Magnetocaloric thermal generator

摘要

A heat generator (1) comprises at least one thermal module (1′) which contains at least two adjacent magnetocaloric elements (2), and a common distribution chamber (3), associated with a heat transfer fluid circulation device (4), fluidly connects the adjacent magnetocaloric elements (2) with one another. Two end chambers (5, 6) are associated with a circulation means (7) and fluidly connected each with the two magnetocaloric elements (2) located at the hot end (9) and a cold (11) end of the thermal module (1). A magnetic arrangement of the heat generator (1) subjects each of the magnetocaloric element (2) to a variable magnetic field. The circulation mechanism (4), associated with the common distribution chamber (3), moves the heat transfer fluid simultaneously through the two adjacent magnetocaloric elements (2) in different circulation directions.

主权项

1. A heat generator (1, 10) comprising:
at least one thermal module (1′, 10′) containing at least two adjacent magnetocaloric elements (2) arranged for being passed through by a heat transfer fluid, a common distribution chamber (3) being associated with a heat transfer fluid circulation means (4) fluidly connecting the adjacent magnetocaloric elements (2) and two end chambers (5, 6) also associated with a circulation means (7) with each other and fluidly connected respectively with the magnetocaloric element (2) located at the ends of the thermal module (1′, 10′) which are a hot end (9) and a cold end (11), a magnetic arrangement of the heat generator (1, 10) subjecting each magnetocaloric element (2) to a variable magnetic field to create alternately, in each magnetocaloric element (2), a heating cycle and a cooling cycle, and circulation of the heat transfer fluid through the magnetocaloric elements (2) being ensured by the circulation means (4, 7), in synchronization with the variation of the magnetic field, wherein the circulation means (4), associated with the common chamber (3), displaces the heat transfer fluid simultaneously through the two adjacent magnetocaloric elements (2) in different circulation directions.