An Analysis of geometry characteristics of metal oxide blocks on heat flow rate using Finite Element Analysis

In this study, cylindrical varistor samples were designed with similar boundary conditions using ANSYS simulation software. Parametric analysis using finite element analysis (FEA) was conducted in a bid to analyse the impact of geometry characteristics of MOV samples on the heat transfer rate for a period of 30 seconds. Simulated MOV samples were subjected to thermal stress ranging from 20°C to 125°C. Simple linear regression analysis (SLR) was used to determine the relationship between the surface area of MOV blocks and heat transfer rate. Simple layer regression in Artificial Neural Networks (ANN) was used to validate the result from SLR. Results from both ANN and SLR show linear relationship between surface area and heat transfer rate, also a correlation between design geometry of the MOV blocks and heat transfer rate as well as time.