Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na                         2                         HPO                         4                         ·12H                         2                         O as inorganic PCM

Shuaiqiao Peng; Jin Huang; Tingyu Wang; Panpan Zhu

doi:10.1016/j.tca.2019.02.013

Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM

Shuaiqiao Peng, Jin Huang, Tingyu Wang^*, Panpan Zhu

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

89 Citations (Scopus)

Abstract

Novel composites phase change material (PCM) formed by immersing disodium hydrogen phosphate dodecahydrate (DHPD) in fumed silica (FS) is developed. The influences of porous media structure, distribution uniformity and thermal conductivity of heat transfer medium that affect the supercooling of DHPD were experimentally investigated. The results revealed that the equally distributed FS in the composites PCM was helpful to prevent dehydration of DHPD. The addition of FS with porous structure in DHPD could reduce its supercooling degree from 14.4 °C to 4.1 °C. Moreover, the phase change temperature of DHPD/FS composites PCM basically remain the same after 50 times heating-cooling cycle test, showing excellent thermal stability of the as-prepared PCM. The phase change temperature of DHPD/FS composites PCM is 33.99 °C and phase change latent heat of 211.8 J/g were obtained with 2 wt% FS added in DHPD, with perfect thermal stability, which proved DHPD/FS a promising PCM for thermal energy storage.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Thermochimica acta
Volume	675
Early online date	23 Feb 2019
DOIs	https://doi.org/10.1016/j.tca.2019.02.013
Publication status	Published - 1 May 2019
Externally published	Yes

Keywords

Fumed silica
Hydrated salt
Phase change materials
Supercooling
Thermal energy storage
Thermal stability

Access to Document

10.1016/j.tca.2019.02.013

Cite this

Peng, S., Huang, J., Wang, T., & Zhu, P. (2019). Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM. Thermochimica acta, 675, 1-8. https://doi.org/10.1016/j.tca.2019.02.013

Peng, Shuaiqiao ; Huang, Jin ; Wang, Tingyu et al. / Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM. In: Thermochimica acta. 2019 ; Vol. 675. pp. 1-8.

@article{6cdbb2977863402db930275928ff512a,

title = "Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na 2 HPO 4 ·12H 2 O as inorganic PCM",

abstract = "Novel composites phase change material (PCM) formed by immersing disodium hydrogen phosphate dodecahydrate (DHPD) in fumed silica (FS) is developed. The influences of porous media structure, distribution uniformity and thermal conductivity of heat transfer medium that affect the supercooling of DHPD were experimentally investigated. The results revealed that the equally distributed FS in the composites PCM was helpful to prevent dehydration of DHPD. The addition of FS with porous structure in DHPD could reduce its supercooling degree from 14.4 °C to 4.1 °C. Moreover, the phase change temperature of DHPD/FS composites PCM basically remain the same after 50 times heating-cooling cycle test, showing excellent thermal stability of the as-prepared PCM. The phase change temperature of DHPD/FS composites PCM is 33.99 °C and phase change latent heat of 211.8 J/g were obtained with 2 wt% FS added in DHPD, with perfect thermal stability, which proved DHPD/FS a promising PCM for thermal energy storage.",

keywords = "Fumed silica, Hydrated salt, Phase change materials, Supercooling, Thermal energy storage, Thermal stability",

author = "Shuaiqiao Peng and Jin Huang and Tingyu Wang and Panpan Zhu",

note = "Funding Information: This work is supported by National Natural Science Foundation of China (Grant No. 51476038 ), Guangzhou Science and Technology Plan of Industry University Research collaborative innovation major project (No. 201704030009 ), Nansha District Science and Technology Plan of Industry University Research program (No. 2016CX013 ), China Postdoctoral Science Foundation (No. 2018M633014 ). Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "1",

doi = "10.1016/j.tca.2019.02.013",

language = "English",

volume = "675",

pages = "1--8",

journal = "Thermochimica acta",

issn = "0040-6031",

publisher = "Elsevier B.V.",

}

Peng, S, Huang, J, Wang, T & Zhu, P 2019, 'Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM', Thermochimica acta, vol. 675, pp. 1-8. https://doi.org/10.1016/j.tca.2019.02.013

Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM. / Peng, Shuaiqiao; Huang, Jin; Wang, Tingyu et al.
In: Thermochimica acta, Vol. 675, 01.05.2019, p. 1-8.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na 2 HPO 4 ·12H 2 O as inorganic PCM

AU - Peng, Shuaiqiao

AU - Huang, Jin

AU - Wang, Tingyu

AU - Zhu, Panpan

N1 - Funding Information: This work is supported by National Natural Science Foundation of China (Grant No. 51476038 ), Guangzhou Science and Technology Plan of Industry University Research collaborative innovation major project (No. 201704030009 ), Nansha District Science and Technology Plan of Industry University Research program (No. 2016CX013 ), China Postdoctoral Science Foundation (No. 2018M633014 ). Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Novel composites phase change material (PCM) formed by immersing disodium hydrogen phosphate dodecahydrate (DHPD) in fumed silica (FS) is developed. The influences of porous media structure, distribution uniformity and thermal conductivity of heat transfer medium that affect the supercooling of DHPD were experimentally investigated. The results revealed that the equally distributed FS in the composites PCM was helpful to prevent dehydration of DHPD. The addition of FS with porous structure in DHPD could reduce its supercooling degree from 14.4 °C to 4.1 °C. Moreover, the phase change temperature of DHPD/FS composites PCM basically remain the same after 50 times heating-cooling cycle test, showing excellent thermal stability of the as-prepared PCM. The phase change temperature of DHPD/FS composites PCM is 33.99 °C and phase change latent heat of 211.8 J/g were obtained with 2 wt% FS added in DHPD, with perfect thermal stability, which proved DHPD/FS a promising PCM for thermal energy storage.

AB - Novel composites phase change material (PCM) formed by immersing disodium hydrogen phosphate dodecahydrate (DHPD) in fumed silica (FS) is developed. The influences of porous media structure, distribution uniformity and thermal conductivity of heat transfer medium that affect the supercooling of DHPD were experimentally investigated. The results revealed that the equally distributed FS in the composites PCM was helpful to prevent dehydration of DHPD. The addition of FS with porous structure in DHPD could reduce its supercooling degree from 14.4 °C to 4.1 °C. Moreover, the phase change temperature of DHPD/FS composites PCM basically remain the same after 50 times heating-cooling cycle test, showing excellent thermal stability of the as-prepared PCM. The phase change temperature of DHPD/FS composites PCM is 33.99 °C and phase change latent heat of 211.8 J/g were obtained with 2 wt% FS added in DHPD, with perfect thermal stability, which proved DHPD/FS a promising PCM for thermal energy storage.

KW - Fumed silica

KW - Hydrated salt

KW - Phase change materials

KW - Supercooling

KW - Thermal energy storage

KW - Thermal stability

UR - http://www.scopus.com/inward/record.url?scp=85062458271&partnerID=8YFLogxK

U2 - 10.1016/j.tca.2019.02.013

DO - 10.1016/j.tca.2019.02.013

M3 - Article

AN - SCOPUS:85062458271

SN - 0040-6031

VL - 675

SP - 1

EP - 8

JO - Thermochimica acta

JF - Thermochimica acta

ER -

Peng S, Huang J, Wang T, Zhu P. Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM. Thermochimica acta. 2019 May 1;675:1-8. Epub 2019 Feb 23. doi: 10.1016/j.tca.2019.02.013

Effect of fumed silica additive on supercooling, thermal reliability and thermal stability of Na ₂ HPO ₄ ·12H ₂ O as inorganic PCM

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this