Heating system for use in on-board kitchens in means of transport and a method for heating food on board means of transport, in particular aircraft
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For use on board a mobile means of transport (eg. aircraft, bus, ship), a heating system and method are described which lead to a reduction of peak demand in the on-board kitchen energy supply system relating to the integrated heating appliances for the warming or heating of food. For this, latent o
For use on board a mobile means of transport (eg. aircraft, bus, ship), a heating system and method are described which lead to a reduction of peak demand in the on-board kitchen energy supply system relating to the integrated heating appliances for the warming or heating of food. For this, latent or thermochemical heat storage units are used which are fully integrated into the structural elements of the heating appliance in question and heats the product in such a way that there is sufficient heat output, while at the same time, the absolute temperature is limited by means of an appropriate choice of heat storage material for product enhancement.
대표청구항▼
The invention claimed is: 1. Heating system for heating a product for use in on-board kitchens of means of transport, the heating system, comprising: a heating area; catering containers arranged in the heating areas; electric heating elements; a heat storage unit coupled to the electric heating ele
The invention claimed is: 1. Heating system for heating a product for use in on-board kitchens of means of transport, the heating system, comprising: a heating area; catering containers arranged in the heating areas; electric heating elements; a heat storage unit coupled to the electric heating elements; wherein the electrical heating elements are arranged for providing at least a partial heat supply to the product based on thermochemical heat storage; wherein the heat storage is thermochemical heat storage; wherein a high temperature metal hydride is used as the thermochemical heat storage unit. 2. The heating system of claim 1, wherein the heat storage unit is connected to a hydrogen storage unit by means of a hydrogen routing system and a first valve or to a central hydrogen producer by means of a second valve. 3. The heating system of claim 1, wherein a heat output sufficient to heat the product can be achieved, while at the same time the maximum temperature is limited by means of an appropriate choice of heat storage material. 4. The heating system of claim 1, further comprising a circulator for circulating a heat carrier for distributing the heat in the heating area. 5. The heating system of claim 1, comprising: a control unit; wherein the control unit controls the supply of electrical energy to the electrical heating elements, either by means of a direct current source or by means of the energy being released from a fuel cell. 6. Method for the heating of food on board means of transport, comprising the steps of: producing sufficient heat output to heat the product at the same time as the maximum temperature is limited by thermochemical heat storage units; actuating the heat storage units to work in conjunction with electrical heating elements of a heating area, wherein a high temperature metal hydride is used as at least one of the thermochemical heat storage units. 7. The method of claim 6, wherein the heating in the heating area is supplemented by an additional heat conveyor, so as to increase heat distribution. 8. A method for heating a product, comprising the steps of: producing sufficient heat output to heat the product at the same time as the maximum temperature is limited by latent or thermochemical heating storage units; actuating the heat storage units to work in conjunction with electrical heating elements of a heating area; taking hydrogen during the absorption phase, ie. during heat release from at least one of a decentralized hydrogen storage unit, hydrogen routing system and a central hydrogen producer when using a heat storage unit based on metal hydride; supplying the hydrogen during the desorption phase, ie. during heat take-up, to a decentralized hydrogen storage unit or a hydrogen routing system. 9. The method of claim 8, wherein the electric heating used to provide heat during the heat storage phase or as an optional addition to the heat output supplied by the heat storage unit during hydrogen absorption, is integrated into the components of the heating appliance in such a way that radiation heat from the electric heating elements does not lead to the product being spoilt. 10. A method for heating a product, comprising the steps of: producing sufficient heat output to heat the product at the same time as the maximum temperature is limited by latent or thermochemical heat storage units; actuating the heat storage units to work in conjunction with electrical heating elements of a heating area; combining a heating appliance with a fuel cell when using a heat storage unit based on metal hydride, and using the hydrogen supplied to produce additional electrical energy during the hydrogen desorption phase of the heat storage unit. 11. The method of claim 10, wherein extra electric energy produced by a fuel cell is made available to other users through an electrical energy supply, or used for an electrical heating of the heat storage unit during the heat storage phase. 12. A method of heating a product on board means of transport, comprising the steps of: producing sufficient heat output to heat the product at the same time as the maximum temperature is limited by latent or thermochemical heat storage units; actuating the heat storage units to work in conjunction with electrical heating elements of a heating area; wherein, the heat storage unit is heated up during periods of low loading in the an electrical on-board supply of the means of transport, and the heat storage unit supplies heat in an insulated heating area after catering containers with food have been pushed in. 13. A heating device for heating a product, comprising: a housing having a heating area adapted to accept product; a heating unit providing heat to said heating area; a heating storage unit associated with said heating area, said heat storage unit adapted to provide heat to said heating area based on thermochemical heat storage; wherein thermochemical heat storage is provided by high temperature metal hydride. 14. The heating device of claim 13, further comprising a hydrogen storage unit associated with said heat storage unit. 15. The heating device of claim 13, wherein the heat storage unit is utilized to provide heat to said heating area to raise the temperature of said heating area to a temperature beyond that capable by said heating unit alone. 16. The heating device of claim 13, further comprising a controller adapted to control the relative level of heat provided to the heating area by the heating unit and the heating storage unit, respectively.
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