👉 The concept of a recirculating system refers to a process in which an object or substance is continuously replenished with its own substance. This replenishment occurs over a long period, typically several months, and is usually done through a physical process such as evaporation, condensation, or chemical reactions. In the context of renewable energy systems, recirculating systems can be particularly useful because they enable the continuous replenishment of the fuel (e.g., coal, oil) required for generating electricity.
