Generalised momentum transfer correlations are presented for five selected compact heat exchangers - bare pipe, helically finned pipe, plate-finned pipe, spined pipe and plate heat exchangers. Momentum transfer correlations relating to these heat exchangers are compiled from a review of the heat transfer literature. The correlations are explained in detail. Items such as, observed flow phenomenon, dimensionless variables used to account for exchanger geometry and fluid flow, and correlation error are discussed at length.

KEYWORDS: surveys, compact heat exchangers, heat exchangers, flat plate heat exchangers, extended surfaces heat exchangers, fluid flow, pressure drop, friction factor.