دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a piping arrangement that permits heat from one fluid to be transferred to another fluid as they travel counter currently to one another. In the heat exchanger of an emulsion-treating unit, heat from the outgoing clean oil is transferred to the incoming well fluid, cooling the oil and heating the well fluid. In the heat exchanger of a glycol dehydration unit, heat from the hot lean glycol flows through the inner flow tube in the opposite direction of the cool rich glycol, which flows through a shell built around the tube.