Experiments of the Improvement in the Performance of a Disk CCMHD Generator

The present experimental study has aimed the improvement in the performance of a shock-tube driven disk CCMHD generator. For that purpose, an experimental set-up was arranged as follows: (1) An inlet swirl was introduced. (2) An area ratio of the disk generator was small. (3) A cesium seeded helium gas was used as working medium. Not only these factors but also a production of a homogeneous plasma contributed to outstanding performance of an isentropic efficiency of 63% and an enthalpy extraction ratio of 30.8% at a stagnation temperature of 2250K and stagnation pressure of 0.14MPa. Furthermore, a maximum electrical power output of 1.23MW and a maximum power density of 297MW/m³ were obtained.