Instrumentation Systems   Short Stack type Fuel Cell Evaluation Test Equipment     The equipment is PEFC type short stack evaluation test equipment consisted of gas supply line, moisturizing line, cooling line, cell performance line and safety line. Features Standalone and compact equipment Mixed gas with optional mixing ratio can be produced by setting total volume and mixing ratio of each gas. Cell is protected by over-flow protection function. Gas utilizing ratio constant control. Tafel measurement (IV characteristics), Resistance measurement (option) Stable humidification control, Humidification unit water temperature (+30°C to 90°C), Long term stable operation by humidification unit self-cleaning system, High-speed humidification response (within 3 min - option) High-speed response cooling system Resistance measurement at conduction of fuel cell (option) Various options including pressure test, humidity measurement, etc. Automatic operation by exclusive control software (CISAS-EX) for controlling of parameters such as gas flow, bubbler temperature, pipe temperature control, load current, etc. for evaluation tests. Specifications Gas supply line Gas Maximum flow Control range Hydrogen (H2) 30NL to min 0.6 to 30NL/min Carbon dioxide (CO2) 15NL/min 0.3 to15NL/min Mixed gas 1NL/min 0.02 to 1NL/min Air 100NL/min 3.0 to 100NL/min Purge nitrogen Fuel side Air side About 10NL/min each No control Flow setting accuracy: ±1% of F.S. Flow control range: 2% of maximum flow to maximum flow Repetition accuracy: Within ±0.25% (indicated value) MFC response time: Within 1 second Moisturizing control line Moisturizing range: Within room temperature+30°C to 90°C±1°C (at stabilized) Moisturizing capacity: 95%RH or more Material: SUS316 Temperature drop at water supply: Within 1°C Water supply: Automatic power supply (Ion exchanged water of 6M or more) Moisturizing tank automatic cleaning system: Built-in Stack cooling line Cooling water temperature: +20°C to 90°C, ±1°C Cooling water flow: 1 to 5L/min, ±1% flow meter range Control system: Inlet temperature/flow constant control Inlet temperature/temperature difference constant control Cooling capacity: 1.5KW Running pressure control line (option) Pressure control range: maximum 500kPa, within ±5kPa Pressure response: Changing by test gas flow/equipment capacity Operation control software Stable software being used in various industrial applications Automatic forwarding of testing items Excellent performance to noise Reduction of CPU load Exclusive software part for fuel cell The software changes process conditions by sequencing numbers of sheets writing test. After judgment of stability, it automatically collect data. (Electronic load unit control) (1) Initial activation automatic operation (2) Load current sweep test=Tafel test Electronic load (several hundred W to several hundred kW) As a bias power supply corresponding to 0V, it can be used in a single cell. 3 ranges of current settings, high accuracy of ±0.3% of F.S. For wide frequency from 5mHz to 30kHz For resistance measurement of IR drop, frequency fixed alternative method, frequency sweep alternative method Items Specifications Load mode Constant current/constant resistance/constant power Discharge voltage range 0 to130V Maximum current 0 to 1,560A Maximum load power 0 to 100kW Current setting 3-range, ±0.3% of F.S. Constant voltage setting 0 to 130V/0.01V, ±0.2% of F.S. Constant power setting 3-range, ±0.8% of F.S. Voltage measurement 1-range, ±0.1% of F.S. Current measurement 2-range, ±0.3% of F.S. Resistance measurement 3-range,10/100/1000m Page Top BACK