Affiliation:
1. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
Abstract
We perform a constructal design of nanofluid particle volume fraction for four heat-conduction systems and four types of nanofluids to address whether nanofluids with uniformly-dispersed particles always offer the optimal global performance. The constructal volume fraction is obtained to minimize the system overall temperature difference and overall thermal resistance. The constructal thermal resistance is an overall property fixed only by the system global geometry and the average thermal conductivity of nanofluids used in the system. Efforts to enhance the thermal conductivity of nanofluids are important to reduce the constructal overall thermal resistance. The constructal nanofluids that maximize the system performance depend on both the type of nanofluids and the system configuration, and are always having a nonuniform particle volume fraction for all the cases studied in the present work. Nanofluids research and development should thus focus on not only nanofluids but also systems that use them.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,General Materials Science
Reference12 articles.
1. S. U. S. Choi, Z. G. Zhang and P. Keblinski, Encyclopedia of Nanoscience and Nanotechnology 6, ed. H. S. Nalwa (American Scientific Publishers, New York, 2004) p. 757.
2. Heat and Mass Transfer in Fluids with Nanoparticle Suspensions
3. Critical Issues in Nanofluids Preparation, Characterization and Thermal Conductivity
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献