| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2023 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-1: Determination of Mechanical, Thermal and Barocaloric Properties of Elastomers by Rheological Techniques for Hydrostatic Pressure based Solid State Refrigeration |
| Author(s) |
Naveen Daham Weerasekera, Agnimitra Biswas |
| On-Site Speaker (Planned) |
Naveen Daham Weerasekera |
| Abstract Scope |
Since vapor compression systems have a significant negative impact on the environment, solid state refrigeration presents a viable alternative. The research in hydrostatic pressure-based caloric cooling (barocaloric), which outperforms all other solid-state cooling techniques, grows. Elastomers outperform among the various classes of materials used as barocaloric refrigerants due to their significant isothermal entropy change. Innovative elastomers for barocaloric cooling are currently being introduced by modern research communities. As a result, a versatile methodology is required to characterize such refrigerants. We present rheological pvT behavior and the transient line source method as promising techniques for characterizing mechanical, barocaloric, and thermal properties of elastomers. Using this method, we investigated the functional properties of ten block thermoplastic elastomers as a new class of barocaloric materials. We discovered significant barocaloric properties in these materials, with normalized refrigeration capacities of up to 42 J kg-1 K-1 GPa-1 demonstrating the best barocaloric materials reported thus far. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Characterization, Energy Conversion and Storage, Polymers |