Bio-fuels for the gas turbine: A review

Gupta, K. C.; Rehman, A.; Sarviya, R. M.

doi:10.1016/j.rser.2010.07.025

Cited by 260 publications

(123 citation statements)

References 51 publications

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“…The major alternative fuels [1] presently used are alcohol, bioethanol and biomass etc. Biofuels like JME derived from Jatropha plant (Ratanjot) is one of the most promising alternative fuels [2][3][4]. Many researchers [5][6][7][8] studied C.I.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations on Combustion Characteristics of Jatropha biodiesel (JME) and its Diesel Blends for Tubular Combustor Application

Sk¹,

Deshp²,

Sb³

2016

Adv Automob Eng

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Scarcity of fossil fuels and their negative impact on environment drive the research in the field of alternative fuels. Biodiesel is one such promising alternative fuel that is used in automobile, gas turbine, boiler and other furnace applications. In the present study, combustion characteristics of biodiesel (Jatropha methyl ester) and its diesel blends in gas turbine like combustor have been studied experimentally. An airblast atomizer along with axial swirler (swirler no. 0.76) is employed to investigate the combustion characteristics. During the experiment, heat rate (24 kW), Air to liquid ratio (ALR=2) and air temperature (600K) was kept constant. For different equivalence ratio, spray and flame characterization, flame temperature, combustion efficiency and emission parameters such as carbon dioxide (CO 2 ), Carbon monoxide (CO), Nitrogen oxide (NO x ) and unburned hydrocarbon (UHC) were determined. It is found that the flame temperature increases with increase in JME percentage in diesel whereas and major pollutants such as CO, CO 2 and UHC emissions decrease but the NOx emissions increases. The obtained results indicate that the biodiesel can be promising fuel for gas turbine power plants instead of fossil fuels.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigations on Combustion Characteristics of Jatropha biodiesel (JME) and its Diesel Blends for Tubular Combustor Application

Sk¹,

Deshp²,

Sb³

2016

Adv Automob Eng

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“…Secondly, the presence of water and components with a low boiling point can result in vapor formation in the fuel line at high oil temperatures [90,143]. Since these phenomena may lead to problems with the fuel supply, pyrolysis oil is generally preheated in the fuel line to a maximum temperature of 80-90 • C in order to avoid any undesired changes in physical and chemical state [32,67]. At such temperatures, pyrolysis oils can still exceed the standard viscosity levels for gas turbine injection systems.…”

Section: The Application Of Pyrolysis Oil In Gas Turbinesmentioning

confidence: 99%

“…Fast pyrolysis oil is a renewable biofuel produced from biomass waste materials that can potentially be used as a fuel for industrial gas turbine engines [11,32,39,67,76,97]. It is composed of a large number of oxygenated compounds that are formed during the thermal decomposition of biomass in the pyrolysis process.…”

Section: Introductionmentioning

confidence: 99%

“…Gas turbines offer some important advantages over other conversion technologies, including high power-to-weight ratio, high reliability, high flexibility and low pollutant emissions [67]. The scalability of gas turbines furthermore allows for the production of heat and power in a decentralized manner.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, in view of the overall efficiency and sustainability including fuel production, it is preferable to focus on second generation biofuels derived from biomass residues. In this class of biofuels, fast pyrolysis oil is considered as a promising example [39,51,67,96].…”

Section: Introductionmentioning

confidence: 99%

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On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Sallevelt¹

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This document was typeset using L A T E X.Cover image: Structure of a water spray produced by a pressure-swirl atomizer. SummaryThe combustion of liquid biofuels in gas turbines is an efficient way of generating heat and power from biomass. Gas turbines play a major role in the global energy supply and are suitable for a wide range of applications. However, biofuels generally have different properties compared to the conventional fossil fuels. This can lead to various problems when biofuels are directly used in existing installations.This thesis aims to provide better insights into the combustion of biomass-derived pyrolysis oil in gas turbines. Pyrolysis oil can be produced from non-edible biomass via the fast pyrolysis process. In this process, the organic matter is thermally decomposed under mild conditions (~500 • C, 1 atm) through rapid heating in an oxygenfree environment. The vapors formed in the reactor are subsequently condensed to obtain a combustible liquid as the main product. In comparison to the most common biofuels of the first generation, i.e. bioethanol and biodiesel, pyrolysis oil has advantages regarding cost and environmental benefits. From a technical point of view, however, it is a less favorable fuel due properties such as a low heating value, high water content, high acidity, high viscosity, increased surface tension and poor stability. Gas turbines therefore need to be modified before they can successfully operate on pyrolysis oil in pure form. One of the essential tasks is to develop a suitable burner for liquid fuels of such low quality. In this thesis, two research objectives have been formulated to support the development of pyrolysis oil combustion technology.The first objective is to describe the evaporation and flame characteristics of pyrolysis oil. This objective has been addressed by developing a CFD model based on the Euler-Lagrange method in ANSYS Fluent. The modeling approach was first applied to simulate the combustion of ethanol in a modified, downscaled diesel burner of the OPRA OP16 gas turbine rated at 1.9 MW e . This part of the numerical work can be regarded as a first step to validate the model against experiments and literature. Ethanol is a suitable replacement of pyrolysis oil for this purpose, since it is a singlecomponent, nonviscous, volatile and clean burning biofuel that has been studied more extensively in the past. In the next step, the model was further developed to simulate the full-scale combustion of pyrolysis oil in a burner that was recently designed by OPRA for biofuel applications. The complex composition of pyrolysis oil has been approximated by means of a surrogate fuel containing seven components: methanol, water, acetic acid, acetol, phenol, eugenol and levoglucosan. Each comv ponent is known to be present in pyrolysis oil and is used to represent a group of constituents with similar properties. The initial mass fractions of the seven components are chosen such that the surrogate fuel matches the volatility, water content, elemental composition...

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Green Chemistry and Ecological Engineering as a Framework for Sustainable Development

Asolekar¹,

Ramachandran²,

Hiremath³

et al. 2015

An Integrated Approach to Environmental Management

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Bio-fuels for the gas turbine: A review

Cited by 260 publications

References 51 publications

Experimental Investigations on Combustion Characteristics of Jatropha biodiesel (JME) and its Diesel Blends for Tubular Combustor Application

Experimental Investigations on Combustion Characteristics of Jatropha biodiesel (JME) and its Diesel Blends for Tubular Combustor Application

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Green Chemistry and Ecological Engineering as a Framework for Sustainable Development

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