Phase change materials for limiting temperature rise in building integrated photovoltaics

Huang, Ming Jun; Eames, Philip C.; Norton, Brian

doi:10.1016/j.solener.2005.10.006

Cited by 327 publications

(104 citation statements)

References 10 publications

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“…Passive cooling of BIPV with solid-liquid PCMs were experimentally and numerically evaluated using a paraffin wax as PCM and a rectangular aluminum container with internal dimension of (300 mm × 132 mm × 40 mm) having selectively coated front surface with a MAXORB (provided by INCO Selective Surfaces, Hereford, UK) selective solar absorbing film which has radiative properties similar to silicon to mimic a layer of PV cell [20] attached to the surface. Temperature distribution on the front surface and inside the PCM was predicted through 2D and 3D finite volume heat transfer models and were experimentally validated [21,22]. Building on this work, Hasan et al [23] fabricated and characterized four different heat sinks attached to PV cell to investigate performance of five different types of PCM to find out the optimum PCM and the heat sink for this application.…”

Section: Introductionmentioning

confidence: 99%

Energy and Cost Saving of a Photovoltaic-Phase Change Materials (PV-PCM) System through Temperature Regulation and Performance Enhancement of Photovoltaics

et al. 2014

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Abstract:The current research seeks to maintain high photovoltaic (PV) efficiency and increased operating PV life by maintaining them at a lower temperature. Solid-liquid phase change materials (PCM) are integrated into PV panels to absorb excess heat by latent heat absorption mechanism and regulate PV temperature. Electrical and thermal energy efficiency analysis of PV-PCM systems is conducted to evaluate their effectiveness in two different climates. Finally costs incurred due to inclusion of PCM into PV system and the resulting benefits are discussed in this paper. The results show that such systems are financially viable in higher temperature and higher solar radiation environment. Keywords

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Section: Introductionmentioning

confidence: 99%

Energy and Cost Saving of a Photovoltaic-Phase Change Materials (PV-PCM) System through Temperature Regulation and Performance Enhancement of Photovoltaics

et al. 2014

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“…Despite the higher conductivity, compared to usual insulation materials used in buildings, PCM have been proved efficient in reducing peak heat fluxes by as much as 38% [14]. Indeed this property makes them ideal for passive heat storage in different building applications such as in the envelope of the building, in radiant floor heating systems, in free cooling systems, in photovoltaic elements and in building integrated PV [15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

On the Efficacy of PCM to Shave Peak Temperature of Crystalline Photovoltaic Panels: An FDM Model and Field Validation

Brano¹,

Ciulla²,

Piacentino³

et al. 2013

Energies

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Abstract:The exploitation of renewable energy sources and specifically photovoltaic (PV) devices have been showing significant growth; however, for a more effective development of this technology it is essential to have higher energy conversion performances. PV producers often declare a higher efficiency respect to real conditions and this deviation is mainly due to the difference between nominal and real temperature conditions of the PV. In order to improve the solar cell energy conversion efficiency many authors have proposed a methodology to keep the temperature of a PV system lower: a modified crystalline PV system built with a normal PV panel coupled with a Phase Change Material (PCM) heat storage device. In this paper a thermal model analysis of the crystalline PV-PCM system based on a theoretical study using finite difference approach is described. The authors developed an algorithm based on an explicit finite difference formulation of energy balance of the crystalline PV-PCM system. Two sets of recursive equations were developed for two types of spatial domains: a boundary domain and an internal domain. The reliability of the developed model is tested by a comparison with data coming from a test facility. The results of numerical simulations are in good agreement with experimental data.Keywords: phase change material; crystalline photovoltaic modules; heat storage; finite difference method; experimental validation

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“…The system is compared with conventional air-cooling arrangements both experimentally and using numerical simulation [2,6]. It has been found that using a PCM "RT27" with metal fins can significantly moderate the temperature rise of the PV in a PV/PCM system.…”

Section: Introductionmentioning

confidence: 99%

Including embodied energy considerations at the conceptual stage of building design

Yohanis

Norton²

2006

Proceedings of the Institution of Mechanical Engineers, Part A:

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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 by crystallization 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 crystallization 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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Phase change materials for limiting temperature rise in building integrated photovoltaics

Cited by 327 publications

References 10 publications

Energy and Cost Saving of a Photovoltaic-Phase Change Materials (PV-PCM) System through Temperature Regulation and Performance Enhancement of Photovoltaics

Energy and Cost Saving of a Photovoltaic-Phase Change Materials (PV-PCM) System through Temperature Regulation and Performance Enhancement of Photovoltaics

On the Efficacy of PCM to Shave Peak Temperature of Crystalline Photovoltaic Panels: An FDM Model and Field Validation

Including embodied energy considerations at the conceptual stage of building design

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