1890年から1945年までの日本の発電用水車技術の自立過程
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概要
- 論文の詳細を見る
The Japanese water turbine technology which started from imitation of the water turbinens made in foreign countries has achieved the independence, and has reached the level which is not inferior to that of Europe and USA. The course of the independence of Japanese water turbine technology can be divided into the following periods. The first period (from 1890 to 1910) was the period of the manufacture for trial. The water turbines with simple mechanism and small power output were produced more than 40 by imitating the water turbines made in USA. The second period (from 1911 to 1935) was the period to attain the independence, and the former period (from 1911 to 1924) was the period of imitation. In 1911, the Electricity Enterprises Act was promulgated, and the construction of hydroelectric power stations increased, accordingly the production of Japanese water turbines began on a full scale. During World War I, the import of the water turbines made in foreign countries stopped, consequently, many Japanese water turbines were manufactured, and the technology advanced. The Pelton turbines and horizontal shaft Francis turbines with 10,000 kW or less capacity were domestically manufactured. The latter period (from 1925 to 1935) was the period in which the independence advanced. The Kaplan turbines developed in 1910s were domestically produced also, thus the water turbines of all kinds, types and power output became to be domestically produced. The research and development of water turbines became active too. The third period (from 1936 to 1945) was the period in which the independence has been achieved. The vertical shaft spiral Francis turbine with the largest power output in the world and the Kaplan turbine with the second-largest power output in the world were manufactured, moreover, Pelton turbines was exported to Brazil.
- 日本科学史学会の論文
- 1984-07-20