Preparation and properties of lauric acid–stearic acid/expanded perlite composite as phase change materials for thermal energy storage

Jiao, Chunlei; Ji, Baohua; Fang, Dong

doi:10.1016/j.matlet.2011.09.099

Cited by 90 publications

(55 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Expanded perlite (EP) is a white granular material that has honeycomb structure internally. The porous structure can prevent the leakage of fatty acids during phase change process due to the effect of capillary and surface tension forces [18][19][20]. This study fixed capric acid-palmitic acid eutectic in pores of EP by means of vacuum impregnation method (VA method), and then prepared thermal-regulated gypsum board by mixing the prepared CA-PA/EP composite PCM and gypsum.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of gypsum based energy storage materials with capric acid–palmitic acid/expanded perlite composite PCM

Zhang

Guan

Song

et al. 2015

Energy and Buildings

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Preparation and properties of gypsum based energy storage materials with capric acid–palmitic acid/expanded perlite composite PCM

Zhang

Guan

Song

et al. 2015

Energy and Buildings

View full text Add to dashboard Cite

“…And variety of fatty acids and their eutectic mixture have been widely applied as PCMs for thermal energy storage in solar heating and cooling applications in recent years [5][6][7][8]. But the phase change temperature of a single fatty acid is so narrow that it can not match with the practical requirements.…”

Section: Introductionmentioning

confidence: 99%

Preparation and thermal properties of fatty acids/CNTs composite as shape-stabilized phase change materials

Meng

Zhang

Sun

et al. 2012

J Therm Anal Calorim

View full text Add to dashboard Cite

A series of fatty acids/carbon nanotubes (CNTs) composite shape-stabilized PCMs were prepared through infiltration method by using the eutectic mixture of capric acid, lauric acid, and palmitic acid as phase change materials, multi-walled CNTs as a supporting material. Nitrogen adsorption-desorption curves and SEM images of composite shape-stabilized PCMs indicate that the eutectic mixture was effectively absorbed into the porous structure of the CNTs. DSC thermograms show that the composite fatty acids/CNTs possess good phase change behavior. And the latent heat of the sample absorbed with 80 wt% fatty acids can achieve 101.6 J g -1 in the melting process and its phase change temperatures and latent heat almost remain unchanged in 30 times of thermal cycling. Moreover, the thermal conductivity of the composite materials are significantly improved (up to 0.6661 W m -1 k -1 ) due to the addition of the highly thermal conductive CNTs.

show abstract

“…However, the small deviation between the values can be due to the partial inhibition of phase change of PCMs confined by the porous network of the PBMs [27]. On the other hand, when compared to the LHTES properties with different BCPCMs reported in literature [26][27][28][31][32][33][34][35][36][37][45][46][47][48][49][50][51][52][53][54][55][56][57], it can be also concluded that the prepared BCPCMs have substantial TES potential and can be used to reduce air conditioning loads in buildings.…”

Section: Lhtes Properties Of the Prepared Bcpcmsmentioning

confidence: 96%

“…Moreover, the adsorption capacity of PBM can be increased using appropriate method during the preparation of BCPCM. The integration of PCM with PBMs is adopted to different techniques such as usage of proper solvent [26][27][28], direct absorption during production process of PBMs [29][30][31], natural immersion by mixing, stirring, ultrasonic ways [32,33], and vacuum impregnation [34][35][36][37]. Among these methods, the latter is more attractive because of its being easy, low cost, allowing high absorption percent for PCM, not needing any solvent and thus having harmless effect on the environment.…”

Section: Introductionmentioning

confidence: 99%

Latent heat energy storage characteristics of building composites of bentonite clay and pumice sand with different organic PCMs

Sar

Alkan

Biçer

et al. 2014

Int. J. Energy Res.

View full text Add to dashboard Cite

In the present work, six new kinds of building composite PCMs (BCPCMs), PS/octadecane, BC/octadecane, PS/CA-MA, BC/CA-MA, PS/PEG1000, and BC/PEG1000 composites, were prepared by using vacuum impregnation method. The maximum percent of PCM in the composites was assigned to be 12, 13, 18, 23, 30, and 42 wt%, respectively. The form-stable BCPCMs were characterized using SEM, FT-IR, DSC, and TG analysis techniques. The characterization results showed the existence of homogenous dispersion of the PCM into the PBM matrixes. The DSC measurements indicated that the melting temperatures of the form-stable BCPCMs are in the range of 20-33°C while they have latent heats of melting in the range of about 28-55 J/g. These results make them promising BCPCMs for low temperature-passive TES applications in buildings. Thermal cycling test indicated that the prepared BCPCMs have good thermal reliability and chemical stability. TG analysis proved that the prepared BCPCMs have good thermal durability. In addition, the thermal conductivity of BCPCMs was enhanced considerably by addition of expanded graphite (EG). The improvement in thermal conductivity of the BCPCMs caused appreciably reduction in their melting times.

show abstract

Preparation and properties of lauric acid–stearic acid/expanded perlite composite as phase change materials for thermal energy storage

Cited by 90 publications

References 11 publications

Preparation and properties of gypsum based energy storage materials with capric acid–palmitic acid/expanded perlite composite PCM

Preparation and properties of gypsum based energy storage materials with capric acid–palmitic acid/expanded perlite composite PCM

Preparation and thermal properties of fatty acids/CNTs composite as shape-stabilized phase change materials

Latent heat energy storage characteristics of building composites of bentonite clay and pumice sand with different organic PCMs

Contact Info

Product

Resources

About