Performance Data
Experimental results showing the relationship between stack current, voltage, temperature, and system efficiency.
Stack Efficiency vs. Current
Stack efficiency decreases slightly as current increases, but remains very high (>99.7%). The best system efficiency (64%) was observed at 52 A.
Stack Voltage & Temperature
- Voltage
- Temperature
As temperature increases (up to 50.4°C), the stack voltage drops significantly (from 490V to 472V) due to reduced ohmic resistance, improving efficiency.
Exponential Behavior
The H2 flow rate behaves in an exponential asymptotic pattern with respect to stack current.
Temperature Effect
Higher operating temperatures (up to 51°C) reduce cell voltage requirements, thus improving energy efficiency.
Optimal Load
The system achieves peak performance at 52 A current, producing the best balance of output and efficiency.