Investigation on designed fins-enhanced phase change materials system for thermal management of a novel building integrated concentrating PV

Wei Lu, Zhishan Liu, Jan-Frederik Flor, Yupeng Wu and Mo Yang

Applied Energy, 2018, vol. 225, issue C, 696-709

Abstract: The solar to electrical conversion efficiency of the silicon based photovoltaics (PV) system decreases with its temperature increase, therefore, the thermal management of PV becomes important to improve PV power generation. In this paper, a designed Phase Change Material (PCM) system is integrated into the rear part of a novel building integrated concentrating PV system to moderate its temperature rise. The heat transfer of the developed concentrating PV/PCM system has been studied experimentally and numerically. A numerical 3D model was developed to predict the temperature distribution of the PCM during the phase change process and the predicted results agreed well with the experimental measurement. It was found that the addition of the PCM system to the concentrating PV system can reduce during the phase change process the solar induced temperature rise by over 20 °C. This can lead to approximate 10% increase in solar to electrical conversion efficiency. Furthermore, numerical simulations have been carried out to optimize the heat transfer within the PCM through installing horizontal and vertical aluminium fins with different thicknesses. It was found out that, both, the horizontal and vertical fins can improve the thermal performance of the PCM system. In addition, the system with vertical fins shows better performance on maintaining the temperature of the PV cells. At a solar irradiation exposure of 670 W/m2 the PCM system, enhanced by vertical fins, can reduce the temperature of the concentrating PV system during the phase change process by 25 °C, when compared to the PV system without PCM.

Keywords: Photovoltaic cells; Designed PCM container; Experimental tests; Numerical simulations (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (16)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261918307232
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:225:y:2018:i:c:p:696-709

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2018.05.030

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().