Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
THERMAL PERFORMANCE AND ECONOMIC EVALUATION OF SMALL OFFICE INTEGRATED WITH PCM IN A SOUTHERN BRAZILIAN CLIMATE
Submission Author:
Rafael Rank Storm , PR , Brazil
Co-Authors:
Rafael Rank Storm, Julio Cesar Dainezi de Oliveira
Presenter: Rafael Rank Storm
doi://10.26678/ABCM.ENCIT2022.CIT22-0275
Abstract
The edification sector is responsible for 40% of the world’s energy demand. In order to decrease this energy demand, this paper studied the influence of adding phase changing materials (PCM) in a typical Brazilian building and to perform an economic viability study for its large scale application in a southern Brazilian climate. These materials are characterized by storing thermal energy in the form of latent heat during hot periods, therefore increasing the building’s overall thermal inertia and decreasing the energy demand for thermal acclimatization. Numerical simulations were performed in the software Energy Plus with a standard edification developed by the U.S Department of Energy with changes in its’ building envelope in order to adapt the model to the Brazilian conditions. One material with six different phase change temperatures of 21°C through 26°C are compared with the base scenario without PCM in order to determine the most suitable for the location. The simulation’s results are also used to perform an economical analysis, determining if it is economically feasible to use phase changing materials in the studied conditions. The results showed a 16,26% decrease in HVAC energy consumption and a payback period of approximately 31,7 years
Keywords
PCM, energy efficiency, Economic analysis, Phase Changing Materials, energy simulation
