How Can We Generate Electricity At Night By Thermoelectric Effect. by malay11

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· @malay11 · (edited)
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How Can We Generate Electricity At Night By Thermoelectric Effect.
Today major source of renewable energy is the solar energy. But solar power device can generate electricity only during daytime at presence of Sun.
![images.png](https://cdn.steemitimages.com/DQmbCYiHfkB1ud4DYLJ6jJFn5gWMeEne1Ki56NtWnNZyTDU/images.png)
Image Credit : http://eprints.utem.edu.my/17874/1/1287-3568-1-SM.pdf

Can we imagine that any device can generate electricity during night time?

Yes it is possible now as scientists from Stanford University developed a device which can generate power in night time with the help of radiative cooling nature of atmosphere.

They developed a thermoelectric generator which generate electricity at night by Seebeck Effect(https://en.m.wikipedia.org/wiki/Seebeck_effect).

 All we know that all materials released heat by thermal radiation into space and reaching a cooler temperatures than the surrounding air. Scientists used this temperature difference to produce electricity through thermoelectric effect.

They used a Aluminum disk covered with polystyrene enclosure to reduce thermal radiation and also protected by infrared transparent wind cover.

They placed the device on a top of a table one meter above roof . The device absorbed heat from surrounding air and release heat into the sky through radiation by a black emitter.

The thermoelectric device uses a voltage boost converter. When thermoelectric module connected with a LED light it will glow. The device generate electricity 25 MilliWatts of power per square meter surface area.

This is very simple device and very cheap but efficiency is very low now. But scientist trying improve its efficiency by reducing heat gain of the material and using better thermoelectric material Scientists also trying so that the device can be used in hotter and dry climate.

If the device is working effectively 20 times more than today it can be working all over world and producing cheap electricity at night.

Source : https://scitechdaily.com/transformative-device-generates-energy-from-the-cold-night-sky-when-solar-doesnt-work/amp/
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@lemouth ·
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Hello!

We would have loved to support this within the SteemSTEM project. However, the image accompanying your post does not look to be free to use. Please consider changing it if you wish to fit the [SteemSTEM guidelines](https://steemstem.io/#!/faq). Thanks in advance for your consideration.
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@malay11 ·
Hello @lemouth thanks for considering my post for steemstem acount. I change my picture. The picture is taken from pinterest.com. please have a look. Next time i post from steemstem.io
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@scienceblocks ·
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Hello @malay11. This post is interesting for sure. However, I am not so sure about the copyrights of the image used. The pin you mention belongs to the following website.  https://www.homemade-circuits.com/making-thermoelectric-generator-circuit/  They don't specify their image use policy, however you can see a copyright 2019 logo at the bottom. It's best that you check for the license of image you want to share. You can go through this link for checking the copyright guidelines - https://steemit.com/steemstem/@steemstem/guidelines-on-copyright-standards-in-steemstem

If you have any further question, you can always ask us on discord. 

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@lemouth ·
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Hello!

We would have loved to support this within the SteemSTEM project. However, the image accompanying your post does not look to be free to use. Please consider changing it if you wish to fit the [SteemSTEM guidelines](https://steemstem.io/#!/faq). Thanks in advance for your consideration.
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<div class='text-justify'> <div class='pull-left'> <center> <br /> <img width='200' src='https://res.cloudinary.com/drrz8xekm/image/upload/v1553698283/weenlqbrqvvczjy6dayw.jpg'> </center>  <br/> </div> 

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@malay11 ·
Thanks @steemstem for everything.
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