Analysis of thermal behavior of a green roof system using test platforms
The aim of this study is to analyze experimentally the thermal behavior of an extensive green roof system compared to a control system. The experiment consisted of two test platforms built to reproduce an extensive green roof system, one of which perennial peanut was grown and the other one was main...
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| Main Authors: | , |
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| 格式: | Online |
| 语言: | por |
| 出版: |
Universidade Estadual de Campinas
2016
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| 在线阅读: | https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8647932 |
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| 总结: | The aim of this study is to analyze experimentally the thermal behavior of an extensive green roof system compared to a control system. The experiment consisted of two test platforms built to reproduce an extensive green roof system, one of which perennial peanut was grown and the other one was maintained without vegetation. The temperatures of the upper and lower levels of the substrate and also external temperatures below the base of the platforms were monitored by means of thermocouples The climatic variables were recorded by the automatic weather station and the analysis of the thermal behavior was based on the approaches of dynamic climatology. The green roof showed better thermal performance compared to control coverage by having a larger thermal lag between the upper and lower surfaces, the lower temperature range on surfaces and lower maximum temperatures than the maximum air temperature. It was concluded that for a hot, dry day a dense vegetation cover influences the heat exchange process in the substrate layer by blocking the solar radiation, allowing the upper surface does not reach temperatures above the maximum daily air temperature and also that this temperature is registered with higher delay at the bottom surface. |
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