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Sustainability 2017, 9(11), 1950; doi:10.3390/su9111950

Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City

1
Faculty of Architecture and Urbanism, Art University of Isfahan, Isfahan 8146834615, Iran
2
Faculty of Architecture and Urbanism, Shahid Beheshti University, Tehran 1983969411, Iran
*
Author to whom correspondence should be addressed.
Received: 26 August 2017 / Revised: 1 October 2017 / Accepted: 21 October 2017 / Published: 26 October 2017
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Abstract

This study aims to use the vernacular climatic strategies (VCS) of traditional dwellings in Bushehr, in the common residential buildings of this southern Iranian city (which is characterized by its hot and humid climate), and provide answers to the following question: What effects do VCS have in terms of energy consumption in these buildings? This study has been conducted at three levels. At the first level, three context-based climatic solutions including shading, natural ventilation, and insulation of external walls and roofs were identified and selected based on bibliographic study. At the second level, a case study reflecting the current typology of common residential buildings in Bushehr city was selected. A combination of the mentioned climatic solutions was used in the baseline case to create a developed model. Based on the space layout of the developed model and some design criteria, a series of proposed models was also created and modeled. The selected case study building was also used to establish a local weather station at a height of 12 m based on the roof, collecting local climate data which were then used for simulation to improve simulation accuracy. Finally, all models were simulated with the use of Design Builder software under natural ventilation conditions during moderate climatic periods of the year while split air-conditioning systems were used during hot and humid periods. The results showed reductions of 16% in energy consumption and 22% in CO2 emissions for the developed model, and reductions of 24–26% in energy consumption and 32–34% in CO2 emissions for the proposed models, as compared with the baseline model. Furthermore, all proposed models achieved lower annual energy consumption when compared with a selection of international sustainable low energy standards and domestic energy performance references for the Middle East region. Further studies are also recommended, and there is potential for combining VCS with other solutions such as on-site renewable energies. View Full-Text
Keywords: residential buildings; vernacular climatic strategies; hot and humid climate; energy consumption residential buildings; vernacular climatic strategies; hot and humid climate; energy consumption
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Mohammadi, A.; Saghafi, M.R.; Tahbaz, M.; Nasrollahi, F. Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City. Sustainability 2017, 9, 1950.

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