| Project/Area Number |
17380093
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
林学・森林工学
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| Research Institution | Tottori University |
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Principal Investigator |
ICHIHARA Kouichi Tottori University, Faculty of Agriculture, Associate Professor (60023496)
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| Co-Investigator(Kenkyū-buntansha) |
JINKAWA Masaki Forestry and Forest Products Research Institute, Department of Forest engineering, Team Reader (00353730)
YAMADA Takeshi Forestry and Forest Products Research Institute, Department of Forest engineering, Laboratory Reader (30370290)
TOYOKAWA Katsumi Tokyo University of Agriculture, Faculty of Regional Environmental Science, Professor (30353783)
井上 昭夫 鳥取大学, 農学部, 講師 (80304202)
小林 洋司 東京大学, 大学院農学研究科, 教授 (00111394)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥15,740,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥540,000)
Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2006: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2005: ¥10,500,000 (Direct Cost: ¥10,500,000)
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| Keywords | reduce of carbon dioxide emission / forest engineering / restoration and maintenance of forest ecology system / forest monorail / hybrid system / 林業モノレール / 間伐 |
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| Research Abstract |
Firstly, for purpose of fixing a lot of carbon dioxide by forest and reducing amount of carbon dioxide emission in case of logging, we developed a new forest monorail. When the monorail carrying logs goes down hill, a direct-current motor generates electricity and charge storage batteries. The energy is used to climb hill with no cargo. There is a possibility of realization of zero emission in logging. The conversion efficiency of the system is measured by a trial product of the monorail. The efficiency is 0.50-0.68 in case of converting electric energy into gravity energy and the efficiency is 0.18-0.33 in case of converting gravity energy into electric energy. The conversion efficiency of the system is inefficient for our purpose and zero emission can't be achieved, but amount of fossil fuel is reduced. Next, for purpose of stopping of global warming forest management methods based on environmental ethics is proposed.
Secondary, for purpose of reducing the cost of thinning by the monorail, Following studies are investigated. New prehauling and loading methods by a crane vehicle is proposed. As a remaining tree is used as a prop, an outrigger on the monorail is unnecessary and the movement of the between loading points has been simplified. The optimum synthetic road network is planned by genetic algorithm. This network is composed of forest road on gently slope area and monorail track on steep slope area. Total cost is sum of road network construction and prehauling cost. The cost of optimum road network is the minimum total cost. The work efficiency of laying monorail track is analied and clear that the relationship between slope inclination and the efficiency of monorail track construction. The lay method of monorail track on steep slope is proposed.
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