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Diurnal thermal behavior of photovoltaic panel with phase change materials under different weather conditions

Title
Diurnal thermal behavior of photovoltaic panel with phase change materials under different weather conditions
Authors
Lim J.-H.Lee Y.-S.Seong Y.-B.
Ewha Authors
임재한
SCOPUS Author ID
임재한scopus
Issue Date
2017
Journal Title
Energies
ISSN
1996-1073JCR Link
Citation
Energies vol. 10, no. 12
Keywords
Phase change materials (PCMs)Photovoltaic panelSolar energySpecific heat capacityThermal conductivity
Publisher
MDPI AG
Indexed
SCIE; SCOPUS scopus
Document Type
Article
Abstract
The electric power generation efficiency of photovoltaic (PV) panels depends on the solar irradiation flux and the operating temperature of the solar cell. To increase the power generation efficiency of a PV system, this study evaluated the feasibility of phase change materials (PCMs) to reduce the temperature rise of solar cells operating under the climate in Seoul, Korea. For this purpose, two PCMs with different phase change characteristics were prepared and the phase change temperatures and thermal conductivities were compared. The diurnal thermal behavior of PV panels with PCMs under the Seoul climate was evaluated using a 2-D transient thermal analysis program. This paper discusses the heat flow characteristics though the PV cell with PCMs and the effects of the PCM types and macro-packed PCM (MPPCM) methods on the operating temperatures under different weather conditions. Selection of the PCM type was more important than the MMPCM methods when PCMs were used to enhance the performance of PV panels and the mean operating temperature of PV cell and total heat flux from the surface could be reduced by increasing the heat transfer rate through the honeycomb grid steel container for PCMs. Considering the mean operating temperature reduction of 4°C by PCM in this study, an efficiency improvement of approximately 2% can be estimated under the weather conditions of Seoul. © 2017 by the authors.
DOI
10.3390/en10121983
Appears in Collections:
엘텍공과대학 > 건축공학전공 > Journal papers
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