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Characteristic curve and efficiency of a PEM fuel cell and a PEM electrolyser

Product No: P2411100

Principle

In a PEM electrolyser, the electrolyte consists of a proton-conducting membrane and water (PEM = Proton- Exchange-Membrane). When an electric voltage is applied, hydrogen and oxygen are formed. The PEM fuel cell generates electrical energy from hydrogen and oxygen. The electrical properties of the electrolyser and the fuel cell are investigated by recording a current-voltage characteristic line. To determine the efficiency, the gases are stored in small gasometers in order to be able to measure the quantities of the gases generated or consumed.

Tasks

Recording the characteristic line of the PEM electrolyser.
Recording the characteristic line of the PEM fuel cell.
Determination of the efficiency of the PEM electrolysis unit.
Determination of the efficiency of the PEM fuel cell.

What you can learn about

Electrolysis
Electrode polarisation
Decomposition voltage
Galvanic elements
Faraday's law

Materiallist (Excerpt)	Product	Amount
Power supply, universal	13500-93	1
PEM electrolyser	06748-00	1
Cobra4 Mobile-Link set, incl. rechargeable batteries, SD memory card, USB cable and software "measure"	12620-55	1
PEM fuel cell	06747-00	1
Cobra4 Sensor-Unit Weather: Humidity, Air pressure,Temperature, Light intensity, Altitude	12670-00	1
Gas bar	40466-00	1
Digital multimeter 2010	07128-00	2
Connection box	06030-23	1
Fast Charging System for up to 4 MeH Accumulators	07930-99	1
Stopwatch, digital, 1/100 s	03071-01	1
Water, distilled 5 l	31246-81	1
Resistor 10 Ohm 2%, 2W, G1	06056-10	2
Resistor 5 Ohm 5%, 2W, G1	06055-50	1
Resistor 2 Ohm 2%, 2W, G1	06055-20	1
Resistor 1 Ohm 2%, 2W, G1	06055-10	2
Lab thermometer,-10..+100C	38056-00	1
Connecting cord, 32 A, 750 mm, red	07362-01	1
Connecting cord, 32 A, 750 mm, blue	07362-04	1
Short-circuit plug,black	06027-05	2
Connecting cord, 32 A, 500 mm, red	07361-01	3
Connecting cord, 32 A, 500 mm, blue	07361-04	2
Graduated cylinder,100 ml,plastic	36629-01	1
Pinchcock, width 10 mm	43631-10	4
Wash bottle, plastic, 500 ml	33931-00	1
Beaker, 250 ml, low form, plastic	36013-01	1
Rubber tubing, i.d. 6 mm	39282-00	1
Tubing adaptor, ID 3-5/6-10 mm	47517-01	2
Rubber tubing, i.d. 4 mm	39280-00	1
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals	16502-42	1