A2.7.1.1 Ogniwa paliwowe

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A2.7.1.1 Ogniwa paliwowe

Our experimental equipment for this topic also includes new PEM fuel cells (PEM = Proton Exchange Membrane) built into the vehicle. The hydrogen (H2) is initially split into H atoms at a catalytically active electrode. After losing an electron (- pole) the proton H+ goes through the polymer membrane to the oxygen side, where water is produced as a result of electron gain (+ pole): O2 + 4 H+ + 4 e- => 2 H2O.

Higher voltages are necessary for driving motors. Therefore, like for the battery, many (currently about 200) elements, each of about 1 volt, must be connected in series close to the so-called stack. Since the corresponding energy is not completely consumed directly, a battery is necessary for intermediate storage. However, it can be significantly smaller than for a pure electric drive, for example.

 

The educational system consists of:

  • hydrogen storage (metal-hydride storage unit, content: 1 mol)
  • a fuel cell stack of an aeration pump’s 4 single cells for oxygenation, and
  • an electric loading unit in the classic educational panel style.

 

666 4795 HydroStik PRO, CPS   4 1
666 4812 PEM Fuel Cell Stack, CPS   4 1
666 4831 Electric Load, CPS   4 1
666 4794 Bubble Counter, CPS   4 1
666 4798 HydroFill PRO   4 1
675 3400 Water, pure, 1 l   4 1
726 09 Panel frame T130, Two Level   8 1
500 421 Connecting lead 19 A, 50 cm, red   4 3
500 422 Connecting lead 19 A, 50 cm, blue   4 3
524 013S Sensor-CASSY 2 Starter   4 1
666 484 * PEM electrolysis unit, CPS 1
521 485 * AC/DC Power supply 0…12 V/ 3 A   4 1
501 46 * Connecting lead 19 A, 100 cm, red/blue, pair   8 1
Articles marked with * are not essential, we do however recommend them to carry out the experiment.

 

Marka

Leybold

Firma produkuje zestawy edukacyjne do kształcenia akademickiego oraz szkolenia zawodowego z zakresu fizyki, chemii, biologii oraz elektroniki, elektrotechniki, automatyki, telekomunikacji, maszyn elektrycznych, odnawialnych źródeł energii i fotoniki, jest częścią grupy LD Didactic.