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Experimental analysis of a new heat dissipater that reduces the constriction resistance appearing in the thermoelectric refrigeration

The heat flux addressing is a problem that always appears whenever heat flows from one region to another of different cross sectional area. It is known as the spreading/constriction resistance and always happens when dissipating heat through a Peltier pellet (narrow surface). In a previous work, a device capable of addressing the heat flux has been theoretically developed to reduce the spreading/constriction resistance. This work presents the experimental results of the temperature drop on this device and investigate if they are in agreement with the theoretical predictions. These results have later been compared with those obtained for a flat plate in order to check whether the device improves the thermoelectric module performance or not A brief description of the device operation as well as of some its components is also given.