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Development and thermal characteristics of a novel composite oleic acid for cold storage [Développement et caractéristiques thermiques d'un nouvel acide oléique composite pour le stockage frigorifique]

Lookup NU author(s): Dr Long Jiang, Professor Tony Roskilly



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2019 Elsevier Ltd and IIR This paper presents a novel composite material for cold storage. Oleic acid is selected as phase change material whereas carbon coated aluminum is adopted as additive. Thermal conductivities and viscosities of samples are investigated by light flash method and viscometer. Phase change temperature and latent heat are analyzed through DSC measurements. It is indicated that thermal conductivities of composite oleic acid using nanoparticles are remarkably improved when compared with pure sample. The highest thermal conductivity of composite oleic acid with 1 wt% mass ratio of Al@C could reach 0.42 W m −1 K −1 , which is 2 times higher than that of pure oleic acid. When testing temperature increases from 25 °C to 75 °C, dynamic viscosities decrease from 3.67 mPa s to 1.062 mPa s. Phase change temperature and latent heat are slightly shifted from that of pure oleic acid. This novel composite oleic acid reveals vast potentials to stabilize the performance of solar sorption cooling system.

Publication metadata

Author(s): Jiang L, Wang RZ, Roskilly AP

Publication type: Article

Publication status: Published

Journal: International Journal of Refrigeration

Year: 2019

Volume: 100

Pages: 55-62

Print publication date: 01/04/2019

Online publication date: 24/01/2019

Acceptance date: 22/01/2019

Date deposited: 16/04/2019

ISSN (print): 0140-7007

ISSN (electronic): 1879-2081

Publisher: Elsevier Ltd


DOI: 10.1016/j.ijrefrig.2019.01.025


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