Reactant Parameters Control TRIZ Cases

An internal partition wall and pit contain leaked electrolyte inside the battery container, avoiding external dams and shortening installation.

A common intake and filter feed both compressors, cutting openings, lines, and energy use while preserving separate fuel cell and pneumatic airflow.

Pluggable stacked flow capsules enable simultaneous state-of-charge, current-density, and electrolyte diagnostics for faster flow battery screening.

Relief-slot flanges and dielectric rings help a fuel conduit stay electrically isolated and hermetically sealed under thermal expansion up to 1000°C.

Injector faults are detected faster by comparing commanded and sensed downstream fuel gas pressure when fuel cell current exceeds a threshold.

Pressure deviations between parallel gauges enable in-situ fault diagnosis and calibration during hydrogen refueling without stopping station operation.

A coaxial hollow-fiber layout removes flow distributors, expands membrane area, and raises electrochemical flow-cell power density.

A three-chamber rebalancing cell manages H+ transfer and Fe species cross-over to prevent precipitation, clogging, and electrolyte imbalance.

A zoned fuel cell vehicle layout moves the battery underfloor and hydrogen tanks rearward to free cabin and trunk space while shortening high-voltage wiring.

A dual-section flow channel lets one throttle flap actuator deliver precise fuel cell pressure control, low open-position loss, and tight sealing.

A heat-triggered emission compound carries micro hydrogen leak signals along an elongate path for fast, reliable detection beyond local sensor coverage.

A conical tank-neck seal and preloaded screw assembly protect the safety valve under high hydrogen pressure while reducing leak risk.

Stored electrolyte power keeps the circulation pump running during outages, enabling redox flow battery discharge without a UPS.

Removable catalyst cartridges keep on-demand hydrogen release efficient while simplifying replacement of degraded catalyst units.

A linear-rotary oxygen valve opens a large flow cross-section in fuel cells while maintaining tight sealing, low space use, and seal life.

Shore-based stack charging replenishes watercraft anolyte and catholyte without full tank exchange, preserving ballast and continuous power.

Separate charging and discharging units with ion exchange membranes prevent gas mixing, reduce corrosion, and stabilize metal battery cycling.

A multilayer liner balances shock resistance and hydrogen barrier performance by controlling EVOH water content and vapor transmission.

An actively controlled valve lets fresh hydrogen bypass recirculation and blocks jet pump backflow, reducing pressure loss across fuel cell loads.

Selective mixing-valve duty cycles rebalance redox flow battery tank chambers, limiting capacity loss and hydroxide formation.

Frame through-holes and channels balance liquid electrodes, limiting crossover and separator deformation in redox flow batteries.

Negative catalyst-bed bias and deionized water flushing remove anionic complexes, preserving flow battery rebalancing and capacity.

A pressure-driven poppet and added flow path let one ejector balance low-load suction with high-load hydrogen supply in fuel cell recirculation.

A switchable communication port lets an ejector nozzle vary flow path size, sustaining both low-flow velocity and high-flow capacity.

Integrated spiral fuel and oxidant channels improve gas delivery while recovering heat and collecting current in compact solid-oxide fuel cells.

A lattice flow straightener calms turbulent intake-manifold airflow after bends, improving fuel cell cathode mass air flow sensor accuracy.

Switchable series and parallel compressors cut inertia and power draw while maintaining fuel cell airflow and pressure across operating points.

Potential sensing detects fuel cell reversal and raises fuel gas supply to stabilize power output and extend stable air vehicle flight.

A parallel bypass valve and sized ejector keep fuel flow and entrainment ratio stable across fuel cell operating ranges while cutting parasitic load.

Cooling water is switched through the stack, heater, radiator, and hydrogen storage to keep fuel cell temperature stable without separate loops.

A symmetric backplane routes air and electrical interfaces to cut pressure loss, simplify module connections, and improve fuel cell scalability.

Pressure and temperature feedback limit hydrogen output when vaporizer heating medium freezing is detected, protecting pipes from cryogenic damage.

A bypass-switched heating loop keeps vaporizer inlet temperature in range, preventing hydrogen output loss and cold-damage risk.

Parallel jet pumps recirculate fuel cell anode gas with only one check valve, cutting space and freezing risk while preserving reverse-flow protection.

Ambient temperature and radiation sensing controls hydrogen venting during fire exposure to relieve pressure without triggering ignition.

A rotatable guide member redirects relief gas by gravity-based orientation, avoiding restricted discharge directions as vehicle attitude changes.

Waste gas from one fuel cell stack is fed to another to raise power while cutting compressor and humidifier energy and space needs.

Pultruded thermoplastic cylinders with angled fiber reinforcement cut porosity and excess fiber use in high-pressure hydrogen tanks.

Channel-shaped conductive mounts transfer refueling heat from hydrogen tanks into the vehicle body, enabling faster continuous fills without costly station pre-cooling.

Ambient-pressure feedback keeps fuel cell intake and exhaust pressures near sea-level conditions, preserving power and reducing wear at altitude.

By calculating inert gas mixing in supplied fuel, the control unit adjusts flow and degassing timing to maintain hydrogen concentration and avoid shutdown.

Baffles route anode and cathode gases through edge seal chambers to create pressure drop, improving flow uniformity and stack planarity.

A three-layer membrane assembly maintains a pH differential so one flow cell can capture CO2 and store electrical energy at high power density.

At low fuel cell output, injector and solenoid valve switching maintains the hydrogen threshold and ejector off-gas circulation.

Relief-slot flanges create ceramic bonding points that preserve hermetic sealing and electrical isolation under fuel cell thermal expansion.

Cathode pressure impulses clear excess condensate while humidity, temperature, and pressure settings keep fuel cell current density stable.

An integrated normally closed magnetic cathode valve blocks air ingress during hydrogen depletion, reducing air/air starts and stack damage.

Detachable anolyte and catholyte tankers let a mobile redox flow battery deploy quickly while scaling storage and simplifying fluid and thermal control.

Post-stop voltage monitoring detects minute fuel cell valve leaks after oxygen consumption, improving sealing fault detection and efficiency.