کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10260296 163471 2014 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of high-albedo materials on pedestrian heat stress in urban street canyons
ترجمه فارسی عنوان
تاثیر مواد آلبیدو بالا بر استرس گرمایی عابران پیاده در کانی های شهری
کلمات کلیدی
شاخص تنش حرارتی، مدل دمای هوای کانیون، میانگین دمای تابشی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
Extensive use of high-albedo materials has been advocated as a means of mitigating the urban heat island, especially in warm-climate cities. The implicit assumptions of this strategy are that by lowering canopy layer air temperature, cities will enjoy (a) reduced air conditioning loads in buildings and (b) improved thermal comfort for pedestrians in outdoor urban spaces. The second of these assumptions is examined here by means of computer modeling, in a two-stage approach whereby thermal comfort (represented by the Index of Thermal Stress) is calculated using detailed microclimatic input data simulated by a canyon model (CAT). The analysis suggests that although use of high-albedo materials in canyon surfaces may lower air temperature, the reduction is not enough to offset increased radiant loads. As a result, pedestrian thermal comfort may in fact be compromised.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Urban Climate - Volume 10, Part 2, December 2014, Pages 367-386
نویسندگان
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