Heat Recovery Systems TRIZ Cases

See how a counterflow heat exchanger uses hot supply water nozzles to prevent deposit buildup,

See how a double-pipe system with secondary fluid recovers waste heat from hot water return lin

See how exhaust gas heat recovery from a condensing boiler preheats heat pump evaporator air, r

A fresh-water bypass refills the heat pump tank directly, avoiding wastewater contamination and speeding cooled-liquid regeneration.

An added air-side heat exchanger and liquid regeneration loop improve washing machine heat-pump efficiency while limiting ice buildup.

Selective spray nozzles clean lint from specific heat exchanger regions, preserving airflow and heat release with less water and pump power.

A heat pump dries and reheats condensing-boiler exhaust after heat recovery, enabling chimney reuse without moisture-tight renovation.

Parallel mass-produced heat pump units give commercial dryers high heating and cooling capacity with lower cost, flexible control, and fail-safe drying.

Potential temperature and available heat are compared across sewage, wastewater, and other sources to cut HVAC energy use while maintaining supply reliability.

Waste heat from decentralized cabin coolers is transferred into the aircraft air extraction path, cutting air-conditioning load and fuel use.

Waste heat from cabin cooling is transferred to process air, avoiding separate heaters in aircraft work areas and cutting energy use and noise.

A bead-stiffened top plate raises natural frequency to suppress exhaust-gas resonance noise while preserving latent heat recovery.

A hot water jet cleans shower greywater heat exchangers, preventing deposit clogging while maintaining efficient counterflow heat recovery.

A helical channel around a bowl-shaped flushing base improves wastewater heat recovery while avoiding residue traps and hard-to-clean surfaces.

An exhaust-line heat exchanger and buffer store help a heat pump heater recover flue heat while avoiding inefficient cycling and moist chimney issues.

A reversing valve lets the heat pump cool or heat process water, protecting delicate laundry from shrinkage and discoloration.

Preheating inlet water to 20-30°C and placing the heat pump near use cuts line heat loss, water waste, and energy demand.

Treated wastewater is routed through buildings and recharge basins to recover year-round thermal energy while reducing direct aquatic discharge.

Low-temperature condensate return and vacuum-driven drainage eliminate steam traps, improve heat distribution, and help condensing boilers run efficiently.

A closed liquid tank lets a heat pump store latent heat below 5°C, cutting appliance power use while avoiding waste-water deposits.

Integrated wall sections form both the heat exchanger chamber and supply lines, cutting assembly effort, corrosion risk, and deposit buildup in wastewater pipes.

Shared heat-pump thermal storage lets a washer and dryer reuse waste heat, cut energy use, and support lower-temperature fabric drying.

Selective spray nozzles clean lint from dryer heat exchanger regions using limited condensation water, preserving heat exchange efficiency.