Ricircolo

Ricircolo is the Italian term for recirculation, referring to the act of circulating again within a system, usually in a closed loop, to reuse energy, heat, or fluids and to maintain stable conditions. The concept is used across technical, industrial, environmental, and biomedical fields, often to improve efficiency, conserve resources, or control quality.

In engineering and process systems, ricircolo describes closed-loop circuits in which a coolant, heating fluid, or process liquid is continuously circulated. This includes cooling circuits in engines and power plants, heating and air conditioning systems, and industrial processes where heat exchange and uniform temperatures are required. In water treatment and industry, recirculation can reduce water consumption and enable more consistent operation. Recirculating aquaculture systems (RAS) use treated water that is continually reused, with filtration and sterilization ensuring water quality.

In automotive engineering, the term is closely associated with the recirculation of exhaust gases, known as exhaust gas recirculation (EGR). EGR feeds a portion of exhaust back into the intake to dilute the air–fuel mixture and reduce nitrogen oxide emissions, though it can affect engine efficiency and buildup of deposits if not properly managed.

In physiology and pharmacology, ricircolo can refer to natural or drug-related recirculation processes within the body, such as enterohepatic recirculation, where substances are reabsorbed and reused, influencing duration of action and dosing.

Overall, ricircolo denotes the reuse and redistribution of materials within a system, aiming to improve efficiency, control, or sustainability.