Modeling of Thermal-hydraulic Characteristics of H-type Finned Tube Using Response Surface Methodology

摘要

The heat transfer and pressure drop characteristics beside air-side of H-type finned tube are investigated numerically in a scientific design of experiments by response surface methodology (RSM). Eight factors including seven geometric parameters and Reynolds number are examined with 120 numerical cases in total. The analysis of variance (ANOVA) confirms an adequate accuracy of the reduced quadratic model of thermal-hydraulic characteristics obtained from RSM. Correlations of heat transfer and pressure drop characteristics, which describe 99 % of numerical data within ±10 % deviation and 94 % within ±15 % deviation, respectively, are presented with the interactive effects between factors. This methodology might be a guideline to reduce time and cost to obtain correlations of thermal-hydraulic performance over heat transfer structures.