Calibration of a computer simulation with a test cell composed with a wall thermosyphons

Energy consumption is increasing exponentially. Studies indicate that the construction sector is one of the main contributors to such demands, and a significant portion of this consumption is dedicated to maintaining internal thermal comfort. Research indicates that irreversible global warming is underway until the end of this century. This emphasizes the dependence on mechanical climate control systems. In this context, passive cooling methods should be investigated. Thus, to broaden the investigation of these systems, the aim of this work is to calibrate a computational model, developed in the EnergyPlus software, with a test cell composed of a wall thermosyphon for internal cooling. The results from the first hour of IC and the last hour of Transient Condition were the ones that deviated the most from the calculated root mean square error limit for all simulated tests. These differences may be influenced by various factors, such as air infiltration into the test cell, system startup time, or even the thermophysical values of the materials used in the test cell envelope. In general, the data obtained in EnergyPlus were considered statistically equivalent to the experimental samples collected in the test cell, indicating, even with the use of simplifications, a coherent modelling with the experimental study.