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Volume 70, Issue 1
Displaying 1-14 of 14 articles from this issue
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[in Japanese], [in Japanese]1991 Volume 70 Issue 1 Pages 1-9
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
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Keishiro KAWAMO1991 Volume 70 Issue 1 Pages 10-16
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe Sunshine Project, which was initiated in Fiscal Year 1974, is a national program to develop new energy technologies with the goal for amelioration of Japan's perilously vulnerable energy supply structure.
From the biginning, the project has been developed in these five fields, Solar Energy, Geothermal Energy, Coal Liquefaction and Gasification, Hydrogen Energy and Compre-hensive Research.
In the 1990, to cope with the circumstances around new energy technologies, the New Energy Technology Development Committee of the Industrial Technology Council, an advisory organ of the Minister of International Trade and Industry, has issued an in-terim report that recommends a complete revisin of the guideline for the Sunshine Project for the first time since its inception.
The report sets out three principles whereby the new strategy for research and de-velopment (R&D) of new energy technologies should be established.View full abstractDownload PDF (921K) -
Yasushi BABA1991 Volume 70 Issue 1 Pages 17-26
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe solar cell, so called solar battery, photovoltaic power generator etc., have had three times to attract considerable attention in the past.
We had known it applied to the artificial satellite at first in 1957, then expected so-lar cell as new electrical power source on the occasion of oil crisis in 1978.
But, in both cases, solar cell had played a minor part only. The applications were limitted to special use like space craft and maritime navigation aid system due to high cost in the early days. In the later case, the relaxtation of the balance of supply and de-mand in oil circumstances after that had dampened the trend to introduce solar cell to the stage.
Nowadays, solar cell is going to be in the limelight at third stage as a renewable clean energy in the global environmental problem. The different point from the past cases is in a practical use of solar cell as a generator in several countries.
Some powerful solar cell manufacturers are enjoying the business in their full pro-duction capacity. This paper describes explanation on the application of solar cell and its situation regarding the energy circumstances and the environmental matters.View full abstractDownload PDF (2146K) -
Hikaru MATSUMIYA1991 Volume 70 Issue 1 Pages 27-33
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThis paper summarizes current progress on wind turbine generator systems (WTGS) R&D in Japan, especially those of the SUNSHINE project conducted by MITI. Recently, as the global environmental problem has arisen all over the world, the benefits of wind energy, as a clean, renewable energy resource, are more widely understood than before and not only the government but also utilities have started to accelerate R&D of WTGSs or windfarms.View full abstractDownload PDF (1390K) -
Isao MATSUNAGA1991 Volume 70 Issue 1 Pages 34-39
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSHot dry rock (HDR) geothermal energy, which utilizes the natural heat contained in low permeable rock mass, could be estimated to provide a great amount of energy for electricity. NEDO has been concentrating research efforts on developing HDR geothermal energy from 1985 under a renewable energy development program, named the Sunshine project. Required technology for developing HDR energy is summa-rized in this paper.
This report will also focus on the results obtained in 1989 as well as a brief histry of the Hijiori project and recent R&D situation in America and Europe.View full abstractDownload PDF (806K) -
Hideaki TAKEUCHI, Kazuhiko OGIMOTO1991 Volume 70 Issue 1 Pages 40-50
Published: January 20, 1991
Released on J-STAGE: February 23, 2011
JOURNAL FREE ACCESSRecently, CO2 emission from fossil fuel has become a topic of inter-national discussion as a global environmental problem. Further use of unused renew-able energy is being recognized as one of the effective strategy to solve this problem. Renewable energy means clean natural energy such as hydroelectric power, solar energy and wind energy. Hydroelectric power might play main part among those clean energies without further R&D, since the technology has been practiced for a long time and lots of hydropower potentials remain undeveloped over the world.
Clean Energy Transportation Technology;, in an energy producing country, hyd-rogen is produced through water electrolysis with electrisity from renewable energy sources, and converted into various medium for transportation to an energy consuming countries.
A study has shown a feasibility of the technology using media of LH2, methanol, ammonia and cyclohexane and suggested requirements of further study of the technology including an inventory study of renewable energy resources over the world.View full abstractDownload PDF (1427K) -
Yoshiaki SHITAKA, Motoji ENDO1991 Volume 70 Issue 1 Pages 51-61
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe consumption of fossil fuels can not grow along with the pre-sumption presently taken as global warming simulation basis, due to the spontaneous constraints in availability initiated by thinning down of fossil fuel reserves. More likely production profile, lifecycle of fossil fuel reserves is descrived in this paper.
The atmospheric CO2 concentration in the year 2100 will fall in the range of 500-550ppm, even when no credit of CO2 absorption-fixation countermeasures is taken into account.
IPCC report in August 1990, predicts the CO2 conc. in the year 2100 will rise up to 800 ppm. While this 800ppm can be reached only when all the remaining recoverable fossil fuels are used out.
Any dispute on global warming problems without considering volume and availabil-ity of fossil fuel reserves has no realistic meaning.View full abstractDownload PDF (1327K) -
[in Japanese]1991 Volume 70 Issue 1 Pages 62-67
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
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Kaoru MASUDA, Saburo SAWADA, Osamu OKUMA, Tetsuro MATSUMURA1991 Volume 70 Issue 1 Pages 68-75
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
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Effect of Alcohol on Coloration of Coal Derived Light OilKoji UKEGAWA, Akimitsu MATSUMURA, Teruo KONDO, Nobuharu TAHARA, Etsuro ...1991 Volume 70 Issue 1 Pages 76-80
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
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Catalytic Effect of Various Metals Loaded by Ion-Exchange MethodHisaji MATSUI, Shigeyuki YAMAUCHI, Wei-Chun XU1991 Volume 70 Issue 1 Pages 81-87
Published: January 20, 1991
Released on J-STAGE: October 21, 2011
JOURNAL FREE ACCESSEffects of various metal ions like K, Na, Ca, Fe and Ni, which were loaded to Loy Yang brown coal by ion-exchange method, on flash hydropyrolysis were investigated, using a heated grid reactor.
Raw coal and coal in metal forms were heated in 70 atm hydrogen at 500°C/s to temperatures of up to 1000°C and the yields of char, tar and individual gaseous products were determined as a function of temperature history. It was found that alkaline or alkaline-earth metals showed little catalytic effect, whereas Ni and Fe significantly promoted hydropyrolysis of coal. The addition of 7.3‰ Ni resulted in the increase of the overall carbon conversion and carbon conversion to liquids by 15‰ and 5‰ respectively. Carbon conversion to methane increased by 10‰, whereas carbon conversion to benzene 3.5‰ only below 800°C . The overall carbon conversion increased by 10‰ in the case of 4.3‰ Fe-loading and further increase by 20‰ was observed when increasing Fe loading to 8.5‰. This increase was mainly due to the production of liquids. At the same time, the increases in methane and benzene were. also achieved.View full abstractDownload PDF (1208K) -
[in Japanese]1991 Volume 70 Issue 1 Pages 88-96
Published: January 20, 1991
Released on J-STAGE: October 21, 2011
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[in Japanese]1991 Volume 70 Issue 1 Pages 99
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (133K) -
[in Japanese]1991 Volume 70 Issue 1 Pages 100
Published: January 20, 1991
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (490K)
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