Influence of Nano-Fe2O3 concentration on thermal characteristics of the water based Nano-fluid. (2022)

• Record Type: Journal Article
• Authors: SN Ch Dattu, Vinjamuri; Rao Roniki, Venkateswara; Reddy Prasad, Puthalapattu; Raju Tupati, Pothu; Gayatri Devi, N.; Chavakula, Rajyalakshmi
• Is Part Of: Materials today. Volume 62:(2022)Supplement 4
• Page Start: 2392
• Page End: 2395
• Publication Date: 2022
• Subjects: Nano-fluids -- Nano-iron oxide -- Viscosity -- Thermal conductivity -- Heat transfer; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.04.995
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The heat transferring characteristics of the working fluids in thermal systems are the key factors which decide the performance of the thermal systems. The recent researches proposed the use of nano-sized particles in low fractions within the base fluids to enhance their heat transport behavior. Among the different thermo-physical characteristics of the nano-fluids, the thermal conductivity is considered to be the chief parameter if the enhancement in heat transfer in required. In this work, a water based nano-fluid containing nano-iron oxide (Fe2 O3 ) in varying mass proportions (0.0%, 0.1%. 0.2%, 0.3%, and 0.4%) was investigated for its heat transfer capabilities. The thermal conductivity variation and the proportionate variations in the absolute viscosity of the nano-fluids were assessed in a wide range of temperature. The findings revealed that the thermal conductivity was improved with the increment in mass fraction of nano-iron oxide and also with the upsurge in temperature. Conversely, the absolute viscosity was increased with the loading of nano-iron oxide and the decreasing trend in absolute viscosity was reported with the rise in temperature.