(185j) Copper-Carbon Nanomaterial Based Composite Coatings for Dramatic Improvements in Pool Boiling Heat Transfer
AIChE Annual Meeting
Monday, November 11, 2019 - 3:30pm to 5:00pm
We have implemented coating techniques such as multi-step electrodeposition and screen printing to develop novel graphene oxide-copper (GO-Cu), carbon nanotubes-copper (CNT-Cu), and graphene nanoplatelets-copper (GNP-Cu) based composite coatings owing to higher thermal properties of copper particles. Among these different coatings, we achieved highest ever reported performance for GNP-Cu composite coatings, representing an improvement of ~130% in heat dissipation and ~290% in efficiency when compared to pristine copper heater surfaces. The enhancement in heat transfer properties is attributed to the hierarchical pores which serve as the nucleation sites and influence the overall bubble dynamics that is responsible carry the heat between liquid and vapor phases.