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Research Papers

The Aerodynamic Approach to Furnace Design

[+] Author and Article Information
J. H. Chesters

The United Steel Companies, Ltd., Research and Development Department, Swinden Laboratories, Moorgate, Rotherham, Yorkshire, England

J. Eng. Power 81(4), 361-369 (Oct 01, 1959) (9 pages) doi:10.1115/1.4008074 History: Received July 10, 1958; Published October 01, 1959; Online February 20, 2019

Abstract

Flow patterns and mixing in actual furnaces can be best appreciated by starting with free jets and proceeding via jets in simple envelopes to jets (cold or alight) fed with surrounding air streams and impacting on surfaces. The fuel stream in an open-hearth furnace behaves initially as a free jet, entraining the relatively low velocity air around it, but on hitting the bath it splashes and runs forward and up the side walls. The gases reaching the roof eject flux droplets and then divide, part recirculating to meet the oncoming air and part joining the main flow to the exit. Future progress requires more knowledge of droplet dynamics, and demands more symmetrical flow, control of recirculation, or radical changes.

Copyright © 1959 by ASME
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