Assessing the impact of courtyards in cooling energy demand in buildings

Autor: Álvaro Ruiz-Pardo, Francisco José Sánchez de la Flor, Carmen Galán-Marín, Carlos Rivera-Gómez, Eduardo Diz-Mellado
Přispěvatelé: Máquinas y Motores Térmicos, Universidad de Sevilla. Departamento de Construcciones Arquitectónicas I (ETSA), Universidad de Sevilla. TEP206: Sath Sostenibilidad en Arquitectura, Tecnología y Patrimonio: Materialidad y Sistemas Constructivos, Ministerio de Ciencia, Innovación y Universidades (MICINN). España
Rok vydání: 2021
Předmět:
Zdroj: Journal of Cleaner Production 320 (2021) 128742
RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz
instname
idUS. Depósito de Investigación de la Universidad de Sevilla
Popis: Sustainable passive design strategies can reduce the energy consumption of buildings. In this regard, inner courtyards act as microclimate modifiers that enhance the perception of comfort in the surrounding environment. The present study, through a pooled analysis of experimental and numerical data, intends to assess the beneficial effect that the courtyards have in reducing the energy consumption of the buildings, especially for cooling demand. Accordingly, a new methodology allowing the use of different experimental data for facades and courtyards in software tools for the assessment of the real energy performance of buildings with courtyards is proposed. Besides, a detailed example of the application of the proposed methodology is performed for two scenarios simultaneously: a case study (considering the courtyard effect on the air temperature) and a reference one (without considering this effect). From the results, it is found that the courtyard reduces the demand for cooling in the spaces bordering it. As expected, the magnitude of the cooling demand reduction is correlated to the floor level, is increased at lower floors in the courtyard building. This relative reduction is up to 11%, being, for the case study analyzed, an average reduction of 7%.
This work was supported by the Ministerio de Ciencia, Innovacion y Universidades, National Government of Spain, research projects MTM 2015-64577-C2-2-R, RTI 2018-093521-BC33 and pre-doctoral contract granted to Eduardo Diz Mellado (FPU 18/04783) . The authors gratefully acknowledge AEMET (State Meteorological Agency) for the data supplied
Databáze: OpenAIRE