بررسی تأثیر استفاده از نماهای دوپوسته سبز بر مصرف انرژی ساختمانهای بلند مرتبه در شرایط اقلیمی تهران

نوع مقاله: مقاله مکانیک

نویسندگان

دانشگاه بیرجند

چکیده

عملکرد نمای دو پوسته در فصل گرم سال وابستگی شدیدی به نحوه طراحی اجزای نما و نیز اقلیم مورد بررسی نشان می‌دهد. به بیان دیگر، در صورتی که نمای دو پوسته در اقلیم‌های بسیار گرم استفاده شود، می‌تواند میزان بار ساختمان را افزایش دهد. برای رفع این مشکل، دو راه حل ذخیره‌سازی انرژی خورشیدی و جلوگیری از ورود بار ناشی از تابش‌های خورشیدی با بکارگیری اجزای کمکی مانند سایه‌اندازها در نمای دو پوسته مورد توجه مهندسان قرار گرفته است. بر این اساس در سالهای اخیر، ایده‌ استفاده از نماهای دو پوسته دارای پوشش گیاهی به منظور کاهش مصرف انرژی در فصل گرم سال ارائه شده است. در تحقیق حاضر، با در نظر گرفتن یک ساختمان بلند مرتبه با نمای دو پوسته دارای پوشش گیاهی در اقلیم تهران، به تحلیل عملکرد حرارتی نماهای دو پوسته دارای پوشش گیاهی در طول سال پرداخته شده است. نتایج نشان داد که استفاده از نماهای دو پوسته معمولی، اگر چه در ماه‌های سرد حدود 3/24 درصد مصرف انرژی را کاهش می‌دهد؛ ولی می‌تواند موجب افزایش 3/18 درصدی بار سرمایشی در تابستان شود، در حالی که با استفاده از نماهای دو پوسته‌ دارای پوشش گیاهی مصرف انرژی در ماه‌های سرد و گرم سال، به ترتیب حدود 4/21% و 5/22% کاهش خواهد یافت.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigation of the Effect of Green Double Skin Facades on Energy Consumption of High-rise Buildings in Tehran's Climatic Conditions

نویسندگان [English]

  • Alireza Zolfaghari
  • Mehran Saadatinasab
  • Elaheh Noroozi Jajarm
چکیده [English]

In the warm season, the performance of double skin facades has a significant dependence on the façade design details and climatic conditions. On the other hand, using the double skin facades can increase the building cooling load. In order to eliminate this problem, two different approaches have attracted the intrest of engineers: solar energy storage and preventing the solar radiation from entering the building by using shading devices. Therefore, in the recent years, the idea of using double skin facades with plants has been proposed in order to decrease the summer energy consumption of buildings. In this study, a thermal performance analysis has been performed by considering a high-rise building with the plants double skin façade in Tehran climatic conditions. The results indicate that although using the ordinary double skin façades can decrease the building’s energy consumption up to 24.3% in cold months of the year; it can lead to increase the summer cooling load about 18.3%. However, by using double skin façades with the plants, the building’s energy consumption in cold and warm seasons may decrease about 21.4% and 22.5%, respectively.

کلیدواژه‌ها [English]

  • double skin facade
  • green wall
  • Energy consumption
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