of the radiator. In order to verify a numerical analysis code of the cooling system, the heat transfer characteristics of air has been investigated with experimental results of a mock-up model test. It was confirmed that numerical analysis results were agreed well with experimental results, and the analysis code was successfully verified.

JAEA Reports

Development of dynamic analysis code for HTTR hydrogen production system (Contract research)

Maeda, Yukimasa; Nishihara, Tetsuo; Ohashi, Hirofumi; Sato, Hiroyuki; Inagaki, Yoshiyuki

JAERI-Data/Code 2005-001, 149 Pages, 2005/03

JAERI-Data-Code-2005-001.pdf:12.66MB

A heat and mass balance analysis code (N-HYPAC) has been developed to investigate transient behavior in the HTTR hydrogen production system. The code can analyze heat and mass transfer (temperature and mass and pressure distributions of process and helium gases) and behavior of the control system under both static state(case of steady operation) and dynamic state(case of transient operation). Analysis model of helium and process gases from IHX to secondary helium loop and hydrogen production system has been constructed. This report describes analytical flow sheet, construction of the code, basic equations, method to treat the input data, estimation of the preliminary analysis.

Journal Articles

High temperature gas-cooled reactor

Tachibana, Yukio

Genshiryoku Nenkan 2005-Nen Ban, p.279 - 287, 2005/00

no abstracts in English

Journal Articles

Performance test results of mock-up test facility of HTTR hydrogen production system

Ohashi, Hirofumi; Inaba, Yoshitomo; Nishihara, Tetsuo; Inagaki, Yoshiyuki; Takeda, Tetsuaki; Hayashi, Koji; Katanishi, Shoji; Takada, Shoji; Ogawa, Masuro; Shiozawa, Shusaku

Journal of Nuclear Science and Technology, 41(3), p.385 - 392, 2004/03

 Times Cited Count:17 Percentile:73.59(Nuclear Science & Technology)

Prior to construction of a HTTR hydrogen production system, a mock-up test facility was constructed to investigate transient behavior of the hydrogen production system and to establish system controllability. The Mock-up test facility with a full-scale reaction tube is an approximately 1/30 scale model of the HTTR hydrogen production system and an electric heater is used as a heat source instead of a reactor. Before the mock-up test, a performance test of the test facility was carried out in the same pressure and temperature conditions as those of the HTTR hydrogen production system to investigate its performance such as hydrogen production ability, controllability and so on. It was confirmed that hydrogen was stably produced with a hot helium gas about 120Nm$$^{3}$$/h which satisfy the design value and thermal disturbance of helium gas during the start-up could be mitigated within the design value by using a steam generator.

Journal Articles

High Temperature Gas-cooled Reactor

Tachibana, Yukio

Genshiryoku Nenkan 2004-Nen Ban, p.79 - 87, 2003/11

no abstracts in English

JAEA Reports

Performance test results of mock-up model test facility with a full-scale reaction tube for HTTR hydrogen production system (Contract research)

Inagaki, Yoshiyuki; Hayashi, Koji; Kato, Michio; Fujisaki, Katsuo; Aita, Hideki; Takeda, Tetsuaki; Nishihara, Tetsuo; Inaba, Yoshitomo; Ohashi, Hirofumi; Katanishi, Shoji; et al.

JAERI-Tech 2003-034, 129 Pages, 2003/05

JAERI-Tech-2003-034.pdf:7.62MB

no abstracts in English

Journal Articles

Coal gasification system using nuclear heat for ammonia production

Inaba, Yoshitomo; Fumizawa, Motoo*; Tonogochi, Makoto*; Takenaka, Yutaka*

Applied Energy, 67(4), p.395 - 406, 2000/12

 Times Cited Count:9 Percentile:49.34(Energy & Fuels)

no abstracts in English

JAEA Reports

Thermal and chemical analysis of carbon dioxide reforming of methane using the out-of-pile test facility

