Fluid Mechanics and Heat Transfer in Multiphase Energy Systems

多相能源系统中的流体力学和传热

• 批准号: 409-2013
• 负责人: Soliman, Hassan
• 金额: $ 2.33万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568118
• 关键词: Fluid; Mechanics; Heat; Transfer; Multiphase

The research program outlined in this proposal involves fundamental studies aimed at improving our understanding of the fluid flow, heat, and mass transfer processes encountered in energy systems. This improved understanding will enable us to develop new design methodologies for more efficient, economical, and safe energy systems. The studies proposed in this program span a fairly wide area of research relevant to multiphase systems, with and without phase change. The specific systems targeted in the proposed program include components in nuclear and conventional power plants, heat pipes, thermosyphons, refrigeration and air-conditioning systems, and flow distribution systems. The work on multiple discharges from two-phase headers involves experimental and analytical studies aimed for the accurate prediction of multiple discharges from two-phase headers (simulating the CANDU header-feeder system during accidents). The proposed research on two-phase flow in tee junctions (impacting and combining) aims to produce new experimental data and theoretical models (currently lacking in the literature) that could be used in advancing the design of multiphase flow-distribution systems, as well as identifying possible designs for simple and low-cost phase separators. Research on reflux condensation will follow a rigorous approach in modeling the pertinent heat and mass transfer processes. These results are relevant to the design of heat pipes and thermosyphons, and the safety analysis of passive condensers in the containment building of nuclear power plants. Overall, the results of this research program will not only contribute to fundamental knowledge in the area of two-phase flow, but also have significant impact on the safety analysis of CANDU header-feeder systems and passive condensers, the development of simple, low-cost phase separators, and the generation of (yet unavailable) design models for junctions used in multiphase flow-distribution systems. An important feature of the proposed research program is the training of highly-qualified personnel. Seven graduate students (doctoral and master's) will receive advanced training in this program.

该提案中概述的研究计划涉及基础研究，旨在提高我们对能源系统中遇到的流体流动、热量和质量传递过程的理解。这种加深的理解将使我们能够开发新的设计方法，以实现更高效、经济和安全的能源系统。该计划提出的研究涵盖了与多相系统（有相变和无相变）相关的相当广泛的研究领域。拟议计划的具体系统包括核电站和常规电站的组件、热管、热虹吸管、制冷和空调系统以及流量分配系统。关于两相集管多次放电的工作涉及实验和分析研究，旨在准确预测两相集管多次放电（模拟事故期间的 CANDU 集管馈线系统）。所提出的对 T 形接头中两相流（冲击和组合）的研究旨在产生新的实验数据和理论模型（目前文献中缺乏），可用于推进多相流分配系统的设计，以及确定简单且低成本的相分离器的可能设计。回流冷凝的研究将遵循严格的方法来模拟相关的传热和传质过程。这些结果对热管和热虹吸管的设计以及核电站安全壳建筑中非能动冷凝器的安全分析具有重要意义。总体而言，该研究项目的结果不仅有助于两相流领域的基础知识，而且对 CANDU 集管馈线系统和无源冷凝器的安全分析、简单、低功耗的开发具有重大影响。成本相分离器，以及为多相流分配系统中使用的连接点生成（尚未可用）设计模型。拟议研究计划的一个重要特点是培养高素质人才。七名研究生（博士生和硕士生）将在此项目中接受高级培训。