A Computational Fluid Dynamics Study on the Effect of Carbon Particle Seeding for the Improvement of Solar Reactor Performance

被引：17

作者：

Ozalp, Nesrin ^{[1
]}

Kanjirakat, Anoop ^{[2
]}

机构：

[1] Texas A&M Univ Qatar, Dept Mech Engn, Doha, Qatar

[2] Texas A&M Univ Qatar, MEEN Res, Doha, Qatar

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 12期

关键词：

computational flow dynamics; solar reactor; carbon seeding; solar cracking; hydrogen; CHEMICAL REACTOR; HYDROGEN-PRODUCTION; THERMAL-DECOMPOSITION; HEAT-TRANSFER; METHANE; DISSOCIATION; SIMULATION; DESIGN;

D O I：

10.1115/1.4002173

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study focuses on a technique, referred to as "solar cracking" of natural gas for the coproduction of hydrogen and carbon as byproduct with zero emission footprint. Seeding a solar reactor with micron-sized carbon particles increases the conversion efficiency drastically due to the radiation absorbed by the carbon particles and additional nucleation sites formed by carbon particles for heterogeneous decomposition reaction. The present study numerically tries to investigate the above fact by tracking carbon particles in a Lagrangian framework. The results on the effect of particle loading, particle emissivity, injection point location, and effect of using different window screening gases on a flow and temperature distribution inside a confined tornado flow reactor are presented. [DOI: 10.1115/1.4002173]

引用

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