SBIR Phase I: Regenerative Ionic Freeze Suppression for Thermally Bound Energy Storage Systems

SBIR 第一阶段：热束缚储能系统的再生离子冻结抑制

• 批准号: 1345502
• 负责人: Russell Muren
• 金额: $ 14.15万
• 依托单位: Rebound Technologies, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-01-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1345502&HistoricalAwards=false
• 关键词: SBIR; Phase; Regenerative; Ionic; Freeze

This Small Business Innovation Research (SBIR) Phase I project will investigate an energy storage technique utilizing water as the storage material in an ionic, time delayed, freeze-point-suppression refrigeration cycle. The project will demonstrate A) 70% Round-Trip-Efficiency on a 2kW system prototype utilizing diurnal ambient temperature swing and B) commercial feasibility of load shifting energy storage with 3-year payback. Successful integration within low temperature refrigeration architectures requires reducing membrane distillation feed temperature and liquid-to-solid thermal regeneration equipment costs, technical obstacles demanding membrane material coatings and advanced additive manufacturing research. More specifically, the project team will advance air-gap membrane technologies by enabling wide temperature module operation via new membrane and condenser surface coatings, while improving liquid-to-solid thermal regeneration utilizing a single, 3D printed heat exchanger designed and optimized for sub-0C applications. The broader impact/commercial potential of this project provides utilities peak demand relief, retail stores reduced freezer operating costs and regulators safer refrigerants. Unfortunately, no state-of-the-art system simultaneously addresses all these issues. Industrial/commercial energy storage is unaffordable, refrigeration costs account for 60% of a retail store?s electricity bills and equipment manufactures are scrambling to design around toxic ammonia and high pressure, high cost CO2. This energy storage technology provides load-shifting services and a 45% reduction in commercial freezer electrical purchases with a 3-year payback without large government incentives using safer, near ambient, materials.

这个小企业创新研究（SBIR）第一阶段项目将研究一种能量储存技术，该技术利用水作为离子、延时、抑制冰点制冷循环中的储存材料。该项目将演示A)利用昼夜环境温度变化的2kW系统原型上70%的往返效率；B) 3年投资回报的负载转移储能的商业可行性。在低温制冷架构中成功集成需要降低膜蒸馏进料温度和液固热再生设备成本，以及膜材料涂层和先进增材制造研究的技术障碍。更具体地说，项目团队将推进气隙膜技术，通过新的膜和冷凝器表面涂层实现宽温度模块的操作，同时利用单个3D打印热交换器改善液固热再生，该热交换器专为零下应用而设计和优化。该项目的广泛影响/商业潜力为公用事业提供高峰需求缓解，零售商店降低冷冻机运营成本，监管机构提供更安全的制冷剂。不幸的是，没有一个最先进的系统能同时解决所有这些问题。工业/商业能源储存是负担不起的，冷藏成本占零售商店的60% ？美国的电费和设备制造商正争先恐后地围绕有毒的氨和高压、高成本的二氧化碳进行设计。这种储能技术提供了负载转移服务，并在没有大量政府激励的情况下，使用更安全、更接近环境的材料，在3年的投资回报期内减少了45%的商业冷冻电器采购。