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contributor authorSun, Kai
contributor authorLiu, Xiangyun
contributor authorAo, Tingyu
contributor authorLiu, Liangde
contributor authorLiang, Zhu
date accessioned2023-11-29T19:03:24Z
date available2023-11-29T19:03:24Z
date copyright7/24/2023 12:00:00 AM
date issued7/24/2023 12:00:00 AM
date issued2023-07-24
identifier issn0195-0738
identifier otherjert_145_10_104501.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4294551
description abstractThis paper studies different experimental conditions for a 25t/h industrial boiler fueled with nature gas. In the meanwhile, numerical simulation is carried out using the commercial software of fluent. The different excess air coefficients of 1.05, 1.1, 1.15, 1.2, and 1.25 are studied. The different flue gas circulation rates of 5%, 10%, 15%, and 20% are studied compared with that rate of 0. The results show that the maximum temperature of the furnace and NOx emission concentration at the outlet increase first and then decrease with increasing excess air coefficient when flue gas circulation rate is 0, and the peak value of temperature and NOx emission concentration reaches 2071.93 K and 65.21 mg/m3 when excess air coefficient is 1.15, respectively. With increasing flue gas circulation rate, the average temperature of the furnace and the concentration of NOx at the outlet decreased, and the concentration of NOx decreased from 65.21 mg/m3 to 25 mg/m3. The higher the flue gas circulation, the smaller the high-temperature area of the furnace and the lower concentration of O2. However, excessively higher flue gas circulation rate and excess air coefficient can lead to incomplete combustion and lower coefficient. Hence, for optimizing the combustion conditions, the excess air coefficient and the flue gas circulation rate should be within an appropriate range.
publisherThe American Society of Mechanical Engineers (ASME)
titleExperiment and Numerical Simulation Study of Low-Nitrogen Combustion Technology Inside Small Gas Boiler
typeJournal Paper
journal volume145
journal issue10
journal titleJournal of Energy Resources Technology
identifier doi10.1115/1.4062871
journal fristpage104501-1
journal lastpage104501-6
page6
treeJournal of Energy Resources Technology:;2023:;volume( 145 ):;issue: 010
contenttypeFulltext


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