ORCID Number

0000-0003-3969-4778

Date of Award

Summer 2026

Embargo Period

7-23-2036

Access Type

Dissertation - Open Access

Degree Name

Doctor of Philosophy in Mechanical Engineering

Department

Mechanical Engineering

Committee Chair

Sandra K.S. Boetcher

Committee Chair Email

boetches@erau.edu

First Committee Member

Rafael M. Rodriguez

First Committee Member Email

rodri7d6@erau.edu

Second Committee Member

Mark Ricklick

Second Committee Member Email

ridlickm@erau.edu

Third Committee Member

Birce Dikici

Third Committee Member Email

dikicib@erau.edu

Fourth Committee Member

Yizhoy Jiang

Fourth Committee Member Email

jiangy5@erau.edu

College Dean

James W. Gregory

Abstract

Integrating latent heat thermal energy storage into additively manufactured components enables advanced thermal management through complex geometries. Vat photopolymerization provides exceptional dimensional accuracy; however, incorporating high loadings of phase change materials into photocurable resins is limited by leakage and increased resin viscosity. This dissertation presents the development, processing, and application of microencapsulated phase change material-photocurable resin composites for thermal energy storage components. The composites were developed to establish printability and thermal performance. Heated vat photopolymerization was investigated to reduce viscosity and improve the printability of highly loaded composites. Elevated-temperature printing reduced resin viscosity and improved dimensional fidelity while preserving latent heat storage capacity and thermal stability. The composites were then implemented in triply periodic minimal surface heat exchangers to evaluate thermal-hydraulic performance. Compared with conventional bulk phase change material backfilled architectures, embedding microencapsulated phase change material within the printed polymer walls simplified fabrication, reduced hydraulic losses, and maintained effective heat transfer while increasing latent heat storage. Overall, this work demonstrates the feasibility of microencapsulated phase change material-photocurable resin composites for additively manufactured thermal energy storage systems.

Available for download on Wednesday, July 23, 2036

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