Numerical and Analytical Study of the Effect of Different Architectural Geometries on the Stack Effect and Energy Consumption in Tall Buildings

Document Type : Original Article

Authors
Saeed Vahidifar 1
Sajad Kalidari 2
1 Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran
2 Department of mechanical engineering- sajad university- mashhad-iran
10.22034/stme.2023.376737.1025
Abstract
 Due to the importance of natural phenomena in human life, investigation and study of these phenomena has always been of interest. The aim of this study is to investigate the stack effect that occurs in all buildings, although it is more noticeable in high-rise buildings. Due to the importance of this phenomenon in the energy consumption of high-rise buildings, in this research, these types of buildings have been studied. Due to the importance of the influence of the cross-section of buildings on the occurrence and behavior of this phenomenon, therefore, elliptical, triangular and rectangular cross-sections with the same surface have been examined and by comparing the results, different cross-sections have been evaluated and compared. The simulation of this phenomenon has been done in Fluent software and the analytical results have been compared, which shows a good match. The results show that the elliptical cross-section, according to its geometry and aerodynamic conditions, has the best performance in terms of the amount of additional pressure required to create positive pressure and energy consumption.
Keywords
Stack effect
Aerodynamic of building
Optimization of energy
Cross section of building
Subjects
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  • Receive Date 15 December 2022
  • Revise Date 06 February 2023
  • Accept Date 10 June 2023
  • First Publish Date 10 June 2023
  • Publish Date 22 June 2023