eprintid: 2981
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/29/81
datestamp: 2023-11-09 15:51:14
lastmod: 2023-11-09 15:51:14
status_changed: 2023-11-09 15:44:43
type: article
metadata_visibility: show
creators_name: Belusko, M.
creators_name: Halawa, E.
creators_name: Bruno, F.
title: Characterising PCM thermal storage systems using the effectiveness-NTU approach
ispublished: pub
keywords: Design parameters; Effectiveness-NTU; Exergy efficiencies; Exergy loss; Flat container; Numerical modelling; One-Dimension; PCM systems; Performance specifications; Phase Change; Single parameter; Storage systems; Thermal Performance; Thermal storage; Thermal storage system; Thermal storage units; Two-dimension, Exergy; Phase change materials, Heat storage
note: cited By 55
abstract: Thermal performance characterisation of thermal storage systems employing phase change materials (PCMs) has been carried out predominantly through numerical modelling. These models do not provide a direct representation of the storage system, and cannot readily be used to design a thermal storage unit (TSU) for a particular application to meet the performance specification. Furthermore, limited consideration is given to exergy efficiency of the PCM system being studied. The phase change profiles identified in detailed simulation of PCM encapsulated in flat containers, have been employed to analytically formulate the TSU effectiveness using the familiar effective-NTU (-NTU) approach. A one and two dimension formulation were developed with respect to the phase change fraction. This single parameter function can be used for sizing a TSU, by determining the redundant amount of PCM defined by the minimum effectiveness during discharging. Furthermore by optimising design parameters, exergy losses can be minimised by maximising the effectiveness over the full charging - discharging cycle. The study demonstrated that for air based systems phase change can be represented in one-dimension, however for liquid based systems two-dimensional phase change needs to be considered. © 2012 Elsevier Ltd. All rights reserved.
date: 2012
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859399292&doi=10.1016%2fj.ijheatmasstransfer.2012.03.018&partnerID=40&md5=200134a357d806c19affdf67791ee7df
id_number: 10.1016/j.ijheatmasstransfer.2012.03.018
full_text_status: none
publication: International Journal of Heat and Mass Transfer
volume: 55
number: 13-14
pagerange: 3359-3365
refereed: TRUE
issn: 00179310
citation:   Belusko, M. and Halawa, E. and Bruno, F.  (2012) Characterising PCM thermal storage systems using the effectiveness-NTU approach.  International Journal of Heat and Mass Transfer, 55 (13-14).  pp. 3359-3365.  ISSN 00179310