دانلود مقاله ISI انگلیسی شماره 64833
عنوان فارسی مقاله

خواص اجزای بام سبز: اندازه گیری خواص حرارتی و هیدرولوژیکی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
64833 2012 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Characterization of green roof components: Measurements of thermal and hydrological properties
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Building and Environment, Volume 56, October 2012, Pages 78–85

کلمات کلیدی
بام های سبز؛ خواص؛ ایزوترم جذب؛ رسانایی گرمایی؛ تبخیر و تعرق
پیش نمایش مقاله
پیش نمایش مقاله خواص اجزای بام سبز: اندازه گیری خواص حرارتی و هیدرولوژیکی

چکیده انگلیسی

In this study, three of the main physical properties of green roofs were experimentally investigated to determine some of the key green roof modeling parameters. First, the thermo-physical properties of green roofs were characterized by correlating the thermal conductivity of the substrate with the water content for different substrates and maximum water capacities. Next, the moisture storage was characterized using the dynamic vapor sorption technique to determine both the sorption and desorption isotherms for three different temperatures as well as the moisture buffer capacity. Third, the micro-structural properties of green roof substrate were characterized using mercury intrusion porosimetry to measure the porosity range of the substrate and to compare this porosity range with different concrete porosities. In addition to these characterizations, the evapotranspiration term, which is very important in the water balance, was measured. The few studies found in literature provide the expression of the evapotranspiration term for a watered grass and vegetated areas on a large scale. In this study, this term is expressed for the experimentally studied green roof complex (substrate + vegetation). The ultimate objective of these experiments is to estimate the parameters used as input data in the developed green roof model to evaluate the energy performance of a building.

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