Effects of heating height on flame appearance, temperature field and efficiency of an impinging laminar jet flame used in domestic gas stoves

Hou, Shuhn-Shyurng; Ko, Yung-Chang

doi:10.1016/j.enconman.2003.09.016

Cited by 90 publications

(26 citation statements)

References 16 publications

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“…There were recommended fuel mass loadings according to the fire power of the stove, and it was observed that the fuel mass loadings significantly affected the results [19]. The chamber heights and ventilation rates were not requested by the listed test methods, but also had a significant influence on performance [20]. The test ending point operations were the most dissimilar, but little had been reported about this in the literature [11,12].…”

Section: Testing Conditions Set Upmentioning

confidence: 99%

The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion

Zhang

Zhou

et al. 2018

Energies

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Direct combustion of solid biomass fuel is one of the most common energy sources in developing countries. Evaluation of technology for household biomass pellet fuel combustion is critical, since promoting poorly designed devices may have risks due to exposure to high levels of emissions. This study evaluated the effects of various testing conditions on a top-lit forced-up-draft semi-gasifier cooking stove. An orthogonal test was designed with different fuel masses, chamber heights, air supply rates, and ending points. The investigation showed that using forced secondary air and more fuel tended to improve both thermal and gas emissions performance. The ending points did not have significant effects on thermal efficiency or the carbon dioxide emission factor, but did affect particulate matter emission. A relatively lower chamber height demonstrated better performance on thermal metrics. However, a taller flame had better performance on particulate matter emission factors. The results of the indicators reported by different bases, such as fuel mass-based or useful energy-based were also quite different. The study showed that different testing conditions had significant effects on combustion performances. Testing sequences and emission factors should be reviewed and defined clearly when forming testing methods and standards for biomass pellet fuel combustion.

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Section: Testing Conditions Set Upmentioning

confidence: 99%

The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion

Zhang

Zhou

et al. 2018

Energies

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“…Thus the impinging flames have been intensively studied for a variety of applications. Most of the impinging studies focused on the effects of heat transfer characteristics with physical burner and plate geometries [1][2][3], equivalence ratio and Reynolds number [4], thermal efficiency [5,6] and plate materials [4].…”

Section: Introductionmentioning

confidence: 99%

Time-resolved 3D investigation of the ignition process of a methane diffusion impinging flame

Wang

Zhao

Zhang

2015

Experimental Thermal and Fluid Science

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The ignition process of a methane diffusion impinging flame was investigated experimentally, using high speed schlieren/stereo imaging and image processing techniques. Two types of flame can be identified during the ignition process: premixed like flame with weak blue colour and diffusion flame with yellow-reddish colour. The 3D structure of blue flame after enhancement and yellow flame has been reconstructed and analysed seperately. The ratio between green and blue colour intensity is used to provide indications of the global fuel/air mixture state of the blue flame, which is found to correlate well with the flow conditions and flame propagation characteristics.

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“…(2)-(4): Table 1 indicates that when the separation distance was small, i.e., at H/d = 2 and H/d = 2.6, the heat fluxes observed were very high. Hou and Ko [34] had also observed that the maximum heating efficiency was obtained when the inner reaction zone was intercepted by the plate (type-C flame in their study). It was also mentioned that interception of the flame makes the high temperature zone in the flame wider, resulting in high heat transfer rate.…”

Section: Effect Of H/d On Heat Transfer Characteristicsmentioning

confidence: 73%

Heat transfer characteristics of three interacting methane/air flame jets impinging on a flat surface

Chander

Ray

2007

International Journal of Heat and Mass Transfer

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Effects of heating height on flame appearance, temperature field and efficiency of an impinging laminar jet flame used in domestic gas stoves

Cited by 90 publications

References 16 publications

The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion

The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion

Time-resolved 3D investigation of the ignition process of a methane diffusion impinging flame

Heat transfer characteristics of three interacting methane/air flame jets impinging on a flat surface

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