Experimental Study Of Lpg Diffusion Flame At Elevated Preheated Air Temperatures

Amer, Amer; Gad, H.M.; Ibrahim, Idris; Abdel-Mageed, Sayed; Farag, T.M.

doi:10.5281/zenodo.1108072

Cited by 2 publications

(2 citation statements)

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“…In the present work, the temperatures of the flame were measured using a bare wire water-cooled thermocouple type B (Platinum Rhodium -30% Platinum Rhodium -6%). The thermocouple is introduced radially through the measuring ports arranged along with the traverse mechanism and moved with a radial increment of 10 mm as described in [21][22][23][24]. Temperature maps could be drawn under different operating conditions with the help of MS Excel for this purpose.…”

Section: Temperature Patternsmentioning

confidence: 99%

Experimental Study of Gaseous Fuel Inverse Diffusion Flame

Abdelrahman

2024

Journal of Advanced Engineering Trends

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The main aim of the present work is studying the effects of swirl number and equivalence ratio on the combustion characteristics of liquefied petroleum gas (LPG) for normal diffusion flame (the NDF) and inverse diffusion flame (the IDF). The effects of different swirl numbers of 0.5, 0.75,1.0, and 1.5 are studied at an equivalence ratio of 1.0. In addition, the effect of different equivalence ratios of 0.75, 1.0, 1.5, and 2.0 at a swirl number of 0.5 were studied. The flame shape, visible flame length, temperature distributions and species concentrations were measured. To study the above parameters, a test rig that consists of an air supply line, a fuel supply line, and a burner head was designed and constructed. The results showed that, by increasing the swirl number, the visible flame length is decreased for the IDF and the NDF. Moreover, by increasing the equivalence ratio Φ, the visible flame length, for the IDF, was increased by about 39%, 91%, 108%, and 620% for air swirl number 0.5, 0.75, 1.0 and 1.5, respectively. However, the maximum temperature decreased. It was, also, found that the concentrations of NO, CO 2 and CO were increased until reach their maximum value. While the concentrations of O 2 were decreased. The maximum value of the NO for the IDF is found to be 35 ppm, while for the NDF is 245 ppm. In addition, it was found that the IDF emitted less CO and NO than the NDF did. Therefore, it is more suitable for environmental preservation.

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Section: Temperature Patternsmentioning

confidence: 99%

Experimental Study of Gaseous Fuel Inverse Diffusion Flame

Abdelrahman

2024

Journal of Advanced Engineering Trends

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“…In the present work, the local mean temperature is measured using thermocouple. The used thermocouple is type R which consists of a Platinum-Platinum / Rhodium (13 %) bare wire thermocouple [19][20]. The used thermocouple of wire of 0.3 mm diameter.…”

Section: Temperatures Patternsmentioning

confidence: 99%

Combustion Characteristics for Assisted Air Pressure Swirl Atomizer

Gad,

Baraya,

Messiha

et al. 2024

Journal of Advanced Engineering Trends

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The present study is focused on studying the combustion characteristics of the modified pressureswirl atomizers (PSA) to operate as air assist pressure swirl atomizer (AAPSA) under different operating conditions and different sizes of the atomizer swirl passage (width x depth). The new design of the atomizer is considered to operate either as pressure swirl or air assist atomizers. The operating condition studied are air to fuel mass ratio which changed as 27, 37, 52 and 65, assist air mass flow rate which varied as 3, 4, 5 and 7.5 g/s, the input thermal load which changed as 27, 44, 60, and 80 kW. The atomizer swirl passages sizes are varied as 1x1, 1.5x1.5, 2x2 and 2.5x2.5 mm 2 . Combustion test rig is designed and manufactured to investigate the effects of the above parameters on the combustion characteristics. The temperatures maps, dimensionless visible flame length and combustion species concentrations along the combustor are measured and presented using commercial diesel oil as fuel. The results indicate that, by increasing the swirl passage size, the high temperatures region size increased, the visible flame length increased, CO and O 2 concentrations increased, while NO and CO 2 concentrations decreased. The axial NO concentrations trend is matched with the axial flame temperature profile. The flame length increased by increasing assist air mass flow rate, thermal load, swirl passage size and by decreasing the air to fuel ratio.

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Experimental Study Of Lpg Diffusion Flame At Elevated Preheated Air Temperatures

Cited by 2 publications

References 0 publications

Experimental Study of Gaseous Fuel Inverse Diffusion Flame

Experimental Study of Gaseous Fuel Inverse Diffusion Flame

Combustion Characteristics for Assisted Air Pressure Swirl Atomizer

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