Entropy Based Design and Convective Heat Transfer in Multiphase Flows

基于熵的设计和多相流中的对流传热

• 批准号: RGPIN-2015-05652
• 负责人: Naterer, Greg
• 金额: $ 2.48万
• 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: 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=590559
• 关键词: Entropy; Based; Design; Convective; Heat

Driven by the increasing need to improve energy efficiency of thermal / fluid systems and reduce greenhouse gas emissions, researchers are utilizing entropy based design as an emerging tool to identify and minimize system flow losses. The use of the Second Law of Thermodynamics has been well established for system analysis, however to a much lesser extent for spatially tracking the local rates of entropy production throughout a flow field. In particular, entropy transport in multiphase flows has a significant potential to highlight new ways to improve energy conversion and efficiency. This research proposal examines convective heat and entropy transport processes in multiphase flows with droplets and particles. Both numerical and experimental studies are proposed to better understand the transport phenomena. Applications to two specific multiphase systems are examined: thermochemical hydrogen production with a copper-chlorine (Cu-Cl) cycle, and droplet impact on icing surfaces.

由于对提高热/流体系统的能源效率和减少温室气体排放的需求日益增加，研究人员正在利用基于熵的设计作为一种新兴工具来识别和最大限度地减少系统流量损失。热力学第二定律的使用已经很好地建立了系统分析，但在空间上跟踪整个流场的局部熵产生率的程度要小得多。特别是，多相流中的熵输运具有突出提高能量转化和效率的新方法的巨大潜力。本研究计画探讨液滴与颗粒在多相流中的对流热与熵输运过程。数值和实验研究提出了更好地理解的传输现象。两个特定的多相系统的应用程序进行检查：热化学制氢与铜-氯（Cu-Cl）循环，和液滴的影响结冰表面。