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Journal of Enhanced Heat Transfer

Theory and Application in High Performance Heat and Mass Transfer

ISSN for PRINT: 1065-5131

Institutional price:	$577.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2008, Volume15

83 pages

DOI: 10.1615/JEnhHeatTransf.v15.i2

Issue price - $173.00

Boiling Heat Transfer Characteristics in Small Vertical Tubes Submerged in Saturated nanoparticle Suspensions

Lun-Chun Lv
School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China

Zhen-Hua Liu
School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China

ABSTRACT

An experimental study was carried out to understand the natural convective boiling heat transfer and the critical heat flux (CHF) of water and the nanoparticle suspensions in vertical small heated tubes. The study was focused on the influence of the nanoparticle mass concentration on the boiling heat transfer and the CHF. The experimental results indicated that the boiling heat transfer of nanoparticle suspensions is better than that of water. The CHF of the nanoparticle suspension is significantly increased compared with that of water. The CHF is only related to nanoparticle mass concentration for the fixed tube length and tube diameter. An empirical correlation was proposed for predicting the CHF of nanoparticle suspensions boiling in the vertical tubes.