Abstract
A novel technique for enhancing and controlling local heat transfer coefficients from the hot wall to the cooling gas flow using soft magnetic solid particles has been proposed in order to eliminate the disadvantages of inefficient gas-solid two-phase flow. The characteristics of the flow and local heat transfer were examined in a vertical rectangular channel flow involving ferrite particles of 145 μm in diameter. The Reynolds number of the channel flow was set at approximately 104 and the particle mass loading ratio was varied up to 1.6. The result indicated 60 percent enhancement of heat transfer downstream from the location of the magnet at a mass loading ratio of about 1.6. Further enhancement in heat transfer is provided by increasing the particle mass loading ratio and the magnetic field intensity. The mechanism of heat transfer enhancement can be clarified by considering the increase in the local heat capacity near the heated plate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
