Testing and model validation of a prototype moving packed-bed particle-to-sCO2 heat exchanger

The performance evaluation and model comparison of a prototype 100 kWt moving packed-bed heat exchanger for particle-to-sCO2 heat transfer is reported. The heat exchanger design entails a shell-and-plate configuration where particles move in a dense granular flow under the force of gravity. Details of the heat exchanger test including particle heat addition, sCO2 working fluid delivery, and thermal performance measurement technique are reported. Overall heat transfer coefficients at intermediate temperature (