2002 Fiscal Year Final Research Report Summary
Electrical power generating system from the pneumatic power to progress Information Technology of Process Instruments
| Project/Area Number |
13650272
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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 |
Intelligent mechanics/Mechanical systems
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| Research Institution | Tokyo Denki University (2002)
Tokyo Institute of Technology (2001) |
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Principal Investigator |
FUJITA Toshinori Tokyo DENKI University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (70242279)
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| Co-Investigator(Kenkyū-buntansha) |
MITSUI Kazuyuki Tokyo DENKI University, Faculty of Engineering, Professor, 工学部, 教授 (60209799)
KAWASHIMA Kenji Tokyo Institute of Technology, Precision & Intelligence Laboratory, Associate Professor, 精密工学研究所, 助教授 (40300553)
KAGAWA Toshiharu Tokyo Institute of Technology, Precision & Intelligence Laboratory, Professor, 精密工学研究所, 教授 (50108221)
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| Project Period (FY) |
2001 – 2002
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| Keywords | Fluid Control / Pneumatics / Process Control / Generator / Vibrator / Air Bearing / Analysis of Efficiency |
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| Research Abstract |
In the field of process control, the Information technology advances most in comparison with other field. However, there is seldom an electrical infrastructure necessary for the information technology, because the process equipment is used in the place with explosion hazard-ness. The purpose of this study is to propose the new electrical power generating system from the pneumatic power that actuates process instruments, and to develop this. The vibrator part of the proposed generating system consists only of piston and cylinder and generates the self-induced vibration. The coil is installed at the top of piston and the movement of the coil in magnetic field generates electricity. It is a very simple mechanism. The research was mainly carried out on efficiency and analysis, pressurized air bearing at the piston, rectifier circuits of the electricity energy of the generator. The outline of research is concretely shown in the following.
1. The efficiency of the proposed generator was very low. However, when its parameters were changed adequately, the efficiency has the highest point for the parameter where it is over 10%.
2. It is necessary to realize noncontact between the piston and cylinder in order to obtain the long life of the generator. Then pressurized air bearing being with the stepped shape is installed the generator. The performance is analyzed of the bearing and has sufficient for the generator.
3. In proposed generator, rectifier circuits are also important problem because a process instruments needs DC power source. Rectifier circuits am made and electric power is supplied a process instruments the through it. The generator is able to drive the process equipment, though the fluctuation of electric power could not be followed.
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