Comparison of the Fixed External Sun Shading Devices Performance in order to Daylight Control
(Case Study: Southern Facade in Yazd Climate)
Subject Areas :
Renewable Energy
Tahereh Nasr
1
,
Zahra Yarmahmoodi
2
1 - Associate Professor, Department of Architecture, Faculty of Art and Architecture, Shiraz Branch, Islamic Azad University, Shiraz, Iran. * (Corresponding Author)
2 - Ph.D. Candidate, Department of Architecture, Shiraz Branch, Islamic Azad University, Shiraz, Iran.
Received: 2021-06-19
Accepted : 2021-10-26
Published : 2022-07-23
Keywords:
Typology,
Yazd Climate,
Daylight Simulation,
Radiation Analysis,
Fixed Sun Shading Devices,
Abstract :
Background and Objective: With the advancement of technology, there has been an increase in energy consumption. For example, in hot and dry climates, where the amount of heat and sunlight is high during the day, it causes too much sunlight to enter the interior and increases the temperature, which increases the consumption of cooling energy. Fixed sun shading in this climate can greatly reduce cooling energy consumption. Therefore, the purpose of this study is to identify different types of fixed external sun shading devices and finally select the best of them in terms of performance to optimize energy consumption in hot and dry climates.Material and Methodology: The research method is quantitative and simulation-modeling. The data collection tool for the theoretical foundations section is library and documentary. In this way, the fixed sun shading devices are modeled in Rhino 6 software and Grasshopper plugin. After that, the climate of Yazd, which is hot and dry, has been selected for energy analysis by the Ladybug Tools 1.1.0 in a Grasshopper environment in order to achieve a suitable type of fixed external sun shading devices in hot and dry climates. Thermal analyzes have been performed in Ecotect software. Findings: The results of the present research show that the geometric, eggcrate and horizontal shading devices have the best performance in terms of optimizing energy consumption. Discussion and Conclusion: Therefore, considering that geometric shading devices are very similar to the shading devices in traditional Iranian architecture, it can be concluded that proper innovation by preserving the principles and avoiding blind imitation of the past can be desirable and economical solutions to the problems of the present age.
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_||_
N. Noroozian, “Localization pattern for assessment of energy efficiency in buildings in Tehran,” Naqshejahan-Basic Stud. New Technol. Archit. Plan., vol. 6, no. 3, pp. 63–74, 2016. (In Persion)
T. Nasr, Z. Yarmahmoodi, and S. M. Ahmadi, “The Effect of Kinetic Shell’s Geometry on Energy Efficiency Optimization Inspired by Kinetic Algorithm of Mimosa pudic,” Naqshejahan-Basic Stud. New Technol. Archit. Plan., vol. 10, no. 3, pp. 219–230, 2020. (In Persion)
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S. Samadi, E. Noorzai, L. O. Beltrán, and S. Abbasi, “A computational approach for achieving optimum daylight inside buildings through automated kinetic shading systems,” Front. Archit. Res., vol. 9, no. 2, pp. 335–349, 2020.
H. Sghiouri, M. Charai, A. Mezrhab, and M. Karkri, “Comparison of passive cooling techniques in reducing overheating of clay-straw building in semi-arid climate,” in Building Simulation, 2020, vol. 13, no. 1, pp. 65–88.
M. Rasuli, Y. Shahbazi, and M. Matini, “Horizontal and Vertical Movable Drop-Down Shades Performance in Double Skin Facade of Office Buildings; Evaluation and Parametric Simulation,” Naqshejahan-Basic Stud. New Technol. Archit. Plan., vol. 9, no. 2, pp. 135–144, 2019. (In Persion)
X. Shi, T. Abel, and L. Wang, “Influence of two motion types on solar transmittance and daylight performance of dynamic façades,” Sol. Energy, vol. 201, pp. 561–580, 2020.
M. Haghshenas, M. R. Bemanian, and Z. Ghiabaklou, “Analysis the Criteria of Solar Trasmittance from Stained Glasses Used in Some of the Orosis from Safavid Dynasty,” J. Color Sci. Technol., vol. 10, no. 1, pp. 55–64, 2016, [Online]. Available: http://jcst.icrc.ac.ir/article_76183.html.
M. Haghshenas and Z. Ghiabaklou, “Investigation of tinted glazing’s effect in transmission of daylight and energy in the visible spectrum,” J. Color Sci. Technol., vol. 2, no. 4, p. 213û220, 2009.
A. Mohammadi and S. M. H. Ayatollahi, “Designing a Model Shading Device for Booshehr City,” Soffeh, vol. 21, no. 3, pp. 45–56, 2012, [Online]. Available: https://soffeh.sbu.ac.ir/article_100364.html. (In Persion)
M. A. Fadaii Ardestani, H. Nasseri Mobaaraki, M. R. Ayatollahi, and Z. S. Zomorrodian, “The Assessment of Daylight and Glare in Classrooms Using Dynamic Indicators; the Case of SBU Faculty of Architecture and Urban Planning,” Soffeh, vol. 28, no. 4, pp. 25–40, 2018, [Online]. Available: https://soffeh.sbu.ac.ir/article_100759.html. (In Persion)
M. Asghari, Z. Poolaei, and H. Yazdani, “Evaluation of Window overhang and External wall thermal Conductivity reduction Effect On office Cooling load in 3 Climates Hot and Humidity, Mild and Cold,” J. Mech. Eng., vol. 48, no. 4, pp. 331–335, 2019, [Online]. Available: https://tumechj.tabrizu.ac.ir/article_8430.html.
