Natural convection in an internally finned phase change material heat sink for the thermal management of photovoltaics

M. J. Huang, P.C Eames, B. Norton, Neil Hewitt

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

Elevated operating temperatures reduce the solar to electrical conversion efficiency of building integrated photovoltaic devices (BIPV). Phase change materials (PCM) can be used to passively limit this temperature rise although their effectiveness is limited by their low thermal conductivities and crystallisation segregation during solidification. This paper presents an experimental evaluation of the effects of convection and crystalline segregation in a PCM as a function of efficiency of heat transfer within the finned PV/PCM system. The thermal performances of bulk PCM with crystallisation segregation for different internal fin arrangements are presented. It is noted that the addition of internal fins improves the temperature control of the PV in a PV/PCM system.
LanguageEnglish
Pages1598-1603
JournalSolar Energy Materials and Solar Cells
Volume95
Issue number7
DOIs
Publication statusPublished - Jul 2011

Fingerprint

Phase change materials
Heat sinks
Natural convection
Crystallization
Temperature control
Conversion efficiency
Solidification
Thermal conductivity
Thermal management (electronics)
Crystalline materials
Heat transfer
Temperature

Keywords

  • Phase changematerial
  • Building integratedphotovoltaic
  • Convection

Cite this

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abstract = "Elevated operating temperatures reduce the solar to electrical conversion efficiency of building integrated photovoltaic devices (BIPV). Phase change materials (PCM) can be used to passively limit this temperature rise although their effectiveness is limited by their low thermal conductivities and crystallisation segregation during solidification. This paper presents an experimental evaluation of the effects of convection and crystalline segregation in a PCM as a function of efficiency of heat transfer within the finned PV/PCM system. The thermal performances of bulk PCM with crystallisation segregation for different internal fin arrangements are presented. It is noted that the addition of internal fins improves the temperature control of the PV in a PV/PCM system.",
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Natural convection in an internally finned phase change material heat sink for the thermal management of photovoltaics. / Huang, M. J.; Eames, P.C; Norton, B.; Hewitt, Neil.

In: Solar Energy Materials and Solar Cells, Vol. 95, No. 7, 07.2011, p. 1598-1603.

Research output: Contribution to journalArticle

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