Abstract
In this work, we design, build, and test one of the very first barocaloric devices. The here presented device can recover the energy generated by an individual’s footstep and transform it into barocaloric heating and/or cooling. Accordingly, we present an innovative device that can provide eco-friendly and gas-free heating/cooling. Moreover, we test the device by measuring a new barocaloric organic polymer that exhibits a large adiabatic temperature change of ~2.9 K under the application of 380 bar. These results pave the way towards novel and more advanced barocaloric technologies and provide a simple and low-cost device to explore new barocaloric materials.
Highlights
In recent years, solid-state barocaloric materials have arisen as a promising solution for gas-free and eco-friendly refrigeration systems [1,2,3,4]
We develop a new barocaloric thermometry device that recovers the work from footsteps to provide the pressure required to induce a heating/cooling effect with solid-state barocaloric materials
In order to test this device, we measured, for the first time, the adiabatic temperature change of the organic polymer trans-1,4-polyisoprene, and we compared it with the reported barocaloric performance of the vulcanized natural rubber [29]
Summary
Solid-state barocaloric materials have arisen as a promising solution for gas-free and eco-friendly refrigeration systems [1,2,3,4]. Despite all the advances in the exploration of new barocaloric materials, fewer efforts were devoted to the development of new devices and/or prototypes that can measure the performance and/or provide cooling using barocaloric compounds [4,31,32]. The barocaloric performance of the aforementioned barocaloric materials were mainly studied by calculating the isothermal entropy change from differential scanning calorimetry with coupled pressure generators (gas and/or oil pressurizing pumps).
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