Enhanced Boiling Surfaces

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2018-WEIB-68260
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Boiling surfaces have been trying to be improved for a while. Micro-to-macro-scale pillars to the surface, hydrophilic surface coatings, and hydrophobic surface coatings have all been added to the boiling surfaces to try and enhance them. Issues with these current solutions are low heat transfer coefficients, low heat fluxes, and inefficient boiling behavior. There is a need for a technology that can improve the efficiency of the boiling process.

Researchers at Purdue University have developed an enhanced boiling surface with high contact angle hysteresis, namely static and advancing contact angles greater than 110 degrees and receding angles less than 45 degrees. This boiling surface has improved critical heat flux which is the first technology to provide this with a single coating. These angles also help prevent vapor spreading to sustain nucleate boiling at critical heat fluxes. This enhanced boiling surface creates a more efficient boiling process.

Advantages:
-Improved critical heat flux
-Provides efficient boiling behavior
-Prevent vapor spreading

Potential Applications:
-Boiling
-Surface enhancement
-Wettability
Jun 18, 2019
Utility Patent
United States
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Jun 18, 2018
Provisional-Patent
United States
(None)
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Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org