Improvement of Natural Ventilation in Corridor Spaces of Ahvaz Office Buildings through Intervention in Architecture

Document Type : Original Article

Authors

1 Assistant Professor, School of Architecture and Urbanism, Shahid Rajaee Teacher Training University (SRTTU), Tehran, Iran

2 Institute for Higher Education ACECR Khouzestan, Ahvaz ,Iran

3 Department of Aeronautical Science and Technology, Aerospace Research Institute, Tehran, Iran

4 Science and Research University of Khouzestan, Ahvaz , Iran

Abstract
One of the most important problems of office buildings in hot and humid cities like Ahvaz is the lack of effective ventilation of closed corridor spaces. Due to the low traffic and the reduction of energy costs, the use of air conditioning systems in these corridors is not of much concern to their owners. The main goal of this research is to improve the ventilation quality in the corridor spaces of Ahvaz office buildings, which is possible through modifying the architectural elements and position of blowers and suckers. The current research is a kind of interdisciplinary research method: it is a hybrid and innovative method and involves the strategies of experimental research, simulation and case study. In this way, first an experimental study was conducted on the statistical population of the research (corridor spaces of Ahvaz office buildings) and after selecting case study, observations and periodical experimental tests were occured, interventions in architecture and research variables were carried out with the simulation method. In this research, CFD method was used to perform simulations and analysis, and Gambit preprocessor and Fluent software were used (after proving validity and reliability). The results showed that the use of ceiling fans and the change in the dimensions and shape of the corridors, according to the results of this research and the prediction of the back-to-the-wind suction, effectively improved the indoor air flow pattern and by reducing the age of stagnant air and establishing a constant air flow, Provides effective ventilation.

