Compression Machines With Non-Reversible Cycle TRIZ Cases

Multiple temperature sensors and microprocessor control vary compressor and fan speeds to hold compartment temperatures with lower energy use.

Waste condenser heat regenerates a fine-pore desiccant rotor to prevent adsorbed moisture freezing and keep low-temperature cooling stable.

A valve and second throttle reroute refrigerant around the ejector suction path, cutting bypass pressure loss and improving COP.

A nozzle-turbine expander recovers energy normally lost at the expansion valve, generating power while supporting efficient sub-critical refrigeration.

An elevated coolant tank uses gravity to return liquid at constant pressure, enabling dry heat rejection for high-density electronics cooling.

Using an internal heat exchanger above a defined heat-exchange threshold helps R1234yf cycles recover cooling capacity and COP versus R134a.

By combining service and shut-off functions, this valve block cuts leak paths to one while preserving tool compatibility and flow capacity.

Variable evaporator temperature limits let the compressor adapt to load and ambient conditions, improving cooling efficiency while preventing freeze-up.

Electronically controlled coolant recovery and valve adjustment keep a transcritical CO2 plant efficient in both heating and cooling cycles.

Zinc-chromia catalysts shift hydrohalo fluoroalkenes toward higher Z-isomer levels without the harsh handling and moisture limits of conventional catalysts.

By separating water vapor from liquid antifreeze, this cooling loop improves heat transfer while maintaining freeze protection.

Alternating high and low compressor discharge capacity preserves ejector suction and kinetic energy recovery when cooling demand drops.

Operating tower count by wet-bulb temperature and chiller load cuts fan power while improving overall heat-source COP.

Dynamic condensation pressure control maintains the pressure drop needed for evaporation temperature, preventing cooling loss under high thermal loads.

A shared CO2 cascade loop cools both medium- and low-temperature loads, cutting separate equipment, refrigerant use, and expansion complexity.

Outboard, valved heat exchangers let modular HVAC units be serviced individually while staged activation matches load and limits downtime.

Hybrid free-cooling and mechanical trim let modular data pods handle high-density IT loads with lower energy use across varied climates.

Separate sensor-based control of two refrigerant circuits speeds cascade condenser and storage temperature stabilization in low-temperature cooling.

Processing current or power and liquid-line temperature signals reveals subcooling and condenser temperature for more precise refrigeration fault diagnosis.

An indirect refrigerant passage boosts heat-transfer area inside the compensator, improving charge storage and vaporization in heat pumps.

By raising set temperature when minimum target superheat is high, this control approach cuts compressor power while maintaining indoor heat exchange.

Alternating dual- and single-compressor operation keeps cabinet temperature stable while cutting compressor starts, power use, and wear.

A brass welding plate melts in the furnace to fill tube-baffle gaps uniformly, preventing fluid mixing and reducing heat exchanger defects.

By controlling each indoor valve against average outlet temperature deviation, this case stabilizes supercritical CO2 cooling under pressure changes.

Water applied to a refrigerator condenser lowers condensing temperature, boosting heat rejection and cutting energy use without costly vacuum panels.

Using polyol ester oil with R1234yf in a scroll refrigeration circuit prevents paraffin-forming reaction products and keeps cooling stable.

Controlling R1234yf superheat at 10-16 degrees improves COP while limiting discharge temperature to protect refrigerant oil.

A turbine-driven turbocompressor recovers expansion energy to pre-compress refrigerant, simplifying dual-stage load balancing and cutting power use.

Tangential ports, baffles, and liquid level control cut flash tank turbulence to improve vapor-liquid separation and heat pump efficiency.

Dynamic condenser fan speed control shifts saturated discharge temperature with load and ambient conditions to improve chiller energy efficiency.

An equalizing conduit and flow valve stabilize pumped refrigerant cooling under varying heat loads while cutting control complexity and floor space.

Sensor feedback and a secondary expansion valve hold flash tank liquid level to stabilize refrigerant charge in transcritical cycles.

A tuned non-azeotropic refrigerant blend keeps the low-pressure circuit above vacuum at −45°C, reducing air ingress, decomposition, and maintenance.

A modified accumulator entrains liquid into suction vapor so the evaporator and compressor receive the right refrigerant quality with lower power use.

Using two-phase refrigerant before the capillary throttle improves pressure drop and boosts evaporator capacity in an ejector cycle.

Transfers condenser heat to the accumulator to improve refrigerant recovery efficiency and purity without separate heaters or cooling fans.

A flow distributor splits liquid and gas refrigerant paths to keep ejector nozzle efficiency and COP stable under changing heat loads.

Specific Lewis acid and chromia catalysts shift fluoropropene isomer blends toward higher Z-isomer content for refrigerant synthesis.

Calculating condenser liquid phase area ratio enables accurate automated refrigerant filling without manual pipe length input or heating-mode errors.

Pressure and temperature monitoring identifies faulty tandem compressors, reheat, economizer, and bypass functions to keep refrigerant systems running efficiently.

A single door-mounted cooling loop serves fridge and freezer compartments, cutting complexity and energy while enabling adjustable temperature zones.

Rack-mounted cooling modules add aircraft cooling capacity through shared ram-air and refrigerant interfaces, avoiding major retrofit downtime.

Combining the evaporator and accumulator in one enclosure saves aircraft cooling space while metering liquid refrigerant to protect the compressor.

A flash tank sized to 10-30% of total system volume stores CO2 refrigerant and separates vapor-liquid flow in transcritical cycles.

A multi-position damper controls airflow and blocks defrost heat to protect cargo temperature and humidity in transport refrigeration.

A hermetic barrier layer, tubular conduit, and sealed cavity help a refrigerator door hold vacuum longer, cutting heat loss and improving cooling.

A dual refrigeration cycle supercools the main refrigerant and recovers condenser waste heat for hot water, boosting cooling capacity and efficiency.