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Caracterización de una bomba de calor fotovoltaica con conexión a la red eléctrica para generación de frío
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Abstract(s)
RESUMEN: Este artículo describe los resultados de la caracterización técnica de un prototipo de bomba de calor fotovoltaica (BC-FV) hibridada con la red eléctrica, para aplicaciones de generación de frío para climatización de espacios. Esta caracterización se ha realizado con un algoritmo de control “inverter”, caracterizado por regular la frecuencia del compresor de la BC para mantener una temperatura de consigna en la habitación. Se han efectuado dos ensayos para dos temperaturas de consigna de 18 ºC y 24 ºC. Se han calculado indicadores de rendimiento del generador FV -PR, PRPV,CEM y 3 factores de utilización-, de la BC -EER y SPF- y de todo el conjunto del sistema -SFFV y SPFBC-FV,CEM, que se obtienen combinando todos los anteriores-. Los resultados muestran un buen comportamiento de los componentes del sistema. La calidad del acoplamiento entre ellos viene determinada fundamentalmente por el aprovechamiento del generador FV por parte del compresor que, a su vez, depende del dimensionado y de la temperatura de consigna establecida.
ABSTRACT: This paper presents the results of the technical characterization of a photovoltaic heat pump (PV-HP) prototype connected to the electric grid, for space cooling applications. This characterization has been performed for an “inverter” control that regulates the frequency of the compressor for maintaining a certain temperature set point. Two test have been implemented for two different temperature set points, 18 ºC and 24 ºC. Several performance indicators have been calculated for the PV generator -PR, PRPV,CEM y 3 utilization ratios-, for the HP unit -EER y SPF- and for the whole system -SFFV y SPFBC-FV,CEM, which is obtained as a combination of all the others-. The results show a good performance of the system components. The quality of the coupling between them mosthly depends on the utilization of the PV generator, that is determined by the sizing of these components and by the temperature set point value.
ABSTRACT: This paper presents the results of the technical characterization of a photovoltaic heat pump (PV-HP) prototype connected to the electric grid, for space cooling applications. This characterization has been performed for an “inverter” control that regulates the frequency of the compressor for maintaining a certain temperature set point. Two test have been implemented for two different temperature set points, 18 ºC and 24 ºC. Several performance indicators have been calculated for the PV generator -PR, PRPV,CEM y 3 utilization ratios-, for the HP unit -EER y SPF- and for the whole system -SFFV y SPFBC-FV,CEM, which is obtained as a combination of all the others-. The results show a good performance of the system components. The quality of the coupling between them mosthly depends on the utilization of the PV generator, that is determined by the sizing of these components and by the temperature set point value.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Photovoltaic systems Heat pumps Cooling
Citation
Lorenzo, C... [et.al.] - Caracterización de una bomba de calor fotovoltaica con conexión a la red eléctrica para generación de frío. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 1267-1275
Publisher
LNEG - Laboratório Nacional de Energia e Geologia