Numerical Analysis of the Combustion in Micro Gas Turbine with Methane/Biogas Fuels

Chen, Xiaoyu; Zhang, Weiguo; Jia, Yunfei; Tang, Junying

doi:10.1007/s13369-021-05731-3

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…The thickness of the stove should not be too thin (less than 2 mm), which has poor preheating effect on the premixed gas; it should also not be too thick (more than 4 mm), which will lead to a large temperature difference between the upper and lower surfaces, causing the stove to be broken and damaged. This result is consistent with the conclusions in the literature [22].…”

Section: Influence Of Porous Media Thickness On Stove Performancesupporting

confidence: 94%

“…Energies 2022, 15, x FOR PEER REVIEW 16 of 24 poor preheating effect on the premixed gas; it should also not be too thick (more than 4 mm), which will lead to a large temperature difference between the upper and lower surfaces, causing the stove to be broken and damaged. This result is consistent with the conclusions in the literature [22]. It can be seen from Figure 11c that when the thickness of the stove ranges from 0.001 m to 0.005 m, at 0.002 m, the total radiant heat increased by 0.308 kW.…”

Section: Influence Of the Porous Media Diameter On Stove Performancesupporting

confidence: 92%

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Study on Heat Transfer Characteristics and Performance of the Full Premixed Cauldron Stove with Porous Media

Zheng¹,

Su²,

Ou³

et al. 2022

Energies

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The cauldron stoves used in restaurants and canteens usually adopt the combustion mode of blast diffusion. Low combustion efficiency leads to low thermal efficiency and high CO and NOx emissions. To address these problems, a 52 kW fully premixed stove with porous media is designed, and the heat transfer characteristics of the stove are analyzed by theoretical analysis and numerical simulation. The results show that under the rated power, the thermal efficiency of the stove reaches 68.55%, which is more than twice the thermal efficiency of the traditional blast diffusion stove. Among them, the radiant heat efficiency of the stove reaches 47.16%; thus, radiation heat transfer has become an important way of heat transfer of the porous media stove. Moreover, increasing the diameter and emissivity of porous media will increase the radiant thermal efficiency of the stove, but it will significantly reduce the flame temperature. In addition, the influence of the diameter is greater than the emissivity. The increase of the thickness of porous media can significantly improve the preheating temperature of the premixed gas, thus improving the ignition performance of the stove. Additionally, the stove has an appropriate thickness (approximately 3 mm), which not only ensures the preheating temperature but also does not easily allow for breakage and damage of porous media. Increasing the pore density or reducing the porosity of porous media can enhance the ignition performance of the stove. Moreover, the results of numerical simulation verify the theoretical results to a certain extent and shows that there is an optimal flue position as well.

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Section: Influence Of Porous Media Thickness On Stove Performancesupporting

confidence: 94%

Section: Influence Of the Porous Media Diameter On Stove Performancesupporting

confidence: 92%

Study on Heat Transfer Characteristics and Performance of the Full Premixed Cauldron Stove with Porous Media

Zheng¹,

Su²,

Ou³

et al. 2022

Energies

View full text Add to dashboard Cite

show abstract

“…In this case, gas turbines without modifications are analyzed to allow for the direct reuse of existing turbomachinery. Numerical studies have been proven as a valuable way to study combustion in gas turbines when using biofuels [39]. The previous reference employed CFD methods to perform the combustor analysis.…”

Section: Discussionmentioning

confidence: 99%

Application of Biogas from Quinoa, Wheat, and Andean Guinea Pig Residuals as Biofuels for Gas Turbines

et al. 2023

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This article shows the effect that biogases obtained from crop residuals from the Andean region have on the performance of a whole medium-sized electrical-generating gas turbine. This technology could be used to supply electricity in energy-depressed areas where biogas is the only accessible resource. The gas turbine worked with higher efficiencies when the obtained biogases were used compared to natural gas. The biofuel that presented the highest efficiencies was the one obtained from wheat residuals alone. Despite this fact, this biofuel would be the most prone to create aerodynamic problems in the stages of the gas turbine. In this work, it was found that the addition of guinea pig manure to different crop residuals created biofuels less prone to create aerodynamic problems in the compression and expansion stages. In particular, the studied biofuel that had the most similar aerodynamic behavior to the design natural gas case was the one obtained from guinea pig manure and quinoa residuals. On the other hand, this biogas presented the lowest efficiencies of the studied biofuels. Despite this fact, this biofuel showed higher efficiencies than the natural gas case. In the gas turbine combustion chamber, all the studied biofuels operated at lower temperatures than the ones with natural gas, even in the high-power range. This would be an important feature for the running of the combustion chamber and the high-pressure turbine superalloys.

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Numerical Analysis of the Combustion in Micro Gas Turbine with Methane/Biogas Fuels

Cited by 2 publications

References 29 publications

Study on Heat Transfer Characteristics and Performance of the Full Premixed Cauldron Stove with Porous Media

Study on Heat Transfer Characteristics and Performance of the Full Premixed Cauldron Stove with Porous Media

Application of Biogas from Quinoa, Wheat, and Andean Guinea Pig Residuals as Biofuels for Gas Turbines

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