Experimental quantification of heat and mass transfer process through vegetated roof samples in a new laboratory setup

Paulo Cesar Tabares-Velasco; Jelena Srebric

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Experimental quantification of heat and mass transfer process through vegetated roof samples in a new laboratory setup

机译：在新的实验室中通过植被屋顶样品对传热和传质过程进行实验量化

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A new experimental apparatus, "Cold Plate", was designed and built to quantify heat and mass transfer processes for green roof samples inside an environmental chamber. The "Cold Plate" apparatus addressed shortcomings in the existing data sets available for green roof energy balance calculations. Experimental data collected in this apparatus show that evapotranspiration controlled the intensity of all other heat fluxes, depending on the plant and environmental conditions. Also, under the described laboratory conditions, the uninsulated green roof samples with plants showed an average heat flux reduction of 25% compared to samples without plants. This reduction was due to the plants providing extra shading, additional water storage and better water control mechanisms.

机译：设计并制造了一种新的实验设备“冷板”，以量化环境室内的屋顶绿化样品的传热和传质过程。 “冷板”装置解决了现有数据集中可用于屋顶绿化能量平衡计算的缺点。在该设备中收集的实验数据表明，蒸散量控制了所有其他热通量的强度，具体取决于植物和环境条件。同样，在所述的实验室条件下，与没有植物的样品相比，有植物的未绝缘屋顶绿化样品的平均热通量减少了25％。减少的原因是植物提供了更多的阴影，额外的储水量和更好的水控制机制。

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来源
《International Journal of Heat and Mass Transfer》 |2011年第26期|p.5149-5162|共14页
作者
Paulo Cesar Tabares-Velasco; Jelena Srebric;
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作者单位

Department of Architectural Engineering, The Pennsylvania State University, 222 Engineering Unit A, University Park, PA 16802-1417, United States National Renewable Energy Laboratory, 1617 Cole Blvd. MS 5202, Golden, CO 80401, United States;

Department of Architectural Engineering, The Pennsylvania State University, 222 Engineering Unit A, University Park, PA 16802-1417, United States;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
green roofs; planted roofs; heat and mass transfer; evapotranspiration; energy balance;

机译：绿色屋顶;种植屋顶;传热传质;蒸散量;能量平衡;

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8. Estimating Heat and Mass Transfer Processes in Green Roof Systems: Current Modeling Capabilities and Limitations. ASHRAE Energy Modeling Conference. [R] . Tabares-Velasco, P. C. 2011

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Experimental quantification of heat and mass transfer process through vegetated roof samples in a new laboratory setup

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