Difference between revisions of "Projects:2019s1-113 High Curie Temperature Magnetic Materials"
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== Background == | == Background == | ||
− | === | + | === Curie temperature === |
+ | The Curie temperature is the temperature above which the spontanteous magnetization (ferromagnetism) vanishes; it separated the disordered paramagnetic phase T > T_c from the ordered ferromagnetic phase at T < T_c[1]. | ||
== Method == | == Method == |
Revision as of 17:33, 11 April 2019
Abstract here
Contents
Introduction
Renewable energy is a fast-growing sector of the Australian energy market. However, the adoption of renewable energy, in particular, wind and solar energy, remains limited by the intermittency of generation. Energy storage, as well as Frequency Control and Ancillary Services(FCAS) that are both available and cost-effective, are the new challenges facing the adoption of renewable energy. In order to meet these challenges, various companies have been investigating the viability of offering energy storage systems to the national grid. 1414 Degrees is a company that specializes in Thermal Energy Storage Systems(TESS). 1414 Degrees have developed a secret compound or Phase Change Material(PCM) that has a high latent heat of fusion. The PCM melts at 1414°C, hence their name. Currently, the PCM is heated via resistive heating elements that generate a lot of waste heat and thus require large amounts of power to run. 1414 Degrees would like to move to electromagnetic heating. However, electromagnetic actuation requires materials that remain ferromagnetic at sufficiently high temperatures i.e. have a Curie temperature of at least 1414°C.
The purpose of this project is to research, model, build and test materials that retain permanent magnetism at high temperatures.
- Do a literature and product search for materials that are solid and permanent magnets at 1400 K and preferably up to 1700 K and model prospective materials
- Test selected materials
- Build and test an electromagnetically actuated high-temperature device
Project team
Project students
- Gitonga Njeru
- Nikko Kahindi
Supervisors
- Dr Andrew Allison
Advisors
- Grant Mathieson (1414 Degrees)
- Dr Reza Ghomashchi
- Will Robertson
- James Anderson
Objectives
To create an electromagnetically actuated device capable of:
- Heating the Phase Change Materials(PCM) to its melting point (1000K - 1700K).
- Creating an energy density of at least 1MWh/m^3 and a power density of 250kW/m^3 in the PCM.
- Efficiency greater than 90%
Background
Curie temperature
The Curie temperature is the temperature above which the spontanteous magnetization (ferromagnetism) vanishes; it separated the disordered paramagnetic phase T > T_c from the ordered ferromagnetic phase at T < T_c[1].
Method
Results
Conclusion
References
[1] C. Kittel, Introduction to solid state physics. New York: J. Wiley & Sons, 1971
[2] ...