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Grant support

This work was partially funded by the Spanish Government Research grant M. C. T. CLIMABCAR project DPI 2003-01567, the MINICON project (FIT 0204-2004-68 and FIT 020100-2003-233) and the SACSCC project (ENE 2007-63965). Their contributions are greatly appreciated. The authors also express a special acknowledgement to the laboratory technicians Mr. Manuel Santos and Mr. Carlos Cobos for their help with the solar facility setup and maintenance.

Analysis of institutional authors

Rodriguez-Hidalgo, M. C.Author

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June 9, 2019
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Instantaneous performance of solar collectors for domestic hot water, heating and cooling applications

Publicated to:Energy And Buildings. 45 152-160 - 2012-02-01 45(), DOI: 10.1016/j.enbuild.2011.10.060

Authors: Rodriguez-Hidalgo, M. C.; Rodriguez-Aumente, P. A.; Lecuona, A.; Nogueira, J.;

Affiliations

Univ Carlos III Madrid, Grp ITEA, Dept Ingn Term & Fluidos, Madrid 28911, Spain - Author
Univ Politecn Madrid, Dept Sistemas Ocean & Navales, E-28040 Madrid, Spain - Author

Abstract

This study has been carried out with a building experimental solar facility based on a 9-year-old field of 50 m(2) flat plate solar collectors located south of Madrid, Spain. Building domestic hot water production and heating and cooling applications were implemented in the facility. Experimental data corresponding to 100 operating variables (mainly temperatures and flow rates) were recorded during an entire year at intervals of 10 min, and from this data, all of the relevant performance parameters were derived. Three thermocouples measured the centre point instantaneous temperatures of the glass cover, the box back surface and the absorber plate of one of the collectors. A 1D collector transient model, based on thermal resistances and capacitances, has been developed and validated with the experimental database. Both experimental and modelled collector thermal energy output and outlet temperatures were obtained under instantaneous real operating conditions. The individual effect on the drop of the thermal energy output can be summarised in the following yearly averaged values: 15.0% due to collector surface aging, 15.7% due to thermal loss produced by wind velocity magnitude and direction, +/- 3.2% variations due to thermal capacitance and 7.6% due to incident angle of irradiance. Finally, the repercussions on the performance of the real applications are discussed. (C) 2011 Elsevier B.V. All rights reserved.

Keywords

Dynamic methodEfficiency transient-behaviorEnergyFlat plate collectorFlat-plate collectorsFlowSimulationSolar coolingSolar domestic applicationsSolar heatingSolar thermal energyTransient collector performance

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Energy And Buildings due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2012, it was in position 7/122, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Civil.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 7.65, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-08, the following number of citations:

  • WoS: 19
  • Scopus: 20

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-08:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 63 (PlumX).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (RODRIGUEZ HIDALGO, MARIA DEL CARMEN) .