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A set of generalised correlations is presented for pressure drop across spined pipe in cross-flow. Data taken from Holtzapple and Carranza (1990) were used to develop the equations. Linear regression was employed on 21 different flow geometries, pipe diameter, pipe spacing, and the number of rows were all varied. The equations of correlation were compared with the data of Lockard and Weber (1960), two different flow geometries were used. Overall, 96% of the data was correlated to within 30% error, except for experiment 2 (Holtzapple and Carranza 1990), where only 36% of the data was correlated to within 30%.

KEYWORDS: pressure drop, pipes, air flow, geometry, diameter, spacing, comparing