Modeling and investigation of an electric cement cooker having different heat source configurations Available to Purchase

This study models an electric cement cooker and investigates the natural convective heat transfer mechanisms (from heat source to receiver) inside the system for different heat source arrangements. Two scenarios are examined: one with a single heat source at the midpoint of the cooker and the other with four identical pin-shaped heat sources evenly distributed along the bottom wall, both with isothermal conditions. For parametric analysis, the solution of the governing PDEs, such as for continuity, momentum, and energy equations, is obtained by using FEM scheme. Numerical simulations are conducted for Rayleigh numbers ranging from 10³ to 10⁷, with a constant Prandtl number of 0.71. Additionally, an aspect ratio of 0.1 is considered for the conducting body, with a conductivity ratio of 20. After a thorough qualitative and quantitative analysis, it has been confirmed that the second scenario consistently yields a higher convective heat transfer over the first configuration for the range of Ra > 10⁶.