Performance analysis of louvered fin tube automotive radiator using nanofluids as coolants
by Jahar Sarkar; Rahul Tarodiya
International Journal of Nanomanufacturing (IJNM), Vol. 9, No. 1, 2013

Abstract: Nanofluids, the new generation heat transfer fluids, offer higher heat transfer properties compared to that of conventional automotive engine coolants. Energetic and exergetic analyses as well as theoretical performance analyses of the louvered fin tube automotive radiator using nanofluids as coolants have been done to study its performance improvement. Effects of various operating parameters using Cu, SiC, Al₂O₃ and TiO₂ nanofluids with 80% water - 20% ethylene glycol as a base fluid are presented in this article. Use of nanofluid as coolant in radiator improves the effectiveness, cooling capacity with the reduction in pumping power. SiC-80% H₂O-20% EG (base fluid) yields best performance in radiator having louvered fin geometry followed by Al₂O₃-base fluid, TiO₂-base fluid and Cu-base fluid. The maximum cooling capacity improvement for SiC is 15.34%, whereas that for Al₂O₃ is 14.33%, for TiO₂ is 14.03% and for Cu is 10.20% as coolants and enhancement in second law efficiency for SiC is highest (20.13%) followed by Al₂O₃ (19.60%), TiO₂ (19.14%), Cu (16.85%) nanofluids compare to base fluid as a coolant alone. Present study reveals that the nanofluids may effectively use as coolant in automotive radiators to improve the performance.

Online publication date: Mon, 31-Mar-2014

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