A. Heidari, M. Taghipour, and Z. Yarmahmoodi, “The Effect of Fixed External Shading Devices on Daylighting and Thermal Comfort in Residential Building,” J. Daylighting, vol. 8, no. 2, pp. 165–180, 2021.
A. Fathalian and H. Kargarsharif, “Investigating the Effect of Different Energy Saving Strategies on Energy Rating of Building by Design Builder Software (Case Study: Office Building),” J. Environ. Sci. Technol., vol. 22, no. 7, pp. 199–214, 2020, doi: 10.22034/jest.2019.42973.4590. (In Persion)
L. G. Valladares-Rendón and S.-L. Lo, “Passive shading strategies to reduce outdoor insolation and indoor cooling loads by using overhang devices on a building,” in Building Simulation, 2014, vol. 7, no. 6, pp. 671–681.
A. Aldawoud, “Conventional fixed shading devices in comparison to an electrochromic glazing system in hot, dry climate,” Energy Build., vol. 59, pp. 104–110, 2013.
P. M. Esquivias, C. M. Munoz, I. Acosta, D. Moreno, and J. Navarro, “Climate-based daylight analysis of fixed shading devices in an open-plan office,” Light. Res. Technol., vol. 48, no. 2, pp. 205–220, 2016.
L. G. Valladares-Rendón, G. Schmid, and S.-L. Lo, “Review on energy savings by solar control techniques and optimal building orientation for the strategic placement of façade shading systems,” Energy Build., vol. 140, pp. 458–479, 2017.
G. Kim, H. S. Lim, T. S. Lim, L. Schaefer, and J. T. Kim, “Comparative advantage of an exterior shading device in thermal performance for residential buildings,” Energy Build., vol. 46, pp. 105–111, 2012.
F. D. Miran and H. K. Abdullah, “Evaluation of the Optimal Solar Shading Devices for Enhancing Daylight Performance of School Building (A case study semi-arid Clim. city),” ZANCO J. Pure Appl. Sci, vol. 28, pp. 580–598, 2016.
F. Zare and S. Heidari, “Architectural Design Based on Daylight Utilization- An Approach for Library Design in Tehran,” Hoviatshahr, vol. 9, no. 24, pp. 55–64, 2016, [Online]. Available: http://hoviatshahr.srbiau.ac.ir/article_8787.html. (In Persion)
A. Rezaei, H. Lakaei, A. H. Bari, and T. A. Mekaeili, “Construction of sustainable environment and landscape on the borderline-parks of Yazd province,” Journal of Environmental Science and Technology, vol. 17, no. 3, pp. 159-169, 2015. (In Persion)
M. Ghodsi, K. Daneshjoo, and S. M. Mofidi Shemirani, “Impact of geometric indicators on residential thermal behavior in hot arid climate (case study: Yazd),” Naqshejahan-Basic Stud. New Technol. Archit. Plan., vol. 8, no. 3, pp. 143–148, 2018. (In Persion)
H. S. Avazalipour and Y. Taghizadeh, “Designing a native pattern in arid climate to reduce energy consumption in housing sector (Case study: Yazd),” Journal of Environmental Science and Technology, vol. 21, no. 3, pp. 227-236, 1970, doi: 10.22034/jest.2019.14554. (In Persion)
“Yazd, Iran - Detailed climate information and monthly weather forecast | Weather Atlas.” https://www.weather-atlas.com/en/iran/yazd-climate#daylight_sunshine (accessed Jul. 12, 2020).
S. Hasanpourloumer and S. Toofan, “Visual and Structural Features of Sash Windows in Masouleh Historical City,” Islam. Art Stud., vol. 15, no. 34, pp. 72–92, 2019, doi: 10.22034/ias.2019.93927. (In Persion)
S. N. Hosseini, S. M. Hosseini, and M. HeiraniPour, “The Role of Orosi’s Islamic Geometric Patterns in the Building Façade Design for Improving Occupants’ Daylight Performance,” J. Daylighting, vol. 7, no. 2, pp. 201–221, 2020.
A. Ganji Kheybari, D. Diba, M. Mahdavinejad, and A. Shahcheraghi, “Algorithmic Design of ‘Palekane’ in order to Increase Efficiency of Daylight in Buildings,” Arman. Archit. Urban Dev., vol. 8, pp. 35–52, 2015, [Online] Available: http://www.armanshahrjournal.com/article_39305.html. (In Persion)
M. Mahdavinejad and A. Kia, “Contemporarization of traditional facade skins (lattice) in Iranian architecture for optimization of daylight and energy. Case study: Tehran office buildings,” AHDC, vol. 7, no. 9, pp. 69–82, 2019, [Online]. Available: http://smb.yazd.ac.ir/article_1655.html.
H.-J. Kim, C.-S. Yang, and H. J. Moon, “A Study on Multi-Objective Parametric Design Tool for Surround-Type Movable Shading Device,” Sustainability, vol. 11, no. 24, p. 7096, 2019.
