Research in multi-phase flow and heat transfer

多相流与传热研究

• 批准号: 4567-2007
• 负责人: Shoukri, Mamdouh
• 金额: $ 2.33万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=365478
• 关键词: Research; multi; phase; flow; heat

The proposed research is related a number of practical applications in the power and metal processing industries where the simultaneous flow of liquid and vapour is encountered, e.g. heat exchangers, refrigeration equipment and power plants. The proposed research program is concerned with developing methodologies, and understanding the underlying physics, for designing and evaluating the performance of engineering equipment involving heat transfer and fluid flow.Three particular problems are of interest. The first involves the cooling of hot surfaces in the metal processing industry. This is achieved by impinging cold liquid jets on the hot surface. An experimental apparatus is designed to carry out a range of experiments aimed at obtaining results in support the design and performance optimization of such a cooling system. The second project involves predicting the performance of industrial systems where liquid and gas flow simultaneously in large pipes. The results are relevant to the accurate prediction of the performance and safety of large-scale engineering systems encountered in power plants. The third project is concerned with increasing the effectiveness of heat exchange equipment. By applying high voltage-low current electric field to a fluid flowing in a conduit, additional fluid motion is created causing fluid mixing and as such increasing the heat transfer rate. Increasing the heat transfer rate allows the development of more compact heat exchange equipment for a variety of applications.An important aspect of the proposed research program is the training of highly qualified personnel. We expect eight graduate students and three postdoctoral fellows to be trained through the proposed program.

拟议的研究涉及电力和金属加工行业中的一些实际应用，其中遇到液体和蒸汽的同时流动，例如热交换器，制冷设备和发电厂。该研究计划涉及开发方法，并了解基本的物理，设计和评估工程设备的性能，包括传热和流体流动。三个特别的问题是感兴趣的。第一个涉及金属加工工业中热表面的冷却。这通过将冷液体射流冲击在热表面上来实现。设计了一种实验装置来进行一系列实验，旨在获得支持这种冷却系统的设计和性能优化的结果。第二个项目涉及预测工业系统的性能，其中液体和气体在大管道中同时流动。研究结果对准确预测电厂大型工程系统的性能和安全性具有重要意义。第三个项目涉及提高热交换设备的效率。通过将高电压-低电流电场施加到在导管中流动的流体，产生额外的流体运动，从而引起流体混合并因此增加传热速率。提高传热率可以开发出更紧凑的热交换设备，用于各种应用。拟议的研究计划的一个重要方面是培养高素质的人才。我们预计八名研究生和三名博士后研究员将通过拟议的计划进行培训。