Thermal performance of closed-cell foam insulation board under different temperature conditions

不同温度条件下闭孔泡沫保温板的热性能

• 批准号: 516163-2017
• 负责人: Mukhopadhyaya, Phalguni
• 金额: $ 1.82万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Engage 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=640323
• 关键词: Thermal; performance; closed; cell; foam

In recent years concerns have been raised by the stakeholders of Canadian Roofing Industry about the true fieldperformance (thermal resistance) of closed-cell foam insulation in Canadian climates with extreme temperatureconditions and variations. Studies have already indicated that thermal resistance of closed-cell foam insulationwith captive blowing agent/s is a non-linear function of temperature, unlike other traditional thermalinsulations such as glass fiber, mineral wool etc. This unusual thermal characteristic of closed-cell foaminsulation results in over estimation of energy performance of building envelopes. In this scenario, roofingindustry is looking forward to receive credible technical guidance, based on comprehensive research outputs,for realistic thermal resistance value of closed-cell foam insulation board that reflects the field boundarytemperature conditions and type of constructions. The proposed research project aims to address this issuethrough further laboratory, analytical and numerical studies and reaffirm the credibility of current roofingdesign and construction practices in Canada.

近年来，加拿大屋顶行业的利益相关者对加拿大极端温度条件和变化气候下闭孔泡沫隔热材料的真实现场性能（耐热性）提出了担忧。研究已经表明，与玻璃纤维、矿棉等其他传统隔热材料不同，使用自存发泡剂的闭孔泡沫隔热材料的热阻是温度的非线性函数。闭孔泡沫隔热材料的这种不寻常的热特性导致过度估计建筑围护结构的能源性能。在这种情况下，屋顶行业期待获得基于综合研究成果的可靠技术指导，以获得反映现场边界温度条件和建筑类型的闭孔泡沫隔热板的实际热阻值。拟议的研究项目旨在通过进一步的实验室、分析和数值研究来解决这个问题，并重申加拿大当前屋顶设计和施工实践的可信度。