WHO seeking nurses' input

Abstract

An experimental study on a vehicle was carried out to evaluate the electrical potential of a STEG (Solar Thermoelectric Generator) made up of 20 thermoelectric modules of 127 torques each and a vortex tube in order to supply the accessories of a vehicle hybrid while moving. This is because the device is supplied with air by a turbocharger mounted at the front of the vehicle which sucks this air and delivers it to the vortex tube, which in turn produces hot air and gas at each of its ends cold air. As a result, the temperature of the hot air adding to that of the solar radiation allows a higher temperature to be obtained on one of the faces of the STEG. On the other hand, the cold air coming out of the vortex tube contributes to obtaining a very low temperature on the other side of the STEG. Thus, thanks to this temperature difference, an electric current is generated while the vehicle is moving. The experimental results obtained could be compared with those of a validated and published mathematical modeling of the same device. As the results obtained, we have observed that at rest significant values of current, voltage and electric power are obtained and these drop and stabilize quickly when the vehicle starts to move. This decrease is justified by the impact of the wind which cools the system. But the presence of the vortex tube compensates for this. Thus for a speed of 33.33 m/s the hot temperature is around 76.1 °C, the cold temperature is around 2.1 °C, the generated current is 0.7742A, the voltage is 46.85 V and the power is 36.27 W. The results with those of a validated mathematical modeling of the same system made it possible to establish a certain similarity in their evolutions according to the speed of the vehicle.