بهینه‌سازی چندهدفه دو الگوی سایبان متحرک ساختمان اداری برای کاهش مصرف انرژی و افزایش نور روز | ||
| توسعه پایدار محیط جغرافیایی | ||
| مقاله 3، دوره 6، شماره 11، اسفند 1403، صفحه 41-58 اصل مقاله (838.29 K) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.48308/sdge.2024.234834.1187 | ||
| نویسندگان | ||
| سید محمد مهدی میرممتاز1؛ محمد بهاروند* 1؛ نرگس دهقان2؛ تبسم صفی خانی3 | ||
| 1گروه معماری، واحد اصفهان(خوراسگان)، دانشگاه آزاد اسلامی، اصفهان، ایران | ||
| 2گروه معماری، مرکز تحقیقات افقهای نوین در معماری و شهرسازی، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران | ||
| 3مرکز تحقیقات گردشگری معماری و شهرسازی، واحد اصفهان(خوراسگان)، دانشگاه آزاد اسلامی، اصفهان، ایران | ||
| چکیده | ||
| با افزایش جمعیت جهان، نیاز به انرژی بهویژه در ساختمان‌ها افزایش یافته است. الگوهای مناسب برای بهره‌وری انرژی نیازهای ساکنین بناهای معماری بهویژه ساختمان‌های اداری در تأمین پایداری محیط از اهمیت ویژه‌ای برخوردار است. از سویی، نور روز کافی که یکی از مهمترین عوامل تأمینکننده آسایش بصری ساکنین ساختمانهاست، تولید گرما میکند که خود باعث افزایش مصرف انرژی سرمایشی بهویژه در اقلیم گرم و خشک می‌شود. از اینرو، باتوجه به بحران انرژی در ساختمان‌ها، توجهبه معیارهای مؤثر در میزان مصرف انرژی و آسایش بصری ضروری بهنظر می‌رسد. یکیاز روشهای مؤثر در بهینه‌سازی مصرف انرژی ساختمان‌های پایدار، سایبان‌ها هستند و سایبان‌های متحرک به دلیل امکان پویایی و انطباق‌پذیری با نور روز و چرخش خورشید، می‌توانند کاربرد ویژه‌ای داشته باشند. هدف این پژوهش، بهرهگیری از پتانسیل‌های سایبان‌های متحرک در بهینه‌سازی نور روز و بهره‌وری مصرف انرژی بهصورت همزمان است. روش پژوهش از نظر هدف، کاربردی و از تحقیقات کمی است. شیوه انجام کار، روش آزمایشی و شبیه‌سازی بوده است. مدل مرجع بهابعاد 6*6 مترمربع در طبقه سوم ساختمان 4 طبقه، در 3حالت کلی شامل بدون سایبان، حالت سایبان پیرامونی و سایبان جمع‌شونده در تنها یک پنجره در جبهه جنوبی فضای اداری با نسبت 40 درصد، بهتفکیک چهارفصل و درنهایت سالیانه در افزونه لیدیباگتولز مورد شبیه‌سازی و تحلیل قرار گرفت. ازمیان 200 گزینه مورد طراحی، بهترین گزینهها انتخاب شد. نتایج نشانمیدهد با بکارگیری سایبان‌های متحرک انطباقپذیر در نماهای ساختمان‌های اداری شهر اصفهان، میتوان به بهینه‌سازی سطح مفید نور روز بهمیزان بیشاز 20درصد و کاهش مصرف انرژی بیشاز 48 درصد دست یافت. | ||
| کلیدواژه‌ها | ||
| سایبان متحرک پیرامونی؛ ساختمان اداری؛ انرژی؛ روشنایی مفید نور روز؛ اقلیم گرم وخشک؛ شهر اصفهان | ||
| عنوان مقاله [English] | ||
| Multi-objective Optimization of Two Types of Kinetic Shading Devices to Enhance Energy Efficiency and Daylighting | ||
| نویسندگان [English] | ||
| Sayyed Mohammad Mahdi Mirmomtaz1؛ Mohammad Baharvand1؛ Narges Dehghan2؛ Tabassom Safikhani3 | ||
| 1Department of Architecture, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran | ||
| 2Department of Architecture, Advancement in Architecture and Urban Planning Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran | ||
| 3Tourism Architecture and Urban Planning Research Center, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran | ||
| چکیده [English] | ||
| Background and purpose: Architects are increasingly exploring methods to enhance occupants' comfort within buildings by optimizing natural daylight levels while simultaneously improving energy efficiency. The incorporation of dynamic elements in building facades, however, remains relatively uncommon. The inherent dynamic nature of daylight, coupled with the static nature of conventional facades, often hinders the optimal utilization of natural light. Consequently, sustainable architecture strives to develop strategies that maximize the effective use of daylight throughout the day as well as achieve enhanced energy performance. Therefore, this study investigates the application of adaptive shading devices to optimize both daylighting and energy efficiency. Specifically, this is achieved by optimizing daylight utilization while considering the most effective variables influencing the performance of adaptive shading devices on the southern facade of an office building in Isfahan, Iran. Methodology: This study adopts a rationalist approach, employing a quantitative, experimental methodology based on computer simulations to achieve its applied objective. It aims to investigate the causal relationships between independent variables (the design parameters of adaptive shading devices) and dependent variables (daylighting and energy efficiency optimization) within the context of south-facing facades of office buildings in Isfahan's hot and dry climate. The simulations were conducted using a parametric modeling workflow. The initial model was developed in Rhino software using the Grasshopper environment. Daylight and energy performance were simulated using the Ladybug Tools plugin. A genetic algorithm, specifically the NSGA-II algorithm, was employed for multi-objective optimization using the Wallace plugin. The base model, representing a square-shaped office space on the third floor of a building in Isfahan, was analyzed with two types of adaptive shading devices: peripheral and retractable. Each shading type was evaluated across 100 variations, totaling 200 simulations. Building performance indices, namely Useful Daylight Illuminance (UDI) and Energy Use Intensity (EUI), were analyzed both simultaneously and individually for each of the four seasons and annually to identify the optimal configurations. Given the conflicting nature of the two objectives (maximizing UDI and minimizing EUI), a multi-objective optimization approach was employed, allowing for the ranking and comparison of optimal solutions based on their performance across both indicators. Findings and discussion: Based on the defined fitness function, the optimal design alternatives were identified. Regarding the peripheral adaptive shading system, the multi-objective optimization process showed that, across the 100 evaluated configurations, the best performance was achieved with a shading depth of 100 cm during spring, summer, and autumn, and a depth of 29 cm during winter. This configuration resulted in a 20 % increase in UDI and a 21 % reduction in EUI compared to the base case. Similarly, for the retractable adaptive shading system, a consistent depth of 100 cm across all four seasons yielded the most favorable results, leading to a 26 % increase in UDI and a substantial 48 % decrease in EUI. Conclusion: The findings demonstrate that implementing either peripheral or retractable adaptive shading systems in office buildings in Isfahan can effectively optimize both daylighting performance and energy efficiency concurrently, despite the challenges posed by the region's hot and dry climate, particularly the intensely hot summers. | ||
| کلیدواژه‌ها [English] | ||
| Extruded border kinetic shading device, Office building, Energy, Useful daylight illumination, Hot and dry climate, Isfahan city | ||
| مراجع | ||
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