| Project/Area Number |
09680433
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
社会システム工学
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| Research Institution | Kanazawa Institute of Technology |
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Principal Investigator |
MURATA Hideto Kanazawa Institute of Technology, Faculty of Engg., Professor, 工学部, 教授 (10031080)
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| Co-Investigator(Kenkyū-buntansha) |
WAKABAYASHI Hiroaki Kanazawa Institute of Technology, Faculty of Engg., Professor, 工学部, 教授 (90011056)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥2,900,000 (Direct Cost: ¥2,900,000)
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| Keywords | natural energy / model experiment / sprinkling of water / sewage / treated sewage / cooling of ground / 社会システム |
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| Research Abstract |
The ultimate object of the present study is to incorporate the natural energy involved in the circulation of water into our daily life. Specifically in the present report is tried to verify the measurements of field experiments practiced so far using the models of experimented fields.
(1) A measurement system was constructed with a 5-degree-of--motion articulated robotarm put on a linear motion base. The robot grasps a sensing probe or anemometer and measures the velocity of wind on every lattice point in the model. A software system was developed which permits us to check the avoidance of a model and a probe in advance.
(2) A 1 : 2000 model of a ballpark was built. The detection of change in the velocity vector of wind and the temperature was tried when the treated sewage water is sprinkled. Effect of sprinkling is simulated by the on-off of the electrical power on film heaters placed at the diamond of field. Difference in magnitude of measurements could not be detected due to the poor resolution of sensing device used (0.lm/s and 0.1ﾟC) . It was found that the model should be simplified and scaled up.
(3) To verify the effect of cooling of environment, water was sprinkled over pavement in front of a simple building , a six-storied and lOOm long , standing alone in a site of Kanazawa Institute of Technology . Descent of temperature 0.5ﾟC -lﾟC at altitude of 0.5m and wind velocity of 0.5m/s was observed . The computational model of this case was built and analyzed numerically. Descent of environmental temperature at altitude of 0.5m is evaluated as 2.3ﾟC.
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