Collaborative Research: Supercritical Fluids and Heat Transfer - Delineation of Anomalous Region, Ultra-long Distance Gas Transport without Recompression, and Thermal Management

合作研究:超临界流体与传热——异常区域的描绘、无需再压缩的超长距离气体传输以及热管理

基本信息

  • 批准号:
    2327571
  • 负责人:
  • 金额:
    $ 37.07万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-09-01 至 2026-08-31
  • 项目状态:
    未结题

项目摘要

Fluids under supercritical (SC) conditions, where distinct liquid and gas phases no longer exist, are found in nature and technological systems that can take advantage of the extreme changes that take place near the critical temperature and pressure. The increases in heat transfer, reductions in fluid friction, and high solubility of SC fluids have current and potential applications in pipeline transport of natural gas, delivery of carbon dioxide as part of carbon capture and storage processes, working fluids for thermal and nuclear power plants, solar and geothermal energy conversion systems, and enhanced cooling of electronic devices and data centers. Despite the advantages offered by the unique properties of SC fluids, their wide-spread use has been curtailed because of inadequate understanding of anomalous behaviors, characterized by large-scale variations in thermophysical properties in the critical region, resulting in thermal and flow oscillations and other detrimental phenomena. Additionally, the critical temperature and pressure range, specific to each substance, may not fit a particular technological need. This research will address the anomalous behavior knowledge gaps of an important set of SC fluids, which will open the door to new technologies for high-capacity, energy-efficient, and environmentally responsible fluid flow and thermal management systems. For example, natural gas under SC conditions (SNG) can be transported via overland, underground, and undersea pipelines for distances greater than 2,000 km. SNG transport is power-efficient and can reduce the number of enroute recompression stations or eliminate them altogether, enabling new trans-oceanic routes that are currently impossible, serving the US national interest as well as providing energy security elsewhere in the world. In comparison with liquified natural gas (LNG), SNG transport can be less expensive, have reduced environmental impact, and be more secure and safe. Knowledge generated in the study of SNG transport will be useful in determining the thermodynamic states of carbon dioxide when it is transported from shorelines to the ocean floor for sequestration. Likewise, development of methods to transport SC oxygen, nitrogen, and other important industrial/medical gases will benefit from this work. The broader impacts of this research include educational opportunities in SC transport phenomena and outreach to underrepresented groups using the wide range of current and potential SC technologies to motivate interest in thermodynamics.Previous research has shown that anomalous fluid transport behavior near the critical point starts in the subcritical state above the triple point and continues deep into the SC state. In this research program, a thermodynamic model based on Gibbs free energy will be developed to delineate the temperature-pressure boundaries of the anomalous states and characterize the higher-order phase transitions. It will be applied to a set of naturally/industrially important SC fluids including water, carbon dioxide, methane, argon, and nitrogen. This analysis will lead to the identification of safe conditions at which SC fluids, including supercritical natural gas (SNG), can be transported over long distances without recompression. The full potential for SNG transport will be quantified by developing a one-dimensional computational model for SC thermal transport, accounting for transport property variations and compressibility, environmental thermal conditions, Joule-Thomson phenomena, and thermal resistance of the pipeline. A three-dimensional model will be developed to examine the flow and thermal behavior in the inlet and outlet regions as well as the impact of temperature variations in the surrounding environment. The thermodynamic models also will be employed to design customized mixtures of SC fluids for effective thermal management. The proposed research includes plans to fabricate an experimental apparatus for SC fluid flow and thermal analysis to generate data relevant to SC fluid properties, examine parametric effects for model validation, and explore methods to enhance heat transfer.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.
超临界(SC)条件下的流体,其中不同的液相和气相不再存在,在自然和技术系统中发现,可以利用临界温度和压力附近发生的极端变化。热传递的增加、流体摩擦的减少和SC流体的高溶解度在天然气的管道运输、作为碳捕获和储存过程的一部分的二氧化碳的输送、用于热电厂和核电厂的工作流体、太阳能和地热能转换系统以及电子设备和数据中心的增强冷却中具有当前和潜在的应用。尽管SC流体的独特性质提供了优势,但由于对异常行为的理解不足,其广泛使用受到限制,其特征在于临界区域中热物理性质的大规模变化,导致热和流动振荡和其他有害现象。此外,每种物质特有的临界温度和压力范围可能不适合特定的技术需要。这项研究将解决一组重要的SC流体的异常行为知识缺口,这将为高容量,节能和环保的流体流动和热管理系统的新技术打开大门。例如,SC条件下的天然气(SNG)可以通过陆上、地下和海底管道运输超过2,000 km的距离。SNG运输具有高能效,可以减少途中再压缩站的数量或完全消除它们,从而实现目前不可能实现的新跨洋路线,为美国国家利益服务,并为世界其他地方提供能源安全。与液化天然气(LNG)相比,SNG运输成本更低,对环境的影响更小,并且更安全可靠。在天然气运输研究中产生的知识将有助于确定二氧化碳从海岸线运输到海底进行封存时的热力学状态。同样,运输SC氧气、氮气和其他重要工业/医疗气体的方法的开发将受益于这项工作。这项研究的更广泛的影响包括SC传输现象的教育机会和推广到代表性不足的群体使用广泛的当前和潜在的SC技术,以激发对热力学的兴趣。以前的研究表明,临界点附近的异常流体传输行为开始于三相点以上的亚临界状态,并继续深入到SC状态。在这项研究计划中,将开发一个基于吉布斯自由能的热力学模型来描绘异常状态的温度-压力边界,并表征高阶相变。它将应用于一组自然/工业上重要的SC流体,包括水,二氧化碳,甲烷,氩气和氮气。该分析将导致确定SC流体(包括超临界天然气(SNG))可以长距离运输而无需再压缩的安全条件。SNG运输的全部潜力将通过开发SC热运输的一维计算模型来量化,考虑运输特性变化和压缩性、环境热条件、焦耳-汤姆逊现象和管道热阻。将开发一个三维模型,以检查入口和出口区域的流动和热行为,以及周围环境中温度变化的影响。热力学模型还将用于设计定制的SC流体混合物,以实现有效的热管理。拟议的研究包括计划制造一个用于SC流体流动和热分析的实验装置,以生成与SC流体特性相关的数据,检查模型验证的参数效应,并探索增强传热的方法。该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

