Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Mechanical Engineering
Investigation Of Thermofluid Processes In A Pcm Based Thermal Storage Module, Luca M. Crnjac
Investigation Of Thermofluid Processes In A Pcm Based Thermal Storage Module, Luca M. Crnjac
Electronic Thesis and Dissertation Repository
Latent heat thermal energy storage systems can capture and store solar thermal energy, enhancing the reliability of solar energy by facilitating a continuous and consistent energy supply. However, phase change materials used in these systems suffer from low thermal conductivities making it difficult to achieve suitable charging and discharging rates. The present research investigated this issue using computational and experimental approaches to improve the design of a thermal storage module through heat transfer enhancement. Various heat transfer enhancements including a finned honeycomb structure, and metal wool were incorporated into a thermal storage module to analyze their effect on charging and …
An Investigation Into Computational Modelling Of Melting And Solidification Of Phase Change Materials, Maryam Hemmat
An Investigation Into Computational Modelling Of Melting And Solidification Of Phase Change Materials, Maryam Hemmat
Electronic Thesis and Dissertation Repository
This thesis evaluates the effectiveness of the enthalpy-porosity approach in simulating melting and solidification of phase change materials within latent heat thermal energy storage systems. It systematically investigates the sensitivity of the computational model to four adjustable parameters: mushy zone coefficient, thermal expansion coefficient, solidus/liquidus temperatures, and latent heat. The study includes individual and combined analyses of these factors in simulations of the melting process by comparing outcomes with extensive experimental data, resulting in a calibrated melting model. The calibrated model is validated across various heating conditions in the cylindrical cavity, and then in a rectangular cavity, confirming its reliability …