An improved efficiency thermoelectric system is disclosed wherein convection is actively facilitated through a thermoelectric array. Thermoelectrics are commonly used for cooling and heating applications. Thermal power is convected through a thermoelectric array toward at least one side of the the
An improved efficiency thermoelectric system is disclosed wherein convection is actively facilitated through a thermoelectric array. Thermoelectrics are commonly used for cooling and heating applications. Thermal power is convected through a thermoelectric array toward at least one side of the thermoelectric array, which leads to increased efficiency. Several different configurations are disclosed to provide convective thermal power transport, using a convective medium. In addition, a control system is disclosed which responds to one or more inputs to make adjustments to the thermoelectric system.
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What is claimed is: 1. A thermoelectric system comprising: at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, wherein the at le
What is claimed is: 1. A thermoelectric system comprising: at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, wherein the at least one thermoelectric element permits flow of at least one convective medium through the at least one thermoelectric element to provide generally steady-state convective heat transport toward at least one side of the at least one thermoelectric element, wherein the at least one convective medium flows generally from the at least one second side to the at least one first side. 2. A thermoelectric system comprising: at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, wherein the at least one thermoelectric element permits flow of at least one convective medium through the at least one thermoelectric element to provide generally steady-state convective heat transport toward at least one side of the at least one thermoelectric element, wherein the at least one convective medium flows through the at least one thermoelectric element. 3. The thermoelectric system of claim 1, wherein the at least one convective medium flows along the at least one thermoelectric element. 4. The thermoelectric system of claim 3, further comprising at least one additional thermoelectric element. 5. The thermoelectric system of claim 4, wherein the at least two thermoelectric elements form concentric tubes with the convective medium flow between the concentric tubes. 6. A thermoelectric system comprising: at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, wherein the at least one thermoelectric element permits flow of at least one convective medium through the at least one thermoelectric element to provide generally steady-state convective heat transport toward at least one side of the thermoelectric element, wherein at least part of the convective medium is a thermoelectric material, said convective medium thermoelectric material also forming at least a portion of the at least one thermoelectric element. 7. The thermoelectric system of claim 6, wherein said convective medium thermoelectric material forms at least a portion of the thermoelectric element, and a solid thermoelectric material forms a second portion of the at least one thermoelectric element. 8. The thermoelectric system of claim 1, wherein at least part of the convective medium is a fluid. 9. The thermoelectric system of claim 1, wherein at least part of the convective medium is a solid. 10. The thermoelectric system of claim 1, wherein at least part of the convective medium is a mixture of fluid and solid. 11. The thermoelectric system of claim 1, wherein at least a portion of the at least one thermoelectric element comprises at least one heat transfer feature that improves heat transfer between at least some of the at least one convective medium and the at least one thermoelectric element. 12. A method of improving efficiency in a thermoelectric system having at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, the method comprising actively convecting heat through the at least one thermoelectric element in a generally steady-state manner, wherein actively convecting heat comprises flowing at least one convective medium through the at least one thermoelectric element. 13. A thermoelectric system comprising: at least one thermoelectric element comprising at least one first side and at least one second side, the at least one first side and the at least one second side having a temperature gradient between them during operation, wherein at least a portion of the thermoelectric element permits flow of at least one convective medium through the at least a portion of the thermoelectric element to provide generally steady-state convection toward at least one side of the thermoelectric element; and at least one control system, said control system comprising: at least one controller, at least one input coupled to at least one controller, and at least one output coupled to at least one controller and to said thermoelectric element, said output controllable by said controller to modify at least one characteristic of said thermoelectric element. 14. The thermoelectric system of claim 13, wherein the at least one characteristic impacts the convective heat transport, and wherein the control system improves efficiency by modifying the at least one characteristic. 15. The thermoelectric system of claim 13, wherein the control system varies at least a flow current of the at least one convective medium. 16. The thermoelectric system of claim 2, wherein the at least one convective medium flows through the at least one thermoelectric element in at least two general directions.
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