2018
DOI: 10.1016/j.expthermflusci.2017.07.006
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Influence of the mass ratio of pulverized-coal in fuel-rich flow to that in fuel-lean flow on the gas/particle flow and particle distribution characteristics in a 600 MWe down-fired boiler

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Cited by 11 publications
(7 citation statements)
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“…As shown in Fig. 8., primary air worsens the combustion process and reduces combustion temperature beyond the optimum conditions, as reported by Song et al [39]. Fuel flow increases after surpassing 40 percent.…”
Section: Discussionmentioning
confidence: 69%
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“…As shown in Fig. 8., primary air worsens the combustion process and reduces combustion temperature beyond the optimum conditions, as reported by Song et al [39]. Fuel flow increases after surpassing 40 percent.…”
Section: Discussionmentioning
confidence: 69%
“…The primary air heater has a surface area twice as large as that of the secondary air heater. Heat transfer is significantly influenced by the ratio of primary air to secondary air [39]. In our study, we examined the distribution of primary and secondary air heaters for different ratios of total combustion air to analyze the impact of changes in the PA/SA ratio.…”
Section: Discussionmentioning
confidence: 99%
“…Presently, four main types of down-fired furnace have been developed, including the Foster Wheeler, the Babcock and Wilcox, the Mitsui Babcock Energy Limited (MBEL) and the Stein down-fired furnace, which have been summarized in other works. The main differences among them are the type of burner, the position of coal-lean and coal-rich streams and the distribution of secondary air [7], which can affect coal combustion behavior and NOx emission significantly.…”
Section: Introductionmentioning
confidence: 99%
“…Up to now, Li's group has carried out lots of systematic research on 300, 350, and 600 MWe down‐fired boilers burning inferior coals with split burners . Research contents include the mass ratio of fuel‐rich coal/air flow, factors affecting flow field deflection, over‐fire air ratio, declination angle and layout of secondary air, staged air, and over fire air. Kuang et al optimized the air ratio on and under arch for a 350‐MWe down‐fired boiler and the arrangement of burners on arch of a 600‐MWe down‐fired boiler with single‐phase cold experiments.…”
Section: Introductionmentioning
confidence: 99%