Basically, I'm heating through match stick and also through hot vesselDo you mean you are trying to run the fan from the Peltier device?
What are the characteristics of the device, and how are you heating it?
Basically, I'm heating through match stick and also through hot vessDo you mean you are trying to run the fan from the Peltier device?
What are the characteristics of the device, and how are you heating it?
Generally,how many volts can peltier produces when it being heated?Peltier devices produce electricity in proportion to the difference between one surface and the other. Even if you cool one side and heat the other you are unlikely to get enough power to run a 12V fan.
I assume you are using a typical 30x30mm cooler. There is little possibility of running anything useful from the power it would produce, and in any case, you will always have to use a great deal more energy to produce that little bit.
The way I'm taking your comment is that you're trying to use a fan as a generator. If you're trying to use the fan to heat or cool the peltier from the energy it creates - that's not going to be enough power. I've seen a peltier flashlight, but it uses three LED's and doesn't produce much light. A fan draws considerably more power than an LED.I try to heat peltier device with 12v 0.18a dc fan.
No,I didn't take fan as generator.i literally heat the peltier through fire.so that peltier can produce electricity.its my thought.The way I'm taking your comment is that you're trying to use a fan as a generator. If you're trying to use the fan to heat or cool the peltier from the energy it creates - that's not going to be enough power. I've seen a peltier flashlight, but it uses three LED's and doesn't produce much light. A fan draws considerably more power than an LED.
You need to track down the datasheet for the particular Peltier device you are using. It will have information about the various capacities.Basically, I'm heating through match stick and also through hot vess
Generally,how many volts can peltier produces when it being heated?
So, should I cool one side and heat another side then will it produces ?As already noted, heating a Peltier device does not generate electricity.
You need a temperature difference between the hot side and the cold side.
Unless you have a very large and stacked array of Peltier device, there is not sufficient power generated to even light a single LED.
Okay but how can I make temperature difference practically ?Please read the posts. This has been stated 4 times.
Put an ice pack on one side and heat the other side with a heat gun.Okay but how can I make temperature difference practically ?
That's a good question.Okay but how can I make temperature difference practically ?
Note that the flashlight in this YouTube video can only be seen in the dark. It can work.Unless you have a very large and stacked array of Peltier device, there is not sufficient power generated to even light a single LED.
"It can work".Note that the flashlight in this YouTube video can only be seen in the dark. It can work.
Makes a great "Dark" indicator. Not to mention the camera compensated by opening the exposure time. But the LED's do light up. Perhaps it takes a bat to see it. Or some other cave dwelling animal.The LEDs barely glow in the dark.
by Jake Hertz
by Duane Benson