کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4760016 1421866 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original articleThermal mitigation of hydroponic green roof based on heat balance
ترجمه فارسی عنوان
مقاله اصلی کاهش تدریجی سقف سبز هیدروپونیک بر اساس تعادل حرارتی
کلمات کلیدی
پشت بام سبز، اجزای تعادل حرارتی، شار گرما خنثی، کاهش دهنده حرارتی، سبز سازی شهری، جزیره گرمایی شهری،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک جنگلداری
چکیده انگلیسی


- Thermal mitigation effect by a hydroponic urban greening system was clarified.
- Mitigation effects were explained by mitigation factors composed of heat balance terms.
- Latent heat flux was the primary mitigation factor.
- Water heat storage flux and conductive heat flux were also important terms.
- Composition of heat balance terms could estimate thermal mitigation effects in green roof area.

The creation of green rooftops is an important method for mitigating heat build-up in urban rooftop environments because they lower the sensible heat flux over the rooftop and conductive heat flux into the building. We propose a model for assessing thermal mitigation effects through a hydroponic urban greening system based on heat balance. We conducted an experiment with two different rooftops at two study sites, which were monitored for two months in two different years. Each rooftop was divided into two areas: one bare, the other covered by the hydroponic urban greening system. Parameters measured in both areas were air temperature, surface temperature, and conductive heat flux. The data were analyzed using three thermal mitigation indices. However, it was difficult to show a uniform relationship between the latent heat flux and mitigation indices during the period of analysis. This suggests it would be necessary to include factors such as latent heat flux, conductive heat flux, and water heat storage flux to assess the thermal mitigation effect. Our research indicated that the composition of heat balance terms could estimate thermal mitigation effects in the green roof area independent of the year. The results suggest a principle for assessing the mitigation effects of urban greening on the thermal environment.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Urban Forestry & Urban Greening - Volume 24, May 2017, Pages 92-100
نویسندگان
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