Huang, Z.*; Ohashi, Hirofumi; Inagaki, Yoshiyuki

JAERI-Tech 2000-022, p.30 - 0, 2000/03

JAERI-Tech-2000-022.pdf:1.24MB

no abstracts in English

Journal Articles

Research and development program of hydrogen production system with high-temperature gas-cooled reactor

Miyamoto, Yoshiaki; Shiozawa, Shusaku; Ogawa, Masuro; Inagaki, Yoshiyuki; Nishihara, Tetsuo; Shimizu, Saburo

Proceedings of International Hydrogen Energy Forum 2000, 2, p.271 - 278, 2000/00

no abstracts in English

JAEA Reports

Development of heat and mass balance analysis code in out-of-pile hydrogen production system for HTTR heat utilization system (Contract research)

Inaba, Yoshitomo; Inagaki, Yoshiyuki; Hayashi, Koji; *

JAERI-Data/Code 99-009, 93 Pages, 1999/03

JAERI-Data-Code-99-009.pdf:2.74MB

no abstracts in English

Journal Articles

Out-of-pile demonstration test program of hydrogen production system coupling with HTTR

Inagaki, Yoshiyuki; Takeda, Tetsuaki; Nishihara, Tetsuo; Hada, Kazuhiko; Hayashi, Koji

Nihon Genshiryoku Gakkai-Shi, 41(3), p.250 - 257, 1999/00

 Times Cited Count:10 Percentile:61.61(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Out-of-pile demonstration test of hydrogen production system coupling with HTTR

Inagaki, Yoshiyuki; Nishihara, Tetsuo; Takeda, Tetsuaki; Hada, Kazuhiko; Hayashi, Koji

Proceedings of 7th International Conference on Nuclear Engineering (ICONE-7) (CD-ROM), 10 Pages, 1999/00

no abstracts in English

Journal Articles

Development of methane conversion improvement method by recycling of residual Methane for steam reforming as a part of R&D of HTGR-hydrogen production system

Inagaki, Yoshiyuki; Haga, Katsuhiro; ; Sekita, Kenji; *; Hino, Ryutaro

Nihon Genshiryoku Gakkai-Shi, 40(1), p.59 - 64, 1998/00

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Outline of operation and control system and analytical investigation of transient behavior of an out-of-pile hydrogen production system for HTTR heat utilization system

Inagaki, Yoshiyuki; Hada, Kazuhiko; Nishihara, Tetsuo; Takeda, Tetsuaki; Hino, Ryutaro; Haga, Katsuhiro

JAERI-Tech 97-050, 125 Pages, 1997/10

JAERI-Tech-97-050.pdf:2.96MB

no abstracts in English

JAEA Reports

Study on industrial utilization of nuclear heat

Inaba, Yoshitomo; Fumizawa, Motoo; Hishida, Makoto*; *; Takenaka, Yutaka*; Tonogochi, Makoto*

JAERI-Tech 96-057, 132 Pages, 1997/01

JAERI-Tech-96-057.pdf:4.08MB

no abstracts in English

Journal Articles

Out-of-pile demonstration test program of HTTR hydrogen production system by steam reforming of natural gas

Inagaki, Yoshiyuki; Hino, Ryutaro; Hada, Kazuhiko*; Haga, Katsuhiro; Nishihara, Tetsuo; Takeda, Tetsuaki; Shiozawa, Shusaku

Proc. of 5th Int. Conf. on Nucl. Eng. (ICONE-5)(CD-ROM), 5 Pages, 1997/00

no abstracts in English

JAEA Reports

Improvements of reforming performance of a nuclear heated steam reforming process

Hada, Kazuhiko

JAERI-Research 96-054, 28 Pages, 1996/10

JAERI-Research-96-054.pdf:1.01MB

no abstracts in English

Journal Articles

Universally applicable design concept of stably controlling an HTGR-hydrogen production system

Hada, Kazuhiko; Shibata, Taiju; Nishihara, Tetsuo; Shiozawa, Shusaku

Nihon Genshiryoku Gakkai-Shi, 38(10), p.834 - 844, 1996/00

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

21 (Records 1-20 displayed on this page)