INVESTIGATION OF SWIRL NUMBER AND EXHAUST GAS RECIRCULATION IMPACT IN NUMERICAL SIMULATION OF COMMON DUAL FUEL POWER PLANT BURNER

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MOHAMMADIAN ESFAHANI EHSAN; MAZAHERI KIUMARS; PASDARSHAHRI HADI

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Journal: FUEL AND COMBUSTION Year:2017 | Volume:10 | Issue:1 Page(s): 25-45

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Title

INVESTIGATION OF SWIRL NUMBER AND EXHAUST GAS RECIRCULATION IMPACT IN NUMERICAL SIMULATION OF COMMON DUAL FUEL POWER PLANT BURNER

Author(s)

MOHAMMADIAN ESFAHANI EHSAN | MAZAHERI KIUMARS | PASDARSHAHRI HADI | Issue Writer Certificate

Keywords

DUAL FUEL BURNERQ1

SWIRL NUMBERQ1

NUMERICAL SIMULATIONQ2

NOX EMISSIONQ1

Abstract

The purpose of this study is to investigate the impacts of SWIRL NUMBER and exhaust gas recirculation (EGR) to access better combustion, in a power plant burner. For this purpose, the dual fuel power plant burner DDZ-G12 in a wall fired boiler, has been chosen as case study. In order to validate the results, two benchmark problems were solved using two developed solvers. The numerical results were compared with experiments and the reliable models to simulate turbulent flow and non- premixed combustion were selected. Firstly, the role of primary air SWIRL NUMBER was evaluated considering that high temperature is one of the main challenges of these types of burners. The results show that reducing the SWIRL NUMBER from 0.8 to 0.48, causes the temperature to reduce 423K at the burner tip as well as 34.88 percent reduction in NOX EMISSIONs. The results of EGR show that recirculating 30 percent of the exhaust gas leads to 360K reduction in the temperature on the burner tip and 69.43 percent reduction in NOX EMISSION. The results of EGR also show that recirculating the exhaust gases leads to widening of the flame. This leads to a more uniform temperature, but on the other hand increases the probability of flame impingement on the walls.

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APA: Copy

MOHAMMADIAN ESFAHANI, EHSAN, MAZAHERI, KIUMARS, & PASDARSHAHRI, HADI. (2017). INVESTIGATION OF SWIRL NUMBER AND EXHAUST GAS RECIRCULATION IMPACT IN NUMERICAL SIMULATION OF COMMON DUAL FUEL POWER PLANT BURNER. FUEL AND COMBUSTION, 10(1 ), 25-45. SID. https://sid.ir/paper/138569/en

Vancouver: Copy

MOHAMMADIAN ESFAHANI EHSAN, MAZAHERI KIUMARS, PASDARSHAHRI HADI. INVESTIGATION OF SWIRL NUMBER AND EXHAUST GAS RECIRCULATION IMPACT IN NUMERICAL SIMULATION OF COMMON DUAL FUEL POWER PLANT BURNER. FUEL AND COMBUSTION[Internet]. 2017;10(1 ):25-45. Available from: https://sid.ir/paper/138569/en

IEEE: Copy

EHSAN MOHAMMADIAN ESFAHANI, KIUMARS MAZAHERI, and HADI PASDARSHAHRI, “INVESTIGATION OF SWIRL NUMBER AND EXHAUST GAS RECIRCULATION IMPACT IN NUMERICAL SIMULATION OF COMMON DUAL FUEL POWER PLANT BURNER,” FUEL AND COMBUSTION, vol. 10, no. 1 , pp. 25–45, 2017, [Online]. Available: https://sid.ir/paper/138569/en

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