الفهرس 
Characteristic values of a coolerOnly 14 pages are availabe for public view
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Abstract
In the present theoretical model, the continuity, momentum and energy equations are solved numerically by using the finite volume technique using Ansys Fluent software. This work provides a theoretical investigation to study the effect of different operational parameters on the performance of TE cooling system including the system COP and the rate of heat transfer. The parameters investigated are, the applied input power, inlet working fluid velocity, the arrangement of utilized TECs modules and fluid type. The geometry is created with ANSYS multi-physics software as a threedimensional base case, it is consisted from two attached horizontal ducts of length (520 mm) and (560 mm), the interface surface between the two ducts contains three thermoelectric modules (4 mm height by 40 mm wide and 40 mm length). The distance between two consecutive thermoelectric modules (150 mm), the inlet and outlet duct diameter (15 mm) and the height of each duct (10 cm), the inlet voltage to thermoelectric modules ranges from 8 V to 12 V and the water inlet velocity to the two ducts from 0.001 to 0.01 m/s. Theoretical results showed that the overall COP of TE cooling system is increased with the applied input power up to 8.0W then it decreases with input power up to 18W after that it decreases slightly, a noticeable enhancement in the COP is found when The three TECs are in use (Case 10) and the COP of TE cooling system using pure water and nanofluid with 0.05% of nanoparticles as coolants takes the maximum value. The present experimental work investigates the effect of the applied input power, inlet fluid velocity and the arrangement of TEC in use on the performance of TEC, the range of the applied input power from 16 to 48 W, the range of velocity from 0.0 to 0.001 m/s is studied. The test rig consists of three thermoelectric modules, each of the thermoelectric cooler has heat sinks ii ABSTRACT and cooling fluid on both of its sides, Also there are two electric pump motors responsible for the flow of fluid in the duct flow, and two suction fans. The heat transfer and the coefficient of performance of thermoelectric cooling system are calculated. Experimental results showed that the minimum power consumption and maximum coefficient of performance occurs at lower values of the voltage applied, and best case of performance of TEC is when the input power is 16 W. The effects of fluid inlet velocity and TEC arrangement are investigated. Results are compared with the theoretical experience to verify the authenticity explanation of state. Comparing between theoretical and experimental results is good agreement. Finally the comparison between present and previous work take fairly agreement. A correlation of the performance of TEC system is obtained.