Surupa Shaw, Dominga Guerrero
Abstract: This paper presents a comprehensive review of theoretical investigations concerning the influence of Newtonian fluids on heat transfer processes. Newtonian fluids are characterized by a constant viscosity that remains unaffected by variations in shear rate. Their widespread utilization in heat transfer applications is attributed to their consistent and stable flow behaviour, facilitating easier modelling and analysis. A prominent exemplification of the application of Newtonian fluids in heat transfer lies in electronic cooling systems. These fluids, typified by substances like water or oil, efficiently dissipate the heat generated by electronic components through circulation within the cooling system. Moreover, Newtonian fluids play a pivotal role as heat transfer agents in heat exchangers, wherein an array of tubes facilitates the exchange of thermal energy between two fluids separated by a conductive partition. In addition, within the realm of industrial processes, Newtonian fluids find utility in mixing tanks and reactors for tasks ranging from heat transfer between different phases to the maintenance of uniform temperatures within the vessel. The consistent behaviour and low viscosity of Newtonian fluids render them exceptionally effective in mediating heat transfer across diverse applications. This paper presents a comprehensive comparative study between air and Newtonian fluids as heat transfer media in various industrial applications. The objective is to assess the advantages, limitations, and suitability of each medium in different scenarios, considering factors such as thermal efficiency, cost-effectiveness, ease of implementation, and environmental impact. This study embarks on an exploration of the multifaceted utilization of Newtonian fluids in both industrial and consumer contexts, shedding light on their indispensable role in enhancing heat transfer processes.
Keywords: Newtonian, Heat transfer, Heat exchangers, Fluids, Reactors, Mixing tanks.
Date Published: October 18, 2023 DOI: 10.11159/jffhmt.2023.016
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