https://revistas.ucr.ac.cr/index.php/agromesoAgronomía Mesoamericana ISSN electrónico: 2215-3608

Evaluation of thermal and photovoltaic solar systems in agricultural production units, Northern Huetar Region, Costa Rica

Tomás de Jesús Guzmán Hernández, Freddy Araya Rodríguez, Javier Mauricio Obando Ulloa, Mikel Rivero Marcos, Guillermo Castro Badilla



DOI: https://doi.org/10.15517/ma.v28i3.26442

Abstract


The dependence on fossil fuels urges society to seek for clean energy alternatives, in order to mitigate the effects of climate change. The objective of this study was to determine the potential of solar energy used for water heating and electricity generation. The study was conducted at the dairy of the Technology Institute of Costa Rica, San Carlos Headquarter, from May 15 to April 2016. The data related to the amount of the electricity produced and the temperature reached by water was obtained from the installed photovoltaic and thermal systems, the data was recorded by a computerized register. The obtained information about electricity production allowed researchers to calculate the amount of carbon dioxide equivalent that was not emitted into the atmosphere, and also the acquired economic saving on consumption. The use of these systems allowed the production unit have a self- sufficient source of electrical energy percentage, actually around 30 to 40% of the total electrical consumption. According to the energy production, the solar thermal system was capable to increase water temperature between 20 to 37 °C, temperature that represents more than 70% of the energy needed in order to reach the required water temperature (70 °C) for cleaning and sanitizing the milking equipment, and also an economical saving around $90 per month was achieved. The results showed that these systems allow to improve the economical and productive efficiency of agricultural production units in the Northern Huetar Region of Costa Rica.


Keywords


electrical energy; solar energy; agricultural production; photovoltaic system; thermal system.

References


ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers). 2003. Standard ANSI/ASHRAE 93-2003: Methods of testing to determine the thermal performance of solar collectors. ASHRAE, USA.

Benítez-Salazar, V.H., G.A. Torres-Valverde, L.A. Gámez-Valdéz, y J.H. Pacheco-Ramírez. 2013. Sistema fotovoltaico de iluminación solar. Epistemus 15:86-92.

Díaz, J.F. 2015. Conceptos de energía solar térmica. Blog eficiencia energética y utopía. https://juanfrancisco207.wordpress.com/2015/01/31/conceptos-de-energia-solar-termica/ (consultado 15 jul. 2016).

Espejo-Marín, C. 2004. La energía solar fotovoltaica en España. Nimbus 13-14:5-31.

González, J. 2009. Energías renovables. Editorial Reverté SA, ESP.

Henley, E.J. 1973. Sistemas de unidades. En: E.J. Henley, y E.M. Rosen, editores, Cálculo de balances de materia y energía. Editorial Reverté SA, ESP. p. 31-34.

ICE (Instituto Costarricense de Electricidad). 2015. Costa Rica: matriz eléctrica. gobierno.cr/wp-content/uploads/2015/06/matriz_folleto_ICE.pdf (consultado 8 jul. 2016).

Iglesias-Ferrer, J.M., y J. Morales-Salas. 2013. Dimensionado de un sistema térmico solar mediante simulación y su validación energética. Ingeniería Energética 34:55-65.

IMN (Instituto Meteorológico Nacional). 2016. Factores de emisión gases de efecto invernadero. 6a ed. IMN, CRC. http://cglobal.imn.ac.cr/documentos/factores-de-emision-gei-sexta-edicion (consultado 30 ene. 2017).

Joshi, S.V., R.S. Bokil, and J.K. Nayak. 2005. Test standards for thermosyphon-type solar domestic hot water system: review and experimental evaluation. Solar Energy 78:781-798.

Khan, M., A. Abdul-Malek, M. Mithu, and D. Das. 2010. Design, fabrication and performance evaluation of natural circulation rectangular box-type solar domestic water system. IJRER 2:164-177.

Lamela, A. 2005. La sostenibilidad, un reto global ineludible. Informes de la Construcción 57:499-500.

Matthews, C. 2006. La ganadería amenaza el medio ambiente. Organización de las naciones Unidas para la Agricultura y la Alimentación. http://www.fao.org/Newsroom/es/news/2006/1000448/index.html (consultado el 29 de jun. 2016).

MINAET (Ministerio de Ambiente, Energía y Telecomunicaciones). 2011. VI Plan Nacional de energía 2012-2013. http://www.dse.go.cr/es/03Publicaciones/01PoliticaEnerg/VI_Plan_Nacional_de_Energia_2012-2030.pdf (consultado 25 may. 2016).

Poling, B.E., J.M. Prausnitz, and R.C. Reid. 1987. The properties of gases and liquids. 4th ed. McGraw-Hill interamericana, ESP.

Prosperi, M., et A. Croci. 2005. Dossier solare térmico. Proyecto RES & RUE Disemination. http://www.ape.fvg.it/wp-content/uploads/dlm_uploads/2016/03/ADICONS-Solare-termico.pdf (consulté 15 jul. 2016).

Quirós, L. 2011. Construir América Central y el Caribe. Rev. Construir. http://revistaconstruir.com/construccion-sostenible-unreto-para-la-region/836/ (consultado 28 jun. 2016).

Shyam, S.N. 2005. La energía solar: conceptos básicos y su utilización. Universidad Nacional, Heredia, CRC. http://www.sistemamid.com/panel/uploads/biblioteca/2014-06-27_10-14-37105995.pdf (consultado 28 jun. 2016).

Taiz, L., and E. Zeiger. 2002. Photosynthesis: The light reactions. In: L. Taiz, editor, Plant physiology. 5th ed. Sinauer Associates Inc., MA, USA. p. 163-194.

Timmons, D., J. M. Harris, y B. Roach. 2014. La economía de las energías renovables. Tufts University, MA, USA. http://www.ase.tufts.edu/gdae/education_materials/modules/EconomiaEnergiasRenovables.pdf (consultado 3 oct. 2016).


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