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Combustion measurements in an industrial gas-fired flat-glass furnace

Journal Article:

Abstract

Profiles of velocity, species concentration (O{sub 2}, CO and CO{sub 2}), wall incident radiative heat flux and temperature are reported in the combustion space of a regenerative, side-port, 550t/day, gas-fired flat-glass furnace. A region exists of fast-moving gases near the glass, with axial velocity components exceeding 20 m s{sup -1}, and a large recirculation zone near the crown. Temperatures as high as 1985 K in the flame and as low as 1750 K in the recirculation zone are reported. A region of intense reaction is observed near the glass, with large concentration gradients and incomplete combustion even in the tail of the flame. Local incident radiant fluxes on the crown were nearly uniform spatially at a level of 680 kW m{sup -2}. In the portnecks, flat inlet velocity profiles were measured with a magnitude of approximately 11 m s{sup -1}. Significant variations were observed in the exhaust profiles of most measured variables. Large errors in exhaust mass balance suggest a complex, three-dimensional flow with recirculation zones along the side walls of the portnecks. A nominal preheat air temperature of 1420 k and a variation of exhaust temperatures between 1630 K and 1835 K were noted. O{sub 2} concentrations as high  More>>
Authors:
Newbold, J; Webb, B W; McQuay, M Q; [1]  Huber, A M [2] 
  1. Brigham Young Univ., Provo, UT (United States). Mechanical Engineering Dept.
  2. Ford Motor Co., Glass Div., Dearborn, MI (United States)
Publication Date:
Jun 01, 1997
Product Type:
Journal Article
Reference Number:
SCA: 034000; PA: GB-97:052174; EDB-97:124026; SN: 97001853380
Resource Relation:
Journal Name: Journal of the Institute of Energy; Journal Volume: 70; Journal Issue: 483; Other Information: PBD: Jun 1997
Subject:
03 NATURAL GAS; GAS FURNACES; COMBUSTION; GLASS; FORECASTING; MEASURING METHODS
OSTI ID:
527339
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: JINEDX; ISSN 0144-2600; TRN: GB9752174
Submitting Site:
GB
Size:
pp. 71-81
Announcement Date:
Oct 10, 1997

Journal Article:

Citation Formats

Newbold, J, Webb, B W, McQuay, M Q, and Huber, A M. Combustion measurements in an industrial gas-fired flat-glass furnace. United Kingdom: N. p., 1997. Web.
Newbold, J, Webb, B W, McQuay, M Q, & Huber, A M. Combustion measurements in an industrial gas-fired flat-glass furnace. United Kingdom.
Newbold, J, Webb, B W, McQuay, M Q, and Huber, A M. 1997. "Combustion measurements in an industrial gas-fired flat-glass furnace." United Kingdom.
@misc{etde_527339,
title = {Combustion measurements in an industrial gas-fired flat-glass furnace}
author = {Newbold, J, Webb, B W, McQuay, M Q, and Huber, A M}
abstractNote = {Profiles of velocity, species concentration (O{sub 2}, CO and CO{sub 2}), wall incident radiative heat flux and temperature are reported in the combustion space of a regenerative, side-port, 550t/day, gas-fired flat-glass furnace. A region exists of fast-moving gases near the glass, with axial velocity components exceeding 20 m s{sup -1}, and a large recirculation zone near the crown. Temperatures as high as 1985 K in the flame and as low as 1750 K in the recirculation zone are reported. A region of intense reaction is observed near the glass, with large concentration gradients and incomplete combustion even in the tail of the flame. Local incident radiant fluxes on the crown were nearly uniform spatially at a level of 680 kW m{sup -2}. In the portnecks, flat inlet velocity profiles were measured with a magnitude of approximately 11 m s{sup -1}. Significant variations were observed in the exhaust profiles of most measured variables. Large errors in exhaust mass balance suggest a complex, three-dimensional flow with recirculation zones along the side walls of the portnecks. A nominal preheat air temperature of 1420 k and a variation of exhaust temperatures between 1630 K and 1835 K were noted. O{sub 2} concentrations as high as 8.4% were measured at the exit, suggesting a bypass of oxygen-rich flow around the flame. CO{sub 2} concentrations were the highest near the batch, where the glass reactions are the most intense. (Author)}
journal = {Journal of the Institute of Energy}
issue = {483}
volume = {70}
journal type = {AC}
place = {United Kingdom}
year = {1997}
month = {Jun}
}