eprintid: 6820
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/68/20
datestamp: 2023-11-09 16:18:37
lastmod: 2023-11-09 16:18:37
status_changed: 2023-11-09 16:07:45
type: article
metadata_visibility: show
creators_name: Owolabi, A.L.
creators_name: Al-Kayiem, H.H.
creators_name: Baheta, A.T.
title: Nanoadditives induced enhancement of the thermal properties of paraffin-based nanocomposites for thermal energy storage
ispublished: pub
keywords: Collector efficiency; Energy storage; Heat storage; Nanocomposites; Paraffins; Pulse code modulation; Specific heat; Tellurium; Thermal energy; Thermodynamic properties; Zinc, Collector systems; Hamiltons; Integrated applications; Nanoadditives; Thermal enhancement; Thermal solar system; Weight percent; Zn nanoparticles, Thermal conductivity, concentration (composition); diffusivity; energy efficiency; nanoparticle; performance assessment; prediction; solar power; storage; thermal conductivity; wax
note: cited By 47
abstract: Nanocomposites of a paraffin wax base containing various concentrations (0.5, 1.0, and 1.5 wt.) of the aluminium, copper, zinc and iron nanoadditives were investigated experimentally and theoretically. The experimental results revealed that an increased weight percent of the additives, within the investigated range, enhanced the thermal properties for TES application. Adding 1.5 wt. of Cu and Zn nanoparticles enhanced the thermal conductivity of the nanocomposite by 20.6 and 61.5, respectively. The thermal diffusivity was observed to increase proportionally as the thermal conductivity increases, whereas the specific heat decreases. The experimental results were compared with existing models, and they disagreed with the prediction results of the thermal conductivity values for all of the models in the literature. The Maxwell and Hamilton-Crosser models predicted the closest values to the experimental results; however, they underpredicted the thermal conductivity of the nanocomposite, whereas the values from the other models significantly overpredicted the thermal conductivity values. The collector efficiency performance was enhanced by 15.5 when integrated with PCM-TES. A further enhancement was reported when the collector system was integrated with nanocomposite-TES. The enhanced PCM nanocomposites exhibited improved thermal energy storage capability, mainly in solar/TES integrated applications. © 2016 Elsevier Ltd
date: 2016
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84976271738&doi=10.1016%2fj.solener.2016.06.008&partnerID=40&md5=4ebc599dcb0784abb6430afc39d16f06
id_number: 10.1016/j.solener.2016.06.008
full_text_status: none
publication: Solar Energy
volume: 135
pagerange: 644-653
refereed: TRUE
issn: 0038092X
citation:   Owolabi, A.L. and Al-Kayiem, H.H. and Baheta, A.T.  (2016) Nanoadditives induced enhancement of the thermal properties of paraffin-based nanocomposites for thermal energy storage.  Solar Energy, 135.  pp. 644-653.  ISSN 0038092X