Biodiesel for Gas Turbine Application — An Atomization Characteristics Study

Preliminary Evaluation of Atomization Characteristics of Improved Biodiesel for Gas Turbine Application

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/16/1/012014 ◽

2013 ◽

Vol 16 ◽

pp. 012014 ◽

Cited By ~ 1

Author(s):

P Kumaran ◽

M Gopinathan ◽

N M Razali ◽

Isabel Kuperjans ◽

B Hariffin ◽

...

Keyword(s):

Gas Turbine ◽

Preliminary Evaluation ◽

Atomization Characteristics

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Evaluation of Atomization Characteristics of Second Generation Biodiesel Using Air Blast Atomizer

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.35.23105 ◽

2018 ◽

Vol 7 (4.35) ◽

pp. 772

Author(s):

Gopinathan Muthaiyah ◽

Kumaran Palanisamy

Keyword(s):

Gas Turbine ◽

Second Generation ◽

High Viscosity ◽

Spray Angle ◽

Biodiesel Fuel ◽

Sauter Mean Diameter ◽

Evaporation Time ◽

Air Blast ◽

Mean Diameter ◽

Atomization Characteristics

Biodiesel is one of the well-known renewable fuels that can be produced from organic oils and animal fats. Biodiesel fuel that meets ASTM D6751 fuel standards can replace diesel for reciprocating engine. On the other hand, biodiesel can also be considered for gas turbine application in power generation. Nevertheless, inferior properties of biodiesel such as high viscosity, density and surface tension results in inferior atomization and high emission which consequently hinders the fuel for gas turbine utilisation and generate higher emission pollutants. Therefore, this work focused on the evaluation of atomization characteristics of second generation biodiesel which is produced using microwave assisted post treatment scheme. The atomisation characteristics of second generation biodiesel was evaluated using air blast atomiser in terms of spray angle and spray length. Subsequently, numerical evaluation was performed to evaluate sauter mean diameter and droplet evaporation time of second generation biodiesel. The results show, atomization characteristics of second generation biodiesel has improved in terms of spray angle and spray length, sauter mean diameter and shorter evaporation time compared to biodiesel which is commonly referred to as first generation biodiesel and fossil diesel.

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Staged Combustion of CWM Fuel

1985 Joint Power Generation Conference: GT Papers ◽

10.1115/85-jpgc-gt-6 ◽

1985 ◽

Author(s):

T. J. Rosfjord

Keyword(s):

Electric Power ◽

Gas Turbine ◽

Gas Turbines ◽

Oil And Gas ◽

Turbine Engine ◽

Fuel Injectors ◽

Power Deficit ◽

Generating Capacity ◽

Burning Coal ◽

Atomization Characteristics

The prognosis for electric power generating capacity and for electric power consumption forcasts a problem of power deficits in the future. A solution to that problem may be found in the conversion of existing and future oil and gas fired units to accept coal as the principle fuel. It is recognized that the gas turbine engine can represent a substantial response to the potential electric power deficit problem; consequently, providing a coal-based fuel compatible with gas turbine systems may be of great importance. Technological problems will be encountered in substituting a coal-water slurry for the currently-used more tractable gas turbine fuels. These problems include the design of both fuel injectors that provide desirable fuel distribution and atomization characteristics, and of combustors with broad ranges of stability. Moreover, it must be recognized that the bound nitrogen in coal will produce unacceptable levels of nitrogen oxides unless special combustion techniques are used. Thus, efforts must be undertaken to develop acceptable coal-water fuel specifications, establish the viability of burning coal-water mixtures in gas turbines, and establish a data base for ultimate use in combustion system design procedures.

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A Development of the Fuel Atomizing Device Utilizing High Rotational Speed

Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery ◽

10.1115/81-gt-180 ◽

1981 ◽

Cited By ~ 2

Author(s):

T. Morishita

Keyword(s):

Gas Turbine ◽

Droplet Size ◽

Rotational Speed ◽

Liquid Fuel ◽

Tangential Velocity ◽

Gas Turbine Engine ◽

High Rotational Speed ◽

Turbine Engine ◽

The Mean ◽

Atomization Characteristics

A fuel atomizing device was developed for a combustor of a small gas turbine engine. The device is a rotary atomizer in which liquid fuel is supplied through a stationary nozzle onto a specially shaped disc rotating with a high tangential velocity (over 200 m/sec). The rotary atomizer has shown remarkably good atomization characteristics when used in the engine. The mean droplet size of the atomizer is explained by the following equation for water: SMD = 0.033 • U−0.7 • Q0.2 • D0.3. The SMD for fuel can be evaluated by the correlation of: SMD∞(σ/ρ)0.5. The performance together with its configurations will be discussed in detail.

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