Results 251 to 260 of about 386,307 (307)

Critical heat flux thermodynamics

Fusion Engineering and Design, 2002
Convective boiling in subcooled water flowing through a heated channel is essential in many engineering applications where high heat flux need to be accommodated, such as in the divertor plates of fusion reactors. There are many available correlations for predicting heat transfer in the individual regimes of the empirical Nukiyama boiling curve ...
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Critical Heat Flux in Tubes With Cosine Axial Heat Flux

Heat Transfer: Volume 2, 2005
In this study a method to predict CHF (Critical Heat Flux) in vertical round tubes with cosine heat flux distribution was examined. For this purpose a uniform correlation, based on local condition hypothesis, was developed from 9,366 CHF data points of uniform heat flux heaters.
W. Jaewoo Shim, Joo-Yong Park, Ji-Su Lee, Dong Kook Kim   +3 more
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Low-Flow Critical Heat Flux in Heated Microchannels

Nuclear Science and Engineering, 1999
Critical heat flux (CHF) associated with the flow of subcooled water in heated microchannels is experimentally investigated.
G. M. Roach, S. I. Abdel-Khalik, S. M. Ghiaasiaan, M. F. Dowling, S. M. Jeter   +4 more
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Critical Heat Flux in Heated Horizontal Thin Annuli

Heat Transfer: Volume 2, 2000
Abstract The objectives of the work reported here were to experimentally study the critical heat flux in a heated thin, horizontal, annular flow passage cooled by subcooled water and to examine the applicability and relevance of the current predictive methods for critical heat flux to such passages.
R. M. Stoddard, M. F. Dowling, S. I. Abdel-Khalik, S. M. Ghiaasiaan, S. M. Jeter   +4 more
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Critical heat flux in uniformly heated vertical tubes

International Journal of Heat and Mass Transfer, 1997
Abstract Experimental investigations on critical heat flux have been performed in circular tubes of different diameters ranging from 2 to 16 mm. The model fluid Freon-12 was used as working fluid due to its low latent heat, low critical pressure and well-known properties.
Cheng, X., Erbacher, F. J., Müller, U., Pang, F. G.   +3 more
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Boiling Heat Transfer and Critical Heat Flux

2016
The phase change transition phenomenon from liquid phase to gas phase is called boiling. Boiling heat transfer is a heat transfer that transfers heat from the heat transfer wall surface to the fluid accompanied with vapor bubbles or vapor slugs under the conditions where wall surface temperature and the fluid temperature adjacent to the wall surface ...
Hajime Akimoto, Yoshinari Anoda, Kazuyuki Takase, Hiroyuki Yoshida, Hidesada Tamai   +4 more
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Diameter effect on critical heat flux

Nuclear Engineering and Design, 2009
Abstract The critical heat flux look-up table (CHF LUT) is widely used to predict CHF for various applications, including design and safety analysis of nuclear reactors. Using the CHF LUT for round tubes having inside diameters different from the reference 8 mm involves conversion of CHF to 8 mm. Different authors [Becker, K.M., 1965.
A. Tanase, S.C. Cheng, D.C. Groeneveld, J.Q. Shan   +3 more
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Nano Fluids and Critical Heat Flux

ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B, 2008
In recent years nanofluids have been attracting significant attention in the heat transfer research community. These fluids are obtained by suspending nanoparticles having sizes between 1 and 100 nm in regular fluids. It was found by several researchers that the thermal conductivity of these fluids can be significantly increased when compared to the ...
Mihajlo Golubovic, H. D. Madhawa Hettiarachchi, William M. Worek   +2 more
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Critical Heat Flux in Subcooled Flow Boiling

Proceeding of International Heat Transfer Conference 11, 1998
This chapter reports a survey of recent experimental work performed to obtain parametric trends of critical heat flux (CHF) in water-subcooled flow boiling, with special concern for high liquid velocity and subcooling, small-diameter channels, and low-intermediate pressure, together with a review of current modeling analysis.
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Spreading of critical heat flux region during testing for onset of critical heat flux

Annals of Nuclear Energy, 1989
Abstract Testing to determine the conditions that result in the onset of critical heat flux when the heat flux is not uniform has been enhanced by the implementation of a computerized power control system. Detection of the temperature increase in test rods that results from the onset of critical heat flux permits termination of the test prior to ...
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