Specifications
Investigation of a polymer-membrane fuel cell
Water cooled system in combined heat and power
Hydrogen supplied via standard pressure vessel
High-pressure   reducing   valve   for   hydrogen pressure vessel supplied
Oxygen supplies directly from the ambient air
Precise adjustment of all operating points via electronic load
Operation without external humidification
Sensors  for  flow  rate,  pressure,  temperature, voltage and current strength
Complete operation and evaluation via a PC Software with control functions and data acquisition via Windows 7, 8.1, 10 
Water-cooled / Air cooled polymer-membrane fuel cell combined heat and power
Integrated control and monitoring of all operating and safety parameters

Fuel cells are energy converters that, unlike heat engines, convert chemical energy directly into electrical energy. Heat is generated as a by-product during this process. The main component of PEM Fuel Cell Trainers Order Code : 32501 is a polymer- membrane fuel cell which is operated in combined heat and power generation. The system is supplied with high-purity hydrogen from a pressure vessel on the anode side and with oxygen from the ambient air on the cathode side. The fuel cell is operated either current-regulated or voltage-regulated via an integrated electronic load. The set-point of the electronic load allows a precise adjustment of all operating points and a very accurate recording of characteristics. The technically usable thermal energy is dissipated to the environment via a cooling circuit and can be accounted for via the integrated instrumentation. The water accruing during operation is collected in a water separator. In the fuel cell’s dead- end mode the accruing water is disposed of via a configurable purge valve for hydrogen. The system is operated via a PC. Auxiliary energy for pump, fan and control required for operation is provided from the mains. The moisture in the stack can be regulated via adjustment of the purge valve, so that no external humidification is  required.  All relevant measuring values are recorded to work out the fuel cell’s energy balance. The measured values are transmitted directly to a PC via USB. The Sci-tech data acquisition software is included.

Technical Specifications
Nominal output: 100W/250W/500W/1000W
Thermal power: approx. 150 ~ 200% depending on ambient conditions
Required ambient temperature: 5…35°C
Required inlet pressure: 2…200bar

Measuring ranges Flow Rate:
0…0,5L/min (cooling water)
0…20sL/min (hydrogen)
0…100sL/min (air)
Pressure: 0…500mbar (hydrogen)

Temperature:
0…50°C (ambient)
0…70°C (stack)
Humidity: 0…100% (ambient)
Voltage: 0…40V (stack)
Current: 0,1…20A (stack)

Experiments
Conversion of chemical energy into electrical and thermal energy
Function and design of a fuel cell system
Relationships of fuel cell operating parameters
Effects on the electrical performance of fuel cells
Recording   and   visualization   of   all   relevant voltage/current characteristics
calculation of relevant variables

Requirements
Mains Power 220 – 240V @ 50Hz, 1Ph & 400 – 440V @ 50Hz, 3Ph