Work

Theoretical investigation of an enhanced multiphase change energy storage material for buildings

Year: 2024

Type: article

Abstract: Recent developments have highlighted the potential of multiphase change materials (MCM) as flexible energy storage materials for application in buildings. They however still possess relatively low thermal conductivities and for that reason, this study was focused on theoretically investigating an enhanced MCM. The MCM was obtained by combining the microencapsulated heptadecane (MEHept) and octacosane (MEOct) using polymelamine formaldehyde (PMF) as the shell material, and graphene as a thermal conductivity additive. Analysis of the theoretical results achieved about 34% enhancement in thermal conductivity with an optimum 5 wt.% of graphene but resulted in 21% reduction in energy storage capacity. Despite the study has demonstrated the possibility of using graphene to increase the thermal properties of MCM, deeper experimental work is strongly recommended to align it with the simulation results.

Source: Journal of Energy Storage

DOI: 10.1016/j.est.2024.114834

Authors: Rizal Sinaga, Jo Darkwa, Siddig Omer, Mark Worall

Language: English

Topic: Phase Change Materials Research

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: hybrid

Estimated APC paid: $3,030

Funder: Engineering and Physical Sciences Research Council