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Author Topic: How do you convert Heat into stored Energy/Electricity?  (Read 10634 times)

vironika

  • Guest
How do you convert Heat into stored Energy/Electricity?
« on: May 18, 2012, 08:12:51 AM »
Hi everyone,

I am no expert in any means, so if what I am asking is silly, just tell me.

This is an example.

Lets say I have a stove top, and I turn it on full for an hour. Without putting anything on it, how can I harness the heat energy and store it, into lets say something like a battery, or anything I can use to power something.

The stove top is giving out some great heat for an hour. I am wondering if there is a way to harsness the heat energy the stove top is giving off, and storing it.

Does this make any sense?

_______________

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Free Energy | searching for free energy and discussing free energy


Offline truesearch

  • Sr. Member
  • ****
  • Posts: 260
Re: How do you convert Heat into stored Energy/Electricity?
« Reply #1 on: May 18, 2012, 04:57:52 PM »
@vironika:

There are well-proven ways of converting LARGE quantities of heat into electrical energy such as generating steam which spins a turbine attached to an electrical generator. The resulting electrical energy can be stored in a battery or capacitor.

However, smaller scale conversion would be more challenging while maintaining efficiency. There is a webpage over at ScienceDaily that discusses this. Link: http://www.sciencedaily.com/releases/2011/11/111109093555.htm
This appears to be using the "peltier-effect" (wiki: http://en.wikipedia.org/wiki/Thermoelectric_effect)

truesearch


Offline mscoffman

  • Hero Member
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  • Posts: 1379
Re: How do you convert Heat into stored Energy/Electricity?
« Reply #2 on: May 18, 2012, 08:29:32 PM »
Well first don't think that something like this hasn't been thought of already.
There is fan you can sit on top of and old fashioned wood cook stove so that
it can disperse its heat into a room effectively and be driven by heat energy.
There is a person who advocates building peltier thermal modules to convert
heat from stoves or wood burning furnaces to electricity. I saw one where
you can use your camp-fire to recharge your cellphone or GPS unit. Finally
most professional energy saving cook-stoves keep an energy storage buffer
called a "shoe" hot so that a restaurant stove can be brought up to temperature
with minmum delay and maximum fuel efficiency.
 
:S:MarkSCoffman
 
 

Offline sparks

  • Hero Member
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  • Posts: 2533
Re: How do you convert Heat into stored Energy/Electricity?
« Reply #3 on: May 18, 2012, 11:40:56 PM »
     If you are in a tank that is evacuated or inside a big vacuum tube you won't get hot by convection.  There is no intervening media to transmit the molecular vibrations and movement commonly referred to as heat.  You will get hot by the absorption of infrared photons though.  Somebody plugs in an infrared heater and makes it glow you'll get hot. The technology now exists to convert radiant energy into electricity but has only been designed for the near infrared frequencies and visible.  I would imagine that by the use of flurescents infrared photons could be converted to lower frequency photons and captured on larger antennae not requiring as much nanotechnology. 


Offline taiso

  • Newbie
  • *
  • Posts: 3
Re: How do you convert Heat into stored Energy/Electricity?
« Reply #4 on: June 20, 2013, 07:23:05 PM »
我把我之前想法與部份做法告訴你...
你可以參考看看...


但是...
你必須看懂中文...
某一問題將導致你是否願意...
繼續創作下去....
也是我當初碰到瓶頸...


我使用是太陽能熱水器...


太陽能熱水器原理
http://www.sanjue.com.tw/compare.html
做為集熱主體...
但是並不是用水...
而是用機油...(耐熱/高溫/高流動性)
效果是跟直接水管集熱一樣.
你也可以用汽車散熱器用水箱精+純水.效果一樣.
依照我設計確實可以發電...因為我試過....
只要溫度超過攝氏50以上...
儲水筒隔熱綿要塞更紮實!(但是需要改裝後才塞.筒外需要散熱...)
[size=78%]而且需要改裝...[/size]
[size=78%]發電部份我是使用 PN半導體致冷器...[/size]
[size=78%]一般又稱為溫差發電晶片..[/size]
Thermoelectric Cooling Chip / [size=78%]Peltier Cooler / [/size][size=78%]Thermoelectric Cooling Module[/size]
[size=78%]以下介紹[/size]
http://www.tande.com.tw/te-index.htm


安裝時需要注意PN面...
相關數據
http://www.tande.com.tw/te-power-generators.htm


安裝時需要改裝集儲水筒...
 PN半導體致冷器...並不便宜.
雖然可以用手掌溫度發電...
但是整組儲水筒改裝上去後...
價格非常高...
非我一人所能負擔.


注意...
PN半導體致冷器
熱面直接接儲水筒儲水金屬面...
冷面則接筒外金屬面.但是筒外需要散熱....
隔熱綿很重要.安裝時PN排列上要有紮實隔熱綿.
如果裝的好...
一般儲熱應該超過6小時以上.
維持水溫50度以上...


放大電壓部份...
你可以自行設計升壓器.
或是購買 TXL 公司產品.
http://www.txlgroup.com/applications.html




這最大問題是...
PN半導體致冷器 要訂製...因為儲水筒關係...
我是 自己改裝...兩層N之間夾銅線才成功...
但是整個改裝下...就受不了...
當時預計應該有超過 70萬 TWD 以上[size=78%]...[/size]
[size=78%]你自己試過...[/size]
[size=78%]就會知道我在說什麼!!![/size]
[size=78%]
[/size]

Free Energy | searching for free energy and discussing free energy

Re: How do you convert Heat into stored Energy/Electricity?
« Reply #4 on: June 20, 2013, 07:23:05 PM »
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