Download - Piezoelectric Generator Team Akamon
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Piezoelectric GeneratorTeam Akamon
Yuki Yamagishi Huijun Park Hongmei Liu Shen Jiang (Andy)
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2011 Tōhoku earthquake and tsunami
What made it so difficult to save lives?Electricity supply stopped, then…
> Medical equipments stopped ⇒ couldn’t treat the patients…
> Traffic lights didn’t work. ⇒ traffic accidents took people’s lives
> Even if someone may be still alive, we were not able to know their locations
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So many power plants, then why!?
Why couldn’t we transport electricity to those area?• Thermal Power Generation(61.7%)• Hydro Power Generation(8.1%)• Nuclear Power Generation(29.2%)
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etc...
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Localized Power Generation
If the power plants are separated
OR⇒
Then even one is attacked, no damage for others.
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Methods:Solar energy
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Low head hydro power
Kankakee Low-Head Hydropower Facility in Illinois (1.2 megawatts installed capacity)Source: National Renewable Energy Laboratory(NREL)
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Wind power
But what we are going to focus on is ...
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Piezoelectric generator
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Power-generating Floor (PGF)
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The theory of power generating floor
When pressured
Pressured
ion arrangement changes Electric
energy
-----Piezoelectric effect
*Picture on the right is from "Piezoelectricity",Wikipedia
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Application of the piezoelectric effect
touchpad
gyroscope
speaker
clock
igniting
printer
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condenser Supply energy
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What're the merits?
• No fossil fuels required
• No waste
• No contamination
• Low cost
• No restraint of location
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Our project is…..
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How much energy can we get from this project?
If we introduce “energy generating floor” into expresswaysof Tokyo Metropolis …
Energy production per day = (2000/60) * (18000/0.25) * 1100000
=2.6*1012(J/day)=720,000kWh
1(J) of energy is produced when 60kg person makes a 0.25m pace.
On expressways of Tokyo Metropolis1,100,000 of 2,000kg vehicles run 18km per day on average.
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Data:
•Total length: 322.5km •Average daily traffic: 1,100,000 cars per day•Average driving distance: 18 km per vehicle•Average vehicle weight: 1345kg ( considering people and freight that vehicles carry, at least 2000kg should be used in these rough calculations)•Electricity output by PGF: 1Ws (60kg person steps on the floor in 1 second)•Size of one PGF: 30cm×60cm •Daily average electricity consumption per household in Tokyo: 10kWh•Amount of households in 23 districts of Tokyo: 4,322,539 (2010)
So we can provide 1.5% electricity consumption merely by PGF under the expressways of Tokyo Metropolis.
Data sources: pp.103-105, 12/15/2008, Nikkei Electrocis; 4/27/2011, Nikkei News; "Shuto Expressway", Wikipedia; Maebara Seiji, Minister of Land, Infrastructure, Transport and Tourism, during Q&A of publication of new expressway fare system; Annual report by Metropolitan expressway Co,. Ltd.
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What is more...
"The efficiency of PGF has been increased by 30 times during the last 6 years (2005-2010). And it still has the capacity to increase at least 10 times."
"The electricity produced by PGF underneath the expressways of Tokyo Metropolis will accound for 40% of the electricity consumption by households in 23 districts of Tokyo."
---according to President Hayami of Soundpower Corporation
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How can we use piezoelectric generation during the emergency ---like earthquake?
•Hospitals: large enough to supply electricity consumption of medical equipment, when only electricity is cut off during the emergency.
•Traffic signals: still will work depending on the PEGF, because where there is a road, there is electricity (our motto ^^)
•"Emergency Positioning System(EPS)":
wired positioning system of PGF :
wireless signal sending system:
So, if you are out of iPhone's power, and looking forward to rescue corps, just find an intact road and jump!!!
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Constraint
•Cost
•Maintenance
•Efficiency
•Durability
•Stability
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In a nutshell
power generation dispersion= risk dispersion
Save lives
Where there is a road,
there is electricity.
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Thanks for listening