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Indoor environmental quality improvement of student dormitories in Tehran, Iran

Nastaran Abdollahzadeh (Department of Design Architecture and Building, University of Technology Sydney, Sydney, Australia)
Azin Velashjerdi Farahani (Department of Mechanical Engineering, Aalto University, Helsinki, Finland)
Kamyar Soleimani (University of Art, Tehran, Islamic Republic of Iran)
Zahra Sadat Zomorodian (Department of Construction, Shahid Behehshti University, Tehran, Islamic Republic of Iran)

International Journal of Building Pathology and Adaptation

ISSN: 2398-4708

Article publication date: 10 May 2022

Issue publication date: 8 March 2023

337

Abstract

Purpose

University students spend a considerable amount of time in dorm rooms, where their environmental condition affects residents' health, well-being, sleep quality and the associated performance. Accordingly, this study aims to run an initial assessment of the environmental quality of two dormitory buildings in Tehran, using field studies and computational simulation, and then provide feasible optimized improvement strategies. The possible correlation between architectural elements and the environmental quality and the impact of proposed solutions on the annual energy use of these spaces are also discussed.

Design/methodology/approach

Field studies and computational simulation.

Findings

Results indicate that applied strategies, including shadings, reflectors, thermal and acoustic insulations, inlet vents and ceiling fans, can boost different aspects of the thermal condition, ventilation, acoustics and visual comfort by 21.77, 55.96, 20.69 and 50.37%, respectively. Accordingly, an acceptable comfort level can simply be achieved at a low cost by installing or replacing a few construction elements in dorm rooms. Nevertheless, a systematic architectural design can offer healthy spaces. For instance, south-facing rooms with large windows provide a higher level of thermal comfort and daylight quality.

Research limitations/implications

This study shows that an acceptable level of IEQ can be achieved in dorm rooms by applying simple retrofit strategies. Moreover, energy consumption of dormitories can be significantly reduced using these solutions. However, the efficiency of the strategies in comparison to their economic aspects should be discussed, and results need to be further validated in real conditions. It is also recommended that a more extensive range of dormitory room typologies be studied in future studies. The results of this study are limited to the study context and so they can only be applied in case studies with similar use and climatic condition.

Originality/value

While many studies have explored the environmental quality of dormitories in different climatic conditions, no significant work has been found in Iran, Tehran investigating feasible optimized improvement strategies responding to all IEQ aspects of acoustics, thermal comfort, air and visual quality. Accordingly, this study makes an initial assessment of IEQ factors in a typical dormitory complex, and then develops practical retrofit strategies to bring the environmental condition of these spaces close to the suggested standards.

Keywords

Acknowledgements

Contribution statement: Each of the authors has substantially contributed to conducting the underlying research. Nastaran Abdollahzadeh was responsible for writing-original draft, software, methodology, data collection and analysis. Azin Velashjerdi Farahani was responsible for writing-original draft, software, methodology, data collection and analysis. Kamyar Soleimani carried out the literature review and was responsible for review and editing-original draft. Dr. Zahra Sadat Zomorodian conceived the study and was responsible for the supervision, methodology, data curation and interpretation.

Citation

Abdollahzadeh, N., Farahani, A.V., Soleimani, K. and Zomorodian, Z.S. (2023), "Indoor environmental quality improvement of student dormitories in Tehran, Iran", International Journal of Building Pathology and Adaptation, Vol. 41 No. 1, pp. 258-278. https://doi.org/10.1108/IJBPA-09-2021-0128

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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