Mechanical characteristics evaluation of biogas micro turbine power systems

Hur, Kyeong; Rhim, Sang-Kyu; Park, Jungkeuk

doi:10.1016/j.jlp.2009.08.006

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…The integration of biomass gasification into small CHP plants (o1 MW e ) has been the subject of many recent studies, like [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Many of these studies focus the integration of biomass gasification with high-temperature solid oxide fuel cells, for instance, Omosun et al [10] and Panopoulos et al [11].…”

Section: Gasification Literature Reviewmentioning

confidence: 99%

Modelling of biomass gasifier and microturbine for the olive oil industry

Vera

Jurado

Panopoulos

et al. 2010

Int. J. Energy Res.

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SUMMARYThe olive oil industry generates several solid wastes. Among these residues are olive tree leaves, prunings, and dried olive pomace (orujillo) from the extraction process. These renewable energy sources can be used for heat and power production. The aim of this paper consists of modelling and simulation of a small-scale combined heat and power (CHP) plant (fuelled with olive industry wastes) incorporating a downdraft gasifier, gas cleaning and cooling subsystem, and a microturbine as the power generation unit. The gasifier was modelled with thermodynamic equilibrium calculations (fixed bed type, stratified and with an open top). This gasifier operates at atmospheric pressure with a reaction temperature about 8001C. Simulation results (biomass consumption, gasification efficiency, rated gas flow, calorific value, gas composition, etc.) are compared with a real gasification technology. The product gas obtained has a low heating value (4.8-5.0 MJ Nm À3) and the CHP system provides 30 kW e and 60 kW th . High system overall CHP efficiencies around 50% are achievable with such a system. The proposed system has been modelled using Cycle-Tempo software s .

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Section: Gasification Literature Reviewmentioning

confidence: 99%

Modelling of biomass gasifier and microturbine for the olive oil industry

Vera

Jurado

Panopoulos

et al. 2010

Int. J. Energy Res.

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“…In this work, however, the point of view taken is the performance study of the whole gas turbine instead of a detailed study of a single component. Other works have numerically studied, in this context, micro gas turbines [37]. In this case, a medium-sized power-generating (electrical) gas turbine was studied through computational models.…”

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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“…The methane content of the biogas is critical for use in an internal combustion engine; thus, a concentration of CO 2 above 40% is not desirable for the engine performance [48]. Most studies made on engines running on biogas fuel reported an electrical energy conversion efficiency of about 30-40% [49,50].In this study, a conversion efficiency of about 30% is considered taking into account the complex combustion characteristics of biogas. The quantity of useful energy derived from a unit cubic meter of biogas is therefore determined by its energetic value and the technical efficiencies of the devices.…”

Section: Energy Technologiesmentioning

confidence: 99%

Alternative energy supply system to a rural village in Ethiopia

Tucho

Nonhebel

2017

Energ Sustain Soc

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Background: Most households in rural developing countries do not have access to modern energy supply. Household level biogas energy was considered as an option but failed due to lack of sufficient resources for its installation and operation. A community energy system can be an option, but most studies focused on off-grid electricity. This energy system cannot be a realistic option particularly for cooking demand. An efficient and suitable system matching local resources and demand expectation needs to be developed which this study focuses on assessing. Biogas and solar energy technologies are viable to establish such kind of a system since they can be converted to different forms of energy. Therefore, this study aims to determine efficient biogas and solar energy production and utilization options for small scale village energy application in rural Ethiopia. Methods: The efficiencies of the production and utilization options are determined based on the system configurations involving resource, conversion, and utilization combination models. We used local resources, data, and relevant literature information for the system analysis. Results: The analysis shows that most energy is needed in the form of heat for cooking and a smaller part in the form of electricity (about 10%). The community waste stream converted to biogas will be enough for cooking, but not enough biogas is left to produce enough electricity. Co-digesting altogether provides biogas that can meet only about 75% of the electricity demand. Concentrated solar cookers can be an alternative for cooking in areas where installation of biogas is not possible. About 2-m 2 size solar concentrator is sufficient to meet each household's cooking energy demand. The lighting and appliance energy demand can be met with photovoltaic (PV) energy produced with reasonably sized panels. However, the use of electrical energy for cooking produced with PV cannot be an economic option with the available technologies. Conclusions: The community energy system involving anaerobic co-digestion (biogas) and/or solar energy technologies is viable to meet the demand when efficient production and conversion is made based on specific local resource supply and demand.

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Mechanical characteristics evaluation of biogas micro turbine power systems

Cited by 10 publications

References 10 publications

Modelling of biomass gasifier and microturbine for the olive oil industry

Modelling of biomass gasifier and microturbine for the olive oil industry

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

Alternative energy supply system to a rural village in Ethiopia

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