Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 266, Issue -, Pages 797-805Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2018.07.009
Keywords
Second law analysis; Nanofluid; Entropy generation; Helical twisted tape; Turbulent flow
Funding
- National Sciences Foundation of China (NSFC) [U1610109]
- Yingcai Project of CUMT [YC2017001]
- PAPD
- UOW Vice-Chancellor's Postdoctoral Research Fellowship
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In this research, entropy generation and forced convection heat transfer of Al2O3-water nanofluid in a heat exchanger equipped with helical twisted tape is investigated via Finite volume method. Influences of height ratio (BR), pitch ratio(PR) and Reynolds number (Re) on nanofluid entropy generation are reported. Suitable formula for entropy generation is provided. Results reveal that thermal entropy generation decreases with rise of BR and Re. Frictional entropy generation augments with rise of height ratio. (C) 2018 Elsevier B.V. All rights reserved.
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