Large Enthalpy Extraction Experiments in a Non-Equilibrium Magneto-Hydrodynamic Generator,
Abstract
A measure of the performance of a magnetohydrodynamic (MHD) generator is the power out/heat in (enthalpy extraction) which must exceed 20% to provide efficient operation in a thermodynamic Brayton, power cycle. For the first time 19.3% enthalpy extraction has been achieved in a supersonic MHD generator operating under non-equilibrium plasma conditions. The power output was 1.82 megawatts. The test gas was cesium seeded neon heated to a temperature of 3520K in a shock tunnel. The MHD channel had an area ratio of six to one and seventy-one pairs of electrodes. The electrodes were at room temperature. Theoretical calculations show that if thermionically emitting electrodes were used, 30% enthalpy extraction could be obtained.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 29, 1974
- Accession Number
- AD0784288
Entities
People
- B. Zauderer
- C. Marston
- E. Tate
Organizations
- General Electric