Saturday, October 24, 2009

Perpetua – toodame elektrit õhust http://blog.avatud24.ee/301-perpetua-toodame-elektrit-ohust.html

Perpetua – toodame elektrit õhust
Friday, April 24, 2009 7:26

Postitatud Teadus kategooriasse Pole arvamusiPõhja-USA teadlased said valmis seadeldisega, mis kogub ümbritsevast sooja õhu ning muudab selle elektriks. Tehnoloogia iseenesest pole midagi väga erilist ja uut, sarnane lahendus on praegu näiteks eramajade kütteks kasutatav geotermaalenergia, kus kütmiseks saadav energia saadakse mõne meetri sügavuselt maaõuest, kus temperatuur ei lange alla 4 kraadi. Kuid see siin on vana tehnoloogia uuendamine ja täiustamine, millega suurendatakse efektiivsust, olles samas ka väga innovatiivne ja painduv. Lisaks ei vaja ta ka lisaseadmeid, et elektrit toota – kõik tehakse kohapeal.



See 3 – 6 volti tootev väikene vidin hakkab leidma kasutust suurtes tehnoloogia parkides, kus seadmed toodavad nii palju soojust, et seda on raske kontrolli all hoida. Tootjad lubavad kuni 50% säästmist elektri arvetelt. Müüki jõuab see selle aasta sügiseks.
Andmed:

Kaal – ~60 grammi
Suurus – 4 x 6 cm
Pinge – 3 – 6 volti (võimalik reguleerida)
Võimsus – kuni 1 watt
Hind – seda nad väga avaldada ei taha. Sõltub tellija disainist.


Loe veel: Perpetuapower

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Märksõnad: elekter, energia, perpetua

Based upon the Seebeck effect, thermoelectric generators (TEGs) convert temperature differences across dissimilar materials into an electrical potential, or voltage.

When connected to a load, such as a wireless sensor, this voltage difference causes current flow and renewable power is delivered.

Historically, thermoelectric generators have been constructed with discrete pairs of brittle thermoelectric materials sandwiched between solid porcelain plates, resulting in a rigid and bulky package.

In sharp contrast, Perpetua’s innovative approach applies thin semiconductors onto a flexible substrate using cost-effective and scalable semiconductor manufacturing techniques. Such manufacturing techniques enable Perpetua to combine large numbers of thermocouples easily and reliably, resulting in modules with much higher voltages than conventional thermoelectrics.

Building on over a decade of applied research and development, key differentiating elements of Perpetua's thermoelectric technology include:
• Higher voltages, eliminating the need for boost electronics
• Ease of varying power to match customer requirements (cost-effective sizing)
• Much lighter weight than traditional materials
• Flexible film can accommodate multiple package shapes and sizes
• Cost-effective semiconductor manufacturing techniques that are highly scalable

Perpetua Flexible Thermoelectric Film can save companies 50% or more compared to current battery systems and allow more sensor data to be collected, providing significant competitive advantages for you, our customer.




Powering Wireless with
Renewable Thermoelectric Energy



Reliable energy is produced when heat flows from one side of the module to the other.

Click here for more.




Perpetua Flexible
Thermoelectric Film



Harvesting renewable energy from
temperature differences (dT)

Download the flyer

http://www.perpetuapower.com/technology.htm

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