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Journal of Enhanced Heat Transfer
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ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v17.i4.50
pages 343-352

Effects of Nanoparticle Parameters on Thermal Performance of the Evaporator in a Small Capillary Pumped Loop Using Nanofluid

Lun-Chun Lv
School of Mechanical and Power Engineering, Shanghai Jiaotong University
Zhenhua Liu
Shanghai Jiao Tong University, 800 Dong Chuan Rd. Minhang District, Shanghai 200240, China

RÉSUMÉ

An experimental study was carried out to understand the effects of the nanoparticle parameters on the thermal performance of the evaporator in a capillary pumped loop (CPL) with nanofluid as the working fluid. The study focused on the influence of the nanoparticles mass concentration, the nanoparticle type, and the nanoparticle size on the heat transfer coefficient of the evaporator and the maximum heat flux. The experimental results indicated that the thermal performance of the evaporator in the CPL is improved with the addition of nanoparticles. There exists an optimal nanoparticles mass concentration corresponding to the maximum heat transfer enhancement. And the optimal nanoparticles mass concentrations are 1.0% and 0.5% for Cu nanofluid and CuO nanofluid, respectively. The nanoparticle type and the nanoparticle size influence the thermal performance of the CPL. The maximum heat flux is increased with the addition of nanoparticles in the working liquid.


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