RETRACTED: Preparation and thermal properties of form stable paraffin phase change material encapsulation

Liu, Xing; Liu, Hongyan; Wang, Shujun; Zhang, Lu; Cheng, Hua

doi:10.1016/j.enconman.2005.10.031

Cited by 78 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Much attention has been paid to the form-stable phase change materials (PCM) in recent years, which represent a rational alternative to traditional PCM. Among the various kinds of the form-stable PCM of interest, paraffin has been found to exhibit many desirable characteristics, such as high heat of fusion, varied phase change temperature, negligible super-cooling, lower vapor pressure in the melt, chemically inert and stable, self-nucleating, no phase segregation and commercial availability at reasonable cost [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties studies of halogen-free flame retardant form-stable phase change materials based on paraffin/high density polyethylene composites

et al. 2008

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Preparation and properties studies of halogen-free flame retardant form-stable phase change materials based on paraffin/high density polyethylene composites

et al. 2008

View full text Add to dashboard Cite

“…Enthalpy values similar to those shown in Table 4 were obtained, e.g., by J. Jeon et al 20 and X. Liu at al. 23 who obtained, for paraffinic waxes, enthalpies of fusion of 144.6 J/g and 153.5 J/g, respectively. Comparing the measured data with the enthalpy values provided on product sheets, the values obtained in our case were lower, especially for the Rubitherm materials.…”

Section: Resultsmentioning

confidence: 99%

Effect of the mode and dynamics of thermal processes on DSC-acquired phase-change temperature and latent heat of different kinds of PCM

Fořt¹,

Pavlík²,

Trník³

et al. 2017

Mater. Tehnol.

View full text Add to dashboard Cite

Thermal-energy-storage systems utilizing phase-change materials (PCMs) can find use in many fields, such as solar-energy storage, waste-heat recovery or smart air conditioning in buildings. However, their incorporation into certain building elements and possible utilization of thermal energy are related to the proper understanding of phase-change processes. In this paper, thermophysical properties of five different PCMs were characterised in order to find suitable materials for incorporation into lightweight plasters capable of moderating the interior microclimate of buildings. A DSC analysis as the main investigation method was applied in the range of -10°C to 55°C, with the heating/cooling rates of (1, 5, 10 and 20)°C /min. Based on the DSC data, the temperatures and enthalpies of the phase change were determined as functions of both the modes and dynamics of the simulated thermal process. The obtained results were discussed and proper PCM candidates for an application in lightweight interior plasters were identified. Keywords: phase-change materials, differential scanning calorimetry, phase-change temperature Sistemi za skladi{~enje toplotne energije, ki izkori{~ajo fazne spremembe v materialih (angl. PCMs; Phase Change Materials), se uporabljajo na mnogih podro~jih, kot na primer pri pridobivanju in skladi{~enju son~ne energije, izkori{~anju odpadne toplote, ali v inteligentnih prezra~evalnih sistemih stavb. Kakorkoli, njihova vgradnja v dolo~ene gradbene elemente in mo`no izkori{~anje odpadne toplote, je povezana z ustreznim razumevanjem faznih sprememb. V tem prispevku so bile dolo~ene termo-fizikalne lastnosti petih razli~nih PC materialov, da bi na{li ustrezne materiale za vklju~itev v lahke omete, ki bi bili sposobni uravnavati notranjo mikroklimo stavb. Kot glavna preiskovalna metoda je bila uporabljena DSC (diferencialna vrsti~na kalorimetrija) analiza v temperaturnem obmo~ju med -10°C in 55°C, s hitrostjo ogrevanja/hlajenja (1, 5, 10 in 20)°C/min. Glede na podatke DSC-analize, so bile dolo~ene temperature in entalpije faznih sprememb v odvisnosti od obeh na~inov in dinamike simuliranega termi~nega procesa. Dobljeni rezultati so bili pre{tudirani in najdeni so bili ustrezni PCM-materiali za uporabo v lahkih notranjih ometih. Klju~ne besede: materiali s faznimi spremembami, diferen~na dinami~na kalorimetrija, temperatura fazne spremembe

show abstract

“…Using poly-olefin as supporting materials, lipophilicity limits applications of this composite. Liu et al [9] modified the shape-stabilized PCMs using an inorganic silica gel to improve its hydrophilic property and Zhang et al [10,11] selected the inorganic porous materials (such as hyadite and shale) as supporting materials to fabricate shape-stabilized PCMs for application to buildings. The objective of this study is to prepare the composite of paraffin wax/silica as shape-stabilized PCMs using in situ condensation and to investigate its morphology and its thermal properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation of shape-stabilized phase change materials as temperature-adjusting powder

Gang

Miao

Yao

et al. 2007

Front. Mater. Sci. China

View full text Add to dashboard Cite

The shape-stabilized phase change materials (PCMs) composed of paraffin wax and silica were prepared in O/W emulsion with cetyl trimethylamine bromide as emulsifier and n-pentanol as assist emulsifier. The paraffin wax (with melting temperature of 29°C, crystallizing temperature of 26°C and latent heat of 142 J/g) served as latent heat storage material and the silica as supporting material, which prevented the leakage of the melted paraffin wax. Silica supporting material was formed in situ via hydrolysis and condensation from low-cost sodium silicate solution with chlorhydric acid and ammonium bicarbonate as neutralizing agent. The thermogravimetry (TG) curves show that the composite has a thermal stability superior to that of paraffin wax and that the content of paraffin wax in the composite is 65wt%. The maximum latent heat and its relevant melting point of composite are 95 J/g and 30°C, respectively.

show abstract

RETRACTED: Preparation and thermal properties of form stable paraffin phase change material encapsulation

Cited by 78 publications

References 0 publications

Preparation and properties studies of halogen-free flame retardant form-stable phase change materials based on paraffin/high density polyethylene composites

Preparation and properties studies of halogen-free flame retardant form-stable phase change materials based on paraffin/high density polyethylene composites

Effect of the mode and dynamics of thermal processes on DSC-acquired phase-change temperature and latent heat of different kinds of PCM

Preparation of shape-stabilized phase change materials as temperature-adjusting powder

Contact Info

Product

Resources

About