تحلیل انرژی بار سرمایشی ساختمان با استفاده از سایبان و عایق حرارتی در سه اقلیم گرم، معتدل و سرد ایران

نوع مقاله: مقاله علمی ترویجی

نویسندگان

1 دانشگاه آزاد اسلامی واحد دماوند

2 دانشگاه علم و صنعت ایران

چکیده

امروزه برای فراهم کردن آﺳﺎﻳﺶ در ﺳﺎﺧﺘﻤﺎنﻫﺎ انرژی زیادی صرف می‌شود که ضروریست ﻣﻴﺰان اﻧﺮژی ﻣﺼﺮﻓﻲ ﺳﻨﺠﻴﺪه و راهکارهای مناسب جهت کاهش مصرف اﻧﺮژی ارایه گردد. ﻳﻜﻲ از راهﻫﺎی ﺑدﺳﺖ آوردن ﻣﻘـﺪار انرژی مصرفی جهت ایجاد آسایش، اﺳـﺘﻔﺎده از ﺑﺮﻧﺎﻣـه‌ﻫـﺎی ﺷﺒﻴﻪ‌ﺳﺎزی ﻣﺼﺮف اﻧﺮژی ساختمان مانند انرژی‌پلاس و دیزاین‌بیلدر ﻣﻲﺑﺎﺷﺪ. در این مقاله یک مدل واقعی انتخاب و با استفاده از نرم‌افزار دیزاین‌بیلدر میزان انرژی مصرفی جهت بار سرمایش آن در سه شهر اهواز، تهران و تبریز بر اساس دو راهبرد مختلف شبیه‌سازی شده و میزان تاثیرات انها بر مصرف انرژی الکتریکی در روز 1 جولای مورد بررسی و مقایسه قرار گرفته است. راهبرد اول استفاده از معادله انتقال حرارت تشعشعی و کاهش سطح مقطع تابیده شده ساختمان با بکارگیری سایبان با عمق‌های مختلف (6 حالت) است و راهبرد دوم بکارگیری معادله فوریه می‌باشد که با استفاده از عایق حرارتی با ضخامت‌های متفاوت (5 حالت) میزان کاهش شار حرارتی ساختمان محاسبه شده است. نتایج نشان داد که برای شهر اهواز و تهران راهبرد دوم با اختلاف زیادی بر راهبرد اول ارجحیت دارد ولی در شهر تبریز اختلاف دو راهبرد کم می‌باشد. همچنین نتایج شهر اهواز نشان داد که تصور ما در کاهش مصرف انرژی با استفاده از سایبان غالبا صحیح نمی‌باشد و کاربرد عایق حرارتی حتی با ضخامت یک سانتیمتر تاثیر خوبی در کاهش مصرف انرژی دارد.

کلیدواژه‌ها

موضوعات


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