Proposing Alternative Solutions to Enhance Natural Ventilation Rates in Residential Buildings in the Cfa Climate Zone of Rasht

Roya Aeinehvand, Amiraslan Darvish, Abdollah Baghaei Daemei, Shima Barati, Asma Jamali and Vahid Malekpour Ravasjan
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Roya Aeinehvand: School of Architecture Urban Planning Construction Engineering, Politecnico di Milano, 23900 Lecco, Italy
Amiraslan Darvish: Department of Energy and Architectural Engineering, Faculty of Architecture and Urbanism, Imam Khomeini International University, Qazvin, Iran
Abdollah Baghaei Daemei: Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran
Shima Barati: Faculty of Architecture, Karaj Branch, Islamic Azad University, Karaj, Iran
Asma Jamali: Department of Architectural Engineering, Rahbord Shomal University, Rasht, Iran
Vahid Malekpour Ravasjan: Faculty of Architecture, Shabestar Branch, Islamic Azad University, Shabestar, Iran

Sustainability, 2021, vol. 13, issue 2, 1-18

Abstract: Today, renewable resources and the crucial role of passive strategies in energy efficiency in the building sector toward the sustainable development goals are more indispensable than ever. Natural ventilation has traditionally been considered as one of the most fundamental techniques to decrease energy usage by building dwellers and designers. The main purpose of the present study is to enhance the natural ventilation rates in an existing six-story residential building situated in the humid climate of Rasht during the summertime. On this basis, two types of ventilation systems, the Double-Skin Facade Twin Face System (DSF-TFS) and Single-Sided Wind Tower (SSWT), were simulated through DesignBuilder version 4.5. Then, two types of additional ventilation systems were proposed in order to accelerate the airflow, including four-sided as well as multi-opening wind towers. The wind foldable directions were at about 45 degrees (northwest to southeast). The simulation results show that SSWT could have a better performance than the aforementioned systems by about 38%. Therefore, the multi-opening system was able to enhance the ventilation rate by approximately 10% during the summertime.

Keywords: natural ventilation; enhancing airflow rate; residential building; humid climate of Rasht; wind tower (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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