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Volume 52, Issue 11
Displaying 1-7 of 7 articles from this issue
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[in Japanese]1973 Volume 52 Issue 11 Pages 811-812
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (1973K) -
Ken-ichi Kimura1973 Volume 52 Issue 11 Pages 813-821
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSGeneral background of solar energy utilization, quantity and quality of solar radiation falling on the earth, and technologies on the use of solar energy for heating and cooling buildings are described.
Considering that environmental disruption by consuming fossil fuels and future shortage of energy resources are the major motives to the recent advent of solar energy utilization and reviewing the brief history of the research on the use of solar energy, it is stressed that not only for economical prospect but also for safe and clean environment the use of solar energy as a heat source for heating and cooling buildings must be taken into consideration.
Described next are the solar radiation actually available for heating and cooling buildings and its seasonal and diurnal variations. Irregular and intermittent characteristics of solar radiation as a energy source and the problems related to the actual usage are explained.
As for the technologies of solar heating and cooling, various kinds of collecting system, storing system, heat supplying system and their performances are described for heating and cooling respectively based on the current possible methods. Several examples of solar houses actually built so far are introduced and their outlines and special features are compared.
Finally a consideration is made on the future image of solar heating and cooling which was the core theme discussed at the International Congress-the Sun in the Service of Mankind-held in Paris July 1973.View full abstractDownload PDF (1428K) -
Takashi Onodera, Takashi Murase, Tatsuo Sakamura1973 Volume 52 Issue 11 Pages 822-831
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSecently, there are some trends that heavy petroleum fractions are cracked under more severe conditions to give highly desulfurized fuel oils, and light oleffins are produced by cracking of kerosene, gas oil, or even crude oil. In addition, these processings give large amounts of middle fractions enriched in heavy aromatics such as dinuclear and polynuclear compounds. In view of overall economics of these processes, it will be more important to upgrade these fractions.
In this paper, according to papers and patents reported in the past years, the several heavy aromatics sources and their compositions, and some techniques in order to manufacture heavy aromatics as concentrate or compound itself are described. Finally, the uses of heavy aromatics f or industrial oils and raw materials for chemicals, e. g. substitutes for PCB (Polychlorinated Biphenyl), dye-carrier, naphthol, naphthalenic polymer, adamantane etc. are discussed.View full abstractDownload PDF (1385K) -
Tetsuo Iwamizu1973 Volume 52 Issue 11 Pages 832-840
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe pressure on energy resources gas generated new interest in the earth's heat, and natural underground reservoirs of steam and hot water, are now tapped on significant scale.
Utilization of the earth's geothermal energy resources f or production of electric power has been achieved in several areas throughout the world, and it has already reached an aggregate capacity of million killowatts in plant. At the present rate of development, it is likely that the production of electric power from steam field will be quadrupled by the end of 1980.
This paper describes the outline of the history, present situation and a few kind of pending quetions connected with the development of the geothermal energy resources.View full abstractDownload PDF (1385K) -
Heat Trausfer Simulation of Steel Bar Butt Welding and Heating Time FormulationSyogo Matsunaga1973 Volume 52 Issue 11 Pages 841-848
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe author studied the heat transfer characteristics of acetylene combustion gas from burner for the butt welding process of concrete reinforce steel bar basing on the experimental steel temperature rise and the heat transfer simulations.
By the heat transfer mathematical model of gas welding steel bar above mentioned, the author get the preheating time formulas of steel bar of various diameter.View full abstractDownload PDF (2647K) -
Eiya Inaba1973 Volume 52 Issue 11 Pages 849-855
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSHitachi Zosen K. K. has bee developing the nitrogen oxides removal process for combustion flue gases from the earlier period. The 10000 Nm3/h pilot pland of the process is constracted at the Sakai Oil Refinery of Kansai Sekiyu K. K. and now it is in operation.
The described subjects in this report are the progresses in the development of this process, the results of pilot plant operation and the characteristics of new catalysts deve-loped in recently.View full abstractDownload PDF (889K) -
[in Japanese], [in Japanese]1973 Volume 52 Issue 11 Pages 856-874
Published: November 20, 1973
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (2274K)
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