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 It 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 Setpoint 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.
Learning Objectives & 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 Visualisation Of All Relevant Voltage/Current Characteristics
- Calculation Of Relevant Variables
Features
- Water-Cooled Polymer-Membrane Fuel Cell Combined Heat And Power
- Integrated Control And Monitoring Of All Operating And Safety Parameters
Specification
- 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
Technical Data
- Nominal Output: 250W
- Thermal Power: Approx. 400…500W 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)
- 230V, 50Hz, 1 Phase
- 230V, 60Hz, 1 Phase
- 120V, 60Hz, 1 Phase
