Thermal Comfort Evaluation for Naturally Ventilated Building Applying an Adaptive Model in Different Cities of Iran

Document Type : Research Article

Authors

1 Department of Mechanical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran

2 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

Abstract

In the present article, the performance of natural cross ventilation in providing thermal comfort in a building across six cities of Iran with different climates has been investigated using Energy Plus software. To evaluate the thermal comfort of the building, the adaptive thermal comfort model of ASHRAE Standard 55 has been applied. This model is proposed to evaluate thermal comfort in naturally ventilated buildings without any mechanical ventilation equipment. However, the airflow network model has been considered to simulate natural ventilation through openings. The simulation time for all six cities is considered from 21 March to 22 September. The results show that the achievement of thermal comfort in the building depends mainly on climate. The best and the worst performance has been observed for Tabriz with its cold climate and Bandar Abbas with its hot and humid climate, respectively. Thermal comfort has been provided more than 69% of the time by applying natural cross ventilation in Tabriz for building without insulation.  While this value for Bandar Abbas is estimated at about 12%. Also, results show that the use of insulation with a thickness of 5 cm in the external constructions of the building makes an increase of about 8-12% in the hours of thermal comfort for all cities compared to the building without insulation.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 11
February 2023
Pages 2663-2680

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