The study on paraffin-water emulsion PCM with low supercooling degree

Xiyao Zhang; Jianlei Niu; Jianyong Wu; Shuo Zhang

doi:10.1007/978-3-642-39581-9_2

The study on paraffin-water emulsion PCM with low supercooling degree

Xiyao Zhang
, Jianlei Niu
, Jianyong Wu
, Shuo Zhang

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

2 Citations (Scopus)

Abstract

This study aims to develop paraffin waxes based phase change material emulsion with low supercooling degree, which can be applied in a Thermal Energy Storage (TES) systems to maximize the use of natural heating and cooling sources via solar thermal collectors or evaporative coolers, and to raise the energy efficiency of the chillers operating at off-peak period. In this study, a kind of hexadecane-water emulsion with small droplet size was prepared and analyzed. The modified Multi-Wall Carbon Nano-Tube (MWCNT) particles were dispersed in emulsion as the nucleating agent to reduce supercooling degree. The MWCNT particles were modified with strong acids H2SO4 and HNO3 to increase the compatibility with the organic liquid. Thermal analysis of the hexadecane-water emulsions with well-dispersed MWCNT particles by Differential Scanning Calorimeter (DSC) indicated that the supercooling degree of emulsion was significantly decreased. The effective ranges of nucleating agent concentration were summarized which provided a promising way of improving the performance of system energy efficiency in TES systems.

Original language	English
Title of host publication	Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning
Subtitle of host publication	HVAC and R Component and Energy System
Pages	19-26
Number of pages	8
Edition	VOL. 2
DOIs	https://doi.org/10.1007/978-3-642-39581-9_2
Publication status	Published - 24 Feb 2014
Event	8th International Symposium on Heating, Ventilation, and Air Conditioning, ISHVAC 2013 - Xi'an, China Duration: 19 Oct 2013 → 21 Oct 2013

Publication series

Name	Lecture Notes in Electrical Engineering
Number	VOL. 2
Volume	262 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	8th International Symposium on Heating, Ventilation, and Air Conditioning, ISHVAC 2013
Country/Territory	China
City	Xi'an
Period	19/10/13 → 21/10/13

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Emulsion
MWCNT
Nucleating agent
PCM
Supercooling
TES

ASJC Scopus subject areas

Industrial and Manufacturing Engineering

More information

10.1007/978-3-642-39581-9_2

Cite this

Zhang, X., Niu, J., Wu, J., & Zhang, S. (2014). The study on paraffin-water emulsion PCM with low supercooling degree. In Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC and R Component and Energy System (VOL. 2 ed., pp. 19-26). (Lecture Notes in Electrical Engineering; Vol. 262 LNEE, No. VOL. 2). https://doi.org/10.1007/978-3-642-39581-9_2

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title = "The study on paraffin-water emulsion PCM with low supercooling degree",

abstract = "This study aims to develop paraffin waxes based phase change material emulsion with low supercooling degree, which can be applied in a Thermal Energy Storage (TES) systems to maximize the use of natural heating and cooling sources via solar thermal collectors or evaporative coolers, and to raise the energy efficiency of the chillers operating at off-peak period. In this study, a kind of hexadecane-water emulsion with small droplet size was prepared and analyzed. The modified Multi-Wall Carbon Nano-Tube (MWCNT) particles were dispersed in emulsion as the nucleating agent to reduce supercooling degree. The MWCNT particles were modified with strong acids H2SO4 and HNO3 to increase the compatibility with the organic liquid. Thermal analysis of the hexadecane-water emulsions with well-dispersed MWCNT particles by Differential Scanning Calorimeter (DSC) indicated that the supercooling degree of emulsion was significantly decreased. The effective ranges of nucleating agent concentration were summarized which provided a promising way of improving the performance of system energy efficiency in TES systems.",

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author = "Xiyao Zhang and Jianlei Niu and Jianyong Wu and Shuo Zhang",

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Zhang, X, Niu, J, Wu, J & Zhang, S 2014, The study on paraffin-water emulsion PCM with low supercooling degree. in Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC and R Component and Energy System. VOL. 2 edn, Lecture Notes in Electrical Engineering, no. VOL. 2, vol. 262 LNEE, pp. 19-26, 8th International Symposium on Heating, Ventilation, and Air Conditioning, ISHVAC 2013, Xi'an, China, 19/10/13. https://doi.org/10.1007/978-3-642-39581-9_2

The study on paraffin-water emulsion PCM with low supercooling degree. / Zhang, Xiyao; Niu, Jianlei; Wu, Jianyong et al.
Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC and R Component and Energy System. VOL. 2. ed. 2014. p. 19-26 (Lecture Notes in Electrical Engineering; Vol. 262 LNEE, No. VOL. 2).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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N2 - This study aims to develop paraffin waxes based phase change material emulsion with low supercooling degree, which can be applied in a Thermal Energy Storage (TES) systems to maximize the use of natural heating and cooling sources via solar thermal collectors or evaporative coolers, and to raise the energy efficiency of the chillers operating at off-peak period. In this study, a kind of hexadecane-water emulsion with small droplet size was prepared and analyzed. The modified Multi-Wall Carbon Nano-Tube (MWCNT) particles were dispersed in emulsion as the nucleating agent to reduce supercooling degree. The MWCNT particles were modified with strong acids H2SO4 and HNO3 to increase the compatibility with the organic liquid. Thermal analysis of the hexadecane-water emulsions with well-dispersed MWCNT particles by Differential Scanning Calorimeter (DSC) indicated that the supercooling degree of emulsion was significantly decreased. The effective ranges of nucleating agent concentration were summarized which provided a promising way of improving the performance of system energy efficiency in TES systems.

AB - This study aims to develop paraffin waxes based phase change material emulsion with low supercooling degree, which can be applied in a Thermal Energy Storage (TES) systems to maximize the use of natural heating and cooling sources via solar thermal collectors or evaporative coolers, and to raise the energy efficiency of the chillers operating at off-peak period. In this study, a kind of hexadecane-water emulsion with small droplet size was prepared and analyzed. The modified Multi-Wall Carbon Nano-Tube (MWCNT) particles were dispersed in emulsion as the nucleating agent to reduce supercooling degree. The MWCNT particles were modified with strong acids H2SO4 and HNO3 to increase the compatibility with the organic liquid. Thermal analysis of the hexadecane-water emulsions with well-dispersed MWCNT particles by Differential Scanning Calorimeter (DSC) indicated that the supercooling degree of emulsion was significantly decreased. The effective ranges of nucleating agent concentration were summarized which provided a promising way of improving the performance of system energy efficiency in TES systems.

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T2 - 8th International Symposium on Heating, Ventilation, and Air Conditioning, ISHVAC 2013

Y2 - 19 October 2013 through 21 October 2013

ER -

The study on paraffin-water emulsion PCM with low supercooling degree

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

More information

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