Metallic phase change material-composites for Thermal Energy management

Introduction

Thermal Energy Storage (TES) systems can give strategic contributions to the efficiency and flexibility of intermittent power sources of various natures. However, their temporal modulation up to long charge-discharge cycles requires proper tuning of the thermal properties of the materials exchanging heat with fluids in TES systems.

Project Overview

The M-TES project proposes an innovative approach to manufacture granules of composite metallic Phase Change Materials (m-PCMs) through a low-cost one-step process. These m-PCMs can be tailored in terms of enthalpy-temperature relationships and heat transfer properties to meet the material requirements for flexible TES systems.

Project Focus

The 3-year M-TES project will focus on immiscible alloy systems based on recycled Al-Si casting alloys and Sn, with no need for Critical Raw Materials, thus adding a new option for reuse and recycling. The M-TES project will:

1. Identify thermophysical requirements for m-PCMs service.
2. Study alloys' surface and wetting properties to support the
3. Study of suitable process conditions.
4. Obtain thermal/mechanical granule properties.

A grained system will be tested as proof-of-concept, and its mechanical and heat transfer potential will be modeled to support further development toward higher Technology Readiness Levels (TRL) and other alloys.

Collaboration and Objectives

The multidisciplinary project objectives will be accomplished thanks to the knowledge and equipment complementarity of partners: POLIMI, CNR, KIT, and OVGU. They will work in strict interaction within and between work packages (WPs).

Research and Dissemination

The young researchers hired for the project will be encouraged to develop a curious multidisciplinary and deep understanding. The M-TES dissemination plan will spread results by preferring open activities, starting from scientific papers and conferences, widening to open science events for technicians and PhD students, and reaching out to the general public.