SBIR Phase I: Passive Radiative Composite Material

SBIR第一期：无源辐射复合材料

• 批准号: 1648007
• 负责人: Alex Heltzel
• 金额: $ 22.5万
• 依托单位: PC Krause and Associates, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-12-01 至 2017-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1648007&HistoricalAwards=false
• 关键词: SBIR; Phase; Passive; Radiative; Composite

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project will be observed through a direct reduction in the energy consumption required by large industrial facilities, commercial buildings, campuses, and homes. Due to reduced cooling demands as a result of carefully designed radiative properties, the sustainability of federal and industry facilities will be significantly improved with the installation of PRC roofing material for building energy management. A complementary function of PRC roofing is found with the potential for enhanced condensation from the ultra-cool surface, presenting the ability to integrate PRC for improved rooftop water harvesting, directly impacting critical water supply issues and the expensive effects of drought on regional agriculture. The market demand for cool roofing materials has exceeded $750M, annually, and is expected to grow with recent energy regulations. PRC roofing material can expect to compete in a growing industry due to non-trivial improvement over state-of-the-art options in commercial cool roofing products and the economic fabrication method identified in the PRC conceptual design stage. Opportunities extend beyond structural thermal management to facilities dedicated to condensation of atmospheric water vapor in isolated regions without access to satisfactory water supplies, and portable use for emergency water harvesting.The proposed project will provide the critical design, testing, and experimental validation needed to transition PRC technology into the commercial sector. Designs based on electromagnetic and thermal modeling include composite material options capable of providing passive radiative flux of over 100 Watts per square meter of installed material. This passive cooling advantage?relative to current commercial cool roofing materials?is expected to create significant long-term cost-savings and reduction in fossil fuel usage for climate controlled structures. PRC material properties designed to be selective across the ultraviolet-visible-infrared spectrum offer the opportunity for intelligent thermal management through reflection of visible and near-infrared portions of the radiative spectrum, while emitting strongly in the 8-13 ìm atmospheric transmission window. A primary objective of the SBIR project is to optimize PRC designs considering full spectrum properties with three criteria in mind: thermal efficiency improvement, prototype fabrication, and large batch manufacturing economy. The second primary objective is sub-scale fabrication and spectral characterization of the PRC roofing material. Subsequent demonstration of a functional PRC sample with quantified passive cooling power is key to the goals of attracting licensing clients and/or investments for commercial-grade manufacturing.

这个小型企业创新研究（SBIR）第一阶段项目的更广泛的影响/商业潜力将通过直接减少大型工业设施，商业建筑，校园和家庭所需的能源消耗来观察。由于精心设计的辐射特性导致冷却需求减少，安装用于建筑能源管理的中华人民共和国屋顶材料将显着提高联邦和工业设施的可持续性。PRC屋顶的补充功能被发现具有增强超冷表面冷凝的潜力，能够整合PRC以改善屋顶集水，直接影响关键的供水问题和干旱对区域农业的昂贵影响。对凉爽屋顶材料的市场需求每年已超过7.5亿美元，并且预计将随着最近的能源法规而增长。中国屋顶材料有望在不断增长的行业中竞争，这是由于在商业凉爽屋顶产品的最先进选择方面取得了重大改进，以及在中国概念设计阶段确定了经济的制造方法。机会延伸到结构热管理以外的设施，专门用于在没有获得满意的供水的孤立地区冷凝大气水蒸气，以及用于紧急集水的便携式用途。拟议的项目将提供关键的设计，测试和实验验证所需的PRC技术过渡到商业部门。基于电磁和热建模的设计包括复合材料选项，能够提供每平方米安装材料超过100瓦的被动辐射通量。这种被动冷却的优势？相对于目前的商用凉爽屋顶材料？预计将为气候受控结构带来显着的长期成本节约并减少化石燃料的使用。PRC材料的特性设计为在紫外-可见-红外光谱范围内具有选择性，通过反射辐射光谱的可见光和近红外部分，同时在8-13 μ m的大气透射窗口中强烈发射，为智能热管理提供了机会。SBIR项目的主要目标是优化PRC设计，考虑全光谱特性，考虑三个标准：热效率提高，原型制造和大批量制造经济性。第二个主要目标是PRC屋顶材料的小规模制造和光谱表征。随后展示具有量化被动冷却功率的功能性PRC样品是吸引许可客户和/或商业级制造投资的关键。