SGER: Development of Nanoemulsion Fluids with Enhanced Properties

SGER：开发具有增强性能的纳米乳液

• 批准号: 0711095
• 负责人: Bao Yang
• 金额: $ 7.53万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-02-15 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0711095&HistoricalAwards=false
• 关键词: SGER; Development; Nanoemulsion; Fluids; Enhanced

Award Number: 0711095Title: SGER: Development of Nanoemulsion Fluids with Enhanced PropertiesName: Bao YangInstitution: University of Maryland College ParkABSTRACTThis project aims to overcome barriers of state-of-the-art heat transfer fluids through developing and investigating a new type of fluid nanoemulsion fluids in which liquid nanodroplets are used to improve the thermal properties of the base fluids. Such fluids are expected to provide an unprecedented combination of highly desirable features for thermal applications, including high thermal conductivity, high heat capacity, long-term stability, and mass-production ability. This proposed effort will build on preliminary experimental results that demonstrate an unusually large improvement in the effective thermal conductivity up to a 52% increase for 12 vol % of water nanodroplets (19.6nm in diameter) in water-in-FC72 nanoemulsion fluids. This work represents the first experiments on the thermal conductivity of suspensions of liquid nanodroplets (100nm in diameter) in heat transfer fluids.Intellectual Merit: The key innovative aspects of the project are that nanoemulsion fluids will be developed and used as model systems to probe thermal transport in suspensions of nanoparticles. Various important factors that potentially affect thermal properties of such fluids, including particle mobility, particle size, and nonuniform distribution of particles, will be systematically investigated to address the long-debated mechanisms of thermal conductivity enhancement observed in suspensions of nanoparticles. The use of Phase Change Materials (PCMs) as nanodroplets will be explored to simultaneously improve the effective thermal conductivity and heat capacity of the base fluids. Various PCMs and base fluids will be investigated for determining PCM nanoemulsion systems suitable for thermal applications.Broader Impacts: Improving the thermal properties of heat transfer fluids would result in substantial energy efficiency improvements across a wide range of industries. A graduate student and an assistant professor will be supported by this project, and undergraduate students will be exposed to this work by introducing nanoemulsion fluids into an undergraduate heat transfer laboratory course.

奖项编号：0711095标题：SGER：开发具有增强性能的纳米乳液名称： 宝杨机构： 马里兰州大学园区摘要本项目旨在通过开发和研究一种新型的流体纳米乳液流体来克服最先进的传热流体的障碍，其中液体纳米液滴用于改善基础流体的热性能。这种流体有望为热应用提供前所未有的高度期望的特征组合，包括高导热性、高热容、长期稳定性和大规模生产能力。这项拟议的努力将建立在初步实验结果的基础上，这些实验结果表明，在FC72纳米乳液中的水的纳米液滴（直径为19.6nm）的12体积%下，有效热导率提高了52%。 这项工作代表了第一个实验的导热系数的悬浮液的液体纳米液滴（直径100纳米）在heat transfer fluids.Intellectual优点：该项目的关键创新方面是，纳米乳液流体将被开发和用作模型系统，以探测热传输的纳米颗粒悬浮液。各种重要的因素，可能会影响这种流体的热性能，包括颗粒的流动性，粒径，和颗粒的不均匀分布，将系统地研究，以解决长期争论的机制，观察到的纳米粒子的悬浮液中的热导率增强。 将探索使用相变材料（PCM）作为纳米液滴，以同时提高基础流体的有效热导率和热容。各种PCM和基础流体将被调查，以确定PCM纳米乳液系统适用于thermalapplication.Broader影响：改善传热流体的热性能将导致在广泛的行业能源效率的显着改善。 一名研究生和一名助理教授将得到该项目的支持，本科生将通过将纳米乳液流体引入本科生传热实验室课程来接触这项工作。