Construcción y modelación de un módulo didáctico de muro Trombe mediante CFD para fomentar los estudios de la calefacción solar pasiva

Abstract

The project presents the analysis, modeling and design of a didactic module of passive solar heating. A thermodynamic model of a wall is developed. Classical wall Trombe based on the investigation of the transfer of heat by radiation, conduction and convection of its components and using the air as a fluid. We performed a unidimensional energy balance to determine the edge conditions that parameterize the mathematical model. The results of the CFD mathematical model show the floatability and thermocirculation effects of the fluid in addition to the non-slip effect of the fluid on the surfaces and the behavior of the physical variables (density, temperature and air velocity) of the fluid in the heat transference in a passive solar heating system. In addition, we designed and built a didactic module that allows visualizing the physical behavior of the system thanks to the temperature measurement in nine different sections. The module includes the modeling of the passive heating process in time intervals for day / night by means of and the recording of temperature with variable incident radiation. The data provided by the module allow the experimental verification of the dynamical dynamic behavior of the air inside.