Heat transfer enhancement in dense suspensions of agitated solids. Part II: Experiments in the exchange limit

✍ Scribed by Xinglong Chen; Michel Louge

• Book ID: 103831670
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 383 KB
• Volume: 51
• Category: Article
• ISSN: 0017-9310
• DOI: 10.1016/j.ijheatmasstransfer.2008.04.064

✦ Synopsis

We test the theory of Part I in the exchange limit by vibrating acrylic and aluminum spheres in a box consisting of two flat, vertical isothermal walls, two bumpy, horizontal, insulated walls, and two flat vertical insulated surfaces. The steady heat flux through the thermally-guarded hot wall is recorded at different temperatures of the opposite wall cooled by thermoelectric modules, and enhancements of suspension conductivity are calculated using a lumped-parameter model of the box. To compare results and theory, we also predict vertical profiles of agitation and solid volume fraction in the box using granular dynamics.