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Title: Study on critical heat flux enhancement in flow boiling of SiC nano-fluids under low pressure and low flow conditions

Abstract

Critical heat flux (CHF) is the thermal limit of a phenomenon in which a phase change occurs during heating (such as bubbles forming on a metal surface used to heat water), which suddenly decreases the heat transfer efficiency, thus causing localized overheating of the heating surface. The enhancement of CHF can increase the safety margins and allow operation at higher heat fluxes; thus, it can increase the economy. A very interesting characteristics of nano-fluids is their ability to significantly enhance the CHF. nano-fluids are nano-technology-based colloidal dispersions engineered through stable suspending of nanoparticles. All experiments were performed in round tubes with an inner diameter of 0.01041 m and a length of 0.5 m under low pressure and low flow (LPLF) conditions at a fixed inlet temperature using water, 0.01 vol. % Al{sub 2}O{sub 3}/water and SiC/water nano-fluids. It was found that the CHF of the nano-fluids was enhanced and the CHF of the SiC/water nano-fluid was more enhanced than that of the Al{sub 2}O{sub 3}/water nano-fluid. (authors)

Authors:
; ; ; ;  [1];  [2];  [1]
  1. Ulsan National Inst. of Science and Technology UNIST, 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulasn Metropolitan City, 689-798 (Korea, Republic of)
  2. Korea Atomic Energy Research Inst. (KAERI), Deokjin-dong, Yuseong-gu, Daejeon, 305-600 (Korea, Republic of)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22107838
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 18 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 22 GENERAL STUDIES OF NUCLEAR REACTORS; ALUMINIUM OXIDES; BOILING; BUBBLES; CRITICAL HEAT FLUX; FLUID FLOW; FLUIDS; HEAT; HEAT TRANSFER; HEATING; NANOSTRUCTURES; NUCLEAR POWER PLANTS; SAFETY MARGINS; SILICON CARBIDES; WATER

Citation Formats

Lee, S. W., Park, S. D., Kang, S., Kim, S. M., Seo, H., Lee, D. W., and Bang, I. C. Study on critical heat flux enhancement in flow boiling of SiC nano-fluids under low pressure and low flow conditions. United States: N. p., 2012. Web.
Lee, S. W., Park, S. D., Kang, S., Kim, S. M., Seo, H., Lee, D. W., & Bang, I. C. Study on critical heat flux enhancement in flow boiling of SiC nano-fluids under low pressure and low flow conditions. United States.
Lee, S. W., Park, S. D., Kang, S., Kim, S. M., Seo, H., Lee, D. W., and Bang, I. C. Sun . "Study on critical heat flux enhancement in flow boiling of SiC nano-fluids under low pressure and low flow conditions". United States.
@article{osti_22107838,
title = {Study on critical heat flux enhancement in flow boiling of SiC nano-fluids under low pressure and low flow conditions},
author = {Lee, S. W. and Park, S. D. and Kang, S. and Kim, S. M. and Seo, H. and Lee, D. W. and Bang, I. C.},
abstractNote = {Critical heat flux (CHF) is the thermal limit of a phenomenon in which a phase change occurs during heating (such as bubbles forming on a metal surface used to heat water), which suddenly decreases the heat transfer efficiency, thus causing localized overheating of the heating surface. The enhancement of CHF can increase the safety margins and allow operation at higher heat fluxes; thus, it can increase the economy. A very interesting characteristics of nano-fluids is their ability to significantly enhance the CHF. nano-fluids are nano-technology-based colloidal dispersions engineered through stable suspending of nanoparticles. All experiments were performed in round tubes with an inner diameter of 0.01041 m and a length of 0.5 m under low pressure and low flow (LPLF) conditions at a fixed inlet temperature using water, 0.01 vol. % Al{sub 2}O{sub 3}/water and SiC/water nano-fluids. It was found that the CHF of the nano-fluids was enhanced and the CHF of the SiC/water nano-fluid was more enhanced than that of the Al{sub 2}O{sub 3}/water nano-fluid. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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