Experimental analysis and numerical validation of the solar Dish/Stirling system connected to the electric grid

Luis Sebastián Mendoza Castellanos; Ana Lisbeth Galindo Noguera; Gaylord Enrique Carrillo Caballero; André Leandro De Souza; Vladimir Rafael Melian Cobas; Electo Eduardo Silva Lora; Osvaldo José Venturini

doi:10.1016/j.renene.2018.11.095

Experimental analysis and numerical validation of the solar Dish/Stirling system connected to the electric grid

Luis Sebastián Mendoza Castellanos
, Ana Lisbeth Galindo Noguera
, Gaylord Enrique Carrillo Caballero
, André Leandro De Souza
, Vladimir Rafael Melian Cobas
, Electo Eduardo Silva Lora
, Osvaldo José Venturini

Research output: Articles / Notes › Scientific Article › peer-review

44 Scopus citations

Abstract

The use of solar-powered Stirling engines to convert thermal energy into electricity is a promising and renewable technological solution that can contribute to reducing dependence on fossil fuels for electricity generation. Unfortunately, the lack of experimental performance data and operating parameters for this type of technology limits its detailed characterization, difficult its modeling and design and consequently its utilization. This paper aims to validate the mathematical model of the Dish/Stirling system previously published by Mendoza et al. (2017) with the TRINUM system, installed at the Federal University of Itajubá-Brazil. For nominal conditions, the Dish/Stirling system generates an electric power of 1.00 kW at a solar irradiation of 725 W/m² with a system overall efficiency of 17.6%. The results show that for solar irradiance values between 520 and 950 W/m² the experimental tests and the results of the mathematical modeling do not present considerable differences, obtaining an electric power of 1089 kWe and an efficiency of 17.98%, which represents deviations in the range of 2%–12%.

Original language	English
Pages (from-to)	259-265
Number of pages	7
Journal	Renewable Energy
Volume	135
DOIs	https://doi.org/10.1016/j.renene.2018.11.095
State	Published - May 2019

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Energy conversion
Numerical validation
Solar concentrator
Solar energy
Stirling engine
Thermal analysis

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10.1016/j.renene.2018.11.095

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@article{a602d6377f054f35b013cb794ce3e698,

title = "Experimental analysis and numerical validation of the solar Dish/Stirling system connected to the electric grid",

abstract = "The use of solar-powered Stirling engines to convert thermal energy into electricity is a promising and renewable technological solution that can contribute to reducing dependence on fossil fuels for electricity generation. Unfortunately, the lack of experimental performance data and operating parameters for this type of technology limits its detailed characterization, difficult its modeling and design and consequently its utilization. This paper aims to validate the mathematical model of the Dish/Stirling system previously published by Mendoza et al. (2017) with the TRINUM system, installed at the Federal University of Itajub{\'a}-Brazil. For nominal conditions, the Dish/Stirling system generates an electric power of 1.00 kW at a solar irradiation of 725 W/m2 with a system overall efficiency of 17.6\%. The results show that for solar irradiance values between 520 and 950 W/m2 the experimental tests and the results of the mathematical modeling do not present considerable differences, obtaining an electric power of 1089 kWe and an efficiency of 17.98\%, which represents deviations in the range of 2\%–12\%.",

keywords = "Energy conversion, Numerical validation, Solar concentrator, Solar energy, Stirling engine, Thermal analysis",

author = "\{Mendoza Castellanos\}, \{Luis Sebasti{\'a}n\} and \{Galindo Noguera\}, \{Ana Lisbeth\} and \{Carrillo Caballero\}, \{Gaylord Enrique\} and \{De Souza\}, \{Andr{\'e} Leandro\} and \{Melian Cobas\}, \{Vladimir Rafael\} and \{Silva Lora\}, \{Electo Eduardo\} and Venturini, \{Osvaldo Jos{\'e}\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

month = may,

doi = "10.1016/j.renene.2018.11.095",

language = "Ingl{\'e}s",

volume = "135",

pages = "259--265",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Experimental analysis and numerical validation of the solar Dish/Stirling system connected to the electric grid

AU - Mendoza Castellanos, Luis Sebastián

AU - Galindo Noguera, Ana Lisbeth

AU - Carrillo Caballero, Gaylord Enrique

AU - De Souza, André Leandro

AU - Melian Cobas, Vladimir Rafael

AU - Silva Lora, Electo Eduardo

AU - Venturini, Osvaldo José

PY - 2019/5

Y1 - 2019/5

N2 - The use of solar-powered Stirling engines to convert thermal energy into electricity is a promising and renewable technological solution that can contribute to reducing dependence on fossil fuels for electricity generation. Unfortunately, the lack of experimental performance data and operating parameters for this type of technology limits its detailed characterization, difficult its modeling and design and consequently its utilization. This paper aims to validate the mathematical model of the Dish/Stirling system previously published by Mendoza et al. (2017) with the TRINUM system, installed at the Federal University of Itajubá-Brazil. For nominal conditions, the Dish/Stirling system generates an electric power of 1.00 kW at a solar irradiation of 725 W/m2 with a system overall efficiency of 17.6%. The results show that for solar irradiance values between 520 and 950 W/m2 the experimental tests and the results of the mathematical modeling do not present considerable differences, obtaining an electric power of 1089 kWe and an efficiency of 17.98%, which represents deviations in the range of 2%–12%.

AB - The use of solar-powered Stirling engines to convert thermal energy into electricity is a promising and renewable technological solution that can contribute to reducing dependence on fossil fuels for electricity generation. Unfortunately, the lack of experimental performance data and operating parameters for this type of technology limits its detailed characterization, difficult its modeling and design and consequently its utilization. This paper aims to validate the mathematical model of the Dish/Stirling system previously published by Mendoza et al. (2017) with the TRINUM system, installed at the Federal University of Itajubá-Brazil. For nominal conditions, the Dish/Stirling system generates an electric power of 1.00 kW at a solar irradiation of 725 W/m2 with a system overall efficiency of 17.6%. The results show that for solar irradiance values between 520 and 950 W/m2 the experimental tests and the results of the mathematical modeling do not present considerable differences, obtaining an electric power of 1089 kWe and an efficiency of 17.98%, which represents deviations in the range of 2%–12%.

KW - Energy conversion

KW - Numerical validation

KW - Solar concentrator

KW - Solar energy

KW - Stirling engine

KW - Thermal analysis

UR - https://www.scopus.com/pages/publications/85059308465

U2 - 10.1016/j.renene.2018.11.095

DO - 10.1016/j.renene.2018.11.095

M3 - Artículo Científico

AN - SCOPUS:85059308465

SN - 0960-1481

VL - 135

SP - 259

EP - 265

JO - Renewable Energy

JF - Renewable Energy

ER -

Experimental analysis and numerical validation of the solar Dish/Stirling system connected to the electric grid

Abstract

UN SDGs

Keywords

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