Heat Transfer in Dispersed Multiphase Flows with Droplets and Particles

具有液滴和颗粒的分散多相流中的传热

• 批准号: RGPIN-2020-06227
• 负责人: Naterer, Greg
• 金额: $ 4.01万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=718269
• 关键词: Heat; Transfer; Dispersed; Multiphase; Flows

Driven by an increasing need to improve energy efficiency and reduce greenhouse gas emissions, researchers are developing faster and more accurate predictive models of thermal engineering systems. Through numerical and experimental methods, this research aims to better understand, predict and control the transport phenomena in multiphase flows with droplets and particles. Applications are focused on marine icing processes, flow assurance in subsea oil and gas pipelines, and thermochemical hydrogen production with a copperchlorine (CuCl) cycle. The objectives are to develop new design tools that provide more accurate, robust and reliable predictions and measurements of multiphase processes. Emphasis is placed on physical processes with limited current understanding in the technical literature, particularly simultaneous processes of phase change, binary constituents, chemical reactions, and turbulence. In addition to numerical modeling, the research aims to conduct experiments in the Multiphase Flow Laboratory at Memorial University to acquire measured data for model verification. This will provide exceptional learning opportunities for the training of highly qualified personnel in a research environment that is stimulating and inclusive. The proposed research aims to apply the research outcomes to hydrogen energy, icing, and flow assurance applications. These include higher thermal efficiency of unit operations in the CuCl cycle, more effective deicing of structures (ships, wind turbines and overhead power lines), and better flow assurance during hydrate formation in subsea oil and gas pipelines. Ultimately the research aims to scaleup and eventually link the CuCl cycle with Canada's next generation of nuclear reactors or other heat sources (such as solar energy or industrial waste heat) and demonstrate a CuCl pilot plant at a larger industrial scale. Clean hydrogen production by the CuCl cycle could potentially lead to a significant solution to the problem of climate change. By improving the solution accuracy and measurement of multiphase processes in these applications, new technologies can be developed to improve the energy efficiency and system performance. The research would also have a beneficial impact on other multiphase systems with droplets and particles, such as spray coatings from solidified impinging droplets, particle decomposition in fluidized beds, and production of powders and pharmaceuticals, among others.

在提高能源效率并减少温室气体排放的需求越来越多的驱动下，研究人员正在开发热工程​​系统的更快，更准确的预测模型。通过数值和实验方法，这项研究旨在更好地理解，预测和控制用液滴和颗粒中多相流中的转运现象。应用集中在海洋结冰过程，海底油和天然气管道中的流动保证以及用铜氯（CUCL）周期的热化学氢产生。这些目标是开发新的设计工具，以提供更准确，健壮和可靠的预测以及多相过程的测量。重点放在技术文献中当前理解有限的物理过程上，尤其是相变，二元成分，化学反应和湍流的同时过程。除数值模型外，该研究还旨在在纪念大学的多相流实验室中进行实验，以获取测量的数据进行模型验证。这将为在刺激和包容的研究环境中培训高素质的人员提供出色的学习机会。 拟议的研究旨在将研究结果应用于氢能，结冰和流动保证应用。这些包括在CUCL周期中单位操作的较高热效率，结构的更有效的除法（船舶，风力涡轮机和高架电源线），以及在海底油和天然气管道中水合形成期间的流动保证。最终，该研究旨在扩展并最终将CUCL周期与加拿大的下一代核反应堆或其他热源（例如太阳能或工业废物热）联系起来，并在较大的工业规模上展示了CUCL飞行员厂。 CUCL周期的清洁氢生产可能会导致对气候变化问题的重要解决方案。通过提高这些应用中多相过程的解决方案准确性和测量，可以开发新技术来提高能源效率和系统性能。该研究还将对带有液滴和颗粒的其他多相系统产生有益的影响，例如固化撞击液滴的喷涂，流化床中的颗粒分解以及粉末和药品的产生等。