Electrolyzer Characterization System

The Electrolyzer Characterization System is a laboratory-grade platform designed for in-depth testing of PEM electrolyzers in green hydrogen generation. It features five stackable cells plus additional variable-area cells, powered by a programmable DC supply for precise I–V characterization. A distilled water system with conductivity sensors and peristaltic pumps ensures controlled water quality and flow, while gas handling units with dryers, separators, and flow meters provide accurate hydrogen and oxygen measurement. Operating conditions such as temperature, pressure, and flow rate can be independently adjusted and monitored via a PC-based control and logging interface. Built-in safety systems—including overpressure shutdowns, leak detectors, and solenoid cut-offs—guarantee secure operation, making the platform ideal for research on efficiency, degradation, and operational optimization of electrolyzers.

Key Features

Electrolyzer Cell & Stack Configuration:
Includes five stackable PEM cells plus three additional cells of varying sizes for comparative research.
Precise Power Control:
Programmable DC supply (0–15 V, 0–100 A) with PC interface for I–V characterization and efficiency testing.
Water Management System:
Integrated distillation unit, conductivity sensors, and peristaltic pumps for high-purity water delivery.
Gas Handling Units:
Includes dryers, separators, flow meters, and pressure controllers for safe collection of H₂ and O₂.
Real-Time Monitoring:
PC-enabled dashboard for live display and logging of temperature, flow, voltage, current, and pressure.
Safety First:
Automatic shutdown on overpressure, hydrogen leak detection with alarms, and solenoid cut-off valves for safe operation.
Variable Control Parameters:
Adjustable temperature, flow rate, voltage, current, and pressure for condition-based optimization.
Research Ready:
Supports studies on efficiency, degradation, water quality impact, renewable coupling, and advanced control algorithms.
Data Logging & Analysis:
Exportable data (.CSV) for visualization, comparison, and long-term performance tracking.
Renewable Integration:
Can simulate fluctuating renewable inputs (solar/wind) for dynamic load response studies.

Learning Module

Cell & Stack Characterization

Perform I–V characterization of single cells and multi-cell stacks.
Compare performance of electrolyzers with different active areas (20, 30, and 50 cm²).
Measure hydrogen output, efficiency, and energy conversion under controlled operating conditions.

Operating Conditions & Optimization

Study the effect of temperature, pressure, and water flow rate on hydrogen yield and purity.
Optimize system efficiency by adjusting voltage, current, and flow parameters.
Simulate dynamic load conditions from renewable sources to evaluate electrolyzer responsiveness.

Safety, Control & Research Applications

Validate automatic shutdowns, leak detection systems, and overpressure protections.
Implement and test PID or advanced algorithms for automated control of flow, temperature, and pressure.
Extend experiments to hydrogen storage integration, degradation studies, and techno-economic analysis of green hydrogen production.

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