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Thermal generator having a magnetocaloric material

A technology of magnetocaloric materials and heat generators, which can be applied to machines using electrical/magnetic effects, machine operation modes, energy-saving heating/cooling, etc., and can solve problems such as insufficient thermal efficiency

Inactive Publication Date: 2010-12-08
COOLTECH APPL SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, disadvantages associated with a single heat transfer fluid flowing in the hot element for both the cold and hot circuits are also encountered
Therefore, the thermal efficiency of this method is insufficient

Method used

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  • Thermal generator having a magnetocaloric material
  • Thermal generator having a magnetocaloric material
  • Thermal generator having a magnetocaloric material

Examples

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Embodiment Construction

[0023] refer to figure 1 and 2 , a heat generator 1 of magnetocaloric material according to the invention comprises a fixed support in the form of a plate 2 arranged to carry at least two, and in the example shown eight, magnetocaloric material Thermal element3. The generator also includes: a magnetic part 4, which can move relative to the thermal element 3, so that the thermal element is subjected to a change in the magnetic field to change their temperature; and a heat and cold energy recovery part 5, which recovers the thermal energy emitted by said thermal element 3 (calorie) and cold energy. Said recovery part 5 comprises in particular two separate heat transfer fluid circuits 51 , 52 that are hydraulically sealed to each other, namely a "hot" circuit 51 recovering thermal energy and a "cold" circuit recovering cold energy, each circuit 51 and 52 being connected to At least one heat exchanger capable of using these thermal and cooling energies is connected for industri...

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Abstract

The present invention relates to a non-polluting thermal generator having a very good energy efficiency and a simple and economical design, low consumption of energy, all while being scalable, versatile and modular. In this thermal generator (1), the thermal elements (3) composed of magnetocaloric material each comprise two distinct collector circuits (31, 32), one hot collector circuit (31) being connected to a hot heat transfer fluid circuit (51) and one cold collector circuit (32) being connected to a cold heat transfer fluid circuit (52). The heat transfer fluid is set in alternating motion in one or the other collector circuit (31, 32) depending on whether the thermal elements (3) are subjected to or not subjected to the magnetic field generated by the magnets (40) rotating about a central axis (B) with regard to the thermal elements (3). The heat transfer fluid circuits (51, 52) are integrated, in part, in a plate (2) supporting the thermal elements (3) and are connected to external circuits comprising heat exchangers (55, 56) using the calories and the negative calories generated by the thermal elements (3). The applications of the invention include: heating, tempering, air-conditioning, and refrigeration in every industrial installation and every household application.

Description

technical field [0001] The invention relates to a heat generator of magnetocaloric material, comprising: at least one fixed support carrying at least two heating elements of magnetocaloric material; The thermal element is subjected to changes in the magnetic field to change its temperature; and heat and cold energy recovery components, which recover the heat and cold energy emitted by the thermal element, and include at least two heat-carrying fluid circuits, a "hot" circuit and a "cold" circuit "Circuit, each circuit is connected to at least one heat exchanger, and is provided with conversion means, so that corresponding thermal elements are alternately placed in said circuit. Background technique [0002] Magnetocaloric heat generators utilize the magnetocaloric properties of certain materials, such as gadolinium or certain alloys, which have the ability to generate heat under the action of a magnetic field and cool to a temperature below their initial temperature after th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B21/00
CPCY02B30/66F25B2321/0022F25B21/00Y02B30/00
Inventor J-L·迪潘J-C·海策勒C·穆勒
Owner COOLTECH APPL SAS
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