Ram air duct for an aeroplane air conditioning system
Rankine-cycle-engine-driven cooling-and-heating system
Refrigeration and heating system
Refrigeration apparatus
Refrigeration system
Refrigeration system
Refrigerator and freezer
Regenerative condensing cycle
Reversible mechanical-thermal energy cell
Rotary heat exchanger
Rotary heat exchanger with cooling
Rotary heat exchanger with cooling and regeneration