Heat Transfer Investigation Inside Heated Pipes of Different Cross-sections

Abstract

This research examines the thermal transfer efficiency in pipes including various cross-sectional geometries, such as circular, square, and triangular shapes. A computational fluid dynamics (CFD) methodology was used to model  flow conditions and examine heat transfer and turbulence intensities under consistent boundary conditions. The results indicate substantial variations in thermal and flow characteristics across the geometries. Circular pipes provide greater convective heat transfer efficiency and minimum temperature gradients, but square and triangular pipes show more turbulence accompanied by a higher pressure drop. These insights may guide the design of efficient piping systems for many technical applications, including HVAC, chemical processing, and renewable energy systems.