Modeling of hot gas flow through a feed stream within a horizontal pipe

✍ Scribed by G.X. Hu; W. Xu; Y.Q. Liu

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 500 KB
• Volume: 32
• Category: Article
• ISSN: 1099-2871
• DOI: 10.1002/htj.10109

✦ Synopsis

Abstract

High heat penetration into a feed stream within a horizontal pipe is described mathematically with a gas flow and heat transfer model. Influences of varied factors on the gas flow and heat transfer in porous media are examined for different conditions. The temperature of the packed‐bed particles and the gas velocity distribution curves are obtained for the feeding service at interruption and at regular charge operating conditions. The numerical results show that the thermal effect to the packed‐bed particles by the seepage flow fluid is high only in the position near the gas entrance. The thermal penetration depth tends to increase with the seepage flow velocity and decrease with the feed rate. The operating conditions and the porosity of solid bed have importance effects on the gas velocity and temperature field in the thermal penetration zone. The model results are found to compare favorably with the experimental data available in the literature. © 2003 Wiley Periodicals, Inc. Heat Trans Asian Res, 32(6): 553–565, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10109