Heat Pumps TRIZ Cases

See how dynamic expansion-device control adjusts refrigerant flow by ambient temperature to pre

See how upstream and downstream air temperature sensors enable real-time refrigerant charge fau

See how automatic refrigerant charging during both heating and cooling modes prevents energy wa

Check valves in a heat pump vapor header prevent heating-mode charge imbalance while preserving full outdoor coil use in cooling.

See how an integrated expander and flash tank with metering valve control enables work recovery

See how inverse piezoelectric diaphragm control eliminates replacement needs by dynamically adj

See how a thermal storage module buffers variable exhaust heat to stabilize cold production in

See how flow switching units isolate the second heat exchanger during start-up to prevent refri

See how a chlorine-free R-744, R-13I1, and R-152a refrigerant blend improves heat pump COP whil

See how interleaved parallel-flow tube sets with dynamic series-parallel switching reduce ice b

See how coordinated throttle control of heating-unit and bypass decompression units maintains s

See how a TRU uses variable-speed compression, three heating modes, and hot-refrigerant defrost

See how a liquid header with longitudinal nozzles formed in internal plates directs refrigerant

See how a TRU switches between hot-refrigerant, electric-heater, and combined heating modes to

See how a freezer control device switches between supercritical and subcritical refrigerant sta

See how integrated refrigerant and air pathways through three heat exchangers serve dual drying

See how dynamic compressor rotation control suppresses discharge pressure peaks during refriger

Compressor hot gas is injected into the outdoor coil to stop frost buildup, avoiding defrost cycles and preserving heating efficiency.

See how a controller dynamically determines system curves using limited-accuracy sensors and li

See how solar irradiance measurement enables feed-forward control in heat pumps, reducing overh

See how a heat pump adjusts low-temperature heat medium temperature via compressor speed and he

Buckling supports and turbulence generators help an SMA heat pump core resist compression failure while improving heat transfer and CoP.

See how curved and straight baffle sections increase exhaust gas flow area and reduce pressure

See how thermal energy reservoirs enable heat pump defrosting without reversing to cooling mode

Quick-connect modules, sensors, and charge control let an air source heat pump scale for larger spaces while improving serviceability and reliability.

See how modular quick-connect assemblies and sensor-driven refrigerant charge adjustment enable

See how dynamic compressor frequency adjustment using real-time evaporation and condensation te

See how dynamic ignition voltage and dwell time adjustment based on temperature, humidity, and

See how a deflection device blocks direct fluid paths in a refrigerant separator, enabling ice

See how a suction superheater prewarms refrigerant before compression to maintain heat pump eff

Nesting a plate subcooler with the accumulator and receiver saves outdoor-unit space while preserving heat exchange and cooling performance.

See how a double-flow heat exchanger uses unidirectional valve control to switch between AC con

See how preheated water spray defrosts heat pump evaporators using stored condenser energy, mai

See how dual heat sink switching with remote and ambient exchangers optimizes CO₂ condensing te

See how a bypass precooling heat exchanger and staged expansion reduce refrigerant temperature

A double-wall indoor heat exchanger uses a vented container to discharge leaked refrigerant outdoors and keep indoor space uncontaminated.

See how transporting adsorbent powder between evaporator, desorber, and cooling apparatus enabl

See how modular heat pumps with hermetically sealed circuits and ring-main connections limit fl

An oblique inner leg lets a polymer bearing shroud stay in contact with the wear ring across temperature swings, preventing contamination and false readings.

Store off-peak grid electricity as thermal energy with independent heat pumps, then use it later to cut peak demand and energy costs.

A heat pump and phase-change reservoirs store grid energy and recover low-grade waste heat without pumped-hydro site limits.

See how dual expansion valves adjust refrigerant pressure through a heat storage body to shorte

An auxiliary battery drives the truck cab HVAC compressor when parked, maintaining heating and cooling without engine idling or excess pollution.

See how a mechanical low-pressure switch placed directly on the heat exchanger prevents refrige

See how a cam-driven lever arm stresses solid mechano-caloric stages to achieve higher Carnot e

See how variable-speed condenser fan control replaces modulating valves to regulate refrigerant

Direct evaporation of district heating water replaces air-cooled condensation and heat exchangers, improving hot-season heat pump performance.

A bypass flow path lets part of the refrigerant skip the condenser or subcooler during heat recovery, cutting pressure drop and preserving cooling capacity.

See how modulating motor-controlled valves enable staged condenser operation in water source he