SBIR Phase I: Heat exchanger coating retrofit pre-treatment feasibility study

SBIR第一阶段：换热器涂层改造预处理可行性研究

• 批准号: 1520205
• 负责人: Adam Paxson
• 金额: $ 14.96万
• 依托单位: DropWise Technologies Corp.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1520205&HistoricalAwards=false
• 关键词: SBIR; Phase; Heat; exchanger; coating

This Small Business Innovation Research Phase I project will address the challenge of retrofit cleaning and pretreatment of steam condenser tubes prior to the deposition of a performance-enhancing coating. By eliminating the buildup of the insulating film of liquid that normally forms on condenser surfaces, the coating increases the vapor-side heat transfer coefficient by more than a factor of seven, allowing the condenser to pull more steam through the turbine. The successful application of this coating would enable significant increases in cycle efficiencies of in the installed base of steam power plants that generate the vast majority of national electricity, leading to substantial reductions in fuel costs, greenhouse gas emissions, and thermal pollution. This coating technology can be extended to other systems including desalination and heating, ventilating, air conditioning, and refrigeration (HVAC/R), which also rely on condensers to operate efficiently. The intellectual merit of this project comprises the acquisition of systematic knowledge of metal-oxide fouling and deposits in industrial environments, and the development of scalable pretreatment strategies to bridge the gap between laboratory and field-deployed coating depositions. Because this application of hydrophobic coatings has not been achieved at a commercial scale, there currently exists little to no systematic research on the condition of heat exchanger surfaces. The results of this study will be applicable to industrial coatings on industrial equipment beyond just heat exchangers, including distillation columns and moisture separators.

这个小型企业创新研究阶段的I项目将解决在增强性能涂层的沉积之前对蒸汽冷凝器管进行改造清洁和预处理的挑战。通过消除通常在冷凝器表面形成的液体的绝缘膜的堆积，涂层将蒸气侧传热系数增加超过7倍以上，从而使冷凝器可以通过涡轮机拉更多的蒸汽。这种涂层的成功应用将使蒸汽发电厂的安装基地的周期效率显着提高，从而产生绝大多数国家电力，从而大大降低了燃油成本，温室气体排放和热污染。该涂料技术可以扩展到其他系统，包括脱盐和加热，通风，空调和制冷（HVAC/R），这些系统也依赖于冷凝器来有效运行。该项目的智力优点包括在工业环境中获得金属氧化物结垢和沉积物的系统知识，以及开发可扩展的预处理策略，以弥合实验室和野外部署涂层沉积之间的差距。 由于这种疏水涂层的应用尚未在商业规模上实现，因此目前几乎没有关于热交换器表面状况的系统研究。这项研究的结果将适用于除了热交换器之外的工业设备上的工业涂料，包括蒸馏柱和水分分离器。