Selection of HVAC-AHU system supplier with environmental considerations using Fuzzy EDAS method

Gul Polat*, Hasan Gokberk Bayhan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Buildings, but especially commercial buildings, are mainly responsible for the energy consumption and greenhouse gas emission. Although energy consumption profiles may vary, heating, ventilating and air conditioning (HVAC) systems and lighting are the major energy users in buildings. HVAC systems constitute several parts and the air handling unit (AHU) is one of the most important components as it uses a significant amount of the energy and its initial cost is relatively higher than the other parts. Therefore, selecting the most appropriate HVAC-AHU system and its supplier plays a significant role in improving the energy efficiency of air-conditioned buildings and thereby obtaining a good score from the green certification system according to which the project in question is evaluated. In general, multiple decision makers, who may have different viewpoints and prefer to express their evaluations by linguistic terms, are in charge of selecting the proper HVAC-AHU system and its supplier from several possible alternatives considering numerous compromising and conflicting criteria simultaneously. This paper employs fuzzy Evaluation Based on Distance from Average Solution (Fuzzy EDAS) method for solving the HVAC-AHU system and its supplier selection problem for a green multifunctional shopping centre project located in Moscow. After obtaining the results and determining the optimal solution, sensitivity analysis was carried out to show the stability of the results. The decision makers found the method applicable and practical.

Original languageEnglish
Pages (from-to)1863-1871
Number of pages9
JournalInternational Journal of Construction Management
Issue number10
Publication statusPublished - 2022

Bibliographical note

Publisher Copyright:
© 2020 Informa UK Limited, trading as Taylor & Francis Group.


The studied multifunctional shopping center project was awarded for The Cityscape Award for Emerging Markets by Cityscape Global Project, Best Shopping Center Award given by the Russian Council of Shopping Centers (RCSC), and The Best Facility for Customers Award, Silver Mark by The Review Competition. This case study is selected as it is a complex and prestigious project. Moreover, the construction was undertaken by a large-scale Turkish contractor, which mainly operates in international construction markets, and it was awarded for ‘Green Standards - Gold’ certification level with the credit achievement ratio of 61.32%.

FundersFunder number
Russian Council of Shopping Centers


    • case study
    • Fuzzy evaluation based on distance from average solution (Fuzzy EDAS)
    • green buildings
    • HVAC-AHU systems
    • Multi-attribute-decision-making
    • supplier selection


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