In a gravity feed system, which term describes the vessel that supplies heat exchangers?

In a gravity feed system, the surge drum serves a crucial role by acting as a vessel that supplies liquids to heat exchangers. It is designed to maintain a steady liquid level so that it can provide a consistent flow of fluid without interruption. The surge drum accommodates fluctuations in flow that can occur due to changes in demand or process conditions. By ensuring an adequate supply of liquid, the surge drum helps optimize the operation of the heat exchangers, allowing them to function efficiently as they transfer heat between different process streams.

The other terms, while relevant in various contexts, do not fulfill the same function. An accumulator generally collects and stores fluid under pressure to release it when needed. A recirculator typically refers to a system that reuses fluid within a loop, while a high-pressure receiver usually holds gas or vapor under pressure and is associated with processes like refrigeration or gas storage.