Simulation of solid-state magnetocaloric refrigeration systems with Peltier elements as thermal diodes
2016 (English)In: International journal of refrigeration, ISSN 0140-7007, E-ISSN 1879-2081Article in journal (Refereed) Published
Magnetic refrigeration as an alternative for vapor-compression technology has been the subject of many recent studies. Most of the studies focus on systems with limited cycle frequency in which a fluid transfers heat to and from the magnetocaloric material. A suggested solution for increasing the frequency is use of solid-state magnetic refrigeration in which thermal diodes guide the heat from the cold end to the warm end. In this work a solid-state refrigeration system with Peltier elements as thermal diodes is modeled in details unprecedented. The performance of Peltier elements and magnetocaloric materials under their transient working conditions after reaching cyclic steady state are simulated by two separate computer models using finite element method and finite volume method. The models, in parts and as a whole, are verified. The verified finite element model is used for a parametric study and the results are analyzed.
Place, publisher, year, edition, pages
magnetic refrigeration, solid-state, Peltier element, thermal diode, heat gate, hybrid
Research subject Energy Technology
IdentifiersURN: urn:nbn:se:kth:diva-196515DOI: 10.1016/j.ijrefrig.2016.11.007OAI: oai:DiVA.org:kth-196515DiVA: diva2:1046751
QC 201611172016-11-152016-11-152016-11-17Bibliographically approved