Thermoelectric USB charger

Today we are going to generate electricity from the difference in the heat it's nothing but Seebeck effect. We have to select the optimum material which is having high Seebeck coefficient. If we put in series also its mard even to generate 10mV. Peltier materials.

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We'll join two metals and bring that junction to a certain temperature, then put a second identical junction to a different temperature. It's very simple, but it should create electricity. It should be pointed out that each metal has its own Seebeck coefficient, and that the iron-aluminum couple is, by far, the most efficient one regarding common metals. Fortunately, we can do much better than that, thanks to manufactured goods which gather many junctions with specific metals. They are called Peltier modules.

Project Description:

Now let's see what happens with a flame. The heat flow, moving from the hot side the cold one, makes it work. The moment we stop heating the module, the produced voltage decreases. We are also going to use a little radiator on the hot side so that the flame's heat equally spreads on all the junctions. Contrary to what one might think, to produce as much voltage as possible with a single flame, it is better to use a single Peltier module, which can easily be heated at a very high temperature. If you put several modules, the power spreads, the temperature of each module decreases and it produces less. It’s a consequence of the second law of thermodynamics.

1. Heat source: You need some amount of heat energy in the form of a candle, boiler, heat of the engine, furnace or lighter.

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1. Peltier material: Adopt TEC1-12706 semiconductor,Include 1*TEC1-12706, 1*conduction cool module, 1*water block, 1*fan, 1*thermal grease, 1*baseboard and a pack of screws.
2. USB Module: short for Universal Serial Bus, is an industry standard that was developed to define cables, connectors, and protocols for connection, communication, and power supply between personal computers and their peripheral devices.
3. Rechargeable LIacid battery: A rechargeable battery, storage battery, secondary cell, or accumulator is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use.
4. Boost converter module: This is a DC-DC boost converter step-up power module with a high-precision potentiometer, and it uses XL6009E1 with the second generation of high-frequency switching technology as core chip so that its performance is much higher than the first-generation technology LM2577. With high switching frequency of 400KHz, even small-capacity filter capacitors can bring with very nice results, while the ripple is less and the size is smaller.

Final Step:

You have to assemble the USB Module and Boost converter to the rechargeable battery you can charge your electronic devices from Free heat energy.

• USB
• Boost converter
• TEC1-12706 semiconductor
• electric device

• peltier effect
• free energy

Thermoelectric USB charger