Estimation of radiative properties and temperature distributions in coal-fired boiler furnaces by a portable image processing system
Abstract
This paper presented an experimental investigation on the estimation of radiative properties and temperature distributions in a 670 t/h coal-fired boiler furnace by a portable imaging processing system. The portable system has been calibrated by a blackbody furnace. Flame temperatures and emissivities were measured by the portable system and equivalent blackbody temperatures were deduced. Comparing the equivalent blackbody temperatures measured by the portable system and the infrared pyrometer, the relative difference is less than 4%. The reconstructed pseudo-instantaneous 2-D temperature distributions in two cross-sections can disclose the combustion status inside the furnace. The measured radiative properties of particles in the furnace proved there is significant scattering in coal-fired boiler furnaces and it can provide useful information for the calculation of radiative heat transfer and numerical simulation of combustion in coal-fired boiler furnaces. The preliminary experimental results show this technology will be helpful for the combustion diagnosis in coal-fired boiler furnaces. (author)
- Authors:
-
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, 430074 Hubei (China)
- Publication Date:
- OSTI Identifier:
- 21401350
- Resource Type:
- Journal Article
- Journal Name:
- Experimental Thermal and Fluid Science
- Additional Journal Information:
- Journal Volume: 35; Journal Issue: 2; Other Information: Elsevier Ltd. All rights reserved; Journal ID: ISSN 0894-1777
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 01 COAL, LIGNITE, AND PEAT; COAL; COMBUSTION; IMAGE PROCESSING; FURNACES; BOILERS; FLAMES; TEMPERATURE DISTRIBUTION; EMISSIVITY; COMPUTERIZED SIMULATION; HEAT TRANSFER; PYROMETERS; COMBUSTION PROPERTIES; PARTICLES; SCATTERING; Radiative properties
Citation Formats
Li, Wenhao, Lou, Chun, Sun, Yipeng, and Zhou, Huaichun. Estimation of radiative properties and temperature distributions in coal-fired boiler furnaces by a portable image processing system. United States: N. p., 2011.
Web. doi:10.1016/J.EXPTHERMFLUSCI.2010.10.005.
Li, Wenhao, Lou, Chun, Sun, Yipeng, & Zhou, Huaichun. Estimation of radiative properties and temperature distributions in coal-fired boiler furnaces by a portable image processing system. United States. https://doi.org/10.1016/J.EXPTHERMFLUSCI.2010.10.005
Li, Wenhao, Lou, Chun, Sun, Yipeng, and Zhou, Huaichun. 2011.
"Estimation of radiative properties and temperature distributions in coal-fired boiler furnaces by a portable image processing system". United States. https://doi.org/10.1016/J.EXPTHERMFLUSCI.2010.10.005.
@article{osti_21401350,
title = {Estimation of radiative properties and temperature distributions in coal-fired boiler furnaces by a portable image processing system},
author = {Li, Wenhao and Lou, Chun and Sun, Yipeng and Zhou, Huaichun},
abstractNote = {This paper presented an experimental investigation on the estimation of radiative properties and temperature distributions in a 670 t/h coal-fired boiler furnace by a portable imaging processing system. The portable system has been calibrated by a blackbody furnace. Flame temperatures and emissivities were measured by the portable system and equivalent blackbody temperatures were deduced. Comparing the equivalent blackbody temperatures measured by the portable system and the infrared pyrometer, the relative difference is less than 4%. The reconstructed pseudo-instantaneous 2-D temperature distributions in two cross-sections can disclose the combustion status inside the furnace. The measured radiative properties of particles in the furnace proved there is significant scattering in coal-fired boiler furnaces and it can provide useful information for the calculation of radiative heat transfer and numerical simulation of combustion in coal-fired boiler furnaces. The preliminary experimental results show this technology will be helpful for the combustion diagnosis in coal-fired boiler furnaces. (author)},
doi = {10.1016/J.EXPTHERMFLUSCI.2010.10.005},
url = {https://www.osti.gov/biblio/21401350},
journal = {Experimental Thermal and Fluid Science},
issn = {0894-1777},
number = 2,
volume = 35,
place = {United States},
year = {Tue Feb 15 00:00:00 EST 2011},
month = {Tue Feb 15 00:00:00 EST 2011}
}