Long-term heat-storage ceramics absorbing thermal energy from hot water.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32656338.
- Also identified by DOI 10.1126/sciadv.aaz5264 and PMC identifier 7329333.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
In thermal and nuclear power plants, 70% of the generated thermal energy is lost as waste heat. The temperature of the waste heat is below the boiling temperature of water. Here, we show a long-term heat-storage material that absorbs heat energy at warm temperatures from 38°C (311 K) to 67°C (340 K). This unique series of material is composed of scandium-substituted lambda-trititanium-pentoxide (λ-Sc <i><sub>x</sub></i> Ti<sub>3-<i>x</i></sub> O<sub>5</sub>). λ-Sc <i><sub>x</sub></i> Ti<sub>3-<i>x</i></sub> O<sub>5</sub> not only accumulates heat energy from hot water but also could release the accumulated heat energy by the application of pressure. λ-Sc <i><sub>x</sub></i> Ti<sub>3-<i>x</i></sub> O<sub>5</sub> has the potential to accumulate heat energy of hot water generated in thermal and nuclear power plants and to recycle the accumulated heat energy on demand by applying external pressure. Furthermore, it may be used to recycle waste heat in industrial factories and automobiles.