Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
Experimental analysis of a solar thermal energy storage system based on phase change materials (PCM) for air heating applications
Submission Author:
Amaury Oquendo , Other , Colombia
Co-Authors:
Amaury Oquendo, Duban Villadiego, Jesús David Rhenals Julio, Arnold Martinez, Jorge Mario Mendoza Fandiño
Presenter: Amaury Oquendo
doi://10.26678/ABCM.ENCIT2022.CIT22-0317
Abstract
The use of available solar energy for domestic and industrial applications has been hindered due to its intermittent nature. In this context, several thermal energy storage (TES) systems have been implemented in solar radiation harvesting devices to mitigate this problem, to provide functional and efficient alternatives. These use sensible and latent heat to store heat in moments of high radiation and then release it in moments of low radiation, which are usually caused by cloudiness present in the areas where the task is carried out, so its implementation brings advantages such as a large capacity of heat storage in a small volume and an isothermal behavior during the loading and unloading processes of energy storage systems. Due to these advantages, , in recent years, a lot of research work has been carried out to find more efficient phase change materials (PCM) and new system configurations to overcome the problems of low heat transfer between fluid working and phase change material (PCM). The present research aims to experimentally evaluate the impact of the implementation of phase change materials in flat plate solar collectors in the temperature and solar radiation conditions of the department of Córdoba in Colombia, specifically in the city of Monteria, to compare the thermal efficiency between them in transient operation. The parameters that affect the thermal performance of the flat plate solar air heater will be presented with phase change material and without phase change material. These parameters include solar radiation, air temperature difference across the heater, and instantaneous thermal efficiency. With this work, it is expected that the thermal energy storage system that has the phase change material (PCM) will show higher thermal efficiency and also at times when there is little solar radiation to obtain constant temperatures across the collector, ensuring better operation and performance for domestic and industrial applications.
Keywords
Thermal Energy Storage, latent heat, sensible heat, Phase Change Material, flat solar collector, Thermal Efficiency
