Condensation heat transfer and pressure drop characteristics of R-134a in horizontal smooth tubes and enhanced tubes fabricated by selective laser melting

• Main Authors: Wang, X. W., Ho, Jin Yao, Leong, Kai Choong, Wong, Teck Neng
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: R134a; Engineering::Mechanical engineering; Condensation
• Online Access: https://hdl.handle.net/10356/104480; http://hdl.handle.net/10220/50020
• Institution: Nanyang Technological University

This paper reports a study of condensation heat transfer and pressure drop of R134a inside four enhanced tubes and one plain tube fabricated by Selective Laser Melting (SLM). The results are compared to a plain commercial aluminum tube. The enhanced tubes consist of a tube with a metallic foam struc...