An experimental study of a cylindrical multi-hole premixed burner for the development of a condensing gas boiler

Lee, Seungro; Kum, Sung-Min; Lee, Chang-Eon

doi:10.1016/j.energy.2011.04.029

Cited by 39 publications

(9 citation statements)

References 15 publications

(2 reference statements)

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“…Flow of air and methane was controlled by flow meters (3) (an operating range for air and methane was 30 L/min and 10 L/min, respectively, with an error of 2% at full scale) and supplied to the premixing chamber via steel pipes. The burner was operated at different air equivalence ratios ranging from 0.8 to 1.4 in increments of 0.2 to recreate the combustion conditions used in small scale combustion systems [43,44]. The inlet parameters for fuel and air flows are given in Table 1.…”

Section: Description Of Combustion and No X Removal Systemmentioning

confidence: 99%

“…In order to analyze the efficiency of NO X removal from flue gases, experiments were performed at rich, normal and lean combustion regimes. Besides, the lean combustion was achieved at two air equivalence ratio values (1.2 and 1.4), which in most cases are used in atmospheric combustion systems [43,49]. The flame images obtained at different equivalence ratio (ER) values are presented in Figure 2.…”

Section: Emissions From Methane Combustionmentioning

confidence: 99%

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Application of Non-Thermal Plasma for NOx Reduction in the Flue Gases

et al. 2019

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Over the years, ever more stringent requirements on the pollutant emissions, especially NO X , from combustion systems burning natural gas are introduced by the European Union (EU). Among all NO X reduction methods, the flue gas treatment by plasma is widely applied and could be used for both small scale and domestic combustion systems. However, the removal efficiency depends on concentrations of oxygen, water vapor, traces of hydrocarbons, and nitrogen oxides in flue gas. In order to analyze the application of the NO X reduction for small-scale or domestic combustion systems, experiments of NO X reduction by non-thermal plasma from real flue gases originating from premixed methane combustion at different equivalence ratio (ER) values were performed. It was determined that the residual oxygen in flue gas plays an important role for improvement of NO to NO 2 oxidation efficiency when O 2 concentrations are equal to or higher than 6%. The power consumption for the plasma oxidation constituted approximately 1% of the burner power. In the case of ozone treatment, the addition of O 3 to flue gas showed even more promising results as NO formed during combustion was fully oxidized to NO 2 at all ER values.

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Section: Description Of Combustion and No X Removal Systemmentioning

confidence: 99%

Section: Emissions From Methane Combustionmentioning

confidence: 99%

Application of Non-Thermal Plasma for NOx Reduction in the Flue Gases

et al. 2019

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“…Zhang et al [8] optimized the geometry parameters of diversion plate to improve the uniformity at the outlet of gas mixing system. The hole diameters and the arrangement of a cylindrical multi-hole premixed burner were investigated by Lee et al [9]. The results showed that the NO x and CO emissions are less than 40 ppm and 30 ppm for a 0% O 2 basis, respectively.…”

Section: Introductionmentioning

confidence: 98%

Optimization of a premixed cylindrical burner for low pollutant emission

Zhao

Liu

You

et al. 2015

Energy Conversion and Management

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“…Fully premixed burners are widely used in modern household gas boilers [3,4]. To maximize the heat efficiency and reduce CO and NOx emissions, it is important to control the combustible mixture equivalence ratio at all operating conditions including the transient states.…”

Section: Introductionmentioning

confidence: 99%