Abstract
CCMHD power generation experiments using a shock-tube driven disk generator have been conducted to achieve high performance. Despite of a small-scale channel having a generating volume of 4.1 liter, outstanding performance: an isentropic efficiency of 63 %, an enthalpy extraction ratio of 30.8 % are achieved at a stagnation temperature of 2250 K and a stagnation pressure of 0.14 MPa, where an applied magnetic flux density is 3.0 T. Furthermore, a maximum electrical power output of 1.23 MW and a maximum power density of 297 MW/m 3 are obtained. The following facts contribute to a world’s highest performance of CCMHD power generation, a small area ratio of the disk channel; an employment of a cesium seeded helium gas: an introduction of an inlet swirl; and a production of homogeneous plasma.
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