Nanoparticle application for heat transfer and irreversibility analysis in an air conditioning unit

Charging of PCM with incorporating copper oxide nanomaterial has been modeled in current article. Unsteady simulation for reporting thermal irreversibility was performed. Nanoparticles have been dispersed into paraffin to achieve greater efficiency and reach the match between demand and supply of en...

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Bibliographic Details
Published in:Journal of molecular liquids 2019-10, Vol.292, p.111372, Article 111372
Main Authors: Xiong, Qingang, Vaseghi, M., Ali, Jagar A., Hamad, Samir Mustafa, Jafaryar, M., Sheikholeslami, M., Shafee, Ahmad, Alkanhal, Tawfeeq Abdullah, Nguyen-Thoi, Trung, Tlili, I., Li, Zhixiong
Format: Article
Language:English
Subjects:
Air conditioning unit
Charging
Entropy generation
Finite volume method
Nanoparticle
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Summary:Charging of PCM with incorporating copper oxide nanomaterial has been modeled in current article. Unsteady simulation for reporting thermal irreversibility was performed. Nanoparticles have been dispersed into paraffin to achieve greater efficiency and reach the match between demand and supply of energy. To increase the stored energy, volume fraction of copper oxide should be increased. Outputs revealed that narrow melt layer near the inner duct has been formed in initial time and it expanded as time progressed. Melting time and volume fraction of copper oxide has reverse relation and dispersing nanoparticles make entropy generation to decline. •Melting of NEPCM in an air heat exchanger was investigated.•To simulate this unsteady process FVM was used.•Irreversibility declines with rise of volume fraction.•Charging time reduces with dispersing copper oxide.
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2019.111372