https://openaccess.iyte.edu.tr/bitstream/11147/1966/1/1966.pdf

Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers

Three-dimensional optimization of staggered finned circular and elliptic tubes in forced convection

This paper deals with heat exchangers having plain fins on a staggered array of circular tubes. Correlations are developed to predict the air-side heat transfer coefficient and friction factor as a function of the Reynolds number and geometric variables of the heat exchanger such as tube diameter, tube pitch, fin spacing, etc. A multiple regression technique was used to correlate 47 sets of heat exchanger data to develop the heat transfer and friction correlation. The correlations are applicable to heat exchangers having small diameter tubes (or large tube pitch to tube diameter ratio), whose performance previous correlations failed to predict adequately. The heat transfer correlation applicable to three or more row configuration predicts 94% of the data within {+-}20%, and the heat transfer correlation applicable to one- or two-row configuration predicts 94% of the data within {+-}20%. The friction correlation predicts 90% of the data within {+-}20%.

Air-Side Heat Transfer and Friction Correlations for Plain Fin-and-Tube Heat Exchangers With Staggered Tube Arrangements

http://nht.xjtu.edu.cn/paper/en/2007228.pdf

P. Carajilescov

Papers

Performance of one- and two-row tube and plate fin heat exchangers