SBIR Phase II: Grid-scale electricity storage from waste heat

SBIR 第二阶段：利用废热进行电网规模电力存储

• 批准号: 2052019
• 负责人: Levon Atoyan
• 金额: $ 99.94万
• 依托单位: Active Energy Systems, Inc.
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-05-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2052019&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Grid; scale

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project is to unleash the potential of water as a thermal energy storage medium for building air conditioning. Today’s commercial ice storage systems, based on Ice-on-Coil (IOC) technology, fails to capture this potential because efficiently moving thermal energy into and out of water as it freezes and melts is challenging. The proposed Icephobic Heat Exchange (IHEX) technology eliminates the adhesion of freezing water to cold surfaces, preventing ice buildup on the coil and realizing the power of water for low-cost, high efficiency, resilient building cooling. IHEX based thermal storage removes the primary barriers to product adoption: high cost and spatial constraint limitations. It helps building owners lower their cooling costs, strengthen their cooling resiliency, and reduce their carbon emissions through affordable and spatially adaptable solutions. From a broader perspective, storing energy is imperative to a sustainable electric grid. Globally, an estimated potential for up to 2.8% of worldwide GHG emissions can be offset through full scale deployment of IHEX technology in building cooling. Beyond reliable access to power from intermittent renewable sources, cost-effective thermal storage can increase cooling resiliency by meeting cooling demand when the electric grid is down.This SBIR Phase II project proposes to catalyze development of IHEX technology by demonstrating high reliability for IHEX materials and establish high energy density, efficiency, and cooling resiliency for commercial-scale IHEX systems. IOC systems use miles of tubing to generate the necessary amount of surface area for heat transfer, which is costly and energy intensive, and their modular systems require significant space. This project will demonstrate that IHEX technology meets all the existing strengths of IOC technology, such as durability, while addressing potential economic concerns. First, materials testing will be completed after a year’s worth of freeze/melt cycling on a prototype-scale system to indicate long IHEX system life. Second, the ability to use customizable storage tanks with high energy density will be demonstrated. Customizable, space-filling tanks will help IHEX technology eliminate the physical space constraints that have thwarted so many commercial projects. Third, a commercial-scale IHEX system will be used to derive a 20% energy efficiency improvement compared to IOC solutions and a low, $28/ton-hr cost. And finally, by working with our product end-users and industry, a 67% reduction in total cost of ownership compared to conventional cooling systems will be shown.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该小型企业创新研究 (SBIR) 项目的更广泛影响/商业潜力是释放水作为建筑空调热能存储介质的潜力，该系统基于盘管冰 (IOC)。技术未能发挥这一潜力，因为在水结冰和融化时有效地将热能移入和移出水是一项挑战，所提出的疏冰热交换（IHEX）技术消除了结冰的水对冷表面的粘附，从而防止盘管上结冰。和实现基于 IHEX 的低成本、高效率、弹性建筑冷却的水力消除了产品采用的主要障碍：高成本和空间限制限制，它可以帮助建筑物业主降低冷却成本，增强冷却弹性，从更广泛的角度来看，存储能源对于可持续电网至关重要，预计全球 2.8% 的温室气体排放量可以通过全面部署 IHEX 来抵消。技术在除了从间歇性可再生能源可靠地获取电力之外，具有成本效益的热存储还可以通过满足电网故障时的冷却需求来提高冷却弹性。该 SBIR 第二阶段项目旨在通过展示建筑的高可靠性来促进 IHEX 技术的发展。 IHEX 材料并为商业规模的 IHEX 系统建立高能量密度、效率和冷却弹性，使用数英里长的管道来产生传热所需的表面积，这是昂贵且能源密集型的。该项目将证明 IHEX 技术满足 IOC 技术的所有现有优势（例如耐用性），同时解决潜在的经济问题。首先，材料测试将在一年的冷冻/融化循环后完成。其次，将展示使用具有高能量密度的可定制储罐的能力，可定制的空间填充储罐将帮助 IHEX 技术消除阻碍如此多的物理空间限制。第三，与 IOC 解决方案相比，商业规模的 IHEX 系统将提高 20% 的能源效率，并且成本较低，为 28 美元/吨/小时。最后，通过与我们的产品最终用户和行业合作。与传统冷却系统相比，总拥有成本降低了 67%。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。