Reactant Parameters Control TRIZ Cases

One fuel cell unit powers another unit's air compressor to defrost the humidifier, cutting resistor losses and shortening cold start.

Thermal expansion and contraction drive anolyte and catholyte flow, removing pumps to cut flow battery weight and complexity.

Electrolysis load is adjusted to grid demand across distributed hydrogen stations, cutting transport costs and avoiding inefficient reconversion.

A mixed Fe/V electrolyte limits V5+ precipitation at high temperature, raising flow battery energy density while preserving stability.

A flexible network plus flame-retardant surface coating helps fuel cell ducts keep structural integrity under hydrogen and humidity.

Separate valve and nozzle holders with sealing members improve leak prevention, flow control, and fit across fuel cell vehicle sizes.

Directly joining intercooler, valve, and branch flow interfaces removes piping, shrinking the fuel cell air path and easing replacement.

Molten metal electrodes and an endothermic regenerator enable compact, dendrite-free heat-to-electricity conversion with high efficiency.

Recirculated cathode exhaust and separated liquid humidify compressed inlet air, avoiding bulky humidifiers in aircraft fuel cell systems.

A dual exhaust duct routes flow to a drier upper path, improving hydrogen mixing and sensor accuracy despite moisture in FCEV exhaust.

Misaligned communication holes and a dummy cell redirect liquid water to discharge paths, helping fuel cell stacks maintain stable power generation.

Metal alloy hydride storage replaces heavy high-pressure or cryogenic tanks, enabling compact, safer hydrogen supply for fuel cell generators.

A detachable fuel cell and tank module heats the battery and cabin in cold weather without draining EV battery range.

Pulse control keeps fuel velocity high at low flow rates, improving ejector off-gas circulation before switching to proportional control.

Independent control of hydrogen partial pressure and inlet pressure cuts fuel cell gas-supply retuning time while improving response.

An encircling load-absorbing compartment between frame rails protects heavy-duty vehicle energy storage while freeing space for larger packs.

Pressure sensing, valve shutoff, and residual gas consumption allow tank replacement only when channel pressure stays below a safe threshold.

A tapered turbine wheel and shroud raise turbine efficiency by lowering velocity ratio, reducing stack inlet pressure and compressor load.

Dynamic air cut-off valve control helps fuel cell stacks recover output voltage during cold starts while limiting water freezing and shutdown risk.

By lowering vessel target pressure before refueling and limiting power on low supply pressure, this case avoids hydrogen starvation in fuel cell mobility.

By estimating condensate buildup from fuel cell operation, the drain valve removes water while limiting hydrogen loss and separator blockage.

An encircling load-absorbing module between frame rails protects heavy-duty vehicle energy storage while freeing space for larger systems.

A single recirculation line and purge valve simplify multi-stack fuel cell fuel routing while preserving independent stack operation.

Dual fuel gas supply lines switch ejector flow during subfreezing start-up to limit catalyst deterioration and prevent ice in fuel cell components.

A bypass flow path supplements the ejector at high demand, preserving circulation efficiency and stable fuel supply to the fuel cell.

A ramped header and inert edge areas keep slurry flow uniform, avoiding eddy currents, particle buildup, and edge plating in flow battery cells.

Shared fuel and oxidant supply systems cut auxiliary machine volume, helping modular fuel cell units fit tight installation space.

A dual-tank metal hydride layout supplies hydrogen at −40°C for fuel cell startup without external heating or bulky pressure tanks.

Selective disconnection of nonessential auxiliary loads cuts wind turbine energy use while preserving critical power for hydrogen production.

An organic electrolyte and ambient-air redox layout removes bulky storage tanks, cutting flow battery footprint, cost, and hazard.

A rectangular modular layout packs fuel and oxidant supply hardware into limited space, reducing auxiliary size, dead space, and cost.

An expander recovers hydrogen compression energy while valves and a controller deliver faster, more precise fuel pressure to engines or fuel cells.

Dual valves and an expander bypass recover hydrogen compression energy while improving pressure control for engines and fuel cells.

A fuel cell permanently linked to the hydrogen tank powers valve control during parking, limiting boil-off pressure without external power.

A heated auger reactor converts solid hydride fuel into hydrogen on demand, cutting the weight and volume of high-pressure storage.

Heated air from a hydrogen fuel cell sterilizes rooms without chemical residues or noisy engine-driven heaters, while UV and filtration add treatment.

Closing shared air valves and recirculating exhaust air lets multi-stack fuel cells inertize during downtime and limit oxygen-driven degradation.

A protruding annular sealing portion improves fuel cell valve sealing by deforming more easily while reducing wear on the valve-seat seal.

A downstream inert-gas bypass purges the fuel cell stack anode without the conditioning device, cutting purge time and hydrogen loss.

Air compressor control dilutes discharged hydrogen during sensor offset compensation to prevent cathode backflow and stack durability loss.

A mobile refueling unit draws electrical power from the host to run its compressor, cutting size, cost, and grid dependence.

Reserve tanks and valve control recover excess hydrogen from fuel cell supply pressure swings, cutting gas waste and avoiding atmospheric release.

A siphon-based water discharge path and drainage valve keep fording water away from the turbine while preserving fuel cell exhaust flow.

A catalyst reactor adjusts liquid hydrogen carrier volume and flow to deliver continuous hydrogen while balancing storage density and release kinetics.

Coordinated purge and air discharge pressure control stops hydrogen from one fuel cell module flowing into another through a shared discharge pipe.

Real-time water electrolysis supplies hydrogen during refueling, cutting large tank infrastructure, transport cost, and handling risk.

Hydrogen recirculation between anode and cathode consumes residual oxygen at start-up, reducing voltage imbalance and carbon corrosion.

Pressure monitoring in shared hydrogen fill and supply piping detects check-valve leak risk before delivery to the consuming apparatus.

Semi-solid electrode slurries raise redox flow battery energy density beyond solubility limits while preserving reversible ion storage.