Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling

C. Lin; C. J. Chen; C. C. Chieng; F. G. Tseng

doi:10.1109/TRANSDUCERS.2011.5969427

Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling

C. Lin^*
, C. J. Chen
, C. C. Chieng
, F. G. Tseng

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

This study proposes the hydrodynamic characteristics of droplet impingement on heated surfaces and compares the effect of surface temperature when using water on a plane and nanotextured surface. Three samples are used: plane oxidized silicon, vertical CNTs and curved CNTs. Various surface temperatures, including single-phase (non-boiling) and two-phase (boiling) conditions, are included. Droplet impact velocity, transient spreading diameter and rebounding temperature are measured. Results show that the nanotextured surface enhances the heat transfer for evaporative cooling at lower surface temperatures, which is indicated by a shorter evaporation time. In the evaporative zone, the heat flux range of 3040 W/cm², the mean heat transfer coefficient of the curved CNTs surface was approximately 140% higher than of the plane surface. © 2011 IEEE.

Original language	English
Title of host publication	2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Pages	1252-1255
DOIs	https://doi.org/10.1109/TRANSDUCERS.2011.5969427
Publication status	Published - 2011
Externally published	Yes
Event	16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China Duration: 5 Jun 2011 → 9 Jun 2011

Conference

Conference	16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Place	China
City	Beijing
Period	5/06/11 → 9/06/11

Research Keywords

curved carbon nanotubes
droplet impingement
nanotextured surface
spray cooling
two-phase

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10.1109/TRANSDUCERS.2011.5969427

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@inproceedings{2ad8aa114c6d48a9b6835873c1308dbc,

title = "Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling",

abstract = "This study proposes the hydrodynamic characteristics of droplet impingement on heated surfaces and compares the effect of surface temperature when using water on a plane and nanotextured surface. Three samples are used: plane oxidized silicon, vertical CNTs and curved CNTs. Various surface temperatures, including single-phase (non-boiling) and two-phase (boiling) conditions, are included. Droplet impact velocity, transient spreading diameter and rebounding temperature are measured. Results show that the nanotextured surface enhances the heat transfer for evaporative cooling at lower surface temperatures, which is indicated by a shorter evaporation time. In the evaporative zone, the heat flux range of 3040 W/cm2, the mean heat transfer coefficient of the curved CNTs surface was approximately 140\% higher than of the plane surface. {\textcopyright} 2011 IEEE.",

keywords = "curved carbon nanotubes, droplet impingement, nanotextured surface, spray cooling, two-phase",

author = "C. Lin and Chen, \{C. J.\} and Chieng, \{C. C.\} and Tseng, \{F. G.\}",

year = "2011",

doi = "10.1109/TRANSDUCERS.2011.5969427",

language = "English",

isbn = "9781457701573",

pages = "1252--1255",

booktitle = "2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11",

note = "16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 ; Conference date: 05-06-2011 Through 09-06-2011",

}

Lin, C, Chen, CJ, Chieng, CC & Tseng, FG 2011, Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling. in 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11., 5969427, pp. 1252-1255, 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11, Beijing, China, 5/06/11. https://doi.org/10.1109/TRANSDUCERS.2011.5969427

Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling. / Lin, C.; Chen, C. J.; Chieng, C. C. et al.
2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11. 2011. p. 1252-1255 5969427.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling

AU - Lin, C.

AU - Chen, C. J.

AU - Chieng, C. C.

AU - Tseng, F. G.

PY - 2011

Y1 - 2011

N2 - This study proposes the hydrodynamic characteristics of droplet impingement on heated surfaces and compares the effect of surface temperature when using water on a plane and nanotextured surface. Three samples are used: plane oxidized silicon, vertical CNTs and curved CNTs. Various surface temperatures, including single-phase (non-boiling) and two-phase (boiling) conditions, are included. Droplet impact velocity, transient spreading diameter and rebounding temperature are measured. Results show that the nanotextured surface enhances the heat transfer for evaporative cooling at lower surface temperatures, which is indicated by a shorter evaporation time. In the evaporative zone, the heat flux range of 3040 W/cm2, the mean heat transfer coefficient of the curved CNTs surface was approximately 140% higher than of the plane surface. © 2011 IEEE.

AB - This study proposes the hydrodynamic characteristics of droplet impingement on heated surfaces and compares the effect of surface temperature when using water on a plane and nanotextured surface. Three samples are used: plane oxidized silicon, vertical CNTs and curved CNTs. Various surface temperatures, including single-phase (non-boiling) and two-phase (boiling) conditions, are included. Droplet impact velocity, transient spreading diameter and rebounding temperature are measured. Results show that the nanotextured surface enhances the heat transfer for evaporative cooling at lower surface temperatures, which is indicated by a shorter evaporation time. In the evaporative zone, the heat flux range of 3040 W/cm2, the mean heat transfer coefficient of the curved CNTs surface was approximately 140% higher than of the plane surface. © 2011 IEEE.

KW - curved carbon nanotubes

KW - droplet impingement

KW - nanotextured surface

KW - spray cooling

KW - two-phase

UR - https://www.scopus.com/pages/publications/80052121394

UR - https://www.scopus.com/pages/publications/80052121394#tab=impact

U2 - 10.1109/TRANSDUCERS.2011.5969427

DO - 10.1109/TRANSDUCERS.2011.5969427

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781457701573

SP - 1252

EP - 1255

BT - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

T2 - 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

Y2 - 5 June 2011 through 9 June 2011

ER -

Dynamic effects of droplet impingement on nanotextured surface for high efficient spray cooling

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