都市塵芥處分による電力發生の第壹歩

On the city Refuse a great deal has been written in foreign countries from the Samitary stand points and disposal of it has also been discussed for twenty years or more since. But on this heading there is available comparatively little authentic information.<br> In our country, little attention is given to the disposal as well as to the establishment of the Refuse destructing industries.<br> Now, the refuse disposal is gradually growing into one of the most difficult problems in municipalities. Evolution and the centralizing of population in the cities gradually demand larger equipment and better methods of Refuse Destruction in large quantities.<br> A description of the City Refuse is desirable, particularly for those who may not be familiar with the Japanese city refuse and it is probable that the average man does not realize what a diverse class of fuel is referred to.<br> But the writer does not touch these points too much at present; for he already offered some reports for these points.<br> The detailed information of Refuse and its disposal will be found in some of writer's reports offered to the Osaka municipality and the General description of Refuse as a low grade fuel will be found in the paper read before the meeting of Kansai Local Section of the Electrical Society. (Journal of the Institute of Electrical Engineers of Japan, No. 383. pp 323-358 Jane 10th 1920; Discussion: No. 391 March 10th 1921)<br> The writer interds to analize more particularly at this time the City Refuse as fuel and the results which have been secured with its use in a testing installation.<br> The experiments were made for steam generation and distillation, but this report is described mainly on results of steam generation.<br> The steam generating test was made for three kinds, viz the steam pressure of 7 atm. 10 atm. and 14 atm. and the data of 14kg. per sq. cm steam pressure experiment are chiefly reported.<br> From these results we see that the equivalent evaporation from and at 100°C was 1.04-1.15kg per kg. of Refuse whoes moisture content was 44.7%-49.5% in its weight and its calorific power in dry state was 1, 800-2, 100kg. cal.<br> The writer suggests that there are many problems to be solved before the comparison of steam generation and distillation works.<br> There has not been a use of city Refuse in power plant up to the present time in our country. Therefore the available in formation on this subject is not very extensive and we wish you would bear this in mind and realize that later experiments and tests may indicate that results can be secured different from and far better than those referred to herein.<br> It is the writer's hope that this branch of works in our country may be spurred to rapid advancement.