Department of Architecture, Advancement in Architecture and Urban Planning Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
10.48308/soffeh.2025.225454.1120
Abstract
In Iran, energy consumption in office and government buildings is higher than in other buildings, and the envelope of these buildings, as the first layer in dealing with environmental conditions, is critical to energy efficiency. In addition to providing thermal comfort, the building envelope can reduce energy consumption for heating, cooling, and ventilation. The greatest strategy for a building's envelope is a ventilated façade. A layer of air is placed between the outer layer of the façade and the building's wall, and this gap is naturally or mechanically ventilated. The term "open joint ventilated façade" refers to a type of ventilated facade in which the outer layer is made up of spaced slabs (open joint). Because of the solar chimney effect, these joints allow outside air to enter the chamber and provide natural ventilation. The purpose of this study is to investigate the thermal behavior and air flow in open joint ventilated facades on the southern front of an office building in the hot and dry climates of Isfahan, based on global research on this facade, which is mostly done in Spain and the existence of research weaknesses in Iran. The surface of this type of façade compared to a traditional one, and the thickness of the air layer between the two layers, are independent variables for this purpose. Furthermore, this type of facade was investigated in three different height modes (ground floor, fourth and eighth floor). During the summer and winter solstices, the simulation in this paper was run using the computational fluid dynamics approach using Fluent software. In comparison to other modes, the results showed that 60 percent and 80 percent of the surfaces of open joint ventilated facades on the fourth story with a 6 cm air layer thickness have the best performance in the southern front.
Malekipour, N. and Dehghan, N. (2025). Investigating air flow and heat transfer in an open joint ventilated facade (case study: office building in Isfahan city). Soffeh, (), -. doi: 10.48308/soffeh.2025.225454.1120
MLA
Malekipour, N. , and Dehghan, N. . "Investigating air flow and heat transfer in an open joint ventilated facade (case study: office building in Isfahan city)", Soffeh, , , 2025, -. doi: 10.48308/soffeh.2025.225454.1120
HARVARD
Malekipour, N., Dehghan, N. (2025). 'Investigating air flow and heat transfer in an open joint ventilated facade (case study: office building in Isfahan city)', Soffeh, (), pp. -. doi: 10.48308/soffeh.2025.225454.1120
CHICAGO
N. Malekipour and N. Dehghan, "Investigating air flow and heat transfer in an open joint ventilated facade (case study: office building in Isfahan city)," Soffeh, (2025): -, doi: 10.48308/soffeh.2025.225454.1120
VANCOUVER
Malekipour, N., Dehghan, N. Investigating air flow and heat transfer in an open joint ventilated facade (case study: office building in Isfahan city). Soffeh, 2025; (): -. doi: 10.48308/soffeh.2025.225454.1120
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