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A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system
Xie, Shaolei1; Sun, Jinhe1; Wang, Zhao2; Liu, Shang2; Han, Lipeng2; Ma, Guixiang2; Jing, Yan1; Jia, Yongzhong1
2017-08-01
Source PublicationSOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume168Pages:38-44
SubtypeArticle
AbstractAn oxalic acid dihydrate/boric acid (OCD-BA) binary eutectic mixtures containing 88 wt% OCD and 12 wt% BA was investigated as a novel phase change material (PCM) with high latent heat and thermal stability. The solid liquid phase diagram of binary systems is established, and the phase change temperature of OCD-BA binary eutectic mixture is 87.3 degrees C and the latent heats of the melting and crystallization process are 344 J g(-1) and 262 J g(-1), respectively. Its thermophysical properties and thermal stability were studied using differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Scanning electron microscopy-Energy dispersive spectroscopy (SEM-EDS). Its thermal stability was investigated in situ through 100 cycles using DSC and 1000 thermal cycling tests using Refrigerated and heating circulators (RHC). The latent heat of melting still exceed 280 J g(-1) after 1000 heating/cooling cycles. The heat release platform sustained 5 h at more than 70.0 degrees C, and the degree of supercooling was only 1.0 degrees C according to T-history method. These results indicate that the newly prepared OCD-BA binary eutectic mixture is a potential PCM for thermal storage tanks.
KeywordOxalic Acid Dihydrate Boric Acid Eutectic Phase Change Materials (Pcms) Thermal Stability
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS KeywordCHANGE MATERIALS PCMS ; ENERGY-STORAGE ; STEARIC-ACID ; N-OCTADECANE ; MIXTURES ; TANK ; EQUILIBRIUM ; PERFORMANCE ; CHLORIDE
Indexed BySCI
Language英语
WOS Research AreaEnergy & Fuels ; Materials Science ; Physics
WOS SubjectEnergy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000405883900006
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6236
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, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xie, Shaolei,Sun, Jinhe,Wang, Zhao,et al. A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2017,168:38-44.
APA Xie, Shaolei.,Sun, Jinhe.,Wang, Zhao.,Liu, Shang.,Han, Lipeng.,...&Jia, Yongzhong.(2017).A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system.SOLAR ENERGY MATERIALS AND SOLAR CELLS,168,38-44.
MLA Xie, Shaolei,et al."A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system".SOLAR ENERGY MATERIALS AND SOLAR CELLS 168(2017):38-44.
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