@inproceedings{843d3b4880ea4ae6b3cf1d505713e9f2,
title = "Liquid flow distribution in compact parallel flow heat exchangers",
abstract = "This study experimentally and numerically investigates the single-phase flow into parallel flow heat exchangers with inlet and outlet rectangular headers having square cross section and 9 circular tubes. The effects of inlet flow condition, tube diameter header size, area ratio, flow directions (Z and U type), as well as the gravity are investigated. The experimental results indicate that flow distribution for U type flow is more uniform than Z type flow. Depending on the inlet volumetric flow rate, the flow ratio at the first several tubes can be lower than 50% of the last tube for Z type arrangement, and this phenomenon becomes more and more pronounced with the rising velocity at the intake conduit. The mal-distribution can be eased via reducing the branching tube size or increasing the entrance settling distance at the intake conduit. It is found that the influence of gravity on mal-distribution is negligible and the mal-distribution is associated with the jet flow pattern. The numerical result also shows a small eddy flow formed at the inlet of the first tube by the nearby vortex circulation which would reduce the flow rate to the front tubes.",
keywords = "flow distribution, header, parallel flow heat exchangers",
author = "Chen, {Ing Youn} and Tsai, {Jhong Syuan} and Chi-Chuan Wang and Yang, {Kai Shing}",
year = "2011",
month = sep,
day = "29",
doi = "10.1109/ICCSN.2011.6014907",
language = "English",
isbn = "9781612844855",
series = "2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011",
pages = "333--337",
booktitle = "2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011",
note = "null ; Conference date: 27-05-2011 Through 29-05-2011",
}