MINIMIZATION OF THE EMISSION OF POLLUTANTS ALONG WITH MAXIMIZATION OF RADIATION FROM AN AIR-STAGED NATURAL GAS FLAME

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RASOULI MINA; MAHMOUDIMEHR JAVAD

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:7 Page(s): 207-218

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Title

MINIMIZATION OF THE EMISSION OF POLLUTANTS ALONG WITH MAXIMIZATION OF RADIATION FROM AN AIR-STAGED NATURAL GAS FLAME

Author(s)

RASOULI MINA | MAHMOUDIMEHR JAVAD | Issue Writer Certificate

Keywords

NATURAL GAS FLAMEQ1

AIR-STAGINGQ1

MULTI-OBJECTIVE OPTIMIZATIONQ1

POLLUTANTSQ2

RADIATIONQ2

Abstract

Air staging is defined as the supply of inadequate air from the primary stage to the reaction zone, and the completion of the air supply through the next stage or stages. This study is concerned with the optimization of the air staging system of a burner with two air inlets and one fuel (natural gas) inlet with the help of numerical modeling. The equivalence ratio of the primary air (with the assumption of a fixed total air mass flow rate), and the distance between the two air inlets constitute the design variables of the problem. In the previous research works, the air staging technology has been mainly employed as a method to reduce the emission of NO. However, in the current study, in addition to the emission of NO, the emissions of CO and soot, and radiative heat transfer from the flame are considered as the objective functions. The results show that increasing the level of air staging (or the equivalence ratio of the primary air) has contradictory effects on the objective functions so that, as a positive influence, it increases the radiative heat transfer from the flame and decreases the emission of NO, and as a negative effect, it increases the emission of both CO and soot. The results also indicate that when all the previously mentioned objectives are considered simultaneously, the optimal case, which is selected based on the Pareto front concept, is the case in which the primary air is about 20% of the theoretical air.

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APA: Copy

RASOULI, MINA, & MAHMOUDIMEHR, JAVAD. (2016). MINIMIZATION OF THE EMISSION OF POLLUTANTS ALONG WITH MAXIMIZATION OF RADIATION FROM AN AIR-STAGED NATURAL GAS FLAME. MODARES MECHANICAL ENGINEERING, 16(7), 207-218. SID. https://sid.ir/paper/178301/en

Vancouver: Copy

RASOULI MINA, MAHMOUDIMEHR JAVAD. MINIMIZATION OF THE EMISSION OF POLLUTANTS ALONG WITH MAXIMIZATION OF RADIATION FROM AN AIR-STAGED NATURAL GAS FLAME. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(7):207-218. Available from: https://sid.ir/paper/178301/en

IEEE: Copy

MINA RASOULI, and JAVAD MAHMOUDIMEHR, “MINIMIZATION OF THE EMISSION OF POLLUTANTS ALONG WITH MAXIMIZATION OF RADIATION FROM AN AIR-STAGED NATURAL GAS FLAME,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 7, pp. 207–218, 2016, [Online]. Available: https://sid.ir/paper/178301/en

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