项目成果

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Vishwanath Prasad其他文献

Vishwanath Prasad的其他文献

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{{ truncateString('Vishwanath Prasad', 18)}}的其他基金

EAGER: Experimental Methods and Measurements of Anomalous Properties of Supercritical Fluids and their Mixtures
EAGER:超临界流体及其混合物反常性质的实验方法和测量
  • 批准号:
    2231393
  • 财政年份:
    2022
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Modernization of Multi-Scale Characterization, Analysis, and Synthesis Facility for Materials and Devices
材料和器件多尺度表征、分析和合成设施的现代化
  • 批准号:
    0963509
  • 财政年份:
    2010
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
The Biomedical Engineering Partnership Program at FIU: Fostering Technology Entrepreneurship, Commercialization, and Clinical Implementation
佛罗里达国际大学生物医学工程合作伙伴计划:促进技术创业、商业化和临床实施
  • 批准号:
    0227869
  • 财政年份:
    2003
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Travel Support for Young Scientists to Participate in the Fifth ISHMT-ASME Heat and Mass Transfer Conference (India) and Expand Global Research Perspectives
为年轻科学家参加第五届 ISHMT-ASME 传热传质会议(印度)并拓展全球研究视野提供差旅支持
  • 批准号:
    0109394
  • 财政年份:
    2001
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Group Travel to Participate in the Fourth ISHMT-ASME Heat and Mass Transfer Conference and Expand Research Interaction, January 2000, Pune, India
团体旅行参加第四届 ISHMT-ASME 传热传质会议并扩大研究互动,2000 年 1 月,印度浦那
  • 批准号:
    9906952
  • 财政年份:
    1999
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Support for 3rd International Workshop on Modeling in Crystal Growth at Stony Brook: Expanding the Research Base and Student Participation
支持石溪第三届晶体生长建模国际研讨会:扩大研究基础和学生参与
  • 批准号:
    9910538
  • 财政年份:
    1999
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Workshop on Thermal Aspects of Manufacturing and Materials Processing: Emerging Technologies and Research Issues
制造和材料加工热学问题研讨会:新兴技术和研究问题
  • 批准号:
    9807074
  • 财政年份:
    1998
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Continuous Czochralski Growth of Silicon Single Crystals
硅单晶的连续直拉法生长
  • 批准号:
    9414606
  • 财政年份:
    1995
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Continuing Grant
Postdoc: Parallel Multizone Adaptive Scheme for Multiphase Systems with Free and Moving Boundaries
博士后:具有自由和移动边界的多相系统的并行多区域自适应方案
  • 批准号:
    9503988
  • 财政年份:
    1995
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Molecular Dynamics Simulation of Thin Film Depositions on Plane Substrates and in Vias
平面基板和通孔中薄膜沉积的分子动力学模拟
  • 批准号:
    9303007
  • 财政年份:
    1993
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Continuing Grant

