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Title: Investigation of heat transfer and combustion in the advanced fluidized bed combustor (FBC). Technical progress report

Abstract

Numerical simulation on the flow patterns/the velocity profiles was conducted and predicted. The test conditions and input boundary conditions are summarized. The flow patterns of the side view/top view are predicted along with stream lines. When the flow reached to the secondary air input of the lower air injection nozzles, the flow pattern was changed from a laminar flow to a turbulent flow. The velocity profiles at various locations of the combustor chamber was predicted. The velocity at the center of the combustor is greater than that of the wall region. The velocity of the top section is also greater than that of the lower section. The swirling velocity is reduced in both directions of the wall and the center of the combustor chamber. The velocity increased from the wall region to the center region at the top section of the secondary air injectors. Numerical modeling/simulation will be continued to determine the species profiles, temperature profiles, mass fraction profiles, and heat flux and heat transfer coefficient profiles. In addition, experimental test on the hot combustor model will be conducted and analyzed to compare with the numerical simulation results.

Authors:
Publication Date:
Research Org.:
Morgan State Univ., School of Engineering, Baltimore, MD (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
663432
Report Number(s):
DOE/MT/93006-12
ON: DE98058157; TRN: AHC29818%%269
DOE Contract Number:  
FG22-93MT93006
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jan 1998
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; PROGRESS REPORT; FLUIDIZED-BED COMBUSTORS; HEAT TRANSFER; FLOW MODELS; FLUID MECHANICS; VORTEX FLOW; THEORETICAL DATA

Citation Formats

Lee, S W. Investigation of heat transfer and combustion in the advanced fluidized bed combustor (FBC). Technical progress report. United States: N. p., 1998. Web. doi:10.2172/663432.
Lee, S W. Investigation of heat transfer and combustion in the advanced fluidized bed combustor (FBC). Technical progress report. United States. https://doi.org/10.2172/663432
Lee, S W. 1998. "Investigation of heat transfer and combustion in the advanced fluidized bed combustor (FBC). Technical progress report". United States. https://doi.org/10.2172/663432. https://www.osti.gov/servlets/purl/663432.
@article{osti_663432,
title = {Investigation of heat transfer and combustion in the advanced fluidized bed combustor (FBC). Technical progress report},
author = {Lee, S W},
abstractNote = {Numerical simulation on the flow patterns/the velocity profiles was conducted and predicted. The test conditions and input boundary conditions are summarized. The flow patterns of the side view/top view are predicted along with stream lines. When the flow reached to the secondary air input of the lower air injection nozzles, the flow pattern was changed from a laminar flow to a turbulent flow. The velocity profiles at various locations of the combustor chamber was predicted. The velocity at the center of the combustor is greater than that of the wall region. The velocity of the top section is also greater than that of the lower section. The swirling velocity is reduced in both directions of the wall and the center of the combustor chamber. The velocity increased from the wall region to the center region at the top section of the secondary air injectors. Numerical modeling/simulation will be continued to determine the species profiles, temperature profiles, mass fraction profiles, and heat flux and heat transfer coefficient profiles. In addition, experimental test on the hot combustor model will be conducted and analyzed to compare with the numerical simulation results.},
doi = {10.2172/663432},
url = {https://www.osti.gov/biblio/663432}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}