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Preparation and Properties of Stearic Acid-Acetanilide Eutectic Mixture/Expanded Graphite Composite Phase-Change Material for Thermal Energy Storage
Ma, Guixiang1,2; Wang, Zhao1,2; Xie, Shaolei1; Sun, Jinhe1; Jia, Yongzhong1; Jing, Yan1; Du, Guangwei3
2018
Source PublicationENERGY TECHNOLOGY
Volume6Issue:1Pages:153-160
SubtypeArticle
AbstractIn this study, a series of binary mixtures of stearic acid (SA) and acetanilide (AA) at various mass fractions was prepared. A binary mixture of SA and AA with a ratio of 81.0: 19.0 mol% is a eutectic mixture with a melting temperature of (342.45 +/- 0.25) K and a melting latent heat of (220.04 +/- 10.02) J g(-1). To improve the thermal properties of the SA-AA eutectic mixture to obtain a composite phase-change material (CPCM) with a high thermal conductivity, large heat storage capacity, and good thermal stability and reliability for heat energy storage, expanded graphite (EG) at different mass fractions was added into the SA-AA eutectic mixture. The resulting material exhibited a remarkable energy storage capacity with a latent heat of 176.14 J g(-1). The thermal conductivity of the CPCM was enhanced by 14.5 times compared to that of the SA-AA eutectic mixture. The thermophysical properties of the SA-AA/EG CPCM after 100 accelerated thermal cycles were slightly decreased, which did not influence the heat storage. Thus, the prepared SA-AA/EG CPCM is a promising material for latent heat storage systems.
KeywordAcetanilide Phase-change Material Stearic Acid Thermal Conductivity Thermal Properties
WOS HeadingsScience & Technology ; Technology
WOS KeywordLATENT-HEAT STORAGE ; OLEIC-ACID ; BINARY-MIXTURES ; PALMITIC-ACID ; SYSTEM ; RELIABILITY ; PERFORMANCE ; BEHAVIOR ; ACETAMIDE ; PCM
Indexed BySCI
Language英语
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
WOS IDWOS:000424274700018
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6419
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qinghai Engn Consulting Ctr, Xining 810000, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Ma, Guixiang,Wang, Zhao,Xie, Shaolei,et al. Preparation and Properties of Stearic Acid-Acetanilide Eutectic Mixture/Expanded Graphite Composite Phase-Change Material for Thermal Energy Storage[J]. ENERGY TECHNOLOGY,2018,6(1):153-160.
APA Ma, Guixiang.,Wang, Zhao.,Xie, Shaolei.,Sun, Jinhe.,Jia, Yongzhong.,...&Du, Guangwei.(2018).Preparation and Properties of Stearic Acid-Acetanilide Eutectic Mixture/Expanded Graphite Composite Phase-Change Material for Thermal Energy Storage.ENERGY TECHNOLOGY,6(1),153-160.
MLA Ma, Guixiang,et al."Preparation and Properties of Stearic Acid-Acetanilide Eutectic Mixture/Expanded Graphite Composite Phase-Change Material for Thermal Energy Storage".ENERGY TECHNOLOGY 6.1(2018):153-160.
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