Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10151941 | Applied Thermal Engineering | 2018 | 13 Pages |
Abstract
The results indicated that the heat transferability and friction loss of the aligned external three-dimensional rectangular-finned tube bank were higher than those of the smooth tube bank, while the comprehensive performance of external rectangular finned tube bank was not always superior. In addition, increasing the longitudinal tube pitch, fin height and fin width or decreasing the transverse tube pitch and fin pitch in the axial direction caused the heat-transfer capability and flow loss of the external rectangular-finned tube bank to increase, which can provide theoretical guidance for the design of a 3D finned-tube heat exchanger. The correlations of the Nusselt number (Nu) and the friction factor (f) for the six-row tube bank were presented, which can be helpful to engineering applications of heat exchanger for clean gas situations.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Juwu Xu, Jing Li, Yudong Ding, Qian Fu, Min Cheng, Qiang Liao,