Superwetting surfaces for diminishing leidenfrost effect, methods of making and devices incorporating the same

US8983019B2 · kind B2 · utility

Assignee

• Massachusetts Institute of Technology · US

Inventors

• Kripa K. Varanasi · Lexington, US
• Jonathan David Smith · Cambridge, US
• Adam T. Paxson · Cambridge, US
• Christopher J. Love · Atlantis, US
• Hyukmin Kwon · Cambridge, US
• Dieter B. Brommer · Cambridge, US

Key dates

• Filing date: Aug 31, 2010
• Grant date: Mar 17, 2015
• Expiry date: Jan 6, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E30/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Textured surface for increasing Leidenfrost temperature. The texture comprises of surface features over multiple length scales—from micro to nanoscale—wherein the features at each length scale have a size, aspect ratio, and spacing selected to increase the Leidenfrost temperature. The structure includes an array of microscale structures disposed on the surface, the structure having size, aspect ratio and spacing selected to increase Leidenfrost temperature. The microscale structures may also include nanoscale structures on their surface to create a hierarchical structure. The structures result in an increased Leidenfrost temperature.