非平衡ディスク形MHD発電機の不純物混入時の性能改善対策の検討

抄録

At first, the authors investigate in detail the performance of an impurity-contaminated nonequilibrium disk MHD generator using cesium seeded argon plasma through the quasi-one-dimensional time-dependent numerical analyses and, using the obtained information, propose a new control method for performance improvement of impurity-contaminated generator. The method is applicable even in the case the impurity concentration varies in time, and it is expected that the performance is perfectly recovered from the deterioration and the electrical output power of the generator is always regulated at its nominal value. Next, a time-dependent numerical simulation is carried out for the generator controlled by the proposed method in the case the impurity concentration varies in time, and it is confirmed that the proposed control method has excellent effects as expected on the performance improvement of impurity-contaminated generator.