The increasing concern expressed by building designers in Panama, due to new building-energy regulations, regarding sustainable development goals and energy efficiency, is leading architects to reanalyse their design strategies and evaluate the vernacular architecture. The main implications of the hot-humid climate characteristics stipulate that the need for cooling of indoor environments drives buildings’ design and settlements. This work aims to assess the use of bioclimatic architecture strategies in three existing building typologies design in Panama, in terms of thermal comfort performance. The approach adopted here is to compare and analyse the vernacular architecture with current architecture. Besides, to evaluate bioclimatic architecture strategies based on recent investigations and the guidelines proposed by Givony, Olgyay, among others. A numerical assessment was performed on the dynamic simulation software DesignBuilder, where the building’s passive strategies are evaluated in terms of operative temperature, relative humidity (rH), PMV, PPD, and discomfort hours (DH). All three houses, the HVA, HCA, and HRES were tested in three different locations within Panama City. Results showed that the strategies in HVA perform best for reducing rH levels, but the HRES performs best in overall thermal comfort performance, apart yet from the high rH levels encountered.
La característica principal de los climas tropicales es la alta humedad y altas temperaturas, lo cual hace necesario evaluar las alternativas para mejorar el rendimiento térmico y eficiencia energética, usando estrategias bioclimáticas pasivas en las edificaciones. Por esta razón, el trabajo de investigación busca evaluar las estrategias bioclimáticas de un edificio existente en el Campus Víctor Levi Sasso de la Universidad Tecnológica de Panamá y proponer recomendaciones. Se utilizaron herramientas como la carta solar y la rosa de los vientos, que permiten determinar la incidencia solar en las diferentes fachadas del edificio y el comportamiento de los vientos para aprovechar al máximo la ventilación natural. Los resultados llevaron a proponer un nuevo edificio (denominado EO), en donde las estrategias bioclimáticas aplicadas fueron la orientación (orientado alargado en el eje Este-Oeste) y el sombreamiento como la aplicación de vidrio de doble acristalamiento con baja emisividad, aleros y cortinas para el edificio EO. Por último, se realizó la comparación de ambos edificios por medio de su rendimiento térmico, en términos de las temperaturas de aire y superficies interiores y exteriores de los edificios, así como la humedad relativa, el porcentaje predicho de insatisfechos (PPD) y el valor medio previsto (VMP) de Fanger.
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