Experimental study of temperature fields and thermal fluxes in the electrode walls of an MGD accelerator

Journal Article · Tue Jul 01 00:00:00 EDT 1980 · High Temp. (Engl. Transl.); (United States)

OSTI ID:6576374

Alferov, V I; Vitkovskaya, O N; Panfilova, O V; Rudakova, A P; Sukhobokov, A D; Shcherbakov, G I

Results are presented of an experimental study of the features of heat transfer from a flow of air with KNa admixture to the electrode walls of an MGD accelerator in a wide range of operating modes (B=1--2.5 T,j=4--45 A/cm/sup 2/,P/sub st/0.2=(en-dash0.5)x10/sup 5/ Pa). Data are obtained on the size and distribution of the thermal fluxes in different zones of an MGD channel and over the electrodes, taken separately. Methods are chosen for calculating the convective thermal flux on the electrode walls over the entire length of the accelerator channel, and the values of the thermal flux in the discharge zone due to processes at the electrodes are determined. A possible explanation is proposed for the difference between the values of the thermal fluxes at the electrode walls over different portions of the MGD channel, which is based on features of the behavior of microarcs on the surface of the electrodes.

• Research Organization: Moscow
• OSTI ID: 6576374
• Journal Information: High Temp. (Engl. Transl.); (United States), Vol. 18:1
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
MHD GENERATORS
ELECTRODES
HEAT FLUX
AIR
CONVECTION
CURRENT DENSITY
FUNCTIONS
HEAT TRANSFER
MIXTURES
POTASSIUM
SODIUM
TEMPERATURE GRADIENTS
ALKALI METALS
DIRECT ENERGY CONVERTERS
DISPERSIONS
ELEMENTS
ENERGY TRANSFER
FLUIDS
GASES
METALS
300102* - MHD Generators- Performance & Testing