Fuel Cell Auxillaries TRIZ Cases
- SOFC Turbocharger Start-Up Air Switching to Prevent Gas Flow Reversal
Gradual blow-valve closing and control-valve opening stabilize SOFC turbocharger start-up by preventing gas flow reversal.
- Fuel Cell Hydrogen Estimation With Degradation-Corrected Crossover
By closing the discharge valve and correcting crossover for degradation, this case improves fuel cell hydrogen estimation and durability.
- Cascade Fuel Cell Recirculation for Stable Output and Steam Supply
Recirculating second-stage exhaust gas preserves steam and fuel concentration in cascade fuel cells, stabilizing output during load changes.
- Fuel Cell Housing Layout With External Modules for Thermal Stability
External system modules on a rigid fuel cell housing improve thermal dissipation, compact packaging, and assembly in motor vehicles.
- Fuel Cell Purge Control Using Cumulative Current to Limit Nitrogen Crossover
Cumulative current guides air pump speed and purge valve opening to curb nitrogen crossover, cut hydrogen loss, and stabilize fuel cell output.
- Fuel Cell Coolant Valve Switching for COD Heater Shutdown Purging
Integrated coolant valve switching and COD heater use remove residual oxygen and power during fuel cell shutdown to prevent cathode corrosion.
- Fuel Cell Stack Pressure Comparison for Cross-Leak Detection
Comparing anode and cathode pressure in stopped fuel cell stacks improves cross-leak detection and helps exclude pipeline leakage.
- Fuel Cell Stack Impedance Control for Dry-Wet State Recovery
Impedance-based dry-wet detection triggers reset control in fuel cell stacks to correct drying or over-wetting under high-load operation.
- Fuel Cell Shutdown Cooling and Air Admission for Carbon Corrosion
Active cooling before cathode air admission ends hydrogen protection with lower hydrogen use while limiting shutdown carbon corrosion.
- PEM Fuel Cell Fluoride Sensing for Membrane Degradation Monitoring
Inline fluoride microsensors at fuel cell exhaust enable real-time membrane degradation monitoring and predictive maintenance.
- Flow Battery SOC Estimation Using Negative Electrode Plating
Combining ORP data with negative electrode plating efficiency improves flow battery SOC accuracy and helps trigger cleansing when side reactions grow.
- Fuel Cell Cooling Pump Timing for Air Removal and Heat Control
Variable circulation pump stop times purge air from the cooling channel at startup while limiting fuel cell overheating during power generation.
- Fuel Cell Power Control Using a Dynamic Lower Power Limit
A dynamic lower power limit keeps fuel cell output above a deterioration threshold while storing excess power during load drops.
- Direct Liquid Fuel Cell CO2 Bubble Suppression by Inert Gas Bubbling
Inert gas bubbling strips dissolved CO2 from direct liquid fuel, preventing electrode bubble stagnation and improving power generation efficiency.
- Layered Fuel Cell Piping Around Bulky Auxiliary Components
A layered auxiliary device case uses separated coolant and cathode discharge paths to avoid bulky parts and reduce fuel cell packaging size.
- Fuel Cell Anode Purge Estimation for Hydrogen Concentration Control
By estimating purge flow and gas-specific discharge in the anode recirculation line, this case improves hydrogen concentration control and fuel cell durability.
- Parallel Fuel Cell Air Compressor Sequencing for Fast Restart
Sequential stop timing based on compressor speed and rotor alignment cuts air supply delay and helps protect parallel fuel cell stacks.
- Fuel Cell Stack Retensioning for Stable Compression Sealing
An adjustable retensioning element restores fuel cell stack compression as elastic bands age, improving sealing and avoiding tension spikes.
- Fuel Cell Maintenance Timing Using Temperature Drop Prediction
Predicts when a fuel cell has cooled enough for service, helping vendors avoid idle wait time and schedule maintenance more accurately.