NUMERICAL STUDY OF BLUFF BODY EFFECT IN LEAN PREMIX HYDROGEN/AIR COMBUSTION INA MICRO - SCALE COMBUSTOR

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SABERI MOGHADDAM MOHAMMAD HOSSEIN; MAZAHERI KIUMARS; ALIPOOR ALIREZA

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:13 Page(s): 86-94

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Title

NUMERICAL STUDY OF BLUFF BODY EFFECT IN LEAN PREMIX HYDROGEN/AIR COMBUSTION INA MICRO - SCALE COMBUSTOR

Author(s)

SABERI MOGHADDAM MOHAMMAD HOSSEIN | MAZAHERI KIUMARS | ALIPOOR ALIREZA | Issue Writer Certificate

Keywords

COMBUSTION IN SMALL SCALEQ2

NUMERICAL SIMULATIONQ2

BLUFF BODYQ2

OUTER WALL TEMPERATUREQ2

Abstract

The present numerical study investigates the effect of a BLUFF BODY on OUTER WALL TEMPERATURE in micro scale combustor. Combustion of lean premixed hydrogen-air mixture is simulated in two dimensions domain utilizing the detailed chemistry of Li et al. (13 species with 19 chemical reactions) and different mass diffusivity for each species. The effect of BLUFF BODY in combustor is studied in two viewpoints: shape of BLUFF BODY and number of bluff bodies. Two shapes of BLUFF BODY including square and triangular shape are considered to study the combustion efficiency and OUTER WALL TEMPERATURE. The results illustrate that the shape of BLUFF BODY does not have an obvious effect on OUTER WALL TEMPERATURE so triangular shape OUTER WALL TEMPERATURE is slightly higher than square shape. However combustion efficiency of the square BLUFF BODY is larger than the triangular one. In the second part, the effect of BLUFF BODY number (i.e. one, two and four bluff bodies) in micro scale combustor is examined on combustion characteristics. With the increasing number of bluff bodies, the OUTER WALL TEMPERATURE increases. This is because of the creation of a uniform temperature field in micro scale combustor.

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APA: Copy

SABERI MOGHADDAM, MOHAMMAD HOSSEIN, MAZAHERI, KIUMARS, & ALIPOOR, ALIREZA. (2015). NUMERICAL STUDY OF BLUFF BODY EFFECT IN LEAN PREMIX HYDROGEN/AIR COMBUSTION INA MICRO - SCALE COMBUSTOR. MODARES MECHANICAL ENGINEERING, 14(13), 86-94. SID. https://sid.ir/paper/179694/en

Vancouver: Copy

SABERI MOGHADDAM MOHAMMAD HOSSEIN, MAZAHERI KIUMARS, ALIPOOR ALIREZA. NUMERICAL STUDY OF BLUFF BODY EFFECT IN LEAN PREMIX HYDROGEN/AIR COMBUSTION INA MICRO - SCALE COMBUSTOR. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(13):86-94. Available from: https://sid.ir/paper/179694/en

IEEE: Copy

MOHAMMAD HOSSEIN SABERI MOGHADDAM, KIUMARS MAZAHERI, and ALIREZA ALIPOOR, “NUMERICAL STUDY OF BLUFF BODY EFFECT IN LEAN PREMIX HYDROGEN/AIR COMBUSTION INA MICRO - SCALE COMBUSTOR,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 13, pp. 86–94, 2015, [Online]. Available: https://sid.ir/paper/179694/en

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