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۹- مراجع
 [1] a. Raja, o. Raja, usage of CFD method in architecture, in: 5th international congress of civil, architecture, urban development, Tehran, Iran, 2017. (in Persian)
[2] D. F. Burton, Industrial Ventilation Work Book, Salt Lake City: DJBA Inc, 1997.
[3] R. J. De Dear, G. S. Brager, Thermal comfort in naturally ventilated buildings: revisions to ASHRAE Standard 55, Energy and buildings, Vol. 34, No. 6, pp. 549-561, 2002.
[4] B. Givoni, Climate Considerations in Building and Urban Design, John Wiley & Sons, 1998.
[5] Z. Q. Zhai, I.D. Metzger, Taguchi-Method-Based CFD Study and Optimisation of Personalised Ventilation Systems, Indoor and Built Environment, Vol. 21, No. 5, pp. 690-702, 2012.
[6] Guoa Weihong, b. Xiao Liua, b. Xu Yuan, Study on Natural Ventilation Design Optimization Based on CFD Simulation for Green Buildings, 9th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC) , the 3rd International Conference on Building Energy and Environment (COBEE) Procedia Engineering, No. 121, pp. 573-581, 2015.
[7] M. A. Hassana, N.M. Guirguisa, M.R. Shaalanb, K.M. El-Shazlyc Desalination, Investigation of effects of window combinations on ventilation characteristics for thermal comfort in buildings, No. 209, pp. 251-260, 2007.
[8] Liu Jiying, Zhu Shengwei, Kim Moon Keun, Srebric Jelena, A Review of CFD Analysis Methods for Personalized Ventilation (PV) in Indoor Built Environments, 2019.
[9] Yang An-Shik, Cheng Chiang-Ho, Wu Jen-Hao, Juan Yu-Hsuan, CFD Simulations to Examine Natural Ventilation of a Work Area in a Public Building, World Academy of Science, Engineering and Technology International Journal of Mechanical and Mechatronics Engineering, Vol.8, No.7, 2014.
[10]  Muhsin Fakhriah, Mohammad Yusoff  Wardah Fatimah, Mohamed Mohd Farid, Sapian Abdul Razak, The Effects of Void on Natural Ventilation Performance in Multi-Storey Housing, Buildings, Vol. 6, No. 3, pp. 35, 2016.
[11]  Wang Bing, Dogan Timur, Pal Debashree, Reinhart Christoph, SIMULATING NATURALLY VENTILATED BUILDINGS WITH DETAILED CFDBASED WIND PRESSURE DATABASE, Fifth National Conference of IBPSA-USA, Madison, Wisconsin, pp.1-3, 2012.
[12]  Driss Slah, Driss Zied , Kammoun Imen Kallel, Elsevier: Energy and Buildings, Vol. 119, pp. 28-40, 2016.
[13]  S. Torno, J. Toraño, J. Velasco, Study of ventilation reversion of airflow in mining roadways and tunnels by CFD and experimental methods, WIT Transactions on Engineering Sciences, Vol. 69, pp. 1743-3533, 2010.
[14]  Raji Babak, J. Tenpierik Martin, Bokel Regina, Dobbelsteen Andy van den, Natural summer ventilation strategies for energy-saving in high-rise buildings: a case study in the Netherlands, International Journal of Ventilation, Vol. 19,No. 1, pp. 25-48, 2020.
[15]  Kim Hyeong-Ill, Study on Integrated Design Workflow for Natural Ventilated Tropical Office Building Using CFD, Archit Eng Tech, Vol. 170, No. 5, pp. 4172-4177, 2016.
[16]  Wang Fulin, Chen Zheliang, Chen Chen, Liu Yansheng, Natural Ventilation Design in a Large Factory Building Using Simulation, 14th Conference of International Building Performance Simulation Association, Hyderabad, India, No. 14, pp. 7-9, 2015.
[17]  D.Prakash, P.Ravikumar, Analysis of thermal comfort and indoor air flow characteristics for a residential building room under generalized window opening position at the adjacent walls, 2019.
[18]  R Widiastuti, M I Hasan, C N Bramiana, P U Pramesti, CFD Simulation on the Natural Ventilation and Building Thermal Performance, Earth and Environmental Science, pp. 448, 2020.
[19] Omid Rahaei, Hamid Reza Azemati, Improving the Quality of Natural Ventilation in Classrooms of Mazandaran Province Based on the Position of the Openings Using CFD Method. IRANIAN ARCHITECTURE AND URBANISM, Vol. 11 , No. 19, pp. 57-71, 2020. (in Persian)
[20]   J. I. Peren, T. van Hooff, B. C. C. Leite, B. Blocken, CFD analysis of cross-ventilation of a generic isolated building with asymmetric opening positions: Impact of roof angle and opening location. Building and Environment, Vol. 85, No. 2, pp. 263-276, 2020.
[21]  O. Rahaei, S. Abi, A. Shams Taleghani, Uniformization of the Ventilation Process in the Internal Exhibition Halls of
the Shush Antiquities Museum With Limited Interventions, Scientific Journal of Fluid Mechanics and Aerodynamics, Vol. 11, No. 1, Spring and Summer 2022, pp.41-55. (in Persian)
[22]  J. Park, , G. H. Rhee, Comparison of volume flow rate and volume-averaged local mean age of air for evaluating ventilation performance in natural ventilation, Mech Sci Technol,Vol. 31, pp. 5801-5812, 2017.
[23]  wu Wentao, wang Bing, Malkawi Ali, Yoon Nari, Sehovic Zlatan, Yan Bin, A Method toward Real-Time CFD Modeling for Natural Ventilation, Harvard Center for Green Buildings and Cities, Harvard University, Cambridge, 2018.
[24]  M. Hazbaei, natural ventilation in Shavadans of Dezoul with CFD modeling, Bagh-e-nazar, Vol. 11, No. 30, 2014. (in Persian)
[25]  Q. Chen, Ventilation performance prediction for buildings: a method overview and recent applications, Build Environ, Vol. 44, No. 4, pp. 848-858, 2009.
[26]  Deza Baskar, Mirka Ganapathy, subr amanian, He Shan, Ulrike Passe, High Fidelity CFD Modeling of Natural Ventilation in a Solar House, Mechanical Engineering Conference Presentations, Papers, and Proceedings, 2015.
[27]  g. Memarian, wind behavior analyses in natural ventilation of vernacular houses of Ghal’e-no with CFD method, Maskan-va-mohit-roosta, Vol. 36, No. 157, pp. 21-36, 2017. (in Persian)
[28]  G. Blake, E. Schlichting, U. Zimmermann, Water recharge in a soil with shrinkage cracks, Soil Science Society of America Journal, Vol. 37, No. 5, pp.669-672, 1973.
[29]  Q. Chen, Comparison of different k-ε models for indoor air flow computations, Numerical Heat Transfer, Part B Fundamentals, Vol. 28, No. 3, pp.353-369, 1995.
[30]  H. Versteeg, W.Malalasekera, An introduction to computational fluid dynamics, Finite Volume Method, Essex, Longman Scientific & Technical, 1995.
[31]  H.Schlichting, E. Truckenbrodt, Aerodynamics of the Airplane, McGraw-Hill Companies, 1979.
[32]  W.Rudy, The universities of Europe, Fairleigh Dickinson University Press, London, Cranbury,pp.1100-1914, 1984.
[33]  D. C. Wilcox, Turbulence modeling for CFD, DCW industries La Canada, CA, 1998.
[34] Alan T. McDonald, Philip J. Pritchard, Robet W. Fox,  Introduction to Fluid Mechanics,Vol. 9, JOHN WILEY & SONS INC,2015. (in Persian)
[35] Tablada, Abel, Bert Blocken, Jan Carmeliet, Frank De Troyer, Han Verschure, The influence of courtyard geometry on air flow and thermal comfort: CFD and thermal comfort simulations, In Proceedings of 22nd conference on passive and low energy architecture, Vol. 1, pp. 75-80, 2005.
 
 

  • Receive Date 03 December 2022
  • Revise Date 29 January 2023
  • Accept Date 03 May 2023