Validation of Continuous Conjugate Heat Transfer Model Through Experimental Data

This research aims to examine the accuracy of a model used in density-based topology optimization of conjugate heat transfer systems with an inherently porous solid, such as ceramics. The case study involves investigating fluid flow and heat transfer inside a tube with a monolithic catalyst support internal. The validation includes simulating different flow rates (0.4, 0.7, 1.1 kg/h) in a non-reactive environment, utilizing identical honeycomb monolith geometry as reported in the experiments. This study addresses a significant gap in the existing literature: the lack of experimental validation for models relating to porous materials. The model's validation against experimental data is essential in asserting its credibility and applicability in the dynamic field of topology optimization. The model predicts temperature distribution and pressure drops, which are then compared with experimental data. Numerical simulations are conducted using COMSOL (R) Multiphysics for different flow rates, allowing for a comprehensive evaluation of the model. The findings reveal an acceptable discrepancy between simulated and experimental results, with an average relative error of 7.35% for pressure drops and 0.38% to 1.5% for temperature distributions, thereby demonstrating the accuracy of the model.