WITHDRAWN: Adiabatic premixed combustion in a gaseous fuel porous inert media under high pressure and temperature: Novel flame stabilization technique

Bakry, Ayman I.; Al‐Salaymeh, Ahmed; Abu-Jrai, A.; Al-Muhtaseb, Ala’a H.; Durst, F.

doi:10.1016/j.combustflame.2009.09.007

Cited by 1 publication

(4 citation statements)

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“…The first part was fabricated in the form of a cone with a divergence angle of 30°, which is less than its counterpart used in the gas burner by 10°. A numerical study to simulate the flow in PIM with a divergence angle using the Lattice−Boltzmann technique was carried out by ref , who confirmed the same results again. The inlet and outlet diameters of the conical part are 40 and 150 mm in diameter, respectively, and its height is 205 mm.…”

Section: Methodsmentioning

confidence: 55%

“…The test apparatus consisted of the PIM burner with the integrated vaporizer and other ancillary components. The control and measurement facilities used in this investigation were identical to that described in previous work , and the previous experiment for the vaporization of rapeseed oil. Figure provides a schematic diagram of the PIM burner with its different parts.…”

Section: Methodsmentioning

confidence: 99%

“…Another problem that has to be resolved before using vegetable oils in PIM burners is the flame stability. As discussed in a previous work, the quenching zone and flow velocity control are the only stability techniques that were successfully applied to PIM burners for power densities >650 kW/m 2 under atmospheric operation. Hoping to prove the universal validity of the first approach, an attempt was carried out to burn rapeseed oil using the quenching zone approach to stabilize the flame.…”

Section: Introductionmentioning

confidence: 99%

“…This led to a rapid functional failure of this layer and, hence, a failure of this stabilization technique during the very early phase of operation. The flow velocity technique, introduced in a previous work, circumvents the above-mentioned difficulties by combusting the oil vapor directly in the PIM matrix. Hence, the condensation of the vapor is avoided because it is not obstructed by any intermediate cold object.…”

Section: Introductionmentioning

confidence: 99%

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Low-Emission Premixed Porous Inert Media (PIM) Burner System Fueled with Vegetable (Rapeseed) Oil Using a Flow Velocity Flame Stabilization Technique

Bakry¹,

Al‐Salaymeh²,

Al-Muhtaseb

et al. 2010

Energy Fuels

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One of the main targets of all current combustion systems, in addition to high efficiency and robust performance, is the ability to meet current and future pollutant emission regulations. In the present work, the suitability of vegetable (rapeseed) oil as a renewable, biodegradable, and environmentally friendly source of energy to operate porous inert medium (PIM) atmospheric burners was examined. A prototype integrated vaporizer system with a PIM burner based on the flow velocity flame stabilization technique was built and experimentally investigated. The operation was based on using two vaporizers working in a mutual mode, so that one of the vaporizers supplies the burner with the oil vapor while the other is cleaned. The PIM burner was successfully tested at power values from 5 to 20 kW, which correspond to a power modulation range of 1:6. Using a special oxidation cleaning technique, a free-residual vaporizer has been obtained. Qualitatively, a very good homogeneous and stable combustion shape across the burner was obtained. During the whole experiment, CO emissions recorded a zero value continuously for the whole range of power and relative air ratio tested. Furthermore, no flashback condition or smoke or soot formation was noticed during operation. The results of NO x and CO emission levels prove the high degree of repeatability and reliability of combustion with this new combustion technique in PIM burners. These results prove an excellent emission performance with respect to environmental pollution legislation.

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Section: Methodsmentioning

confidence: 55%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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