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Development and energy evaluation of phase change material composite for building energy-saving

Ji, R; Zou, Z; Liu, L; Wei, S; Qu, S; (2019) Development and energy evaluation of phase change material composite for building energy-saving. International Journal of Energy Research , 43 (14) pp. 8674-8683. 10.1002/er.4867. Green open access

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Abstract

SUMMARY Phase change materials (PCMs) contributed to building energy‐saving and thermal comfort through increasing the thermal capacity of building envelopes. In this study, a phase change material composite was developed by using the PCMs mixture of capric acid (CA) and lauric acid (LA) as the primary phase change energy storage agent and using the solid waste fly ash as a carrier material. The results showed that for Guangdong, the ideal PCMs mixture should have a transition temperature of 25.5oC, which could be obtained by using a mass ratio of CA/LA of 4:6. Then, experiment results also indicate that the optimum adsorption ratio of 2:1 (FA/PCMs) was detected for the synthesis of this FA/PCMs composite, which has the latent heat of 45.38 J/g and exists excellent thermal reliability. Moreover, simulation results by using EnergyPlus show that the proposed composite has a good building energy‐saving effect.

Type: Article
Title: Development and energy evaluation of phase change material composite for building energy-saving
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/er.4867
Publisher version: https://doi.org/10.1002/er.4867
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Technology, Energy & Fuels, Nuclear Science & Technology, building energy-saving, capric acid, fly ash, lauric acid, phase change materials, THERMAL PERFORMANCE, COAL, STORAGE, OPTIMIZATION, WALLBOARDS, PCMS, ACID, WALL
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > The Bartlett Sch of Const and Proj Mgt
URI: https://discovery.ucl.ac.uk/id/eprint/10084233
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