...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy and Buildings >Evaluation of alternatives for reducing thermal bridges in metal panel curtain wall systems
【24h】

Evaluation of alternatives for reducing thermal bridges in metal panel curtain wall systems

机译：评估减少金属板幕墙系统中热桥的替代方案

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Building envelopes incorporate thermal bridges, through which heat is transferred in either two or three dimensions. These thermal bridges lead to undesirable heat transfer, thereby resulting in an overall reduction in the insulation performance. In this study, alternatives were proposed to reduce the linear and point thermal bridges found in steel truss metal panel curtain wall systems in which metal panels fabricated by covering six faces of insulation with metal are fixed to the truss. Three-dimensional heat transfer simulations and mock-up tests were conducted to evaluate the insulation performance of the alternatives. Alo, life-cycle costs were analyzed to evaluate the economic feasibility of the selected alternative. The evaluation results showed that the alternative 2, in which the lengths of the aluminum molding at the sides of the metal panel were reduced and for which thermally broken brackets were used, was the most effective alternative. The mock-up test performed in winter showed that the alternative 2 largely reduced the heat loss through the thermal bridges and had better insulation performance. Assuming a lifetime of 40 years, the alternative 2 would reduce the life cycle costs by 10.9% relative to the existing case. (C) 2016 Elsevier B.V. All rights reserved.
机译：建筑围护结构包含热桥，通过热桥可以二维或三维形式传递热量。这些热桥导致不希望的热传递，从而导致绝缘性能的整体降低。在这项研究中，提出了替代方案以减少在钢桁架金属面板幕墙系统中发现的线性和点热桥，在该系统中，通过用金属覆盖六个绝缘面而制成的金属面板固定在桁架上。进行了三维传热模拟和模型测试，以评估替代方案的隔热性能。还分析了生命周期成本，以评估所选替代产品的经济可行性。评估结果表明，替代方案2是最有效的替代方案，在该替代方案中，金属面板侧面的铝模制件的长度减少了，并且使用了热折弯的支架。冬季进行的模拟测试表明，替代方案2大大降低了通过热桥的热量损失，并具有更好的隔热性能。假设寿命为40年，相对于现有案例，替代方法2可以将生命周期成本降低10.9％。 （C）2016 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号