Performance evaluation of external fired hybrid solar gas-turbine power plant in Colombia using energy and exergy methods

Moreno-Gamboa, Faustino; Escudero-Atehortúa, Ana; Nieto-Londoño, César

doi:10.1016/j.tsep.2020.100679

Cited by 11 publications

(12 citation statements)

References 58 publications

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“…The results shows a good agreement with the reference data with an acceptable error level (see Table 1). Details of validation, parameters, and models can be found explained in Moreno-Gamboa, et al [12]. Figure 2 represents the daily evolution of power output, W ̇ present a variation of 3% during a whole day and is independent of solar irradiance and is only function of ambient temperature.…”

Section: Resultsmentioning

confidence: 99%

“…Following the work of Moreno-Gamboa, et al [12], the values of Q ̇&' and Q ̇&& represent the external heat delivered to the working fluid by the solar concentrating system and the combustion chamber respectively (see Figure 1(b)). Therefore, Q ̇# is defined as the total heat supplied to the working fluid and is expressed in Equation ( 2).…”

Section: Power Unit Modelmentioning

confidence: 99%

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Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Moreno-Gamboa

Acevedo-Paez²,

Sanin-Villa

2022

J. Phys.: Conf. Ser.

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A thermodynamic model is presented for evaluation of a solar hybrid gas-turbine power plant. The model uses variable ambient temperature and estimates direct solar radiation at different day times. The plant is evaluated in Barranquilla, Colombia, with a solar concentration system and a combustion chamber that burns natural gas. The hybrid system enables to maintain almost constant the power output throughout day. The model allows optimizing the different plant parameters and evaluating maximum performance point. This work presents pressure ratio ranges where the maximum values of overall efficiency, power output, thermal engine efficiency and fuel conversion rate are found. The study is based on the environmental conditions of Barranquilla, Colombia. The results obtained shows that optimum pressure ratio range for power output and overall efficiency is between 6.4 and 8.3, when direct solar radiation its maximum at noon. This thermodynamic analysis is necessary to design new generations of solar thermal power plants.

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Section: Resultsmentioning

confidence: 99%

Section: Power Unit Modelmentioning

confidence: 99%

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Moreno-Gamboa

Acevedo-Paez²,

Sanin-Villa

2022

J. Phys.: Conf. Ser.

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“…Additionally, the maximum error of the overall efficiency (η), and the solar fraction (f) is above 1%, that indicated by a good correlation of model. The details of validation, parameters and models can be found in previous works [13]. The plant models and thermodynamic properties of the working fluid are assessed using the Modelica language and compiler Dymola.…”

Section: Validation Modelsmentioning

confidence: 99%

Effect of a regenerator on hybrid solar gas turbine performance in Barranquilla, Colombia

Moreno-Gamboa

Acevedo-Paez²,

Sanin-Villa

2021

J. Phys.: Conf. Ser.

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A thermodynamic analysis of a hybrid gas turbine solar plant, represented in three basic subsystems related to the power cycle, the combustion chamber subsystem, and the solar concentrator subsystem, allows evaluating the performance of a hybrid cycle from a reduced number of parameters, which include energy losses in each of its components. The solar radiation values are estimated with an evaluated and validated theoretical model, the combustion chamber uses natural gas as fuel and the numerical values of the system are taken from the Solugas experimental plant in Spain. This work presents an integrated model that allows to estimate the operation of a hybrid solar Brayton power plant in any place and day of the year. The evaluation of the plant in Barranquilla, Colombia is shown from the influence of the regenerator has on the plant performance and solar concentrating system. The results show that the regenerator can increase the overall efficiency of the plant by 29% and allows reaching a maximum temperature of the central receiver of the concentrator of 1044 K at noon, when solar radiation is maximum.

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“…Strategies conducted to supply such consumption must include a rapid increase in energy productivity, efficiency management strategies for energy systems, an integrated approach that uses centralized and decentralized sources, and a more significant share of renewable in the mix [3]. Depletion of fossil fuel sources and the associated effect of the non-rational use of this on the environment has raised the interest in searching alternatives accounting for the development, renovation, adaptation and even hybridization of different renewable [4][5][6][7] and non-renewable generation sources [8]. In this aim, the United Nations promotes the implementation of strategies conducting to ensure access to affordable, reliable, sustainable and modern energy for all [9].…”

Section: Introductionmentioning

confidence: 99%

Technological and Operational Aspects That Limit Small Wind Turbines Performance

et al. 2020

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Small Wind Turbines (SWTs) are promissory for distributed generation using renewable energy sources; however, their deployment in a broad sense requires to address topics related to their cost-efficiency. This paper aims to survey recent developments about SWTs holistically, focusing on multidisciplinary aspects such as wind resource assessment, rotor aerodynamics, rotor manufacturing, control systems, and hybrid micro-grid integration. Wind resource produces inputs for the rotor’s aerodynamic design that, in turn, defines a blade shape that needs to be achieved by a manufacturing technique while ensuring structural integrity. A control system may account for the rotor’s aerodynamic performance interacting with an ever-varying wind resource. At the end, the concept of integration with other renewable source is justified, according to the inherent variability of wind generation. Several commercially available SWTs are compared to study how some of the previously mentioned aspects impact performance and Cost of Electricity (CoE). Understanding these topics in the whole view may permit to identify both tendencies and unexplored topics to continue expanding SWTs market.

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Performance evaluation of external fired hybrid solar gas-turbine power plant in Colombia using energy and exergy methods

Cited by 11 publications

References 58 publications

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Effect of a regenerator on hybrid solar gas turbine performance in Barranquilla, Colombia

Technological and Operational Aspects That Limit Small Wind Turbines Performance

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