Cold Climate Architecture and Enviroment

Energy audit of the office buildings of the electricity distribution company in the semi-arid and cold climate of Tabriz

Document Type : Original Article

Authors

Tohid Adibi 1
Radman Ebadi 2
Sevda Najafi 2

1 Assistant Professor, Department of Mechanical Engineering, Faculty of Technical and Engineering, University of Bonab

2 Department of Mechanical Engineering, Faculty of Technical and Engineering, University of Bonab

Abstract
The increase in energy consumption in office buildings, environmental consequences, and rising energy costs have made energy consumption optimization a necessity. This study was conducted to analyze the performance of various office buildings in the semi-arid and cold climate of Tabriz city, based on the national standard 14254 (National Energy Standard). This study examined energy consumption (electricity and gas) in 22 office buildings. The total equivalent energy consumption of the buildings was calculated using data on the amount of gas and electricity consumed by the building, and compared with the indicators of the national standard of Iran to determine the energy label of each building. In some office buildings, server rooms are one of the most important energy consumers throughout the year due to the need for permanent cooling. Therefore, in this study, the status of server rooms was examined separately. The results showed that the energy consumption ratio in these buildings varied between 2.94 and 14.8. The average energy consumption ratio in these buildings was also obtained as 5.81. Also, short-term and long-term solutions for reducing energy consumption in these buildings are presented in this article. The findings of this research can provide a model for optimizing energy consumption in other similar buildings in cold and semi-arid climates or other climates.

Keywords

Energy audit
server room
optimization
energy label
solar cooling
sustainable architecture
References
 
1.         Tohid Adibi, Omid Adibi, and A. Amrikachi, Investigation on the possibility of substituting compression cooling cycle with a solar absorption cooling cycle in tropical regions of Iran. European Journal of Electrical Engineering, 2017. 19(1): p. 7-17.
2.         Hafez, F.S., et al., Energy Efficiency in Sustainable Buildings: A Systematic Review with Taxonomy, Challenges, Motivations, Methodological Aspects, Recommendations, and Pathways for Future Research. Energy Strategy Reviews, 2023. 45: p. 101013.
3.         Su, Y. and X. Lu, Energy Saving Research on Temperature Control in Data Center Server Rooms. Journal of Physics: Conference Series, 2024. 2800(1): p. 012033.
4.         He, W., et al., Optimal thermal management of server cooling system based cooling tower under different ambient temperatures. Applied thermal engineering, 2022. 207: p. 118176.
5.         Peel, M.C., B.L. Finlayson, and T.A. McMahon, Updated world map of the Köppen-Geiger climate classification. Hydrol. Earth Syst. Sci., 2007. 11(5): p. 1633-1644.
6.         Beck, H.E., et al., Present and future Köppen-Geiger climate classification maps at 1-km resolution. Scientific Data, 2018. 5(1): p. 180214.
7.         Ghazi, B., et al., Projection of climate change impact on main climate variables and assessment of the future of Köppen–Geiger climate classification in Iran. Acta Geophysica, 2025. 73(2): p. 2017-2027.
8.         Chen, L., Wu, X., & Zhao, Y. (2020). Thermal insulation strategies for mountain buildings. Energy and Buildings, 210, 112345.
9.         Kumar, R., & Singh, J. (2021). Evaporative cooling performance in arid mountain climates. Journal of Building Engineering, 38, 102123.
10.       Lopez, M., & Garcia, J. (2022). Impact of double-glazed windows on energy efficiency. Building and Environment, 198, 107890.
11.       Zhang, Q., Liu, H., & Chen, W. (2023). Solar energy utilization in mountainous regions. Renewable Energy, 178, 113456.
12.       Smith, P., & Patel, V. (2024). Natural ventilation for energy savings in server rooms. Sustainable Cities and Society, 85, 104567.
13.       Wang, J., & Li, T. (2025). Solar-powered absorption chillers for sustainable cooling. Applied Thermal Engineering, 230, 120123.
14.       Rodriguez, A., Martinez, P., & Gomez, L. (2025). Smart sensor applications in energy auditing. Energy Conversion and Management, 290, 116789.
15.       Ali, M., Hassan, R., & Khan, F. (2025). Liquid cooling systems for high-efficiency server rooms. Journal of Cleaner Production, 420, 135678.
16.       Sidebotham, G., Psychrometrics, in An Inductive Approach to Engineering Thermodynamics, G. Sidebotham, Editor. 2022, Springer International Publishing: Cham. p. 637-712.
17.       Adibi, T., Evaluation of using solar ammonia absorption cooling system for major cities of the Middle East. International Journal of Heat and Technology, 2018. 36: p. 840-846.
18.       Liu, L., et al., Energetic, economic and environmental study of cooling capacity for absorption subsystem in solar absorption-subcooled compression hybrid cooling system based on data of entire working period. Energy Conversion and Management, 2018. 167: p. 165-175.
19.        ساختمان, د.م.م.ی., مقررات ملّی ساختمان ایران مبحث نوزدهم صرفه جویی در مصرف انرژی. 1389.