Multiscale Simulation of Local Mass Transfer in Gas-Liquid Flows - Expanding the Toolbox for Advanced Process Equipment Design

气液流局部传质的多尺度模拟 - 扩展先进工艺设备设计的工具箱

• 批准号: RGPIN-2022-03189
• 负责人: Haelssig, Jan
• 金额: $ 1.64万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763617
• 关键词: Multiscale; Simulation; Local; Mass; Transfer

Computational fluid dynamics enables the detailed study of fluid dynamics, heat transfer, mass transfer, and reactions in industrial processes. In fact, in many cases, detailed simulation is the only feasible method to gather local-scale information about the rate-limiting steps in such processes because experimental methods may be either unavailable, too complex, or too expensive. Consequently, computational fluid dynamics methods have become an important tool for the analysis, optimization, design, and development of innovative intensified process technologies for a wide range of applications. However, despite significant advances in recent years, it is still very difficult to accurately simulate gas-liquid flows that involve complex geometries with a wide range of length scales, complex operating conditions, transitions between flow regimes, and/or strong coupling between transport processes. Addressing these deficiencies in currently available simulation tools will facilitate the development of better engineered systems and more efficient process technologies, which will lead to safer operation, reduced waste production, and decreased energy usage in many industry sectors including renewable fuels, chemicals, fine chemicals, and pharmaceuticals production. In this research program, we will develop new tools for the simulation of gas-liquid flows with mass transfer, heat transfer, and reactions through the study of slurry bubble column reactors that will be used for carbon dioxide methanation with renewable hydrogen to produce synthetic natural gas. Since methanation enables carbon dioxide and renewable hydrogen conversion while producing a convenient fuel that can be easily integrated into existing fuel distribution and utilization infrastructure, this research program will advance Canada's goals to reduce greenhouse gas emissions, exploit more renewable energy sources, and implement a hydrogen-based economy. Furthermore, the newly developed computational tools and advances in the fundamental understanding of gas-liquid flows provided by this research will enable future technological innovation in the process industries. Additionally, these research efforts will lead to the training of a diverse group of Highly Qualified Personnel in advanced computational techniques and experimental methods, which will support future development of Canada's knowledge-based economy, particularly in the engineering consulting and process industries.

计算流体动力学使流体动力学，传热，传质和工业过程中的反应的详细研究。事实上，在许多情况下，详细的模拟是唯一可行的方法来收集局部规模的信息，在这样的过程中的限速步骤，因为实验方法可能是不可用的，太复杂，或太昂贵。因此，计算流体动力学方法已成为分析、优化、设计和开发用于广泛应用的创新强化工艺技术的重要工具。然而，尽管近年来取得了重大进展，但仍然很难准确地模拟涉及具有宽范围长度尺度的复杂几何形状、复杂操作条件、流动状态之间的过渡和/或输送过程之间的强耦合的气液流动。解决目前可用的模拟工具中的这些缺陷将有助于开发更好的工程系统和更有效的工艺技术，这将导致更安全的操作，减少废物产生，并减少许多工业部门的能源使用，包括可再生燃料，化学品，精细化学品和药品生产。在本研究项目中，我们将开发新的工具，通过研究浆态鼓泡塔反应器，将用于二氧化碳甲烷化与可再生氢气生产合成天然气，模拟气-液流动的传质，传热和反应。由于甲烷化能够实现二氧化碳和可再生氢气的转化，同时生产出一种方便的燃料，可以很容易地集成到现有的燃料分配和利用基础设施中，因此该研究计划将推进加拿大减少温室气体排放的目标，开发更多的可再生能源，并实施氢基经济。此外，新开发的计算工具和本研究所提供的气液流动基本理解的进展将使过程工业的未来技术创新成为可能。此外，这些研究工作将导致在先进的计算技术和实验方法，这将支持加拿大的知识型经济，特别是在工程咨询和加工行业的未来发展的高素质人才的多样化组的培训。