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

Shalabh C. Maroo

doi:10.1115/HT2012-58354

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

Shalabh C. Maroo

Department of Mechanical & Aerospace Engineering

Research output: Chapter in Book/Entry/Poem › Conference 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 language	English (US)
Title of host publication	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
Pages	589-594
Number of pages	6
DOIs	https://doi.org/10.1115/HT2012-58354
State	Published - 2012
Event	ASME 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 2012 → Jul 12 2012

Publication series

Name	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
Volume	1

Other

Other	ASME 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
Country/Territory	Puerto Rico
City	Rio Grande
Period	7/8/12 → 7/12/12

ASJC Scopus subject areas

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

Access to Document

10.1115/HT2012-58354

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

Molecular simulation of pulse heating in nano-heater array and the effect on meniscus evaporation. / Maroo, Shalabh C.
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. 2012. p. 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).

Research output: Chapter in Book/Entry/Poem › Conference contribution

Maroo, SC 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. 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, pp. 589-594, ASME 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, 7/8/12. https://doi.org/10.1115/HT2012-58354

Maroo SC. 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. 2012. p. 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). doi: 10.1115/HT2012-58354

Maroo, Shalabh C. / Molecular simulation of pulse heating in nano-heater array and the effect on meniscus evaporation. 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. 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).

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

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.",

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doi = "10.1115/HT2012-58354",

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note = "ASME 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 ; Conference date: 08-07-2012 Through 12-07-2012",

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AB - 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.

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

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