دانلود رایگان مقاله بررسی رفتار حرارتی ساختمان های مسکونی سنتی

Abstract

Traditional buildings throughout the globe provide instructive examples of sustainable solutions to building design problems. In recent years, researchers and architects have conducted different studies that represent the principles of Iran’s climate-responsive architecture. Yazd traditional buildings are examples of Iranian architecture that bear characteristics of environmentally friendly buildings. Thermal performance and comfort condition of these buildings in summer have been the matter of interest in recent studies. In this article, summer sections of Yazd traditional homes and their thermal behavior were studied. Yazd is located in hot and arid regions of Iran. EnergyPlus software program was used to investigate the thermal behavior of this house. To validate the developed model, a field study was carried out with lascar electronics data logger. The results reveal that internal temperature of summer sections in all seasons has less fluctuation than the outdoor temperature. Also, weather temperature in underground spaces is closer to the comfort temperature in comparison with spaces near to the ground floor. Therefore, to provide thermal comfort condition in these homes the least amount of non-renewable energy is needed.

6. Conclusions

Climatic based design strategies for buildings can help to create a comfortable living condition and lessen energy consumption in buildings. In this paper, a case study was carried out in order to prove the effectiveness of climatic strategies in Iranian architecture in hot- arid regions of Iran. An appropriate organization of spaces, building form and using suitable material were among the main bioclimatic strategies adopted in Rasulian’s house. These strategies contributed to building thermal performance and consequently obviated energy demand in summer days. Results showed that the zones have less temperature fluctuation in comparison with outdoor air. Also, coastal (zone 3), cellar and other underground spaces (zone 4–6) temperature, in southeast of the building, revolved around comfort condition temperature (21–25 °C) on summer days. On 21st of July which is assumed as the hottest day of the year, the temperature of the zones located underground were in comfort range while the temperature of zones 1 and 5 that were situated in ground floor was above the comfort upper temperature limit. This means that mechanical cooling was not required in extreme hot weather of Yazd city. This study also showed the better thermal condition in underground zones in comparison with other zones. This thermal comfort takes place due to thermal mass properties of the ground. The ground works as a thermal storage, which can control temperature fluctuation. While, the outdoor temperature in this climate has significant fluctuation during day and night. Furthermore, this study can be an inspiration for contemporary buildings’ ecological design in hot regions. It divulges that building orientation, building form, spaces location and also materials have a substantial effect on buildings thermal performance. Thermal performance can be evaluated via energy simulation software programs in design phase by architects and consequently energy performance of the building can be optimized.