Thermal performance of nanofluids in heat transfer loops. Issue 4 (December 2020)

• Record Type: Journal Article
• Authors: Praveena Devi, N; Rao, Ch Srinivasa; Kiran Kumar, K
• Is Part Of: IOP conference series. Volume 981:Issue 4(2020)
• Publication Date: 2020-12
• Subjects: Nanofluid -- heat transfer loops -- Natural circulation loop -- forced circulation; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/981/4/042029
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Theoretical investigations have been carried out to find the advantages of using different nanofluids in Forced Circulation Loop (FCL) are presented in this paper. FCL finds its application in different heat transfer systems. Compared to the Natural Circulation Loop (NCL), FCL offers better heat transfer due to the higher heat transfer coefficient and more diffusion. Comparison among different chosen nanofluids has been made. Five different water based nanofluids (Al2 O3, CuO, Cu, SiO2 and TiO2 ) have been chosen for the study. In order to calculate performance parameters, thermal conductivity and viscosity of nanofluids are measured and remaining properties are calculated based on the available correlations. From the present investigation it is found that using of nanofluids is beneficial in the way that it brings compactness to the heat transfer loops. Of course, there is trade-off between pressure drop and heat transfer characteristics and these aspects are also discussed.