ABSTRACT
The use of heat transfer fluids almost invariably involves their transport through pipes and various items of process equipment. The transportation via pumps or compressors will result in an expenditure of energy; the amount of this expenditure depends on the properties of the fluid, the mechanical equipment through which it flows, and the rate of flow. Furthermore, the rate of fluid flow through heat exchangers has a significant influence on the efficiency of heat transfer and therefore on the size and cost of the heat exchanger. Hence an understanding of the laws of fluid mechanics is most relevant to the study of heat transfer media.
