How does a stove fan work? (Peltier and Seebeck Effect)

How does a stove fan work? (Peltier and Seebeck Effect)
📫𝐎𝐮𝐫 𝐅𝐁 𝐏𝐚𝐠𝐞:
/ scienceworld-106933907...
📚𝐃𝐚𝐯𝐢𝐝'𝐬 𝐁𝐨𝐨𝐤𝐬
📕 𝗪𝗲𝗶𝗿𝗱 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝗜𝗻𝗳𝗶𝗻𝗶𝘁𝘆 𝗮𝗻𝗱 𝗕𝗲𝘆𝗼𝗻𝗱
(www.amazon.com...)
📙 𝗪𝗲𝗶𝗿𝗱𝗲𝗿 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗣𝗼𝘀𝘀𝗶𝗯𝗹𝗲
(www.amazon.com...)
📗 𝗪𝗲𝗶𝗿𝗱𝗲𝘀𝘁 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗙𝗿𝗼𝗻𝘁𝗶𝗲𝗿𝘀 𝗼𝗳 𝗥𝗲𝗮𝘀𝗼𝗻
(www.amazon.com...)
** The kindle versions are available
*** For more details : weirdmaths.com/
📄𝗧𝗿𝗮𝗻𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
This is a Peltier cell. It consists of 2 ceramic wafers and many N and P type semiconductors between the wafers. When we apply an electric current to the cell, one side gets hot and the other side gets cold. This phenomenon is called the Peltier effect. If we change the direction of the current, what was the hot side becomes cold and the cold side becomes hot. The effect is generally used for cooling electronic parts.
Another interesting fact about the Peltier cell is, if we apply heat to one side of the cell, an electric current will flow as long as there’s a heat difference between the sides. This phenomenon is called the Seebeck effect.
Stove fans work without a battery or any other electric source because of the Seebeck effect. When we put a stove fan on a stove, one side of the Peltier cell gets hot and there’s a heat difference between the sides, which generates enough electricity to run the fan. As a result, the heat from the stove is spread more efficiently.
#stovefan #peltier #seebeck

[@RichieAustinMagician]

we have a stove fan and my mind was blown by the simple technology thank you for this explanation

[@BartholomewJenkins69420]

crazy to think that if you showed this fan to someone 100 years ago theyd think its magical. humans are so cool

[@KoniB.]

great explanation. simple and direct.

[@azk9402]

so fascinating , never knew you could generate electricity directly by fire

[@M.Lynchian]

What you don't know could fill a warehouse.

[@ThanatoselNyx]

​@@M.Lynchianquite the compliment.

[@jonnysnipes3123]

Not by fire, by heat

[@jaydencardias1845]

Could a big enough one set on top of the stove power something larger than a fan 🤔

[@osco4311]

It only generates a very tiny amount of power, typically only a few milivolts.

[@masonfelce5498]

I was doing a test for each solar module on a solar panel you put on the backside with this Peletier,only generated 0.7 volts under hot conditions I only used one Peltier for one module, so 0.7×24

[@richardworden9747]

If I was to use 2 of the cells what the big heat sank and a super-efficient fand I put black tape on the hot side and pointed at toward the sun. Could I charge a phone

[@ScienceWorld1]

There are 2 main problems, first, Thermoelectric Generators have max. 8% efficient in converting heat into electricity, and second, the greater the difference in temperature between the hot side and cold side, the greater the electrical power produced. For example if heat difference of hot side and cold side is around 10C, peltier will produce miliwatts. It will be too low to charge your phone. If you want to use sun as heat source, you need to set lots of peltier.

[@murderdoggg]

1:11 Wouldn't the Peltier chip rather be in the wide base at the bottom where the heat is?

[@bobthepotatogod1979]

It can overheat and break, so normally they are on a conductive base with a bi metallic strip underneath to lift it if the base gets too hot, if you had the chip flush it would be difficult to control the heat using this method

[@RadoHudran]

I get the gist of it, thanks 😊

[@mguerramd]

If I put it on the stove and it gets too hot, so that both sides of the cell are about the same temp, will it stop generating electricity?

[@JerryMetal]

the cool side/top side of the stove device has a huge heatsink that radiates heat away from the cool side. But I bet if you would heat it up the fan would stop yeah

[@eastindiaV]

I think thermo cycling actually cools down a hot surface.
So, cooling fins with wires that cycle electric current, would cool better than fins alone.
So you could have a machine gun that uses heat to power a red dot sight, or a digital dashboard powered by the heat from exhaust gasses. Which is what a catalytic converter does.. kinda

[@rupamdutta2849]

Does Mars rover uses this effect to Generate power?

[@ScienceWorld1]

Nope, their source of electricity is radioactive decay of plutonium. We can use Seebeck effect to generate electricity if there is significant heat difference at the same time.

[@jeffneff951]

How come we dont use these to power most of our electronics on hot days?

[@keithwelton]

There has to be a big difference in temperature between the base and the upper part for electricity to be produced. On a hot day the temperature would be fairly equal between the top and bottom of the fan, it needs a big difference in temperature to work.

[@frydemwingz]

I want a huge peltier cell now

[@OngoGablogian185]

In someone else's house trying to get the fire going and I can't figure out how the fck it works.

[@ommsterlitz1805]

Based Peltier discovery 🍷🗿

[@dickiebrewer1232]

Yeah, but HOW does the N and P semi-conductors generate power from temperature differential? You are only showing the result of the phenomenon, not the reason. Good grief!

[@Godwin_100]

As a result of emission or movement of electrons from the N type semiconductor to the P type semiconductor

[@KatteCatherine-m2n]

Martinez Nancy Thomas Nancy Williams Patricia

[@matics7055]

You could use a Peltier cell to make electricity, so the fan could try to power istelf, after the stove heats up. Just mention me if that works :)

[@junkemails5050]

Nah this shit doesn’t work enough, i use an electrical fan on the back of the room, pushing air in direction of the stove, forcing air circulation, blowing cold air to the stove forces the hot air around the stove to move away from it, creating a heat balance. Hot air goes up and cold air goes down but also each particle of air cannot occupy same place