variavel0=<b>João Roberto Bastos Zoghbi Filho</b> - jrzoghbi@sc.usp.br USP/ São Carlos
<b>José Maria Saiz Jabardo</b> - mjabardo USP/ EESC/ SEM/ São Carlos
<b>Abstract.</b> The present paper reports results from an extensive literature survey involving compact heat exchangers for refrigeration applications. Special attention has been paid to the air side thermal-hydraulic performance. Effects of the main geometric parameters have been investigated, specially those related to tube diameter, number of rows and spacing, fin spacing, and fin surface characteristics. Several correlations for the Colburn and friction factors for heat transfer enhancement fin surfaces are discussed, and their results compared with experimental ones obtained by the authors as part of a comprehensive study of this type of heat exchanger.
<b>Keywords.</b> coils, refrigeration, compact heat exchangers, correlations.