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.

在提高热 /流体系统能源效率并减少温室气体排放的能源效率的增加的驱动下，研究人员正在利用基于熵的设计作为新兴工具，以识别和最大程度地减少系统流量损失。用于系统分析的热力学第二定律的使用已得到很好的建立，但是在较小的程度上，在整个流场整个流场的局部熵产生速率方面的程度要小得多。特别是，多相流中的熵传输具有突出提高能量转化和效率的新方法的重要潜力。该研究建议研究了用液滴和颗粒的多相流中对流的热和熵传输过程。提出了数值和实验研究，以更好地了解运输现象。检查了两个特定多相系统的应用：具有铜氯（CU-CL）周期的热化学氢产生，以及对糖霜表面的液滴影响。