Heat Pumps TRIZ Cases

Geothermal and aerothermal heat pumps regulate wine cellar temperatures and produce domestic hot water while reducing fuel use and emissions.

See how refrigerant bypass and fan shutoff prevent external heat exchanger frosting in below-ze

See how a heat medium relay unit with parallel and series heat exchangers reduces indoor refrig

A dual-tank thermodynamic circuit heats one liquid food product while cooling another, expanding hot-and-cold production.

See how pre-activating outdoor fans before the refrigerating cycle starts prevents sunlight-ind

See how parallel heat exchangers with bypass piping and flow control enable continuous heat exc

See how an accumulator jacket and supercooling hub reduce refrigerant mass to the indoor unit,

See how a controller delays directional valve switching during heat pump mode changes to balanc

See how refrigerant injection into the compressor intermediate pressure region maintains heatin

See how variable-capacity compressor control and target discharge pressure adjustment enable a

See how a motor-driven obturator and removable seat enable an expansion valve to transition fro

See how optimizing liquid-to-gas temperature difference in a two-stage expansion cycle balances

Conventional counter-flow condensers may need larger cross-sections; lateral vapor entry improves condensation distribution in compact heat pumps.

See how a phase separator routes electrochemically active fluid around the evaporator, reducing

See how a spiral tube inside a shell creates rotating flow to maximize heat transfer area and t

See how dual shell-and-tube heat exchangers with three-way valves enable seamless switching bet

Two expansion valves separately regulate refrigerant flow and evaporating temperature to prevent heat-exchanger frost in low-temperature vehicle operation.

See how phase change materials in thermal mass enable off-peak energy storage and release, redu

See how parallel evaporator and condenser serpentines with damper control increase drying air r

Solar-heated refrigerant changes phase and expands through a turbine to drive HVAC compression, reducing electrical demand.

See how a binary water-ammonia fluid compressed in two-phase state transfers heat from furnace

See how dual AC connections and segmented heating elements let a water heater safely switch fro

See how medium-pressure refrigerant injection into the compressor suction side lowers discharge

See how an open-circuit heat pump evaporates water below 20 hPa, compresses vapor with turbomac

See how an open-cycle heat pump evaporates groundwater at low pressure, compresses vapor with t

See how integrated sorption reactors use adsorption and desorption cycles with dual heat exchan

Bypass passages redirect inlet-side fluid into heat-exchanging passages, limiting stagnation, preserving heat-transfer area, and reducing freezing risk.

See how dynamic fan speed and regulating valves optimize air/water heat pump operation by adapt

An absorption heat pump and switching valves route recovered heat to heating or Rankine-cycle generation, improving annual utilization.

See how wiring switching and high-frequency PWM control enable consistent compressor preheating

See how high-frequency three-phase voltage heats compressor refrigerant on standby without moto

See how a heat pump extracts waste heat from a storage fireplace to prevent summer overheating

An air-to-fluid heat exchanger links radiant floor loops with forced air, storing cooling or heating capacity for lower-cost operation.

Turbulence generators and a condenser laminarizer improve heat transfer, enabling smaller heat pump components without losing power.

See how a heat pump controller uses weather data to select defrost cycles, reducing unnecessary

See how a cascade heat exchanger links two refrigerant cycles to enable rapid water heating and

See how nesting the condenser space around the evaporator eliminates external heat exchangers,

See how rotatable heat exchangers and periodic reverse operation reduce fouling and thermal res

A vapor injection compressor adjusts rotation speed to maintain optimal super-heating temperatures.

See how gradual pre-strain adjustment in elasto-caloric stages extends fatigue life sevenfold w

See how a hardening resin bag body envelops the outer tube in a vertical borehole, reducing wat

See how geothermal heat exchangers replace air cooling in charging columns to eliminate noise,

See how a 3-way valve and bypass line enable five operating modes in a heat pump, reducing refr

See how a hybrid heat pump integrates refrigerant and hydronic loops to provide reheat during c

See how dual-circuit heat pump design with variable-capacity compressors and discharge saturati

See how HFO-153-10mzzy replaces CFCs and HCFCs in high-temperature heat pumps, achieving zero o