This study examines thermoelectrics to cool the flowing coolant inside a water block. There were two identical thermoelectrics with a type of TEC2-25408 and dimension of 40 mm x 40 mm x 3.74 mm. The cold side of the thermoelectric was affixed to the top surface of water block, while the hot side of the thermoelectric was attached to the heat pipe. The mass flow rates of the coolant were varied…