Abstract
Magnetic refrigerators can theoretically be more efficient than current vapor compression systems and use no vapor refrigerants with global warming potential. The core component, the active magnetic regenerator (AMR) operates based on the magnetocaloric effect of magnetic materials and the heat regeneration processes of periodic fluid blows. Magnetocaloric materials with a first order phase transition (FOPT) are suitable to realize a higher cooling capacity than commonly used gadolinium, but layering such materials is necessary, due to a large isothermal entropy change (Δ푆푚) in a narrow region around their Curie temperature. Simulations are implemented to investigate how to layer the FOPT materials for obtaining higher cooling capacity. Moreover, based on entropy generation minimization, optimization of the regenerator geometry and related operating parameters is presented for improving the AMR efficiency. In addition, simulations are carried out to investigate the potential of applying nanofluid in future magnetic refrigerators.
Original language | English |
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Title of host publication | Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems (ECOS 2016) |
Publication date | 2016 |
Article number | PAP-433 |
Publication status | Published - 2016 |
Event | 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems - Hotel St. Bernardin, Portorož, Slovenia Duration: 19 Jun 2016 → 23 Aug 2016 Conference number: 29 http://www.ecos2016.si/ |
Conference
Conference | 29th International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems |
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Number | 29 |
Location | Hotel St. Bernardin |
Country/Territory | Slovenia |
City | Portorož |
Period | 19/06/2016 → 23/08/2016 |
Internet address |