Preparation, thermal and rheological properties of hybrid nanocomposite phase change material for thermal energy storage

Parameshwaran, R.; Kunhappan, Deepak; Saravanan, R.; Kalaiselvam, S.

doi:10.1016/j.apenergy.2013.11.029

Cited by 98 publications

(27 citation statements)

References 47 publications

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“…Compared to the pure PCM, the freezing time and melting time of the mixture were reduced by 30.8 and 11.3% respectively, when the weight fraction of silver particles was 5.0% [38]. The use of silver-titania hybrid nano-composite with the mass fraction ranging from 0.1 to 1.5% showed that the thermal conductivity of the nano-enhanced PCM was improved by 10-52% and energy savings can be obtained due to the reduction of the freezing time [101]. Parameshwaran and Kalaiselvam [102] experimentally investigated the performance of a chilled water based variable air volume air conditioning system by integrating a PCM thermal storage system with silver nanoparticles.…”

Section: Application Of Nano-enhanced Pcms In Buildingsmentioning

confidence: 88%

“…Parameshwaran et al [38,101] investigated the thermal properties of ester embedded with silver nanoparticles and silver-titania hybrid nano-composite for thermal energy storage applications in buildings. Compared to the pure PCM, the freezing time and melting time of the mixture were reduced by 30.8 and 11.3% respectively, when the weight fraction of silver particles was 5.0% [38].…”

Section: Application Of Nano-enhanced Pcms In Buildingsmentioning

confidence: 99%

See 1 more Smart Citation

Nano-enhanced phase change materials for improved building performance

Lin

Sohel

2016

Renewable and Sustainable Energy Reviews

161

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Nano-enhanced phase change materials (PCMs) have attracted increasing attention to address one of the key barriers (i.e. low thermal conductivity) to the wide adoption of PCMs in many industrial applications. This paper discusses the generic problem and key issues associated with appropriately using this new class of materials in buildings for effective thermal management and improved energy performance. An overview on major recent development and application of nano-enhanced PCMs as thermal energy storage media is provided. A case study based on a PCM ceiling ventilation system integrated with solar photovoltaic thermal (PVT) collectors is then performed to evaluate the potential benefits due to the dispersion of copper nanoparticles into the PCM base fluid of RT24. The results showed that this nano-enhanced PCM has higher melting and solidification rates than that of the pure PCM. Compared to the use of the pure PCM, 8.3% more heat was charged in and 25.1% more heat was discharged from the nano-enhanced PCM under the three winter test days. More research is needed to understand the fundamental mechanisms behind the PCM thermal conductivity enhancement through the dispersion of nanometer-sized materials and to investigate how these mechanisms drive building performance enhancement. Abstract: Nano-enhanced phase change materials (PCMs) have attracted increasing attention to address one of the key barriers (i.e. low thermal conductivity) to the wide adoption of PCMs in many industrial applications. This paper discusses the generic problem and key issues associated with appropriately using this new class of materials in buildings for effective thermal management and improved energy performance. An overview on major recent development and application of nano-enhanced PCMs as thermal energy storage media is provided. A case study based on a PCM ceiling ventilation system integrated with solar photovoltaic thermal (PVT) collectors is then performed to evaluate the potential benefits due to the dispersion of copper nanoparticles into the PCM base fluid of RT24. The results showed that this nano-enhanced PCM has higher melting and solidification rates than that of the pure PCM. Compared to the use of the pure PCM, 8.3% more heat was charged in and 25.1% more heat was discharged from the nano-enhanced PCM under the three winter test days. More research is needed to understand the fundamental mechanisms behind the PCM thermal conductivity enhancement through the dispersion of nanometer-sized materials and to investigate how these mechanisms drive building performance enhancement.

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Section: Application Of Nano-enhanced Pcms In Buildingsmentioning

confidence: 88%

Section: Application Of Nano-enhanced Pcms In Buildingsmentioning

confidence: 99%

Nano-enhanced phase change materials for improved building performance

Lin

Sohel

2016

Renewable and Sustainable Energy Reviews

161

View full text Add to dashboard Cite

show abstract

“…In recent times, dedicated research studies have been performed on embedding hybrid nanocomposite (HyNC) materials into organic ester PCMs to enable them to be considered as potential candidates for cooling applications [214][215][216][217][218]. The organic ester PCMs utilized in these studies include EC, dimethyl adipate (DMA), and methyl cinnamate (MC).…”

Section: Continuedmentioning

confidence: 99%

“…Through the active works performed by the research group [214][215][216][217][218], the potential thermal storage properties of these organic ester PCMs embedded with different nanomaterials have been explored. The attributes related to these organic compounds to serve as PCMs have not been explored in the past.…”

Section: Continuedmentioning

confidence: 99%

Nanotechnology in Thermal Energy Storage

Kalaiselvam

Parameshwaran

2014

Thermal Energy Storage Technologies for Sustainability

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“…Hexagonal boron nitride nanosheets [12], herringbone style graphite nanofibers [13], Fe 3 O 4 nanoparticles [14], carbon nanotubes [15,16], carbon nanofibers [17] and graphene nanoplatelets [16,17] were proposed as promising nanofillers for preparing high-conductivity composite PCMs. However, Parameshwaran et al [18] found that increasing mass loading of nanocomposite resulted in 4% increased viscosity of PCM. So one disadvantage of dispersing high-conductivity nanomaterials into PCM is that the viscosity of the composite PCM in liquid phase increases drastically weakening or even eliminating the natural convection effect, which in turn may overweigh the enhanced heat conduction realized by thermal conductivity enhancement [16].…”

Section: Introductionmentioning

confidence: 98%