Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air
This paper presents an experimental study of a split type solar air conditioning system with evaporative pre-cooling at the condenser. The main objective of this research is to evaluate the thermal and electrical performance of the system under hot summer conditions in a Mediterranean climate. Previ...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad Miguel Hernández de Elche |
| Repositorio: | REDIUMH. Depósito Digital de la UMH |
| OAI Identifier: | oai:dspace.umh.es:11000/35398 |
| Acceso en línea: | https://hdl.handle.net/11000/35398 |
| Access Level: | acceso abierto |
| Palabra clave: | Solar refrigeration Evaporative cooling Efficiency Photovoltaics CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. Maquinaria |
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Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet airMartínez, Pedro JuanLucas Miralles, ManuelAguilar-Valero, Francisco JavierRuiz Ramírez, JavierVicente-Quiles, PedroSolar refrigerationEvaporative coolingEfficiencyPhotovoltaicsCDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. MaquinariaThis paper presents an experimental study of a split type solar air conditioning system with evaporative pre-cooling at the condenser. The main objective of this research is to evaluate the thermal and electrical performance of the system under hot summer conditions in a Mediterranean climate. Previous studies have separately shown the benefits of both condenser inlet air pre-cooling and photovoltaic solar cooling. The novelty of this work will be the study of the coupling of these two techniques in a real installation, where the viability of the system depends on the component-level design and the operating conditions, since weather variables such as ambient temperature, relative humidity and solar radiation significantly affect the thermal behaviour of the refrigeration cycle, the evaporative pre-cooling capacity and the performance of the photovoltaic panels. Experimental tests were carried out over a summer season to evaluate the behaviour of the system and to obtain performance correlations validated with experimental data. These correlations will allow the modelling of the system and will be used to carry out an economic and environmental feasibility study of the proposed hybrid solar air conditioning system. The results show that a 100 mm-thick evaporative pad achieved an average evaporative cooling efficiency for all tests performed of ɛ , reducing the air inlet temperature to the condenser by around 6 °C. This resulted in an 18.3 % improvement in the of the air conditioner. In addition, the use of evaporative pre-cooling resulted in a significant 23 % reduction in peak power consumption. The study also evaluated the impact of the air pressure drop caused by the evaporative pad when not in use, with results favouring its installation. The system achieved a solar contribution of more than 30 % under different solar radiation conditions when using pre-cooling, compared to 25 % with a standard condenser. In addition, the combination of photovoltaic contribution and evaporative pre-cooling reduced energy consumption by 43 %.ElsevierDepartamentos de la UMH::Ingeniería Mecánica y Energía202520252024info:eu-repo/semantics/articleapplication/pdf19application/pdfhttps://hdl.handle.net/11000/35398reponame:REDIUMH. Depósito Digital de la UMHinstname:Universidad Miguel Hernández de ElcheInglés248Bhttps://doi.org/10.1016/j.applthermaleng.2024.123335info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:dspace.umh.es:11000/353982026-05-27T13:36:21Z |
| dc.title.none.fl_str_mv |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| title |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| spellingShingle |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air Martínez, Pedro Juan Solar refrigeration Evaporative cooling Efficiency Photovoltaics CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. Maquinaria |
| title_short |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| title_full |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| title_fullStr |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| title_full_unstemmed |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| title_sort |
Experimental study of an on-grid hybrid solar air conditioner with evaporative pre-cooling of condenser inlet air |
| dc.creator.none.fl_str_mv |
Martínez, Pedro Juan Lucas Miralles, Manuel Aguilar-Valero, Francisco Javier Ruiz Ramírez, Javier Vicente-Quiles, Pedro |
| author |
Martínez, Pedro Juan |
| author_facet |
Martínez, Pedro Juan Lucas Miralles, Manuel Aguilar-Valero, Francisco Javier Ruiz Ramírez, Javier Vicente-Quiles, Pedro |
| author_role |
author |
| author2 |
Lucas Miralles, Manuel Aguilar-Valero, Francisco Javier Ruiz Ramírez, Javier Vicente-Quiles, Pedro |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Departamentos de la UMH::Ingeniería Mecánica y Energía |
| dc.subject.none.fl_str_mv |
Solar refrigeration Evaporative cooling Efficiency Photovoltaics CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. Maquinaria |
| topic |
Solar refrigeration Evaporative cooling Efficiency Photovoltaics CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. Maquinaria |
| description |
This paper presents an experimental study of a split type solar air conditioning system with evaporative pre-cooling at the condenser. The main objective of this research is to evaluate the thermal and electrical performance of the system under hot summer conditions in a Mediterranean climate. Previous studies have separately shown the benefits of both condenser inlet air pre-cooling and photovoltaic solar cooling. The novelty of this work will be the study of the coupling of these two techniques in a real installation, where the viability of the system depends on the component-level design and the operating conditions, since weather variables such as ambient temperature, relative humidity and solar radiation significantly affect the thermal behaviour of the refrigeration cycle, the evaporative pre-cooling capacity and the performance of the photovoltaic panels. Experimental tests were carried out over a summer season to evaluate the behaviour of the system and to obtain performance correlations validated with experimental data. These correlations will allow the modelling of the system and will be used to carry out an economic and environmental feasibility study of the proposed hybrid solar air conditioning system. The results show that a 100 mm-thick evaporative pad achieved an average evaporative cooling efficiency for all tests performed of ɛ , reducing the air inlet temperature to the condenser by around 6 °C. This resulted in an 18.3 % improvement in the of the air conditioner. In addition, the use of evaporative pre-cooling resulted in a significant 23 % reduction in peak power consumption. The study also evaluated the impact of the air pressure drop caused by the evaporative pad when not in use, with results favouring its installation. The system achieved a solar contribution of more than 30 % under different solar radiation conditions when using pre-cooling, compared to 25 % with a standard condenser. In addition, the combination of photovoltaic contribution and evaporative pre-cooling reduced energy consumption by 43 %. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2025 2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/11000/35398 |
| url |
https://hdl.handle.net/11000/35398 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
248 B https://doi.org/10.1016/j.applthermaleng.2024.123335 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| dc.format.none.fl_str_mv |
application/pdf 19 application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:REDIUMH. Depósito Digital de la UMH instname:Universidad Miguel Hernández de Elche |
| instname_str |
Universidad Miguel Hernández de Elche |
| reponame_str |
REDIUMH. Depósito Digital de la UMH |
| collection |
REDIUMH. Depósito Digital de la UMH |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
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1869402676536541184 |
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15,81155 |