Thermal analysis and heat capacity study of polyethylene glycol (PEG) phase change materials for thermal energy storage applications

doi:10.1016/j.jct.2018.08.031

	Thermal analysis and heat capacity study of polyethylene glycol (PEG) phase change materials for thermal energy storage applications
	Kou, Yan 2; Wang, Siyu 2; Luo, Jipeng 1,2; Sun, Keyan 1,2; Zhang, Jian 2; Tan, Zhicheng 2; Shi, Quan 2
刊名	JOURNAL OF CHEMICAL THERMODYNAMICS
	2019
卷号	128 页码:259-274
关键词	PEG Phase change materials Thermal energy storage Heat capacity Phase transition Thermal conductivity
ISSN号	0021-9614
DOI	10.1016/j.jct.2018.08.031
通讯作者	Tan, Zhicheng(tzc@dicp.ac.cn) ; Shi, Quan(shiquan@dicp.ac.cn)
英文摘要	Phase change materials (PCMs) generally offer high latent heats for a wide range of thermal energy storage technologies. As typical organic PCMs, polyethylene glycol (PEG) has been widely studied due to their high latent enthalpy, non-toxic and non-corrosive natures. However, the thermal properties especially the heat capacities of PEG, which would play a vital role in theoretically and technically investigating PCM thermal performance, have never been studied in a wide temperature region. Herein, we reported the heat capacities of PEG samples with the molar massvarying from 1000 to 20,000 for the first time in the temperature range from (1.9 to 400) K using a combination method of Physical Property Measurement System (PPMS) and differential scanning calorimeter (DSC). Furthermore, the standard molar heat capacity, entropy and enthalpy at 298.15 K and 0.1 MPa were calculated based on the heat capacity curve fitting. Meanwhile, the phase transition temperature and enthalpy, thermal conductivity and thermal stability of these PEG samples were measured using various thermal analysis methods, and these thermal properties were also compared with the previous results. (C) 2018 Published by Elsevier Ltd.
资助项目	National Natural Science Foundation of China[21473198] ; Liaoning Provincial Natural Science Foundation of China[201602741]
WOS关键词	SHAPE STABILITY ; GRAPHENE OXIDE ; CONDUCTIVITY ; COMPOSITE ; CONVERSION ; METHACRYLATE) ; NITRIDE
WOS研究方向	Thermodynamics ; Chemistry
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000446481000030
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China ; Liaoning Provincial Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166798]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Tan, Zhicheng; Shi, Quan
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning Prov Key Lab Thermochem Energy & Mat, Thermochem Lab,Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Kou, Yan,Wang, Siyu,Luo, Jipeng,et al. Thermal analysis and heat capacity study of polyethylene glycol (PEG) phase change materials for thermal energy storage applications[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2019,128:259-274.
APA	Kou, Yan.,Wang, Siyu.,Luo, Jipeng.,Sun, Keyan.,Zhang, Jian.,...&Shi, Quan.(2019).Thermal analysis and heat capacity study of polyethylene glycol (PEG) phase change materials for thermal energy storage applications.JOURNAL OF CHEMICAL THERMODYNAMICS,128,259-274.
MLA	Kou, Yan,et al."Thermal analysis and heat capacity study of polyethylene glycol (PEG) phase change materials for thermal energy storage applications".JOURNAL OF CHEMICAL THERMODYNAMICS 128(2019):259-274.