Pool Boiling Heat Transfer Enhancement through Biphilic Stepped Microchannel-Reference-Cited by-同舟云学术

Pool Boiling Heat Transfer Enhancement through Biphilic Stepped Microchannel

Published:2023-07-12 Issue: Volume:2 Page:8-17
ISSN:2945-0519
Container-title:International Journal of Chemical Engineering and Materials
language:en
Short-container-title:

Author:

Walunj Avdhoot¹,Sathyabhama A.²

Affiliation:

1. Dr. A. S. College of Agril. Engineering & Technology, Mahatma Phule Krishi Vidyapeeth, Rahuri413722, INDIA

2. National Institute of Technology Karnataka, Surathkal-575025, INDIA

Abstract

In present study, pool boiling heat transfer (PBHT) from biphilic stepped microchannel comprising: hydrophobic fin top and hydrophilic channel region is investigated. The biphilic stepped microchannel is prepared by mechanical polishing and thermo-catalytic etching. The improved liquid supply pattern, increased nucleation site density, retarded bubble coalescence between the adjacent channel and decreased wall forces acting on the bubble meniscus resulted in the PBHT enhancement. Contact angle of the water droplet on hydrophobic and hydrophilic surface is 74.02° and 22.5°, respectively. Enhancement in critical heat flux and heat transfer coefficient by the biphilic stepped microchannel is 195.52% and 367.00%, respectively.

Publisher

World Scientific and Engineering Academy and Society (WSEAS)

Reference24 articles.

1. Z. G. Xu and C. Y. Zhao, “Influences of nanoparticles on pool boiling heat transfer in porous metals,” Appl. Therm. Eng., vol. 65, no. 1–2, pp. 34–41, 2014.

2. C. Leng, X. D. Wang, and T. H. Wang, “An improved design of double-layered microchannel heat sink with truncated top channels,” Appl. Therm. Eng., vol. 79, pp. 54– 62, 2015.

3. S. H. Bhavnani, G. Fournelle, and R. C. Jaeger, “Immersion-cooled heat sinks for electronics: Insight from high-speed photography,” IEEE Trans. Components Packag. Technol., vol. 24, no. 2, pp. 166–176, 2001.

4. H. Yeom, K. Sridharan, and M. L. Corradini, “Bubble Dynamics in Pool Boiling on Nanoparticle-Coated Surfaces,” Heat Transf. Eng., vol. 36, no. 12, pp. 1013–1027, 2015.

5. B. J. Zhang, J. Park, and K. J. Kim, “Augmented boiling heat transfer on the wetting-modified three dimensionallyinterconnected alumina nano porous surfaces in aqueous polymeric surfactants,” Int. J. Heat Mass Transf., vol. 63, 2013.