Performance of a Flameless combustion furnace using biogas and natural gas

Colorado, Henry A.; Herrera, Bernardo; Amell, Andrés

doi:10.1016/j.biortech.2009.11.003

Cited by 125 publications

(47 citation statements)

References 13 publications

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“…Those gases need sensible heat to reach same temperature with others component in combustion product, that further more decrease the increasing of maximum temperature reached. This analysis in accordance with Colorado research [37], in which the increased amount of inert gases cool down the reactions lowering the temperature of the chamber.…”

Section: Figsupporting

confidence: 88%

“…Slightly differences can be seen when the simulation results were compared with the numerical study done by Noor et al [28], and experimental result done by Colorado et al [37], in where the lowest temperature of the range of average temperature [28] and the average temperature [37] resulted from previous researches were slightly lower than the lowest temperature value obtained from the simulation. Since the temperatures from previous researches [28,37] were the average temperatures, those temperatures will always be lower than the maximum temperatures. The presence of little unburned methane [28], little incomplete combustion that produce CO [28,37], and little NOx formation [37] will also decrease the temperature.…”

Section: Comparation With Previous Researchesmentioning

confidence: 93%

“…Since the temperatures from previous researches [28,37] were the average temperatures, those temperatures will always be lower than the maximum temperatures. The presence of little unburned methane [28], little incomplete combustion that produce CO [28,37], and little NOx formation [37] will also decrease the temperature. Since this simulation was done in complete condition, the temperature obtained will be higher.…”

Section: Comparation With Previous Researchesmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Product and Temperature of Biogas Combustion in Various Air Biogas Equivalence Ratio and Methane Content

Wresta

Saepudin

2018

Indones. J. Chem.

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Biogas resulted from anaerobic digestion of organic compounds have various methane content depend on the type of the degraded material. The methane content of biogas is range between 40–80% that influence the heating value and combustion characteristic of that biogas. The higher methane content can be obtained through upgrading biogas by removing CO2 and other trace components like H2S, NH3, and water vapor. This research was a simulation of product composition and temperature of biogas combustion in various methane content and air biogas equivalence ratio. Biogas combustion was done in combustion chamber at constant pressure of 1 atm. Biogas and air enter into combustion chamber at temperature approximately of 30 °C as the common ambient temperature in Indonesia. The input air was designed higher than stoichiometric need in order to reach complete combustion. Combustion reaction between methane and O2 then carried out in the combustion chamber to produce CO2 and H2O. The product gases consisting of CO2, H2O, N2, and excess O2, bring heat from combustion reaction and exit from combustion chamber at the higher temperature. The analysis was done for methane content range between 20 and 100% with air biogas equivalence ratio from 1 until 3. The simulation result showed that for V m3 biogas, the combustion gases could reach 0.12271 until 1.26798V gmol with temperature above 700 °C until above 1900 °C. More than 50% component in the combustion gases is N2 as inert material from input air to combustion chamber.

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Section: Figsupporting

confidence: 88%

Section: Comparation With Previous Researchesmentioning

confidence: 93%

Section: Comparation With Previous Researchesmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Product and Temperature of Biogas Combustion in Various Air Biogas Equivalence Ratio and Methane Content

Wresta

Saepudin

2018

Indones. J. Chem.

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“…Attention was also focused for making biogas as a transport vehicle and stationary engine fuel by storing it in cylinders and reinforced plastic bags. Colorado, et al [15] investigated the performance of flameless combustion using biogas and natural gas fuels. The results show minor reduction of the efficiency of the furnace and lower temperatures for the biogas fuels.…”

Section: Combustion Of Renewable Biogas Fuels 832mentioning

confidence: 99%

Combustion of Renewable Biogas Fuels

Ghenaï¹,

Janajreh²

2015

JEPE

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Biogas fuel is a sustainable and renewable fuel produced from anaerobic digestion of organic matter. The biogas fuel is a flammable mixture of methane and carbon dioxide with low to medium calorific values. Biogas is an alternative to conventional fossil fuels and can be used for heating, transportation and power generation. CFD (computational fluid dynamic) analysis of the combustion performance and emissions of biogas fuel in gas turbine engines is presented in this study. The main objective of this study is to understand the impact of the variability in the biogas fuel compositions and lower heating values on the combustion process. Natural gas, biogas from anaerobic digester, landfill biogas, and natural gas/biogas mixture fuels combustion were investigated in this study. The CFD results show lower peak flame temperature and CO mole fractions inside the combustor and lower NO x emissions at the combustor exit for the biogas compared to natural gas fuel. The peak flame temperature decreases by 37% for the biogas landfill (CO 2 /CH 4 = 0.89) and by 22% for the biogas anaerobic digester (CO 2 /CH 4 = 0.54) compared to natural gas fuel combustion. The peak CO mole fraction inside the combustor decreases from 9.8 × 10 -2 for natural gas fuel to 2.22 × 10 -4 for biogas anaerobic digester and 1.32 × 10 -7 for biogas landfill. The average NO x mole fraction at the combustor exit decreases from 1.13 × 10 -5 for natural gas fuel to 0.40 × 10 -6 for biogas anaerobic digester and 1.06 × 10 -10 for biogas landfill. The presence of non-combustible constituents in the biogas reduces the temperature of the flame and consequently the NO x emissions.

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“…The requirement for any type of combustible gas is to have a stable flameo In this regard when biogas is burnt in a conventional burner it presents some difficulties in comparison with NG or LPG due to the higher content of caz [44][45][46][47]. Studies carried out on the flame stability in burners with biogas, obtained pre-mixing natural gas from the network, caz (30-40%) and air, indicate that the lower the content of CH 4 and the higher content in caz, the lower the stability of the flame is.…”

Section: Introduetionmentioning

confidence: 99%