Xiaowen Wang , Maolong Liu , Rui Zhang , Tenglong Cong , Yao Xiao , Hanyang Gu
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引用次数: 0
Abstract
To address the rapid increase in energy demand, phase-change phenomena are widely utilized in high heat flux applications. The impact of fouling on the boiling is observed in most of these applications, and fouling plays an adverse role in boiling heat transfer. Due to the complex microstructure of fouling, the classification of the boiling regime within the fouling layer remains unclear. Based on the principles of pressure equilibrium, flow and energy conservation within the fouling layer, this study establishes a new model for the onset of film boiling. The maximum error of the new model is 25 %. The sensitivity analysis reveals that fouling pore size has the greatest effect on the onset of film boiling. When the maximum pore radius increases from 0.125 to 0.375 μm, the film boiling onset heat flux also increases from 0.48 to 1.16 MW/m2.
期刊介绍：
Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.
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