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Eutectic composition-dependence of latent heat of binary carbonates (Na2CO3/Li2CO3)
Ge, Zhiwei1; Huang, Yun1; Ding, Yulong2
2018-06-01
发表期刊SOLAR ENERGY MATERIALS AND SOLAR CELLS
ISSN0927-0248
卷号179页码:202-206
摘要Phase change materials (PCMs) are promising alternative candidates for a variety of thermal energy storage and related applications. Among the PCMs, alkali carbonates have received particular attention in recent years due to their favourable thermophysical properties at high temperatures. However, the use of such carbonates as PCM requires the understanding of the structural information of the material particularly at both the solid and molten states and the composition dependence of the latent heat, which are largely lacking. Here we study, by both experiments and molecular dynamics simulations, the latent heat of the binary carbonates Na2CO3/Li2CO3. The results show that the binary carbonates can convert to LiNaCO3 within a wide concentration range. A eutectic composition (EC) region of about 51 mol. % Li2CO3 has shown the largest conversion to the LiNaCO3. Any excess loading of Na2CO3 or Li2CO3 beyond the EC region of the carbonates could lower the activation energy of diffusion. The solidification of the carbonates leads to a higher phase change resistance in the EC region with a higher activation energy E-a((Pc)) and a larger latent heat during the phase change.
关键词Thermal Energy Storage Eutectic Composition Latent Heat Carbonates
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.solmat.2017.11.015
收录类别SCI
语种英语
关键词[WOS]THERMAL-ENERGY STORAGE ; PHASE-CHANGE MATERIALS ; PERFORMANCE ENHANCEMENT TECHNIQUES ; TEMPERATURE ; STABILITY ; SYSTEMS
WOS研究方向Energy & Fuels ; Materials Science ; Physics
WOS类目Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied
项目资助者Key Technologies R&D Program of China(2015BAA01B02) ; National Natural Science Foundation of China(21606242) ; Beijing Natural Science Foundation(3151001) ; UK EPSRC(EP/P003435/1 ; EP/P004709/1)
WOS记录号WOS:000428483600025
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24169
专题研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Birmingham, Birmingham Ctr Energy Storage, Birmingham B15 2TT, W Midlands, England
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Ge, Zhiwei,Huang, Yun,Ding, Yulong. Eutectic composition-dependence of latent heat of binary carbonates (Na2CO3/Li2CO3)[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2018,179:202-206.
APA Ge, Zhiwei,Huang, Yun,&Ding, Yulong.(2018).Eutectic composition-dependence of latent heat of binary carbonates (Na2CO3/Li2CO3).SOLAR ENERGY MATERIALS AND SOLAR CELLS,179,202-206.
MLA Ge, Zhiwei,et al."Eutectic composition-dependence of latent heat of binary carbonates (Na2CO3/Li2CO3)".SOLAR ENERGY MATERIALS AND SOLAR CELLS 179(2018):202-206.
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