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相似海外基金

Collaborative Research: Supercritical Fluids and Heat Transfer - Delineation of Anomalous Region, Ultra-long Distance Gas Transport without Recompression, and Thermal Management
合作研究:超临界流体与传热——异常区域的描绘、无需再压缩的超长距离气体传输以及热管理
  • 批准号:
    2327572
  • 财政年份:
    2023
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Collaborative Research: Applying Ion-Exchange Chromatography-Supercritical Fluid Chromatography to Small Molecule Analysis
合作研究:离子交换色谱-超临界流体色谱在小分子分析中的应用
  • 批准号:
    1904454
  • 财政年份:
    2019
  • 资助金额:
    $ 37.07万
  • 项目类别:
    Standard Grant
Collaborative Research: Applying Ion-Exchange Chromatography-Supercritical Fluid Chromatography to Small Molecule Analysis
合作研究:离子交换色谱-超临界流体色谱在小分子分析中的应用
  • 批准号:
    1904919
  • 财政年份:
    2019
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Collaborative Research: Computational and Experimental Investigation of High-Flux Heating of Supercritical Fluids in Microscale Geometries
合作研究:微尺度几何结构中超临界流体高通量加热的计算和实验研究
  • 批准号:
    1604538
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MRI: Acquisition of a Liquid/Supercritical Fluid Chromatoghraphy Mass Spectrometer for Energy and Environmental Research
MRI:购买液体/超临界流体色谱质谱仪用于能源和环境研究
  • 批准号:
    1626100
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    2016
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Collaborative Research: Computational and Experimental Investigation of High-Flux Heating of Supercritical Fluids in Microscale Geometries
合作研究:微尺度几何结构中超临界流体高通量加热的计算和实验研究
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    1604433
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Quasi-free electron energy in supercritical carbon dioxide and water: A research program involving rural and first-generation STEM students
超临界二氧化碳和水中的准自由电子能:一项涉及农村和第一代 STEM 学生的研究项目
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    1465180
  • 财政年份:
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Research of functional evaluation of high-power, high-speed switch using a supercritical fluid
超临界流体大功率高速开关功能评估研究
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    25420273
  • 财政年份:
    2013
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    $ 37.07万
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Foundamental research for microparticle formation by rapid expansion of supercritical solution method
超临界溶液法快速膨胀微粒形成的基础研究
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    24560921
  • 财政年份:
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    $ 37.07万
  • 项目类别:
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Analytical research on decomposition behavior of metal-organic compounds in supercritical fluids and its application for film-deposition process
超临界流体中金属有机化合物分解行为分析研究及其在薄膜沉积中的应用
  • 批准号:
    24760602
  • 财政年份:
    2012
  • 资助金额:
    $ 37.07万
  • 项目类别:
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