Technical data

Faraday and energetic efficiencies of a PEM fuel cell

Article no: P9516800

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Principle

The efficiency of a fuel cell is an indicator of the efficiency of the energy conversion, whereby a differentiation is made between two efficiency types, the energetic efficiency and the faradic efficiency.

The recovery of electric energy from the energy stored in the hydrogen and oxygen must take place as efficiently as possible, as this is important for cost effectiveness.

The efficiency is dependent on many different factors. A few examples of them are how moist the fuel cell is, at which temperature it is operated and which value the atmospheric pressure has. It is therefore not unusual for the efficiency to differ with different fuel cells.

In this experiment, the different efficiencies of a PEM fuel cell are examined and calculated.

Benefits

Experiment is part of a complete solution set with a total of 10 experiments for Renewable Energy fuel-cell technology
The power supply used is versatile and is particularly suitable for pupil tests for all ages
Doubled learning success: Electric circuit diagram on top, real components can be seen at the bottom

Tasks

Does a fuel cell work efficiently?

Scope of delivery

Connecting cable, 32 A, red, various lengths	07361-01	2
Connecting cable, 32 A, blue, various lengths	07361-04	2
Connecting cable, 32 A, red, various lengths	07360-01	2
Connecting cable, 32 A, blue, various lengths	07360-04	1
Angled connector module, SB	05601-02	3
Junction module, SB	05601-10	4
Interrupted connector module with sockets, SB	05601-04	1
Straight connector module, SB	05601-01	1
Beakers, Boro, low form, various sizes	46055-00	1
Lab thermometer,-10..+110 °C	38056-00	1
Digital stopwatch, 24 h, 1/100 s and 1 s	24025-00	1
Gas storage, SB	05666-00	2
PEM fuel cell for hydrogen/oxygen and hydrogen/air operation, SB	05664-00	1
PEM electrolyser, SB	05665-00	1
Potentiometer module 250 Ohm, SB	05623-25	1
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C	07122-00	2
PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A	13506-93	1