Optimization of disk generator performance for base-load power plant systems applications

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:5411765

Teare, J D; Loubsky, W J; Lytle, J K; Louis, J F

Disk generators for use in base-load MHD power plants are examined for both open-cycle and closed-cycle operating modes. The OCD cases are compared with PSPEC results for a linear channel; enthalpy extractions up to 23% with 71% isentropic efficiency are achievable with generator inlet conditions similar to those used in PSPEC, thus confirming that the disk configuration is a viable alternative for base-load power generation. The evaluation of closed-cycle disks includes use of a simplified cycle model. High system efficiencies over a wide range of power levels are obtained for effective Hall coefficients in the range 2.3 to 4.9. Cases with higher turbulence (implying ..beta../sub eff/ less than or equal to 2.4) yield high system efficiencies at power levels of 100 to 500 MW/sub e/. All these CCD cases compare favorably with linear channels reported in the GE ECAS study, yielding higher isentropic efficiences for a given enthalpy extraction. Power densities in the range 70 to 170 MW/m/sup 3/ appear feasible, leading to very compact generator configurations.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (USA)
• DOE Contract Number: AC01-79ET15518
• OSTI ID: 5411765
• Report Number(s): CONF-800617-6; TRN: 80-011340
• Resource Relation: Conference: 7. international conference on MHD electrical power generation, Cambridge, MA, USA, 16 Jun 1980
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
DISK MHD GENERATORS
OPTIMIZATION
PERFORMANCE
CLOSED-CYCLE MHD GENERATORS
EVALUATION
FLOW MODELS
MHD POWER PLANTS
OPEN-CYCLE MHD GENERATORS
THERMAL EFFICIENCY
DIRECT ENERGY CONVERTERS
EFFICIENCY
MATHEMATICAL MODELS
MHD GENERATORS
POWER PLANTS
300101* - MHD Generators- Design & Development
300102 - MHD Generators- Performance & Testing