Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 129, Issue -, Pages 319-328Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2016.10.029
Keywords
Nanofluid; Forced convection; Pressure drop; Heat exchanger
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Funding
- Islamic Azad University, Central Tehran Branch, Iran [1404/74173]
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Flow and heat transfer of nanofluid inside circular and cam-shaped tube bank is studied numerically. Reynolds number for cam-shaped tube bank is defined based on equivalent diameter of circular tube and varies in range of 100 <= Re-D <= 400. Nanofluid is made by adding Al2O3 nanoparticle with volume fraction of 1-7% to pure water. Results show using nanofluid results in higher heat transfer rate for both circular tube bank and cam-shaped tube bank. Also, staggered arrangement has higher heat transfer for both circular and cam-shaped tube bank. Pressure drop from cam-shaped tube bank is substantially lower than circular tube bank for all range of Reynolds number and volume fraction. (C) 2016 Elsevier Ltd. All rights reserved.
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