| 摘要: |
| 采用EnergyPlus能耗模拟软件对不同气候区代表城市的办公建筑的种植屋面进行全年逐时能耗模拟，以分析研究种植屋面的节能率以及关键参数对能耗的影响规律。结果表明：对比在不同参数情况下种植屋面与普通屋面的能耗情况，发现北京、重庆和广州的种植屋面全年能耗最大节能率分别为8.66%、14.05%和10.48%。通过分析土壤厚度、植物高度和叶面积指数（LAI）对种植屋面能耗影响的规律，发现低的土壤厚度和高的植物高度均有利于降低供冷能耗，高的土壤厚度和低的植物高度均有利于降低供热能耗。 |
| 关键词: 种植屋面 能耗模拟 节能 EnergyPlus |
| DOI：10.11841/j.issn.1007-4333.2014.04.26 |
| 投稿时间：2013-07-30 |
| 基金项目:中美清洁能源联合研究中心建筑节能合作项目（2010DFA72740-03-06）；中央高校基本科研业务费科研专项（106112012CDJZR210005） |
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| Influences of green roof key parameters on its energy saving effects |
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SUN Le-xiang1, BAI Xue-lian1, LIANG Qing-zhen2
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| (1.Department of Urban Construction and Environment Engineering/Key Laboratory of Three Gorges Reservoir Region's Eco-Environment of Ministry of Education, Chongqing University, Chongqing 400045, China;2.College of Bioengineering, Chongqing University, Chongqing 400044, China) |
| Abstract: |
| Green roof has the effects of reducing building energy consumption and improving the ecological environment.This article used EnergyPlus to simulate the annual energy consumption of the selected cities' office building with different of green roof parameters.These cities were selected from different climatic zones.The purpose of this article is to study energy saving rate of plant roof and to analyze the way that key parameters impact on energy consumption.Compare the energy consumption of green roof with that of the ordinary roof,it shows that the largest annual energy-saving rate of green roofs in Beijing,Chongqing and Guangzhou is 8.66%,14.05% and 10.48%.Analysis the effects of soil thickness,plant height,LAI on the energy consumption of green roof,we find that that low soil thickness and high plant height is helpful to reduce cooling energy consumption,high soil thickness and low plant height help reduce heating energy consumption. |
| Key words: green roof energy consumption simulation energy saving EnergyPlus |
