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espanolPara que las viviendas mejoren su comportamiento termico y disminuyan el consumo energetico, producto del uso excesivo de sistemas de climatizacion convencional, las Normas de Eficiencia Energetica de Mexico establecen un factor de Resistencia Termica (“R”) minima de acuerdo con cada region climatica del pais. Este documento presenta las conclusiones del trabajo de investigacion termica del material denominado Isoblock, que consiste en un block de concreto con aislamiento en su interior, que cumple satisfactoriamente con el factor “R” solicitado por la normativa. La investigacion busca demostrar que es necesario que la normativa citada contemple la masa termica de los materiales dentro de los parametros termicos a considerar. Desde ese enfoque, la metodologia consistio en comparar el Isoblock con un block de concreto convencional en dos modulos de iguales caracteristicas durante las temporadas climaticas extremas en Ciudad Juarez, Chihuahua. Por ultimo, se simulo termicamente con el software Design Builder V4.5 y se correlacionaron los resultados para su validacion. A partir de dichos resultados se simulo el modulo de Isoblock con mayor cantidad de masa termica sin variar su espesor, para medir su impacto en la temperatura interior. Los datos obtenidos demuestran que un material con un mismo factor “R” puede alcanzar temperaturas del aire interior mas confortables, en temporadas extremas. EnglishIn order for dwellings to improve their thermal behavior and reduce energy consumption due to the excessive use of conventional air heating and cooling systems, the Mexican Energy Efficiency Standards establish a minimum thermal resistance factor ("R") according to each climatic region of the country. This article presents the conclusions of thermal research on the material known as Isoblock, which: consists of a concrete block with insulation inside and satisfactorily meets the "R" factor required by the regulations. The study seeks to demonstrate the necessity of taking the thermal mass of materials into consideration within the thermal parameters in the aforementioned regulations. From that approach, the methodology consisted in comparing the Isoblock with a conventional concrete block in two modules with the same characteristics during the extreme seasons in Ciudad Juarez, Chihuahua. Lastly, a simulation was carried out using Design Builder V4.5 software and the results were correlated for validation. With these results, the Isoblock module was simulated with a greater amount of thermal mass without varying its thickness, to measure its impact on the interior temperature. The results obtained demonstrate that a material with the same "R" factor can produce more comfortable indoor air temperatures in extreme seasons.

Evaluación térmica del material ISOBLOCK en el clima cálido seco de ciudad. Juárez, México