Molecular simulation of pulse heating in nano-heater array and the effect on meniscus evaporation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Evaporation of a nanoscale meniscus on a nano-heater array surface via pulsed heating is simulated using molecular dynamics. The nano-heaters, each of width 2.56 nm, are evenly spaced on the 28.22 nm wide surface. The temperature of the nano-heaters is increased for a short time period in regular intervals to mimic pulse heating. The simulation results show that the non-evaporating film breaks during the early stages of evaporation due to the pulse heating (unlike a previous simulation performed in absence of pulse heating where non-evaporating film forms). Thus, heat transfer rates can be significantly increased during bubble nucleation and growth by using nano-heater arrays with pulsed heating as it breaks the formation of non-evaporating film allowing the surrounding cooler liquid to come in contact with the surface enhancing heat transfer.

Original languageEnglish (US)
Title of host publicationASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Pages589-594
Number of pages6
DOIs
StatePublished - Dec 1 2012
EventASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 - Rio Grande, Puerto Rico
Duration: Jul 8 2012Jul 12 2012

Publication series

NameASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Volume1

Other

OtherASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
CountryPuerto Rico
CityRio Grande
Period7/8/127/12/12

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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  • Cite this

    Maroo, S. C. (2012). Molecular simulation of pulse heating in nano-heater array and the effect on meniscus evaporation. In ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 (pp. 589-594). (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012; Vol. 1). https://doi.org/10.1115/HT2012-58354