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Investigation on innovative thermal conductive composite strontium chloride for ammonia sorption refrigeration

Lookup NU author(s): Dr Long Jiang, Dr Yiji Lu, Professor Tony Roskilly, Ke Tang

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


Abstract

© 2017 Elsevier Ltd and IIR. A novel composite strontium chloride (SrCl2) is developed with porous material of expanded natural graphite (ENG) and nanoparticle of carbon coated nickel (Ni@C) as the additives. Thermo-physical properties such as thermal diffusivity, thermal conductivity and permeability are investigated and analyzed. The highest thermal diffusivity could reach 6.2 mm2 s-1. Correspondingly the highest thermal conductivity is 4.03 W · m-1 · K-1, which is about 20 times higher than that of granular SrCl2. Permeability of novel composite SrCl2 ranges from 1.31 × 10-9 m2 to 1.07 × 10-13 m2. Moreover, samples with Ni@C have better sorption performance in ammonia than those without Ni@C due to the improved heat and mass transfer performance. Ammonia sorption quantities of novel composite SrCl2 range from 0.39 kg kg-1 to 0.67 kg kg-1 when evaporation temperature varies from -15 °C to 15 °C. The addition of ENG and Ni@C shows great potentials for sorption refrigeration by adjusting the concentration swing.


Publication metadata

Author(s): Jiang L, Wang RZ, Lu YJ, Roskilly AP, Wang LW, Tang K

Publication type: Article

Publication status: Published

Journal: International Journal of Refrigeration

Year: 2018

Volume: 85

Pages: 157-166

Print publication date: 01/01/2018

Online publication date: 05/10/2017

Acceptance date: 25/09/2017

ISSN (print): 0140-7007

ISSN (electronic): 1879-2081

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.ijrefrig.2017.09.020

DOI: 10.1016/j.ijrefrig.2017.09.020


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