Thermal conductivity measurement of a new energy saving wall assembly

新型节能墙体组件的导热系数测量

• 批准号: 518168-2017
• 负责人: Chiao, Mu
• 金额: $ 0.26万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640401
• 关键词: Thermal; conductivity; measurement; new; energy

Conventional light gauge steel framing has solid steel webs, which result in significant thermal bridging energylosses, or gains, in building walls. Structawire Corp (SWC) has devised a new steel framing stud where thesolid web is replaced with a double wire truss that is resistance welded to two flanges. Heat transmissionthrough this innovative stud is reduced by 80 to 85%. However, in preliminary testing, it has been discoveredthat the actual heat flows are lower than predicted by modeling and calculations. The hypothesis for thisdifference is that resistance to heat flow through the weld points is greater than expected. The UBC teamworked with SWC and successfully constructed a thermal conductivity apparatus and this Engage plus grantwill aim to further test samples from SWC. Through understanding the thermal properties of the weld points,optimized steel framing stud can be built.

传统的轻钢框架有坚固的钢腹板，这会导致建筑墙中显著的热桥能量损失或收益。Structawire公司(SWC)设计了一种新的钢框架螺栓，其中实心腹板被双丝桁架取代，双丝桁架被电阻焊接到两个法兰上。通过这种创新的螺柱传递的热量减少了80%到85%。然而，在初步测试中，发现实际热流低于模拟和计算预测的热流。这种差异的假设是，通过焊接点的热流阻力比预期的要大。UBC团队与SWC合作，成功建造了一台导热设备，此次Engage Plus将致力于进一步测试SWC的样品。通过了解焊接点的热性能，可以建立优化的钢框架柱。