Experimental evaluation of fundamental and phase-change characteristics for carbon-based suspensions

Tun Ping Teng, Ting Chiang Hsiao, Chun Chi Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, carbon-based materials prepared using an isoperibol oxygen bomb calorimeter of varying oxygen pressure were added to water to form carbon-based suspensions (CBSs). The thermal conductivity, viscosity, density, and contact angle of CBSs were measured by appropriate instruments to understand the fundamental characteristics of CBSs. A differential scanning calorimeter (DSC) was used to measure and analyze the phase-change characteristics of CBSs to evaluate the feasibility of employing CBSs as phase-change materials (PCMs) in ice-storage air-conditioning systems. The experimental results revealed that the thermal conductivity, viscosity, and density of CBSs did not significantly change but a significant reduction in the contact angle of sample's droplets occurred compared with that of water. The CBS of S5 had the lowest melting temperature and subcooling degree (SD) and highest freezing temperature in the DSC experiments; thus, S5 was determined to be the most suitable CBS for use as a PCM in this study.

Original languageEnglish
Title of host publicationKey Engineering Materials VIII
EditorsChobin Makabe, Alexander M. Korsunsky, Emma Wang
PublisherTrans Tech Publications Ltd
Pages210-216
Number of pages7
ISBN (Print)9783035713046
DOIs
Publication statusPublished - 2018 Jan 1
Event8th International Conference on Key Engineering Materials, ICKEM 2018 - Osaka, Japan
Duration: 2018 Mar 162018 Mar 18

Publication series

NameKey Engineering Materials
Volume775 KEM
ISSN (Print)1013-9826

Conference

Conference8th International Conference on Key Engineering Materials, ICKEM 2018
CountryJapan
CityOsaka
Period18/3/1618/3/18

Keywords

  • Carbon-based materials (CBMs)
  • Carbon-based suspensions (CBSs)
  • Differential scanning calorimeter (DSC)
  • Isoperibol oxygen bomb calorimeter
  • Subcooling degree (SD)

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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